The enigma behind America’s 20-year lobster boom

Drizzled in butter or slathered in mayo—or heaped atop 100% all-natural Angus beef, perhaps? The question of how you like your lobster roll is no longer the sole province of foodies, coastal New Englanders, and people who summer in Maine. American lobster has gone mainstream, launching food trucks from Georgia to Oregon, and debuting on menus at McDonald’s and Shake Shack.

Unlike almost anything else that gets eaten on a bun, Maine lobster is wild-caught—which typically makes seafood pricier. So how has lobster gone from luxury eat to food-truck treat?

The reason boils down to plentiful supply, plain and simple. In fact, the state’s lobster business is the only fishery on the planet that has endured for more than a century and yet produces more volume and value than ever before. And not just slightly more. Last year, Maine fishermen hauled ashore 124 million pounds of lobsters, six times more than what they’d caught in 1984. The $456 million in value those landings totaled was nearly 20% higher than any other year in history, in real terms. These days, around 85% of American lobster caught in the US is landed in Maine—more than ever before.

Even more remarkable than sheer volume, though, is that this sudden sixfold surge has no clear explanation. A rise in sea temperatures, which has sped up lobster growth and opened up new coastal habitats for baby lobsters, is one likely reason. Another is that by plundering cod and other big fish in the Gulf of Maine, we’ve thinned out the predators that long kept lobster numbers in check. Both are strong hypotheses, yet no one’s sure we really understand what’s going on.

Even as biologists puzzle over Maine’s strange serendipity, a more ominous mystery is emerging. A scientist who tracks baby lobsters reports that in the last few years their numbers have abruptly plummeted, up and down Maine’s coast. With the number of breeding lobsters at an all-time high, it’s unclear why the baby lobster population would be cratering—let alone what it portends. It could reflect a benign shift in baby lobster habitats. Or it could be that the two-decade boom is already on its way to a bust. To form a clearer picture why, we first need to unravel the possible causes of the current lobster glut.

Maine lobstermen: early adopter conservationists

A classic Maine lobster roll.(Yuri Long on Flickr, under CC-BY-2.0 (image has been cropped))

For a long time, the common wisdom was that more than 80% of Maine lobsters of legally harvestable size are killed each year, to be minced into bisque or slathered onto rolls. When you’re blotting out that many of them, how do you guarantee a steady supply of baby lobsters to keep the population growing?

Maine lobstermen approach this question differently from almost any other fishery—and have for more than half a century. Most fisheries forbid fishermen from bringing to shore fish under a certain size, and limit the accumulated weight of fish caught. The idea is to protect the juveniles so that they can propagate the species.

But the logic of this strategy defies biology—particularly in the sea, where many species tend to grow more fertile with age.

 Maine’s policies leave bigger lobsters and fecund females to replace the ones we eat. 

Lobsters are a case in point. When a female produces eggs, they cling by the thousands to her underside like clusters of tiny, dark-green berries. Egg production generally rises exponentially with a female lobster’s size (a decent proxy for age since we still don’t know how to tell how old lobsters are). An eight-inch female carries half as many eggs as a 10-incher, and one-quarter the number of eggs clinging to a foot-long female, and so on.

Rather than ignore the science, as many fisheries do, Maine scientists and lawmakers recognized early on that protecting big lobsters preserved the breeding stock. And not just big females. Since they prefer even heftier mates, big male lobsters needed protection too. Starting in 1933, lobstermen were required to throw back any “jumbos,” lobsters larger than 4 and 3/4 inches, measured from eye socket to tail (these days it’s 5 inches). They also must release “shorts”—specimens smaller than 3 1/4 inches.

Then there’s the opt-in conservationism of “v-notching.” For half a century, Maine custom has obligated lobstermen not just to throw back any egg-bearing females they caught; but also first to cut out a “v” into her back tail-flipper. This mark, which her shell will bear for decades, signals to anyone who catches her in the future that she is fertile and must be thrown back. (The practice officially became law a little over a decade ago.)

The upshot of these policies is that Maine lobstermen only catch medium-sized lobsters that haven’t been caught bearing eggs. This leaves bigger lobsters and fecund females to replace the ones we eat.

Doomsday prophecies

In this Tuesday, July 29, 2014 photo, a lobsterman displays the tail flipper of a V-notched female lobster while fishing off Monhegan Island, Maine. V-notching is a mandatory practice in which Maine lobstermen mark an egg-bearing lobster on its tail before returning it to the water. (AP Photo/Robert F. Bukaty
A “v-notched” female caught off Monhegan Island, Maine.(AP Photo/Robert F. Bukaty)

But in the 1970s and ’80s, government scientists doubted the benefits of this elective environmentalism. Many warned that Maine’s lobster industry was on the brink of collapse.

 “They’re fishing the lobster population way over the maximum that it can support.” 

“Over-exploitation certainly does exist now,” James Thomas, the state’s leading biologist, said in 1980, as Colin Woodard recounts in The Lobster Coast. “They’re fishing the lobster population way over the maximum that it can support.”

It’s not hard to see why he and others thought that. For four decades, Maine lobstermen had hauled in around 20 million pounds a year, on average. More and more fishermen were turning to lobstering as groundfish like cod and hake were depleted—which meant more traps in the water. In 1950, Maine lobstermen landed about 18 million pounds of lobster with around 430,000 traps. By 1975, the number of traps had more than quadrupled to 1.8 million. Yet lobstermen caught just 16 million pounds of lobster.

This pattern looked a lot like other fisheries on the eve of collapse: more boats, more men, more effort—and less to show for it.

Then, out of nowhere, in the early 1990s, lobster landings surged. By the end of the decade, Maine’s lobstermen were hauling ashore 50 million pounds of the big-clawed crustaceans each year.

At the time, this was hailed as a triumph of Maine lobstermen’s ethics and foresight. As industrial trawling was decimating fishing stocks up and down the Atlantic seaboard, Maine’s lobster boom seemed proof of the self-sustaining virtues of communitarian, artisanal fishing.

It’s a story you want to believe. But lobstering policies are only a tiny sliver of the real ecological drama underway. By the late 2000s, it was clear that Maine’s lobster population exploded beyond any proportions that could be explained as dividends from sound conservation alone.

Will this bonanza continue? That would be easier to answer if we knew for sure what was causing it. The problem is, we don’t.

Behind Maine’s mysterious lobster bonanza

Brandon Demmons measures the carapace, the shell of the lobster, to determine if the crustacean is within the legal size limits while working as a sternman aboard aboard a lobster fishing boat off of Monhegan Island, Maine, Tuesday, July 29, 2014. (AP Photo/Robert F. Bukaty
A Maine lobstermen measures his catch.(AP Photo/Robert F. Bukaty)

Some obvious factors may help explain what’s going on. The increase in traps is likely part of it, as is the improvement in lobstering technology. But a much bigger cause is probably that the Gulf of Maine—the shallow patch of sea between Cape Cod and the southern tip of Nova Scotia—has been heating up faster than 99.9% of the world’s oceans.

The range of the American lobster.(Oceans and Fisheries Canada)

Cooled by the Labrador Current that swoops down from the Arctic, the Gulf of Maine is much chillier than the rest of the Atlantic coast. This is ideal for American lobsters, which generally prefer waters between about 41°F and 64.4°F (5-18°C). Historically, that’s kept the lobster population centered around Maine’s southern shores.

 The Gulf of Maine has been heating up faster than 99.9% of the world’s oceans. 

Before 2004, average temperatures in the Gulf of Maine had been notching up at a rate of about 1.8°F every four decades. Then they abruptly began rising at a much steeper rate—1.8°F every four years—according to a 2013 study (pdf) by a team of scholars mostly from the University of Maine.

The brisk clip of warming has pushed lobsters steadily north. Bob Steneck, ecology professor at University of Maine, has traced that lobstering “sweet spot” as it’s crept up the coast, first from Casco Bay, off Portland in southern Maine, in the 1980s to where it is today—in Stonington, about 100 miles to the northeast.

For historical continuity, landings of Knox and Waldo counties are combined.

This lobster migration isn’t just about comfort. Whether and when they pass to the next stage of their lifecycle often depends on finding seas that are suitably temperate.

Helping lobsters bulk up

DATE IMPORTED:February 23, 2012Maine State Aquarium Manager Aimee Hayden-Roderiques is pictured holding "Rocky", the 27-lb lobster donated by a shrimp dragger to the Aquarium in this handout photo obtained by Reuters February 23, 2012. The lobster, the largest ever recorded caught in Maine, was released into the ocean Thursday. REUTERS/Maine Department of Marine Resources
A 27-pound lobster caught in 2012 by a Maine shrimp dragger.(Reuters/Maine Department of Marine Resources)

In lobster land, size is survival. Big lobsters can muscle their way into choice dens, deter predators, and—for males at least—attract mates. The crustacean grows much faster in relatively warmer seas. A southern New England lobster reaches harvestable size in about five years. In the frosty waters of Canada’s Bay of Fundy, on Maine’s eastern border, it can take from six to 10 years. In addition, females in more temperate waters become fertile younger. Southern New England females, for instance, reach sexual maturity when they’re around half an inch smaller than their Bay of Fundy cousins.

Their search for warmth spurs a semi-annual lobster migration. Icy winds that whip off the land in winter chill inshore shallows, sending lobsters scuttling down the coastal shelf to relatively warmer pockets. Then as the sun heats the sea in late spring, lobsters awaken from their torpor and trek back toward the shore to eat, mate, and bulk up.

 The price of your lobster roll ultimately depends on how many of these babies survive. 

Egg-bearing females are particularly hell-bent on escaping the cold. During the nine to 12 months the eggs layer a female’s underside, they require enough warmth to develop. And only when seas are sufficiently summery—typically in June in southern New England, and well into August the closer you get to Canada—will the babies hatch into shrimp-like larvae.

At the mercy of currents, wind, temperatures, and the appetites of passing fish, the vast majority don’t make it. Those lucky few that do will, within a month or two, have grown into a tiny, fully-formed lobster about the size of a cricket. Now big enough to swim, these larvae dive to the seafloor to settle in rocky crannies, where they’ll hide out for the next few years, until they’re big enough to fend for themselves.

The price of your lobster roll ultimately depends on how many of these babies survive. It seems clear that many multiples more little lobsters are making it into adulthood—and eventually onto butter-sopped buns—than in the past. This probably has something to do with the fact that, like their parents, babies also benefit from milder Gulf of Maine temperatures.

Location, location, location

A baby lobster (a.k.a. “young of year”).(Rick Wahle)

Even in deep summer, the waters of eastern Maine and Canada’s Bay of Fundy have traditionally been bracingly chilly. This is fine for adult lobsters. Their offspring have a tougher time, though. Lab experiments suggest that in seas below about 54°F—a common enough summer temperature in those areas—many babies struggle to survive at all. Even among the hardier specimens, few grow big enough fast enough to make that crucial descent to the seabed.

“Young of year” refers to recently settled baby lobsters.(American Lobster Settlement Index, via Gulf of Maine Council on the Marine Environment)

In the early 2000s, however, the Bay of Fundy stopped being such a baby lobster deathtrap. This discovery came from Rick Wahle, a biologist at the University of Maine who developed a sampling method used to count baby lobsters settled in the Bay of Fundy’s Beaver Harbor since 1989 (the data were generated by Canadian biologist Peter Lawton). For more than a decade, the team of divers found fewer than one baby per square meter, on average. Then babies started moving in. In 2005 and 2008, they found more than seven settled baby lobsters per square meter, on average.

A similar upswing was underway on the other side of the border, in eastern Maine, whose waters also have long been too cold for baby lobsters. It seems likely that the warming of these typically colder northeastern swaths of the Gulf of Maine was letting more babies make it to the sea bottom, where they found the gravelly detritus left by ice age glaciers.

This “cobble,” as scientists call it, makes the perfect nurseries for baby lobsters. And once settled, they were clearly thriving. A few years after Wahle started tracking the baby settlement uptick, lobster landings both in the Bay of Fundy and in counties Down East, as Mainers refer to the their state’s northeastern edge, soared.

Warming may only be half the answer

A juvenile lobster in its preferred habitat: cobble in the Gulf of Maine.(Rick Wahle, via NOAA Photo Gallery on Flickr, CC-by-2.0. (Image has been cropped))

Intuitively, spiking sea temperatures seem a pretty solid explanation for much of the Maine lobster boom. More females giving birth at smaller sizes—before they can be legally caught—not only means more babies per each new generation. It also means more v-notched females. Finally, thanks to warmer seas and plum new habitats, more babies than before are surviving.

Statistics seem to bear that out: Even if you strip away the overall trend and focus on the discrete changes, the warming trend and the leap in lobster landings line up pretty clearly, says Andrew Pershing, chief scientist at the Gulf of Maine Research Institute (GMRI).

But the causal effect suggested in this relationship isn’t as obvious as it might seem.

 Thanks to warmer seas and plum new habitats, more babies than before are surviving. 

“That [correlation] could be [a sign of] more lobsters over the 30 year period,” says Pershing, “But year to year, it’s also that in warm years we catch more lobsters—you basically have this period in the summer where it’s warmer and lobsters are active and you can catch them really quickly.”

In other words, we know that Maine lobstermen are catching a lot more than usual, and temperature is very likely part of the cause. But we don’t know whether there are actually more lobsters down there, or whether the warmer water is making them easier to catch.

And then there’s this point, which appears to undercut the thesis: The very beginnings of the great Maine lobster surge predates the Gulf of Maine’s big temperature rise by roughly a decade.

Man and cod

A fisherman dries codfish in Vinalhaven, Maine, circa 1936.(Flickr user rich701, licensed under CC-BY-2.0 (image has been cropped).)

The second big hypothesis behind the sudden lobster abundance is simply that human seafood-lovers have rubbed out many of their predators—sharks, hakes, haddock, skates, rays, and above all, cod.

As voracious as they are massive—they can grow up to 2 meters (6.6 feet)—cod zip through the northeastern Atlantic with their mouths agape, gulping down worms, shrimps, herring and whatever else they can swallow. Including, of course, lobsters. Throughout much of the last millennium, European fleets trolled the Atlantic in search of cod. But it wasn’t until the 1930s, when refrigerators let fishermen catch cod with abandon, and throughout the next few decades, as fishermen souped up their trawlers in engines, that Maine’s cod population dwindled dangerously.

Atlantic cod abundance.(“American lobster dynamics in a brave new ocean,” Steneck and Wahle, 2013 (modified from Sosebee and Cadrin, 2006))

This would throw any ecosystem out of whack. But Maine’s is uniquely flimsy. One of the planet’s youngest oceans, the North Atlantic also claims an unusually low diversity of species. The sparse lattice of creatures in Maine’s food chain mean that even a small change in one species’ population can throw others out of whack. This makes for sudden booms, and just as sudden busts.

Cod sit at the very tip-top of this unusually fragile food chain—an “apex predator,” as they’re called, that keeps lobsters and other species in check. With cod and its fellow apex predators obliterated, the creatures that they once ate exploded in number. And because these smaller creatures tend to feed on cod eggs and larvae, they may be making it hard or even impossible for cod and other apex predators to bounce back.

There may be another factor at play, though. Heavy fishing not only shrank cod numbers; it also shrank their average body sizes. Research suggests the average cod size fell 20% between 1997 and 2007. A recent study (paywall) by Rick Wahle and colleagues linked the lobster boom more closely to the shrinking sizes of predator fish, than the population decline itself.

 Cod are an “apex predator” that keeps lobsters and other species in check. 

Normally, roving predators restrict lobsters to tiptoeing around their rocky grottoes. With fewer—and much wimpier—predators to worry about, lobsters can wander unprotected seabed terrains with new abandon. Both Wahle and GRMI’s Pershing say this is consistent with what they hear from lobstermen: They’re catching lobsters in areas that, two decades ago, lobsters never went.

So the boom might not just be due to abundance. The fact that lobsters are no longer stuck cowering in their craggy dens may also be making them easier to catch.

Domesticating the American lobster

Allan Stone, of Scarborough, Maine, cooks about 100 lobsters as he and his friends spend time tailgating in the parking lot of Gillette Stadium before an NFL football game between the New England Patriots and Jacksonville Jaguars, Sunday, Sept. 27, 2015, in Foxborough, Mass. (AP Photo/Charles Krupa
Cheap lobsters at a tailgate party.(AP Photo/Charles Krupa)

If shrinking cod tilted the ecosystem in favor of lobsters, fishermen then unwittingly gave the crustaceans another boost—what UMaine’s Bob Steneck calls “the domestication of the Gulf of Maine.”

“We did it on land literally thousands of years ago,” he says. “Removing the predators and adding food is generally good animal husbandry.”

In the case of Maine’s lobsters, that second part of the domestication equation—adding food—hinges on herring. With cod and other herring predators winnowed down in size and number, the cheaper, smaller fish were becoming more plentiful. Americans don’t much care for herring. But lobsters sure like it.

These days, herring is the prime bait used in lobster traps, the few-foot-tall metal crates. Here’s a demonstration of how one works:

Despite their names, they don’t actually “trap” at all. Using undersea cameras to spy on a trap, scientists discovered that only 6% of lobsters that wandered into a trap stuck around long enough to get hauled to the surface. Why do so many lobsters mosey through and then leave? For the all-you-can-nibble herring, naturally.

In this Wednesday, July 8, 2015 photo, herring are unloaded from a fishing boat in Rockland, Maine. New England fishermen are catching staggering amounts of herring, signaling the rebounding of a fishery that collapsed in the early 2000s. But some conservationists and rival fishermen say the fishery, which is important for both food and bait for tuna and lobsters, is wiping out other fisheries with its massive pelagic trawlers. (AP Photo/Robert F. Bukaty
With cod gone, herring catches have boomed.(AP Photo/Robert F. Bukaty)

There are close to four million traps in Maine waters, says Steneck—each one packed with about a pound of bait per day. “Most of the lobsters that go into traps are undersized and can’t be harvested,” he says. “They get a free meal.”

 “Most of the lobsters that go into traps can’t be harvested. They get a free meal.” 

All those free meals boost the population—and the industry. GMRI researchers calculated that during trapping season, herring accounts for between a third and half of lobsters’ diets. Those in areas with traps grow 16% faster than lobsters in areas without, according to their research. This extra heft also adds around $40 million a year to the value of Maine’s lobster haul.

The success of this domestication process perpetuates itself. As other fisheries founder, both Maine’s fishermen and the state’s economy have grown increasingly reliant on its swollen lobster haul. The lobster fishery’s total economic impact on the state economy was $1.7 billion, as of 2012—nearly 4% of Maine’s GDP that year.

However, twilight may already falling on Maine’s two-decade crustacean heyday. Though the contents of this season’s lobster traps signal nothing but bounty, scientists are uncovering grim omens from under the rocks below.

Bad news from the baby lobster census

The first comes from Rick Wahle’s annual survey of baby lobster settlement. Using scuba divers and, in deeper water, retrievable boxes that simulate cobble, he and his team have counted baby lobsters at more than 100 sites in Maine, Massachusetts, Rhode Island, and Canada, a few for more than 25 years. As you’d expect, their findings suggest that wherever baby lobsters settle in big numbers, adults soon abound.

Wahle’s team surveys the Gulf of Maine’s cobble for baby lobsters.(Rick Wahle)

What about the obverse, though? We’re about to find out.

In the last few years, Wahle and his team have tracked what he calls a “widespread and deep downturn” in the number of settled baby lobsters. Though there have been decreases at certain sites before, the signals they’re picking up now are different.

“We’ve seen other downturns—they blink on and blink off. But we’ve never seen all of them blink on like that.”

The slump in babies started around 2011, which means “the next two years are going to be very telling because of that downturn in settlement,” says Wahle.

The case of the missing lobsters

DATE IMPORTED:August 25, 2013Lobsterman Steve Train tosses a lobster back into the sea while hauling traps in his boat "Wild Irish Rose" in the waters off Cape Elizabeth, Maine August 21, 2013. Lobster populations in Maine are booming like never before. The number of lobster processing plants in the state has more than tripled, from 5 in 2010 to 16 last year. Picture taken August 21, 2013. To match Feature USA-LOBSTER/REUTERS/Brian Snyder
(Reuters/Brian Snyder)

What’s strange is that, by all reckoning, Maine’s lobster population should be at an all-time high—which means baby lobsters ought to be too. There are also more breeders than ever before. The state’s lobsters are better fed, better protected, and—in the upper Gulf of Maine, at least—they and their babies enjoy more favorable sea temperatures than at any time in history.

 “We’ve seen other downturns—they blink on and blink off. But we’ve never seen all of them blink on like that.” 

“That we see such a dramatic decline in settlement here at a time when brood stock, the spawners, are at peak levels of abundance—there must be an environmental factor here,” says Wahle.

There are a couple of things that this could mean. One is what Steneck—he works closely with Wahle, a former student of his—calls the “deep water hypothesis.”

In the past, most larvae likely settled in the upper 60 feet or so of the coastal shelf, where waters were sufficiently warm. However, cobblestone and rocky ledges extend a ways offshore in places, perhaps 100 feet down. So as the water has gotten balmier, they’ve been able to make their homes farther offshore—in waters that used to be too cold for them—well beyond where Wahle and his team are looking for them. The kids, in other words, are alright.

In another scenario, they’re not, though. Steneck says that deeper water—where lobsters spend winter—seems to be warming faster even than shallow areas. If this means a females’ eggs mature and hatch while she is still far offshore, her babies could be carried out to sea by currents into waters too cold and deep for babies to survive.

 “The next two years are going to be very telling because of that downturn in settlement,” says Wahle. 

“The first scenario, if true, would be very positive, the second one very negative—it would mean we’re going to see a significant downturn [in landings],” says Steneck. “I just don’t think we have a clue which one of those is correct.”

On the bright side, the first scenario jibes with reports from fishermen who’ve been hauling up baby lobsters and juvenile lobsters in unusually deep waters, suggesting that babies are successfully settling there. But new research on female lobster fecundity could tip the scale in favor of the much grimmer outlook.

Trouble with Grand Manan’s big mamas

The findings raise the possibility of another culprit entirely: Female lobsters are suddenly producing fewer eggs. This seems unlikely given the prime baby-making conditions created by the warming seas. However, recent research (paywall) led by Heather Koopman, biologist at the University of North Carolina, suggests this might be happening—and ocean warming is probably why.

This August 2009 picture shows a female lobster laden with eggs before being released back into the ocean off Long Island near Harpswell, Maine. The Maine Department of Marine Resources announced Monday, March 1, 2010 that Maine lobstermen had a record harvest in 2009, but the value of the catch continued to plunge amid the sour global economy. Lobstermen caught 75.6 million pounds last year, up 8 percent from 2008, but the value of the catch fell $23 million, to $221.7 million. (AP Photo/Pat Wellenbach
An egg-bearing female lobster caught in Harpswell, Maine.(AP Photo/Pat Wellenbach)

To analyze lobster fecundity, Koopman and her team tagged along with lobstermen working the waters near Grand Manan Island, in Nova Scotia’s Bay of Fundy. Home to some of the biggest female lobsters ever recorded, the island is also a spawning hotspot for the whole region, an important source of current-carried larval emigres far down Maine’s coast. Before tossing back each “egger” that the lobstermen hauled up, Koopman and her team counted her eggs (or took digital pictures so they could tally them later). Over five years, they sampled some 1,370 lobsters, building one of the biggest collections of data on lobster reproduction ever amassed.

The results were disconcerting. From 2008 to 2013, the average number of eggs they counted on a lobster’s underside declined by 30%—a drop of around 8-10% a year.

Canadian bakin’?

DATE IMPORTED:August 25, 2013A lobster sits in a holding bin before having its claws banded by sternman Rob Tetrault II (rear) onboard the lobster boat "Wild Irish Rose" in the waters off Cape Elizabeth, Maine August 21, 2013. Lobster populations in Maine are booming like never before. The number of lobster processing plants in the state has more than tripled, from 5 in 2010 to 16 last year. Picture taken August 21, 2013. To match Feature USA-LOBSTER/ REUTERS/Brian Snyder
A lobster caught off Cape Elizabeth, Maine.(Reuters/Brian Snyder)

What might explain this alarming drop in fecundity? Stress from handling, pollution, disease, and lack of oxygen could in theory be factors.

However, the most likely cause, hypothesized Koopman and her team, is the rapid rise in water temperatures. While some warming is obviously favorable to lobster populations, too much is dangerous. A female lobster’s ovaries mature when temperatures drop somewhere below the 41°F to 46.4°F range. During the five years of the study, water temperatures never fell below 41°F, and only a few times below 46.4°F. If Koopman and her teams’ hypothesis is right, it also doesn’t bode well for egg production further south, in waters already much warmer in winter than the Bay of Fundy.

Another possible factor behind the Grand Manan Island fecundity decline could be that there simply aren’t enough big male lobsters left to go around. Female lobsters generally prefer mating with bigger males. That’s not as easy as it used to be though, explains Tracy Pugh, a Massachusetts state fisheries biologist who specializes in lobster reproduction. The more rigorous protection of eggers (Maine’s conservation policies are the norm in Canada too) makes it highly likely that many more females than males will avoid harvest long enough to reach the 5-inch legal limit.

 While some warming is favorable to lobster populations, too much is dangerous.  

So what happens when females outnumber males, or exceed them in size? In labs, at least, mating doesn’t always work out so well. Guy lobsters that try to get it on with bigger females sometimes simply fail to get the job done. Others release too little sperm to fertilize all of the large female’s eggs. And when females outnumber their counterparts, males sometimes can’t keep up with the demand. However, Pugh emphasizes that lab results don’t always reflect what happens in the wild.

Still, whatever is behind it, the fecundity decline of Grand Manan’s big mamas could indeed explain why fewer babies are making it to Maine cobbles than they used to.

The coming collapse?

FILE - In this July 29, 2014 file photo, Brandon Demmons sends a lobster trap overboard at dawn off of Monhegan Island, more than 12 miles off the coast of Maine. A two-year shutdown of the Maine shrimp season is keeping many lobstermen at sea deeper into the winter than typical, a trend some say could result in lower prices at lobster pounds. Many Maine lobstermen use the shrimp season as a source of winter income while lobsters are in lower demand and harder to catch. (AP Photo/Robert F. Bukaty

These disquieting data might just be statistical noise—or they may foretell a reversal in the Gulf of Maine’s two-decade lobster boom. If any fishermen can weather such a downturn, it’s Maine’s lobstermen. Tempered by tradition, discipline, and the collective will of generations, their practices exemplify the long game of biological and economic sustainability that far too many other fisheries decline to play.

 “We’re talking about the entire maritime heritage of the coast of Maine.” 

As the Maine’s lobster industry’s improbable rise reveals, no single species exists in a vacuum. Unfortunately, conservation efforts don’t either. Two decades of lobster abundance isn’t thanks to human mastery of “sustainability.” The ecosystem extremes that seem likely to have produced it—how we’ve pulled apart the food web, heated up the sea, re-rigged the lobster population structure—are volatile. Inevitably, nature warps again.

If recent research is truly flashing a warning sign, that warping may already be underway. For most, that means that the local lobster roll food truck might switch back to selling kimchi tacos. But for a state whose identity is married to the iconic big-clawed crustacean, the stakes are much higher.

“We’re not talking about lobstermen having a bad decade,” says UMaine’s Steneck. “We’re talking about the entire maritime and coastal heritage of the coast of Maine.”

Lobster roll image by Yuri Long on Flickr, licensed under CC-BY-2.0 (image has been cropped). Juvenile lobster image by Rick Wahle via NOAA Photo Gallery on Flickr, licensed under CC-BY-2.0 (image has been cropped). Image of Maine cod fisherman by rich701 on Flickr, licensed under CC-BY-2.0 (image has been cropped).


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Drupal 8.0.0-rc1 released

Drupal 8 RC1

We now present the first release candidate for Drupal 8.0.0! Drupal 8 includes a tremendous number of new features and improvements for both users and developers.

We revamped Drupal’s user interface; added WYSIWYG and in-place editing; significantly improved mobile support; added and improved key contributed modules including Views, Date, and Entity Reference; introduced a new object-oriented backend leveraging Symfony components; revamped configuration management; improved multilingual support; and added hundreds of other improvements. Drupal 8.0.0-rc1 is the collective work of over 3,200 core contributors. Read more about what’s new in Drupal 8.0.x.

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Using Drupal 8 #

Launching new sites #

Drupal 8 itself is very functional straight out of the box — many of the top Drupal 7 modules are now included in core, and several features have been made more flexible to avoid the need to install many other modules. Evaluate your needs, and you may easily find that everything you need for a project is already included in Drupal 8 core. Check out our slides about Drupal 8 to learn about the changes.

Updating existing sites #

The new version also includes a revamped Migrate module to update existing Drupal 6 and 7 sites to Drupal 8 directly. The migration feature is currently marked “experimental,” meaning it is not yet fully supported and we are still working to improve it. For this reason, the Drupal 8 release candidate does not yet provide a user interface for migrations. Use the Migrate Plus and Migrate Upgrade modules to test migrations now, or read more about Migrate in core.

Contributed modules and themes #

There are a number of modules already ported to Drupal 8 as well as themes already being developed. We set up the contrib tracker project to make it easier to track the status of the ports of contributed modules.


DrupalCon Barcelona Drupal 8 sprint photo by Pedro Lozano (under the CC BY 2.0 license)

Porting modules and themes to Drupal 8 #

If you have not done so already, now is the time to ensure that your modules and themes will work with the new version. While there are many changes in Drupal 8, we wanted to make it as easy as possible to get started porting modules. We suggest you use Drupal Module Upgrader to run a first pass of code upgrades. Some things will be automatically upgraded while others will get a @todo comment or will be left untouched.

To help you learn and apply the new APIs, the api.drupal.org site has overviews and short examples of all major Drupal 8 APIs. The Drupal.org handbooks have in-depth guides with more background information on each API as well. We also have a complete list of all API changes to Drupal 8, spanning the 4.5 years of Drupal 8’s development.

Instead of using our own home-brewed templating system from Drupal 7 and earlier, Drupal 8 uses the Twig templating engine. Many of the concepts from previous versions of Drupal still apply with Twig. We are working on a guide for you to help update your themes. Also check out the Drupal 8 theming documentation for more information.

Be sure to file any core bugs that you may find while updating your module or theme.

Translating Drupal 8 #

The interface strings are officially frozen now. Only error corrections, removals or additions of whole strings, and fixes required for critical issues may be made to the interface text from this point forward. This is the best time to translate Drupal 8, so your translations will be available when the final version is released. The installer now comes with automated translation downloads, so whatever you translate now will be useful for all Drupal 8 installs. Localize.drupal.org has a summary page about core translation status in all the supported languages with a step-by-step guide in the sidebar to help you contribute.

Documentation, book, and video authors #

The user interfaces, interactions, and “look and feel” of Drupal 8.0.0 are now frozen and will only be changed if required for critical bug fixes. If you previously put your documentation, instruction video, or book project on hold, now is the time to pick it up again. Now is also the time to update documentation on Drupal.org and to get documentation fixes into Drupal 8, so the explanations are correct. Thanks for your contributions!

Be aware that Drupal 8 will employ semantic versioning, with new “minor” releases (backwards-compatible with API additions and new features) approximately every six months. So strings, user interfaces, and other visual aspects of Drupal will be improved throughout the entire Drupal 8 process, which may require subsequent updates to these materials.

Contributing to Drupal 8 core #

During the release candidate phase, only critical fixes and documentation improvements will be committed to Drupal 8 core (plus certain non-disruptive “rc target” changes at core committer discretion). Other issues that have been reviewed and tested by the community may remain uncommitted until after 8.0.0 to ensure that critical bugs can be fixed quickly without risking regressions. Read more about the allowed changes during the RC phase.

When will Drupal 8.0.0 be released? #

We will schedule an official release date for 8.0.0 when we are confident that the rate and nature of incoming critical bugs has slowed enough to ensure a stable release. Until then, release candidates of Drupal 8 will be released twice a month concurrently with the Drupal 6 and 7 release windows.

Known issues #

We are confident that our code is stable enough for wider testing by site owners, developers, and end users. There are however still known issues with Drupal 8.0.x, including major bugs. Help resolve these issues by testing Drupal 8 and searching for existing bug reports and adding more information to help resolve those bugs. If your suspected bug hasn’t been reported yet, submit a bug report.

There is a known issue with response cache headers sometimes exceeding hosting configuration limits that may cause some pages to not be viewable on some hosting providers. If you run into this, see that issue and its related issues for details.

Handling security issues #

Starting now, any security issues discovered for Drupal 8 should be kept confidential and reported using the Report a security vulnerability link on the Drupal project page in order to protect existing sites. Through December 31, 2015, the Drupal 8 security bounty is also still active, so you can get paid for finding security issues and reporting them in our private tracker! See the security team page for more information on Drupal security.

Talk about the release candidate! #

We suggest the #drupal8rc hashtag for Twitter, Facebook, etc. posts. To mention and find conversations about work already made with Drupal 8, use #madewithd8. We can’t wait to see what you make with Drupal 8!

Front page news: 
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Original URL: https://www.drupal.org/drupal-8.0.0-rc1

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Alphabet Now Owns abcdefghijklmnopqrstuvwxyz.com

Google Alphabet blocks Since it couldn’t buy ABC.com or Alphabet.com, Google Alphabet has acquired the next best thing. abcdefghijklmnopqrstuvwxyz.com Google announced the structural changes that led to Alphabet back in August, and it just became official. There’s nothing there right now, but Google sure does own it (the record was updated on 10/7/15): According to the completely worthless and… Read More


Original URL: http://feedproxy.google.com/~r/Techcrunch/~3/SzLcsSgLM3k/

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Linux kernel development suffering from the “internet of hate”

Another Linux kernel developer has left, citing a toxic environment. Jack Wallen proposes the type of motivation used by the kernel devs could unmake a very precious commodity.


Original URL: http://techrepublic.com.feedsportal.com/c/35463/f/670841/s/4a8371d3/sc/31/l/0L0Stechrepublic0N0Carticle0Clinux0Ekernel0Edevelopment0Esuffering0Efrom0Ethe0Einternet0Eof0Ehate0C0Tftag0FRSS56d97e7/story01.htm

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MIT Master’s Program To Use MOOCs As ‘Admissions Test’

jyosim writes: In what could usher a new way of doing college admissions at elite colleges, MIT is experimenting with weighing MOOC performance as proof that students should be accepted to on-campus programs. The idea is to fix the “inexact science” of sorting through candidates from all over the world. And it gives students a better sense of what they’re getting into: “When you buy a car, you take a test drive. Wouldn’t it be a great value for prospective students to take a test course before they apply?” said one academic blogger.


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Original URL: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/tR40iqVG5ik/mit-masters-program-to-use-moocs-as-admissions-test

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Sony Cuts Price Of PlayStation 4 For The First Time To $349

PlayStation 4 After nearly two years, Sony is slashing the price of its latest gaming console by $50 just in time for the holidays. The PlayStation 4 now costs $349 in the U.S. In November. The console already received a price cut in Japan to 35,000 yen (approximately $290). European gamers should expect a price cut pretty soon as well. Read More


Original URL: http://feedproxy.google.com/~r/Techcrunch/~3/rYi3L1BWHYA/

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EC2 Instance Update – X1 (SAP HANA) & T2.Nano (Websites)

AWS customers love to share their plans and their infrastructure needs with us. We, in turn, love to listen and to do our best to meet those needs. A look at the EC2 instance history should tell you a lot about our ability to listen to our customers and to respond with an increasingly broad range of instances (check out the EC2 Instance History for a detailed look).

Lately, we have been hearing two types of requests, both driven by some important industry trends:

  • On the high end, many of our enterprise customers are clamoring for instances that have very large amounts of memory. They want to run SAP HANA and other in-memory databases, generate analytics in real time, process giant graphs using Neo4j or Titan , or create enormous caches.
  • On the low end, other customers need a little bit of processing power to host dynamic websites that usually get very modest amounts of traffic,  or to run their microservices or monitoring systems.

In order to meet both of these needs, we are planning to launch two new EC2 instances in the coming months. The upcoming X1 instances will have loads of memory; the t2.nano will provide that little bit of processing power, along with bursting capabilities similar to those of its larger siblings.

X1 – Tons of Memory
X1 instances will feature up to 2 TB of memory, a full order of magnitude larger than the current generation of high-memory instances. These instances are designed for demanding enterprise workloads including production installations of SAP HANA, Microsoft SQL Server, Apache Spark, and Presto.

The X1 instances will be powered by up to four Intel® Xeon® E7 processors. The processors have high memory bandwidth and large L3 caches, both designed to support high-performance, memory-bound applications. With over 100 vCPUs, these instances will be able to handle highly concurrent workloads with ease.

We expect to have the X1 available in the first half of 2016. I’ll share pricing and other details at launch time.

T2.Nano – A Little (Burstable) Processing Power
The T2 instances provide a baseline level of processing power, along with the ability to save up unused cycles (“CPU Credits”) and use them when the need arises (read about New Low Cost EC2 Instances with Burstable Performance to learn more). We launched the t2.micro, t2.small, and t2.medium a little over a year ago. The burstable model has proven to be extremely popular with our customers. It turns out that most of them never actually consume all of their CPU Credits and are able to run at full core performance. We extended this model with the introduction of t2.large just a few months ago.

The next step is to go in the other direction. Later this year we will introduce the t2.nano instance.  You’ll get 1 vCPU and 512 MB of memory, and the ability run at full core performance for over an hour on a full credit balance. Each newly launched t2.nano starts out with sufficient CPU Credits to allow you to get started as quickly as possible.

Due to the burstable performance, these instances are going to be a great fit for websites that usually get modest amounts of traffic. During those quiet times, CPU Credits will accumulate, providing a reserve that can be drawn upon when traffic surges.

Again, I’ll share more info as we get closer to the launch!

Jeff;


Original URL: http://feedproxy.google.com/~r/AmazonWebServicesBlog/~3/cggiUXn-K4k/

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