Florida Fishermen Catch 25-Foot-Long Giant Squid, Offering Rare Opportunity to Study Elusive Creature

By Alisa Opar

Giant squid are creatures of the deep ocean. So it was quite a surprise when recreational fishermen spotted one floating on the surface some 12 miles off of Florida’s Jensen Beach on Sunday. They hauled the 25-foot-long dying invertebrate on to their 23-foot-long boat. “I thought we definitely need to bring it in, because no one’s going to believe us if we don’t,” said Robert Benz, who was fishing with friends Joey Asaro and Paul Peroulakis. “I didn’t want to leave it out there and just let the sharks eat it.”

University of Florida researcher Roger Portell injects preservative into a 25-foot-long giant squid Monday night. Photo: Jeff Gage, University of Florida/Florida Museum of Natural History

On Monday scientists at the University of Florida’s Florida Museum of Natural History preserved the squid, which died shortly after it was found. John Slapcinsky, the museum’s malacology collection manager, explained that giant squid reproduce just once in their lifetime, and then often become lethargic and die slowly. That’s probably what happened to this animal, as it was discovered barely alive near the surface. The finding offers a rare opportunity to learn more about the elusive creatures, which can grow to be 60 feet long, top 1,000 pounds, and have pigment cells on their white-and-red skin that allow them to rapidly change color, presumably for communication or camouflage.

Read the rest here.

Fishery Landings by West Coast County, 2006-2010

Maps were created (view pdf) that present rankings by west coast counties according to the major “management groups” (grouping individual species codes) used in the PacFIN database in terms of ex-vessel revenue for the recent 5-year period, 2006-2010.

These management groups accord with the four Pacific Council fishery management plans (coastal pelagic species, groundfish, highly migratory species, and salmon) and four additional categories (crab, other, salmon, shellfish, and shrimp).

The data were obtained by a query grouping landings by county codes in the database. The PacFIN county codes were then matched to FIPS county codes for use in ArcGIS. (The PacFIN county table includes several codes that are not counties, e.g., “Columbia River below Bonneville Dam.”

In data preparation revenue for all these codes were grouped into a single record, which is not displayed in the figures or the table below.)

Counties were used as the geographic units for two reasons. First, counties are a useful geographic unit for producing choropleth maps. Second, grouping by county makes it easier to compare landings data to demographic data (available from the census or other sources) in future analyses.

Read the post at the Pacific Fishery Management Council’s site.

Biodiversity Loss in the Ocean: How Bad Is It? [research paper]

photo © 2009 gorfor | more info (via: Wylio)

Science 1 June 2007:
Vol. 316 no. 5829 pp. 1281-1284
DOI: 10.1126/science.316.5829.1281b

The Research Article Impacts of biodiversity loss on ocean ecosystem services By B. Worm et al. (3 Nov. 2006, p. 787) projects that 100 of seafood-producing species stocks will collapse by 2048.

The projection is inaccurate and overly pessimistic.

Worm et al. define collapse as occurring when the current year’s catch is <10 of the highest observed in a stock’s time series. However, fish catch is rarely an adequate proxy for fish abundance, particularly for rebuilding stocks under management. A variety of biological, economic, and social factors and management decisions determine catches; low catches may occur even when stocks are high (e.g., due to low fish prices or the effects of restrictive management practices), and vice versa.

The inadequacy of Worm et al.‘s abundance proxy is illustrated by the time series of data for Georges Bank haddock (Melanogrammus aeglefinus). The highest catch for haddock occurred in 1965 at 150,362 tons (1). This catch occurred during a period of intense domestic and international fishing (1).

In 2003, haddock catch was 12,576 tons, or 8 of the time series maximum. Under the Wormet al. definition, the stock would be categorized as collapsed in 2003. However, stock assessment data (1) estimate the total magnitude of the spawning biomass in 2003 to be 91 of that in 1965. Comparing the estimate of spawning stock biomass in 2003 to the level producing maximum sustainable yield (MSY), the stock was not even being overfished in 2003 (2).

Get the whole report here.

The End of Overfishing in America

A fisherman unloads a portion of his catch for the day at Pigeon Cove Whole Foods docks in Gloucester, Massachusetts. Eric Schwaab, the administrator of the National Marine Fisheries Service, announced this week that overfishing will end in U.S. waters. (AP/Lisa Poole)

 

By Michael Conathan | March 25, 2011

This feature is part of a new series from CAP dealing with fisheries management issues. The series will publish biweekly on Fridays. It is a joint column with Science Progress.

Eric Schwaab, the administrator of the National Marine Fisheries Service, or NMFS, stood before a crowd of fisheries experts on Monday at the Boston Seafood Show. Schwaab had made many forays to New England—home of some of the squeakiest wheels in our nation’s fishing industry—since taking over the job about a year ago. But this time was different. He came bearing a remarkable message: We are witnessing the end of overfishing in U.S. waters.

One of the biggest changes to fisheries law in the 2007 reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act was the imposition of strict annual catch limits, or ACLs, in fisheries experiencing overfishing beginning in 2010, and for all other fisheries in 2011, “at a level such that overfishing does not occur.” Schwaab said the 2010 target of putting ACLs in place for all overfished fisheries was achieved, and “We are on track to meet this year’s deadline of having [ACLs] in place, as required, for all 528 managed stocks and complexes comprising U.S. harvest.”

Schwaab went on to call this accomplishment an “enormous milestone.” Quite frankly, that is an even more enormous understatement.

The end of overfishing should be shouted from rooftops from New England to the Carolinas to the Gulf Coast to Alaska to the Pacific Island territories and back to NMFS’s Silver Spring, Maryland headquarters. This is the biggest national news story our fisheries have seen in years.

Read the rest of the story from America Progress.

Shifting spring: Arctic plankton blooming up to 50 days earlier now

By Brian Vastag
Washington Post Staff Writer

A light micrograph of plankton including water fleas (family Daphniidae) (Getty Images/oxford Scientific)

Climate researchers have long warned that the Arctic is particularly vulnerable to global warming. The dramatic shrinking of sea ice in areas circling the North Pole highlights those concerns.

A new report finds that the disappearing ice has apparently triggered another dramatic event – one that could disrupt the entire ecosystem of fish, shellfish, birds, and marine mammals that thrive in the harsh northern climate.

Each summer, an explosion of tiny ocean-dwelling plants and algae, called phytoplankton, anchors the Arctic food web.

But these vital annual blooms of phytoplankton are now peaking up to 50 days earlier than they did just 14 years ago, satellite data show.

“The ice is retreating earlier in the Arctic, and the phytoplankton blooms are also starting earlier,” said study leader Mati Kahru, an oceanographer at the Scripps Institution of Oceanography in San Diego.

Read the rest of the story here.

Dr. Ray Hilborn Discusses the State of World Fisheries, and more…[Video]

“Doomsday will come to fishes across the world’s oceans by 2048.”  That was the startling implication of findings published in 2006 by marine ecologist Boris Worm of Dalhousie University in Halifax, Canada, and several colleagues.

The projection, published in a paper in Science magazine, was about the relationship between biodiversity and ecosystem services in the oceans, and concluded that the world’s oceans were in bad shape, in part because of overfishing.

But many fisheries scientists were appalled.  In fact, one prominent critic was Dr. Ray Hilborn, a professor in the School of Aquatic and Fishery Sciences, University of Washington, specializing in natural resource management and conservation.

Trained in quantitative techniques for determining the abundance of fish stocks, Hilborn and others  questioned the methods used in Worm’s global assessment.  The conflict continued a charged and long-simmering debate between marine ecologists and fisheries scientists about the status of the world’s ocean ecosystems.

Yet, less than a year later, as recounted in a Science magazine article entitled “Détante in the Fisheries War,” Hilborn and Worm began meeting on neutral ground to hammer out their differences. Working under the auspices of the National Center for Ecological Analysis and Synthesis(NCEAS) in Santa Barbara, California, Hilborn and Worm brought together some 20 scientists from their respective disciplines as well as dozens of graduate students.

Initial results from this collaboration were published in the July 31, 2009 issue of Science magazine: Rebuilding Global Fisheries.

A new series of videos posted on WorldNews provides a video account of the highlights of this ground-breaking research.  Three videos feature Dr. Hilborn on the state of the world’s fisheries. Another video, including interviews with both Hilborn and Boris Worm, highlights findings in the Rebuilding Global Fisheries study, and yet another video presents Dr. Hilborn’s remarks at a Science Advisory Team meeting of the Marine Life Protection Act Initiative in southern California, critiquing the state’s rigid size and spacing guidelines governing marine protected area placement in the Golden State.

The first three videos are posted below:

Concept of ‘fishing down food webs’ shown to be a myth

By Ray Hilborn (originally published in Pacific Fishing magazine, Jan. 2011)

Ray Hilborn

Perhaps no image of the impact of fish has captured the public as much as “fishing down food webs.”

The idea is very simple: Fishing begins, quite naturally, on the largest, most valuable fish. Once those are gone, fishermen move down the food webs to smaller, less valuable fish, and so on until the oceans are empty.

As Daniel Pauly, the prime apostle of the concept, has often said, we will soon have nothing to eat but jellyfish and zooplankton soup. This neatly fits the “apocalyptic” narrative that is so beloved by some environmental activists, but like many of these narratives, it is wishful thinking.

Pauly’s original paper, published in 1998, showed that the average fish caught in the world was becoming smaller and ever lower on the food web. This has been one of the most influential papers in the history of fisheries science. The “food web index” has been adopted by the Convention on Biodiversity and other groups as the best indicator of the health of marine ecosystems.

Read the rest here.

Environmental Groups Concede Sea Otter Protections Deserve More Scientific Study

Peter Halmay diving

By Harry Liquornik and Peter Halmay

After a yearlong legal fight with two environmental groups, the federal government recently came to an agreement surrounding the future protection of the threatened California sea otter.

If you believe the rhetoric coming from the plaintiff groups, they scored a major victory.

According to their statements, the Otter Project and the Environmental Defense Center are now on the path to freeing the sea otters from government interference and allowing the animals to return to the waters off Southern California.

But that’s not really the whole story, or even the whole truth.

Instead of dealing with meaningful, yet difficult, water quality problems this ill-conceived lawsuit sought simplicity — allow sea otters to go find places to survive on their own.

Sadly, without even so much as demanding an update to the 2005 scientific research surrounding the sea otters’ habitat, and seemingly not allowing the government to comply with the Endangered Species Act, the lawsuit took aim at terminating a key element of the government’s sea otter recovery program.

What’s more, these groups also wanted to ignore the act’s requirements that demand a program for a listed threatened species — such as sea otters — must also avoid harming other listed species. In this case, two endangered native abalone species are a primary prey of the threatened sea otters and the abalone share the habitat that will likely be occupied by the sea otters if the management program is ultimately ended.

The program, which began in 1987, established a separate colony of sea otters at San Nicolas Island as an insurance policy to protect the species in the event of a major oil spill. The plan also set up a sea otter management zone to protect Southern California’s shellfish fisheries, which represent a critical part of the state’s marine ecosystem and are an important element of many coastal communities.

Despite what the lawsuit claimed, the program has been a success.

Currently, the San Nicolas Island colony boasts the healthiest sea otters in California; these animals are reproducing at double the rate of the mainland population. Conversely, the island success stands in stark contrast to the mainland population, where approximately 300 sea otters die each year.

It’s for these reasons that several groups who know that a comprehensive ecosystem-wide protection plan is much more effective than a species-by-species approach, intervened in the lawsuit. This coalition, headed by the California Sea Urchin Commission, understands that without a functional ecosystem management plan, all species are at risk, not just a single target species. And that’s why we must redouble our efforts to fulfill all the elements of the 1987 program.

Thankfully, the court-approved agreement forced the plaintiffs to ultimately agree with the Sea Urchin Commission and its partners on practically all points put forward — that updating the 2005 study was appropriate; all elements of a final decision should in fact depend on a new analysis; the U.S. Fish and Wildlife Service should consider impacts to other protected marine species; and it should also consider the negative impact that poor water quality is having on sea otters. So what did the plaintiffs get for their lawsuit efforts?

They got taxpayers to reimburse them $55,000 in legal fees for an agreement which they could have received with a written request and first-class stamp.

And what did the people of California get, besides an unnecessary bill? A chance for a comprehensive review of the translocation experiment and a chance to further develop a meaningful ecosystem-based management of the resources.

Harry Liquornik serves as chairman of the California Sea Urchin Commission and Peter Halmay is a former member of the Fish and Wildlife Service’s sea otter recovery implementation team. Both are commercial sea urchin divers.

Has Overfishing Ended? Top US Scientist Says Yes

Has overfishing ended? Top US scientist says yes, but fishermen say cost was too high

photo credit: Max Braun

For the first time in at least a century, U.S. fishermen won’t take too much of any species from the sea, one of the nation’s top fishery scientists says.

The projected end of overfishing comes during a turbulent fishing year that’s seen New England fishermen switch to a radically new management system. But scientist Steve Murawski said that for the first time in written fishing history, which goes back to 1900, “As far as we know, we’ve hit the right levels, which is a milestone.”

Read the rest of the story here.

Sardine count on Central Coast: Science, business mix

Money on the line for county fishermen in aerial photo project

By MIKE HORNICK, The Californian
October 2, 2010

Moss Landing-based fisherman Andy Russo is a skipper, not a scientist. But he’d swap a line and net for a test tube and white lab coat if it put more sardines in his next catch.

It just might.

Russo is helping scientists with a project that could help his bottom line.

Since August, the California Wetfish Producers Association, a nonprofit industry group, has been flying aerial photography missions on the Pacific coast from Canada to Mexico, capturing images of massive sardine schools below the water’s surface. Russo and other fishermen take occasional hauls from the schools to establish density and weight.

The fishing purse seiner Eileen approaches schools of sardines, which appear as black masses on this enhanced photo.

Read the rest of the story from the Salinas Californian here.