BARBARY COAST DIVERS

NEWS AND EVENTS

p2

November 8-9th Sat/Sun Little House, Mendocino (send Carol $20 to reserve your spot)

Dining Out?

This is an announcement from the Seafood Watch Program at the Monterey
Bay Aquarium. They have recently updated the West Coast pocket guide for
Fall/Winter 2003. To download the latest version or order more pocket
guides please visit their web site: www.montereybayaquarium.org.

This Fall the Seafood Watch Program is launching a Hawaii pocket guide.
To preview the new species covered please visit the Seafood InfoCenter
database http://www.seafoodinfocenter.org/search.html. Here you will find report summaries and links to primary resources used in drafting the reports.

This winter Seafood Watch will be working on a National pocket guide and
beginning on a Southeast pocket guide to come out in the Spring. You can
order these in advance by contacting them through the web site or seafoodwatch@mbayaq.org.

The following changes were made to the West Coast pocket guide for
Fall/Winter 2003:

Squid: California market squid moved from the "Best Choices" column to the
"Caution" column. Populations of California market squid appear to be
stable however, no formal stock assessment has been done to determine
their distribution and abundance with certainty. In addition, although a
formal management plan has been written, it has not been yet been implemented.

Snow Crab: Snow crab from Canada was identified as a "Best Choice" because Canadian managers have implemented very progressive conservation measures and the
stocks appear to be stable. Although a decline was evident in 2003,
stocks are not considered overfished. Although management measures are
strong in Alaska, snow crab stocks experienced steep declines in 1999
and are still considered overfished keeping US Snow Crab in the
"Caution" column.

Rockfish: Rockfish from Alaska and British Columbia were distinguished from other
rockfish as being in the "Caution" instead of "Avoid" category .
Rockfish from AK and BC are generally caught using hook-and-line or
bottom longline. These methods have little impact to the sea floor and
very low bycatch. Although these species have life history
characteristics that make them vulnerable to fishing pressure, their
populations in both regions are stable and well-managed.

Shrimp: Shrimp from the U.S. that are wild-caught or farmed remain in the
"Caution" column, however the wording has been changed to specify gear
type because the majority of wild-caught shrimp is trawl-caught, not to
be confused with trap-caught shrimp, which is a "Best Choice".

The Seafood Watch Pocket Guide is your tool for making environmentally
responsible seafood choices at your favorite restaurant or grocery
store. The pocket guide recommends which seafood to buy or avoid,
helping consumers become advocates for sustainable fisheries and aquaculture.

The Seafood Watch West Coast pocket guide is updated twice per year,
once in the spring and again in the fall to ensure that the information
is as up-to-date as possible.

Here's what about to happen with Abalone:

The first in a series of special Fish and Game Commission (Commission) meetings to review and receive public input on the draft Abalone Recovery and Management Plan (ARMP) has been set for Wednesday, October 22, 2003 from 6-9 p.m. at the Monterey Department of Fish and Game office at 20 Lower Ragsdale Drive. Once completed, the ARMP will provide guidelines for the recovery and management of seven species of California abalone. The plan aims to recover depleted species in central and southern California, while continuing to closely manage the sport fishery for red abalone in northern California. For more information on the ARMP and future special Commission, contact Ian Taniguchi, marine biologist, at (562) 342-7182, or check the Marine Region Web site at www.dfg.ca.gov/mrd/

Effective 8 October 2003 the season will be closed for Cabezon, Greenlings and Sheephead. Rock fish will be closed within a few weeks but no definate date yet. No word on Lingcod yet.

Very Cold and Very Lonely

LONDON -- Lloyd Scott completed his underwater version of the Loch Ness Marathon. It took him 12 days walking on the bottom of Scotland's Loch Ness to reach the endpoint and surface to land. Simply put, Scott described the experience as "very cold and very lonely." It might have been a little less lonely if he'd run into the Loch Ness Monster. But he says there were no monsters in sight. Fifteen km into his trek through the waters of Loch Ness clad in an antique dive suit, Scott lost touch with his guide rope and fell 15 feet down a 300 foot sheer drop. The fall hurt his shoulder.The dedicated fundraiser brushed off the incident as minor and got back in the Loch yesterday. "It was incredibly silty and I had zero visibility. I had to drop down on my hands and knees to find the line and I just went over a ledge," Scott told reporters on the scene. The zero visibility has taken away the chance of spotting the famed monster of the Loch. Scott's team reported that the only thing Scott has seen is one fish. Lloyd Scott walked 26 miles wearing a 1940s diving suit, complete with a 40-pound metal helmet. He finished the underwater marathon Thursday. The former firefighter and professional soccer player did it to raise money for children with leukemia. For decades, people have reported seeing a sea monster in Loch Ness -- but the existence of such a creature has never been proved.

Military sonar may give whales the bends

Sonar may be killing whales and dolphins around the world. They say military sonar is driving the ocean mammals to the surface too quickly. The result is a fatal case of what divers call the bends. Scientists have suspected for years that whale strandings and deaths are connected with the use of naval sonar. But they haven't been able to establish why, until now. The team of British and Spanish researchers studied beaked whales that had become stranded four hours after sonar was used as part of an anti-submarine drill. They found gas bubbles in the internal organs of 14 whales that beached themselves near a naval exercise in the Canary Islands. The bubbles are similar to those found in scuba divers who surface too quickly and get decompression sickness. Some of the whales' blood vessels had even exploded. Decompression sickness, called the bends, occurs when nitrogen gas that has dissolved in the blood of divers under pressure expands rapidly, forming bubbles that clot or damage vessels. In humans, decompression sickness causes dizziness and chest pain; untreated, it can cause paralysis or death. The alternative explanation, the researchers argue, is that sonar actually causes gas bubbles to form. There is also a theory that loud noises might cause gas bubbles to form in deep-diving marine mammals. Low-frequency sonar generates sound loud enough to cause permanent hearing damage in humans as far 160 kilometres away. Signs of severe damage to the eyes and ears have been found in whales that died during past sonar exercises. The findings are published in this week's edition of the journal Nature.

409 million year tale of sea's oldest predator

JOHN INNES

A FOSSIL shark has been dated at 409 million years old - the most ancient of the ocean predators yet found, it was revealed yesterday. The specimen, discovered in rocks in New Brunswick, Canada, sheds light on a period of shark evolution which is little understood. Scientists said the shark belonged to the species Doliodus problematicus, previous examples of which could only be identified by their teeth. Unlike those specimens, the new fossil includes the head and part of the front of the body. It has two rows of teeth, and paired pectoral fin spines, which are normally associated with bony fishes. Such a feature has never before been seen in chondrichthyans, which include sharks, skates and rays with cartilaginous skeletons. The fossil is 15 million to 20 million years older than the previous "oldest" shark, an Antarctic and Australian species known as Antarctilamna prisca. Randal Miller, from the New Brunswick museum in St John and colleagues described the find in the journal Nature. "This species is the oldest shark showing the tooth families in situ," they wrote.

Appeals Court Rules Against Long-Line Fishing
Long-line fishing boats may no longer operate off the California Coast after a federal appeals court has ruled that the National Marine Fisheries Service violated the Endangered Species Act by allowing long-line fishing. These boats use monofilament lines up to 30 miles long that carry thousands of hooks and inadvertently snare critically endangered leather back turtles as well as other kinds of sea turtles and birds.

 

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updated 10/15/03