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22 March 2006

Seamounts, supermarkets, supertrawlers, sharks and the sex lives of fish

by Dave, onboard the Esperanza

News, news news. As we've been sailing the seas, lots of interesting ocean-related news stories have been popping up. Got any of your own? Post them as a comment!

Here's one, for a start - researchers exploring the Davidson Seamount, the peak of which 1300m below the Pacific, and 160km off the coast of California, have found a a 'forest' teeming with animal life, which exists in total darkness and near freezing temperatures.


MBARI: Exploring Ancient Gardens »
Davidson Seamount: Exploring Ancient Coral Gardens »
Seamount life dazzles researchers »

Supermarkets & Supertrawlers
"The fish will be grazing on plankton when a supertrawler looms up in the dark. First, the thud of the propellers will be audible, then the engines, then the sonar rays, before the vast trawling nets close in. For some fish, capture in the mesh means an excruciating death: mackerel, for example, drown as they stop swimming when confined."
The Independent: How to buy fish with a clear conscience »
Related: UK Supermarkets: What Not to Buy (useful for all countries!)

New Shark
"It may have been seen thousands of times by fishermen, but this new species of shark was officially discovered by scientists only recently in Mexico's Gulf of California. The shark was found in a deep-sea fishing catch in 2003, making it the first new shark species to be identified in the gulf in over 30 years. The discovery was announced in the journal Copeia in December. The species, known as Mustelus hacat, grows up to three and a quarter feet (one meter) long and lives at depths of more than 650 feet (200 meters)."
National Geographic: New Shark Species Discovered in Mexico

Sex Lives
" For centuries scientists have thought of deep-sea pelagic fish as nomadic wanderers, in part because information about them was so limited. However, new results from the ongoing Mid-Atlantic Ridge Ecosystems program (MAR-ECO), a Sloan Foundation-sponsored component of the Census of Marine Life, have revealed that these fishes may in fact be gathering at features such as ridges or seamounts to spawn."
Deep-Spied Fish: Atlantic Expeditions Uncover Secret Sex Life of Deep-Sea Nomads

- Dave

   

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Comments

This is a really interesting website - new developments, profiles of marine species, etc.

http://marinebio.org/MarineBio/News/letters/Spring2006.asp

Posted by: echo at March 22, 2006 9:32 PM

Warbling Whales Speak a Language All Their Own
http://www.hhmi.org/news/suzuki20060321.html
or
http://snipurl.com/nxry

Posted by: echo at March 22, 2006 11:12 PM

Wow, excellent link. I think that will be going on my mp3 player...

Posted by: Dave - Webbie on the Esperanza at March 23, 2006 10:04 AM

We, on the west coast of Canada are reeling from the accidental sinking of the ferry, Queen of the North, off Gil Island in Wright Sound. Horrified to watch the growing oil slick and very concerned about the abundant wildlife in the area. This was very close to the spot where two greenpeace volunteers where almost drowned when their zodiac was overrun by the Princess Patricia in 1979. They were protesting the building of an oil port at Kitimat. Men from Hartley Bay rescued them, the same as they assisted the survivors of the ferry accident. We were told at that time that the Inside Passage had been travelled for so many years and was so well charted that an accident like this would NEVER happen....this proves they were wrong. Unfortunately once again there is talk of building this oil port. Here is the URL for a blog for cetacealab....an observation lab that monitors the whales and wildlife in the area. www.cetacealab.org/blog/journal.php?action=expand&id=83

Having lived in Kitimat for many years and knowing the area well, I hope and pray we never see oil tankers going through the Inside Passage....an accident waiting to happen.

Posted by: Kathryn at March 25, 2006 3:49 PM

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