North Sea cod and herring under threat

Jun 26, 2006

European scientists say cod and herring populations in the North Sea are not reproducing enough, jeopardizing the Norwegian fishing industry.

Researchers in Norway, England and the Netherlands are trying to determine why at least 15 types of fish have moved farther north to colder water, Aftenposten reported Monday, noting some fish not usually seen in the North Sea, such as the swordfish, have been observed.

The North Sea's average temperature has risen by as much as a full degree during the last 10 years and that might have affected the cod and herring, since both species prefer cold waters.

"There's little adult cod left in the North Sea," Geir Ottersen of the Institute of Marine Research in Bergen, told Aftenposten. "A main reason we believe is overfishing of large fish. With the herring, the adult population is solid, but there hasn't been much reproduction the past three years. We don't know why, but we're assembling all the facts and studying possible reasons for why this is so."

Copyright 2006 by United Press International

Explore further: Timing for spay and neuter depends on the individual pet and owner

add to favorites email to friend print save as pdf

Related Stories

New digs for the spadefoot toad

Nov 18, 2014

A plump Eastern spadefoot toad sits placidly in a patch of meadow on Cape Cod, Massachusetts. Nearby, researchers Rachel Jania and Bryan Windmiller are house hunting for it, trying to figure out if the meadow might make a ...

Exxon Valdez Runs Aground in 1989

Mar 24, 2014

Early on March 24, 1989, Dean Fosdick, the Alaska bureau chief of The Associated Press, was awakened around 5:30 a.m. by a phone call. The caller had a tip that a tanker had run aground outside Valdez.

Recommended for you

Myanmar tallies 1,114 bird species, 20 previously unrecorded

3 hours ago

An extensive survey of birds in Myanmar has revealed nearly two dozen not known to have existed in the country, including a large black seabird with a ballooning red neck sack and a tiny black and white falconet with a surprised, ...

Chimps with higher-ranking moms do better in fights

18 hours ago

For chimpanzees, just like humans, teasing, taunting and bullying are familiar parts of playground politics. An analysis of 12 years of observations of playground fights between young chimpanzees in East ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.