Fish Need Time to
Recover -- An ENN Commentary
January 11, 2006 — By Dr. David Suzuki, David Suzuki Foundation
Recently, I wrote about a sea change I feel I've seen in our
understanding of humanity's relationship to the environment. I said I
thought society might have turned a corner. That we're beginning to
understand how critical our relationship is to the natural world because
we are a part of that world and very much dependent on its resources.
Perhaps I spoke too soon.
Just before Christmas, the European Union Fisheries Council caved in to
pressure to continue to allow a sizeable cod fishery in Europe's North
Atlantic. The fisheries ministers made their decision in spite of a
recommendation from scientists with the International Council for the
Exploration of the Seas to ban all cod fishing in the North Sea so
stocks can recover.
Scientists say cod stocks are so low only a complete ban will save them.
Reduced fishing quotas have not been effective and fish numbers are at
levels less than one third the size necessary to keep the species
healthy and provide a small buffer against others pressures, such as
warming ocean waters. It was the fourth year in a row that scientists
had recommended a ban. And the forth year in a row they were ignored.
Commercial fishing is now so efficient that it may only take a few years
of exploiting a particular stock for levels to plummet. According to a
new study published in the journal Nature, for example, five species of
deepwater fish found in Canadian waters are now critically endangered,
even though they were not even fished until the late 1970s. In fact, it
took only between five and 15 years for the fish to lose up to 98 per
cent of their initial abundance.
The deepwater fish studied, including the roundnose grenadier, the blue
hake, the spiny eel and the spinytail skate are long lived, but slow to
reproduce. As a result, they are especially vulnerable to overfishing.
Some, like the spinytail skate, have never even been targeted by a
commercial fishery. Rather, they were taken as bycatch while fishermen
sought other species. And yet they were still decimated.
Clearly there is a tremendous gap between the way scientists say
fisheries should be managed and how fisheries are actually being
managed. Yet studies have shown that good management pays off in the
long term. One study, reported last week in the journal Science,
revealed marine reserves in the Caribbean (areas where fishing is
prohibited) were actually more successful than anticipated at allowing
ecosystems to recover. Fish stocks can indeed rebound if poor practices
are caught in time and stocks are protected with sound management.
Coastal communities that rely on fishing are understandably concerned
about reduced fishing quotas and fishing bans. But if the choice is
between a few more years of poor fishing seasons leading to the total
loss of the resource, or a temporary ban that gives stocks time to
recover, the choice should be fairly clear.
Canada made the wrong choice with our cod stocks. Once plentiful, these
fish provided Canadians with a vital source of protein and thousands of
jobs. Today, stocks are decimated and show no signs of recovery, in
spite of a moratorium on fishing cod since 1992.
Canada failed to listen to warnings that the cod were in trouble.
Instead, we put on our blinkers, continued to fish, and hoped for the
best. But wishful thinking does not make for good fisheries management.
We must hope our European friends learn that lesson before it is too
late.
Join the Nature Challenge and learn more at
www.davidsuzuki.org.
Source: David Suzuki Foundation
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