I was reading through the Draft
Addendum IV to Amendment 6 to the Atlantic Striped Bass Interstate Fishery
Management Plan when a somewhat strange passage caught my eye.
It came in Section 2.2.3 of the Draft Addendum, which is
entitled “Ecosystem Considerations,” and it said
“When fishery management changes are being contemplated, food
web relationships should be considered…Striped bass are predators of other
Commission managed species, including weakfish and shad and river herring. As the striped bass population grows the
demand on prey species also increases.
The increased demand on prey species may have impacts on those species
undergoing rebuilding plans. The current
addendum’s goal of reducing fishing mortality to target levels may impact
predation on other ASMFC-managed species.”
I don’t have any problems with the premise that striped bass
eat fish—that’s certainly true—but I do have concerns about the overall tone of
the section.
Because the best that I can tell, fish have been eating
other fish since the Ordovician Period, about 450 million years ago; at least
that’s when the first remains of presumably jawed and piscivorous sharks appear
in the fossil record.
Bony fish (as
opposed to the cartilaginous sharks) started eating other fish about ten
million years later, when the long-extinct Acanthodians appeared on the scene
in the early Silurian.
In his book Discovering
Fossil Fishes, Dr. John G. Maisey of the American Museum of Natural History
noted that
“The developmental and anatomical complexity attained by
gnathostomes [i.e., jawed animals] has been relatively stable at least since
the Silurian. We can view the rise of
the gnathostomes as a second punctuated event, followed by more than 400
million years of relative stasis.
“It is quite remarkable that the basic diversity of jawed
craniates became fixed so early in their evolution. Sharks, ray-finned fishes and lobe-finned
fishes all appeared about 400 million years ago and have survived to the
present day. Conservatism of design is
striking…”
In other words, fish have been eating each other on a regular
basis for a very long time. Yet somehow,
they survived—in fact, thrived and radiated out into an ever-changing plethora
of species—for hundreds of millions of years, even though for all but a tiniest
fraction of that time, predators existed at far higher levels than they did
today—at 100% of their spawning potential, the level of an unfished stock.
There were no people around to control predators’ “demand on
prey species.” And there was no worry
about predators affecting stock rebuilding plans, because with no people around
to overfish forage fish stocks, there were no such plans and no need for rebuilding
in the first place.
So let’s put the blame where the blame belongs, and stop
blaming striped bass—or any other species—for fisheries problems.
If we’re talking about a lack of weakfish, let’s talk about
ASMFC’s refusal to accept scientific advice to put a moratorium in place to assist
in their rebuilding.
“The main discussion
was a moratorium is more than likely the best way to go at this time…”
and public comment supported such moratorium by a two-to-one
margin, ASMFC’s
Weakfish Management Board heard comments such as those of Tom Fote, the
current governor’s appointee from New Jersey, who said
“…I’m looking at a situation that doesn’t basically shut down
a complete fishery and basically allow the person, if he catches a weakfish of
a lifetime or something like that or the kid on a beach actually catches a
weakfish on that rare occasion, they can go home with one weakfish.
“…at least they’ll have, you know, one fish to take home…
“You know, we also talk about we’re supposed to build a
sustainable fishery for a sustainable industry.
If you start closing down both those industries, it takes a long time
for that industry to recover…”
and seemed to consider such argument reasonable. The Management Board rejected both the
Technical Committee’s comments and their endorsement by the public, and left
both the recreational and commercial fisheries open, although at much reduced
harvest levels.
They didn’t seem to consider the possibility that, if you
keep taking fish out of an already badly depleted weakfish stock, the stock
will take at least as long to recover as the fishing industry—which, in the
end, at least has many viable alternatives to harvesting weakfish.
Weakfish, on the other hand, have no alternatives if they get caught and die.
And now, a lot of the same folks who sat on that management
board apparently want to blame the striped bass for the weakfish’s problems…
In the case of American shad, Amendment 1 to the
Interstate Fishery Management Plan for Shad & River Herring noted, as
early as 1998, that
“Historically, American shad (Alosa sapidissima), hickory shad (Alosa mediocris), alewife (Alosa
pseudoharengus) and blueback herring (Alosa
aestivalis) (collectively termed alosines) were extremely important
resource species and supported very large commercial fisheries along the east
coast of both the United States and Canada…large declines in commercial
landings were perceived as an indication that management action would be
required to restore alosine stocks to their former levels of abundance…”
However, as is so often true with ASMFC plans, managers did not
take decisive steps to reduce harvest, and declines continued. ASMFC allowed many of the river-specific
stocks to decline so badly that, in
the case of shad in New York’s Hudson River, the latest stock assessment found
that
“Over the last 20 years, the Hudson River stock of American
shad has shown consistent signs of excessive mortality on mature fish…high
adult mortality was caused by fishing and that this excessive fishing has now
affected recruitment.
“…Results of this fishing pressure has left the stock in a
historically depressed condition with high uncertainty regarding its
recovery. Few year-classes currently
remain at high enough abundance to rebuild the spawning stock.”
Twelve years passed, while “high adult mortality caused by
fishing” continued to drive down the stocks in the Hudson and elsewhere, before
ASMFC finally decided to adopt more effective measures in 2010. Unfortunately, by then things had gotten so
bad that, at least in the Hudson, there is now “high uncertainty” regarding the
stock’s recovery.
Yet ASMFC has the temerity to suggest that striped bass are
to blame…
In the case of the alewife and blueback herring—the “river
herring” referred to in the shad and river herring management plan—ASMFC
decided merely to monitor the stocks—effectively, to just watch them decline—in
1989.
It took them two full decades, after
runs in many rivers had all but disappeared and the Natural Resources Defense
Council had filed an ultimately unsuccessful petition to have river herring
listed under the Endangered Species Act, to finally require states to take
regulatory action in Amendment
2 to the Interstate Management Plan for Shad and River Herring.
But, once again, ASMFC wants to blame striped bass for river
herring problems…
Yes, striped bass eat some weakfish, American shad and river
herring. They’re opportunistic feeders,
which means that they eat most of the species that ASMFC manages—and a lot that
it doesn’t—at some point in their travels along the coast. But they’ve been doing that for millenia
before Henry Hudson sailed up his eponymous river, where so many big stripers
still breed.
Yet there is no indication that the bass posed mortal threat
to weakfish, herring or shad before the first waves of colonists came over from
Europe and began to “save” such fish from striped bass (and to save other prey
from every other predator that, with a bit of work, could be converted into
food, funds or fertilizer).
Somehow, before Europeans arrived to catch the ravenous striped
bass (and everything else) with their nets, hooks and lines, “unprotected”
weakfish, shad and herring still managed to thrive. Before the otter trawl, haul seines, purse
seines, pound nets, gill nets, fykes and baited lines, striped bass, river
herring, weakfish and shad managed to live in a sort of harmony that allowed
them all to exist at or near 100% of their spawning potential (although the
oldest residents of the east coast, who walked there all the way here from
Siberia, did kill a few).
And it wasn’t because the striped bass had been vegetarians
before the white man arrived on this coast.
We are far more effective predators than the striped bass
could ever hope to be, and we compete with them for every forage species. Yet when forage declines, it’s always the
striper’s fault.
It’s not a pattern unique to striped bass. On every coast, we hear the same arguments.
In Chesapeake Bay, and down in North Carolina, the
talk is all about blue crabs being killed by red drum, with one fish
wholesaler saying
“If they don’t do something about this fish population and
restoration of this habitat, I don’t see where crabs are going to have a chance.”
Down in the Gulf of Mexico, you hear folks talking about red
snapper eating everything else on the reef.
Perhaps the best story came from a former executive director
of the Coastal Conservation Association’s Florida chapter, who related a story
about being at a shrimp bycatch hearing in Panama City when a woman wandered up
to the microphone and said
“You all are trying to stop bycatch, but I’ll tell you that bycatch
is good. Back in the old days, we didn’t
worry about bycatch. We caught jacks and
mackerel and things, and there was plenty of mullet and bait and everything was
fine. But now you’re stopping the
bycatch, and the fish are eating everything so that there’s no bait around, and
the pelicans are starving.
“And that’s why you’ll see the pelicans flying around and
eating stray cats on the street in Panama City!”
It’s no less credible than the other tales, which are all
aimed at convincing regulators to let fishermen do nature a “favor” and help drive
down populations of striped bass, red drum or whatever the species in question
might be, so that they can be as depleted as their forage and “balance” can be
restored.
Of course, cutting back harvest and restoring the forage
base is never a viable option…
That sort of thinking
is probably understandable when it comes from folks looking out for their
wallets.
But when it comes from folks who are supposed to be looking
out for our fisheries, it’s just not excusable.