By: Trimmel Gomes
Preliminary research shows less fresh water and
higher sea levels could be changing the forage fish in Florida's famed
Apalachicola Bay and the fisheries that depend on them.
University of Central
Florida biology graduate student Kira Allen won a $15,000
fellowship from the Florida Fish and Wildlife Conservation Commission to
research food web models.
Allen looked at how drought and reduced river flow affects prey fish, such as
anchovies, pinfish and menhaden. She said the study also simulates the
potential future impacts on predator species - like speckled sea trout and
Spanish mackerel.
"The freshwater reduction and sea level rise result in a pretty big
increase in salinity in the bay," said Allen. "And a lot of the fish
that live in the bay prefer the lower salinities, we're seeing pretty heavy
predictive declines in their population."
Allen said she hopes her findings will spark a new food web model for the
Apalachicola Bay Estuary that could address environmental impacts on individual
forage fish species.
Florida's fisheries managers face many challenges keeping estuaries healthy to
support recreational and commercial fishing, as well as ecotourism.
The Forage Fish Research
program is supported by a coalition that includes The Pew
Charitable Trusts. Justin Grubich, a fisheries scientist with Pew, said the
partner organizations came together about six years ago to help improve
ecosystem approaches in state fisheries management.
"The idea was to look at how we can advance sort of ecosystem-based
approaches to our fisheries management," said Grubich, "because we
know in Florida recreational fisheries are a $12 billion industry. "
Grubich said after realizing they could tap a treasure trove of graduate
students to advance the research, the coalition - including the International
Game Fish Association - has been awarding fellowships to help inform future
fisheries management.
Support for this reporting was provided by The Pew Charitable Trusts.
Content for this Post is provided by Florida News
Connection, a Bureau of Public News Service.
Public News Service is a member of the The Trust Project.
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