URI Graduate School of Oceanography Biologist Explores
the Dynamics of the
East Coast Squid Population
Narragansett, R.I .-- December 14, 2000 -- Although the long-finned
inshore squid population is not at risk, there are indications that overfishing
is occurring. To preserve a healthy squid population, an effective fisheries
management plan, based on sound data, must be developed and implemented.
To that end, URI Graduate School of Oceanography (GSO) biologist William
Macy is studying the life history of the Loligo pealeii squid population
and providing data to federal agencies on its growth, maturation, and numbers.
His research is part of a recent $48,000 grant from the National Marine
Fisheries Service (NMFS).
Macy, a resident of North Kingstown, will study a large sample of the
long-finned inshore squid to determine how growth rates and ages vary with
season and latitude. This species of squid has an average life span of approximately
10 months and is usually captured at 5-6 months old.
The most recent NMFS Stock Assessment Review Committee (1999) determined
that the fishing mortality for the winter fishery of loligo squid
averaged 80% over the point at which the maximum sustainable yield can be
realized. In spite of that, the production model in place supports the potential
for rapid stock rebuilding.
Macy's study will be a collaborative effort with Dr. Steve Cadrin of
the NMFS in Woods Hole, Massachusetts. Once all the squid have been aged
and the data assessed, Macy will identify the major hatching periods and
regions to determine seasonal and geographic variations in the ages and
rates of maturation. The data will then be used to create and test various
Contact: Lisa Cugini, 874-6642, email@example.com