Document Type

Internship Report

Publication Date

Fall 2014

Abstract

An analysis of a comprehensive long-term (2008-2013) fisheries independent monitoring project on Centropristis striata (black sea bass) was conducted to characterize patterns and describe the seasonal changes in abundance and habitat distribution (vegetated or un-vegetated areas) within the Apalachicola, St. Andrews, and the Big Bend estuarine systems in the northeastern Gulf of Mexico coast of Florida. Results from generalized linear modeling, contingency analyses, and monthly length-frequency histogram distributions indicated that black sea bass in the Apalachicola Bay system exhibited an abundance that was significantly related to temperature, salinity, bottom vegetation, month and year variables. Black sea bass are more likely to be present during the months of May _ November (high recruitment months), with a peak between September _ November, and black sea bass were more likely to be present in vegetated than in un-vegetated sampling sites. Using fishery-dependent data by correlating length and age data from otolith examination can be used to back calculate age at length data, which will better define young of the year in all three estuarine systems. Those recruitment numbers will help stock assessment analysts, as well as help management efforts to determine harvestable surplus of the adult population.

Comments

Department: MBF

MPS Track: FMC

Location: Eastpoint, FL

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