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Age and Growth of Atlantic Croakers in the Northern Gulf of Mexico, Based on Otolith Sections
Author(s) -
Barger Lyman E.
Publication year - 1985
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1985)114<847:aagoac>2.0.co;2
Subject(s) - otolith , biology , fishery , significant difference , body weight , zoology , fish <actinopterygii> , mathematics , endocrinology , statistics
Otoliths from 1,291 Atlantic croakers Micropogonias undulatus, with total lengths from 113 mm to 417 mm, from the northern Gulf of Mexico were examined to determine age and growth. Marginal increment analysis was used to determine that otolith marks formed annually. Ages ranged from 0 to 8 years. No significant difference was found for length at age between males and females. The von Bertalanffy equation was L t = 419.2[1 ‐ e −0.273(t+1.405) ], where L t = total length (mm) and t = age (years). The length‐weight relationship (r = 0.99) was W = 5.302 × 10 −6 TL 3.134 where W = weight (g) and TL = total length (mm).