Reproduction, movements, and population dynamics of the southern kingfish, Menticirrhus americanus, in the northwestern Gulf of Mexico

Harding, Stephen M. and Chittenden, Jr., Mark M. (1987) Reproduction, movements, and population dynamics of the southern kingfish, Menticirrhus americanus, in the northwestern Gulf of Mexico. NOAA/National Marine Fisheries Service, (NOAA Technical Report NMFS, 49)

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Abstract

Menlicirrhus americanus in the northwestern Gulf of Mexico mature at 150-220 mm TL and 12-14 months of age, with males maturing when 10-40 mm smaller than females. Spawning occurs within a broad period from February through November with two discrete peaks which coincide with the periodicity of downcoast alongshore currents (towards Mexico) in spring and fall. This species occurs at depths of less than 5 to 27 m, being most abundant at 5 m or shallower. Young-of-the-year recruit primarily at 5-9 m or shallower and gradually expand their bathymetric range. Age determination by length frequency is feasible in M. americanus but not as simple as in species that spawn in one major period of the year. Only one or two spawned groups normally predominated at anyone time and no more than three co-occurred with few possible exceptions. Observed mean sizes were 138 mm TL at 6 months, and 192 and 272 mm at ages I and II, respectively. Typical maximum size was 296-308 mm and typical maximum age is probably 2-3 years. The largest fISh captured were 392 and 455 mm. Observed sex ratio was 1.2 females to 1 male. Weight, girth, and length-length regressions are presented.(PDF file contains 27 pages.)

Item Type: Monograph or Serial Issue
Title: Reproduction, movements, and population dynamics of the southern kingfish, Menticirrhus americanus, in the northwestern Gulf of Mexico
Personal Creator/Author:
CreatorsEmail
Harding, Stephen M.
Chittenden, Jr., Mark M.
Series Name: NOAA Technical Report NMFS
Number: 49
Date: 1987
Publisher: NOAA/National Marine Fisheries Service
Issuing Agency: United States National Marine Fisheries Service
Subjects: Ecology
Fisheries
Biology
Item ID: 2773
Depositing User: Patti M. Marraro
Date Deposited: 10 Nov 2009 12:30
Last Modified: 29 Sep 2011 18:27
URI: http://aquaticcommons.org/id/eprint/2773

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