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Age, Growth and Mortality of the Common Snook, Centropomus undecimalis (Bloch), in Everglades National Park, Florida: Report T-683.

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Date Issued:
1982-12
Summary:
This study focused on the age, growth and mortality of snook, Centropomus undecimalis, collected from sportfishermen in ENP from May 1976 through December 1979. Three hundred twenty-five fish ranged in length from 284-940 mm FL and in weight from 0.7 - 11.6 kg. Mean lengths of fish were largest in spring and smallest in winter. There were no differences in mean length among areas of capture. Annulus formation occurred in spring (March-May). Ages of fish were mainly 4-5 year-olds. Recruitment to the fishery began at age 2 and was completed at age 6.
Title: Age, Growth and Mortality of the Common Snook, Centropomus undecimalis (Bloch), in Everglades National Park, Florida: Report T-683.
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Name(s): Thue, Edith B.
Rutherford, Edward S. (Edward Stevens), 1954-
Buker, David G.
South Florida Research Center
Type of Resource: text
Genre: Technical report
Issuance: monographic
Date Issued: 1982-12
Publisher: United States Department of the Interior, National Park Service, South Florida Research Center, Everglades National Park
Place of Publication: Homestead, Fla.
Physical Form: electronic resource
Extent: 32 pages, illustrations, maps; 28 cm.
Language(s): English
Summary: This study focused on the age, growth and mortality of snook, Centropomus undecimalis, collected from sportfishermen in ENP from May 1976 through December 1979. Three hundred twenty-five fish ranged in length from 284-940 mm FL and in weight from 0.7 - 11.6 kg. Mean lengths of fish were largest in spring and smallest in winter. There were no differences in mean length among areas of capture. Annulus formation occurred in spring (March-May). Ages of fish were mainly 4-5 year-olds. Recruitment to the fishery began at age 2 and was completed at age 6.
Summary: The overall sex ratio favored males 3/1 and there were no differences in mean age of fish among areas of capture. Mean calculated growth of all snook was 375 mm FL in the first year and 57-90 mm thereafter. Calculated fish lengths at age differed among areas of capture and sexual differences in length-weight relationship were noted. Annual mortality rate of all fully recruited fish was 78%. Sexual differences in mortality rates were discussed.
Identifier: 59669672 (oclc), FI00534683 (IID), 994342 (digitool), SER-91: (Southeast Regional Office, National Park Service) (stock number), NRBIB:EVER-5570 (NPS Natural Resources Bibliography Number) (stock number), fiu:1159 (fedora), AAA7226QF
Note(s): Edith B. Thue, Edward S. Rutherford and David G. Buker.
Electronic reproduction. [Florida] : State University System of Florida, PALMM Project, 2005. (Everglades online collection) Mode of access: World Wide Web. System requirements: Internet connectivity; Web browser software; Adobe Acrobat Reader to view and print PDF files. Electronically reproduced by Florida International University from a technical report held in the Green Library at Florida International University, Miami.
Subject(s): Snook -- Florida -- Everglades National Park
Snook -- Florida -- Everglades National Park -- Age
Snook -- Florida -- Everglades National Park -- Growth
Snook -- Florida -- Everglades National Park -- Mortality
Fishes -- Florida -- Everglades National Park
Everglades -- 3090202
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI00534683.pdf
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI00534683.jpg
Owner Institution: FIU
Has Part:
(OCoLC)09224614
Is Part of Series: Report (South Florida Research Center) ; T-683.