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Population Characteristics, Food Habits and Spawning Activity of Spotted Seatrout, Cynoscion nebulosis, in Everglades National Park, Florida: Report T-668.

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Date Issued:
1982-06
Summary:
From November 1978 to January 1980, age, growth, mortality, foods, and spawning activity of 570 spotted seatrout were studied from sportfishermen catches in Everglades National Park. Results indicated that ages of fish were mainly 3-5 year olds, fish were fully recruited by age 4, males and females lived to ages 6 and 7, respectively, while the sex ratio favored females. Fish lengths, back calculated from scale annuli, varied between sexes, among seasons of capture, and year classes.
Title: Population Characteristics, Food Habits and Spawning Activity of Spotted Seatrout, Cynoscion nebulosis, in Everglades National Park, Florida: Report T-668.
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Name(s): Rutherford, Edward S. (Edward Stevens), 1954-
Thue, Edith B.
Buker, David G.
South Florida Research Center
PALMM (Project)
Type of Resource: text
Genre: Technical Report.
Issuance: monographic
Date Issued: 1982-06
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: 48 pages, illustrations, maps; 28 cm.
Language(s): English
Summary: From November 1978 to January 1980, age, growth, mortality, foods, and spawning activity of 570 spotted seatrout were studied from sportfishermen catches in Everglades National Park. Results indicated that ages of fish were mainly 3-5 year olds, fish were fully recruited by age 4, males and females lived to ages 6 and 7, respectively, while the sex ratio favored females. Fish lengths, back calculated from scale annuli, varied between sexes, among seasons of capture, and year classes.
Summary: Annual mortality of all fish was 0.77. Their diet was carnivorous,consuming shrimp and fish; it varied with size. Spotted seatrout spawned year-round with peaks in spring and summer; fish aged 2-4 contributed most to the spawn. When results of this study were compared with an earlier investigation (Stewart 1961, no. 397 in bibliography), apparent changes in age distribution, age at full recruitment and mortality since 1959 were found, although mean sizes at age of fish have not changed.
Summary: Study Period:November 1978-January 1980; Study Type:Qualitative, quantitative; Gear Type:Hook & line; Habitat:estuarine and coastal marine; Dominant Taxon/Taxa Studied:Cynoscion nebulous.
Identifier: 56537514 (oclc), FI00528668 (IID), 994215 (digitool), SER-91: (Southeast Regional Office, National Park Service) (stock number), fiu:1101 (fedora), AAA7262QF
Note(s): Edward Rutherford, Edith Thue and David Buker.
Electronic reproduction. [Florida] : State University System of Florida, PALMM Project, 2004. (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): Fishes -- Florida -- Everglades National Park
Spotted seatrout -- Florida -- Everglades National Park
Everglades -- 3090202
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI00528668.pdf
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI00528668.jpg
Use and Reproduction: http://rightsstatements.org/vocab/NoC-US/1.0/
Host Institution: FIU
Has Part:
(OCoLC)09061304
Is Part of Series: Report (South Florida Research Center) ; T-668.
Is Part of Series: Everglades online collection.