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Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida,... POPULATION BIOLOGY AND REPRODUCTION OF KALLIAPSEUDES SCHUBARTII MAÑÉ-GARZÓN, 1949 (PERACARIDA, TANAIDACEA) IN A TROPICAL COASTAL LAGOON, ITAIPU, SOUTHEASTERN BRAZIL BY SIMONE PENNAFIRME 1 ) and ABILIO SOARES-GOMES 2,3 ) 1 ) Programa de Pós-Graduação em Biologia Marinha, Universidade Federal Fluminense, P.O. Box 100.644, Niterói, 24001-970 Brazil 2 ) Department of Marine Biology, Universidade Federal Fluminese, P.O. Box 100.644, Niterói, 24001-970 Brazil ABSTRACT A population of the tanaidacean, Kalliapseudes schubartii Mañé-Garzón, 1949 was sampled monthly in order to study its life cycle in a southeastern Brazilian tropical lagoon. The species’ density changed seasonally, increasing in the beginning of the wet season and presenting peaks following precipitation peaks in other periods. Density changed due to oscillations in numbers of larval stages and juveniles. Females were larger than males, and the size at onset of sexual maturity of females was 5.9 mm. The sex-ratio was female-skewed during all months, in accordance with studies of the same species at other sites along the Brazilian coast and on other species of tanaids. Ovigerous females and other developmental stages were observed in all samples. Peaks in the frequencies of larval stages and juveniles were followed by peaks in ovigerous female frequency. Comparisons of populations http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Crustaceana , Volume 82 (12): 1509 – Jan 1, 2009

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References (42)

Publisher
Brill
Copyright
© 2009 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
DOI
10.1163/001121609X12487811051589
Publisher site
See Article on Publisher Site

Abstract

POPULATION BIOLOGY AND REPRODUCTION OF KALLIAPSEUDES SCHUBARTII MAÑÉ-GARZÓN, 1949 (PERACARIDA, TANAIDACEA) IN A TROPICAL COASTAL LAGOON, ITAIPU, SOUTHEASTERN BRAZIL BY SIMONE PENNAFIRME 1 ) and ABILIO SOARES-GOMES 2,3 ) 1 ) Programa de Pós-Graduação em Biologia Marinha, Universidade Federal Fluminense, P.O. Box 100.644, Niterói, 24001-970 Brazil 2 ) Department of Marine Biology, Universidade Federal Fluminese, P.O. Box 100.644, Niterói, 24001-970 Brazil ABSTRACT A population of the tanaidacean, Kalliapseudes schubartii Mañé-Garzón, 1949 was sampled monthly in order to study its life cycle in a southeastern Brazilian tropical lagoon. The species’ density changed seasonally, increasing in the beginning of the wet season and presenting peaks following precipitation peaks in other periods. Density changed due to oscillations in numbers of larval stages and juveniles. Females were larger than males, and the size at onset of sexual maturity of females was 5.9 mm. The sex-ratio was female-skewed during all months, in accordance with studies of the same species at other sites along the Brazilian coast and on other species of tanaids. Ovigerous females and other developmental stages were observed in all samples. Peaks in the frequencies of larval stages and juveniles were followed by peaks in ovigerous female frequency. Comparisons of populations

Journal

CrustaceanaBrill

Published: Jan 1, 2009

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