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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

ECOLOGICAL ASPECTS AND SEXUAL MATURITY OF A SOUTHWESTERN ATLANTIC POPULATION OF THE PLANKTONIC SHRIMP LUCIFER FAXONI (DECAPODA: SERGESTOMEA)

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Author(s):
Alves Teodoro, Sarah de Souza [1, 2] ; Farinelli Pantaleao, Joao Alberto [1, 2] ; Negreiros-Fransozo, Maria Lucia [2, 3] ; da Costa, Rogerio Caetano [1, 2, 4]
Total Authors: 4
Affiliation:
[1] Univ Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, LABCAM Lab Biol Camaroes Marinhos & Agua Doce, BR-17033360 Sao Paulo - Brazil
[2] Univ Estadual Paulista, Inst Biociencias, Programa Posgrad Zool, BR-18618970 Sao Paulo - Brazil
[3] Univ Estadual Paulista, Dept Zool, Nucleo Estudos Biol Ecol & Cultivo Crustaceos, BR-18618970 Sao Paulo - Brazil
[4] Univ Estadual Paulista, Fac Ciencias, Dept Ciencias Biol, BR-17033360 Sao Paulo - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Crustacean Biology; v. 34, n. 4, p. 422-430, JUL 2014.
Web of Science Citations: 2
Abstract

The demographic structure and morphological sexual maturity of the shrimp Lucifer faxoni Borradaile, 1915 are described here. The studied specimens came from Ubatuba Bay, in the north littoral of Sao Paulo State, Brazil. In each month of capture, 14 stations, 7 offshore and 7 inshore, were sampled with neuston nets during high tide periods. Relative growth was analyzed by observing the change in growth patterns of certain parts of the body in relation to somite length and total length (TL). Lucifer faxoni was most abundant in offshore regions. The relationship that best showed the size at the onset of the sexual maturity was the length of the 6th somite of the abdomen vs. TL. The external morphology of the petasma evidenced three development stages and such characteristic was also used to estimate sexual maturity for males using the P-50 technique. Our results show there is a preference of L. faxoni for offshore areas, probably explained by differences in abiotic factors. Both estimates of maturity (relative growth and petasma stage) were very similar. In this context, we propose the search for new structures for the analysis of the maturity of L. faxoni, thus promoting a wider study of what is related to the maturation of sergestoid shrimps. (AU)

FAPESP's process: 09/54672-4 - Reproductive biology and dynamic population of the Penaeoidean shrimps (Crustacea, Decapoda) from southeastern Brazilian coast: latitudinal effect and suggestion for fishery control
Grantee:Rogério Caetano da Costa
Support type: Regular Research Grants
FAPESP's process: 10/50188-8 - Decapod crustaceans: multi-disciplinary characterization of the sea biodiversity of the State of São Paulo (taxonomy, spermiotaxonomy, molecular biology and population dynamics)
Grantee:Fernando Luis Medina Mantelatto
Support type: BIOTA-FAPESP Program - Thematic Grants