Fecundidade

MARIA HELENA DE ARRUDA LEME, VALTER JOSÉ COBO, EMERSON CONTREIRA MOSSOLIN Y LAURA S. LOPEZ GRECO

Crustaceos Decapodos Estuarinos do Estado de Sao Paulo

UNESP, Botucatu, SP, Brasil

Lugar: Sao Paulo; Año: 2007;

3.3 Fecundidade Helena de Arruda Leme, Valter Cobo,  Emerson C. Mossolin & Laura López Greco   Dra. Maria Helena de Arruda Leme. Programa de Pós-Graduação em Ciências Ambientais, Universidade de Taubaté - UNITAU, Estrada Municipal Dr. José Luiz Cembranelli, 5000, CEP 12 081-010, Taubaté, SP. mhleme@uol.com.br Dr. Valter José Cobo. Laboratório de Biologia Marinha, Insituto Básico de Biociências – IBB, Universidade de Taubaté – UNITAU, Av. Tiradentes, 500, CEP 12030-180, Taubaté, SP. vjcobo@uol.com.br Dr. Emerson Contreira Mossolin Laboratório de Bioecologia e Sistemática de Crustáceos – Departamento de Biologia - Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP) - Av. Bandeirantes, 3900 - Ribeirão Preto - São Paulo - CEP: 14040-901. ecmossolin@yahoo.com.br Dra. Laura S. López Greco Departamento de Biodiversidad y Biologia Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina. Ciudad Universitaria, Pabellón II, Núñez (C1428EHA), Buenos Aires, Argentina. laura@bg.fcen.uba.ar   Fecundity The fecundity of Pleocyemata from estuarine areas of Sâo Paulo State has been extensively well documented for brachyuran species since 1998. For caridean shrimps species, that use estuaries for reproduction and have commercial value, many studies are restricted to dissertations and thesis not yet published. This chapter presents the status of knowledgement about the fecundity for brachyurans that inhabiting mangroves and for carideans, that use the estuarine area as part of its life cycle and an introduction defining many concepts and the variables that modulate the fecundity. For brachyuran crabs the studies have been carried out mainly in Grapsoidea and Ocypodoidea, the most abundant crab species in mangroves while for Caridea the studied genus are Macrobrachium, Atya, Palaemon, Potimirin and Alpheus. Complementary information such as fertility, the occurrence of multiple spawnings, reproductive investment and eggs size is also shown. The main factors that modulate fecundity (like female size or embryo developmental stage) and the type of analysis for its study are discussed and compared between species and populations and it is suggested the necessity to study many other species (mainly caridean shimps) and to standardize methodologies for future research.   Palabras chaves: fecundidade, investimento reprodutivo, fertilidade, Brachyura, Caridea Key words: fecundity, reproductive output, fertility, Brachyura, Caridea