Life-history traits of the red brocade hermit crab Dardanus insignis on the subtropical Brazilian coast

Autor(es)

Frameschi, Israel Fernandes ^{[1, 2]} ; de Andrade, Luciana Segura ^{[1, 2]} ; Duarte Alencar, Carlos Eduardo Rocha ^[3] ; Teixeira, Gustavo Monteiro ^{[1, 4]} ; Fransozo, Vivian ^{[1, 5]} ; Fernandes-Goes, Lissandra Correa ^[6] ; Fransozo, Adilson ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] NEBECC, Botucatu, SP - Brazil

^[2] Univ Estadual Paulista, Dept Zool, Inst Biociencias, Botucatu, SP - Brazil

^[3] Univ Fed Rio Grande do Norte, Dept Bot Ecol & Zool, BR-59072970 Natal, RN - Brazil

^[4] Univ Estadual Londrina, Dept Biol Anim & Vegetal, Londrina - Brazil

^[5] Univ Estadual Sudoeste Bahia, Dept Ciencias Nat, Vitoria Da Conquista - Brazil

^[6] Univ Estadual Piaui, Dept Biol, Parnaiba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MARINE BIOLOGY RESEARCH; v. 11, n. 3, p. 283-293, 2015.
• Citações Web of Science: 2

Resumo

We evaluated the population characteristics of Dardanus insignis, focusing on the reproductive period, juvenile recruitment, sexual maturity, growth and longevity of the species. Samples were collected monthly over two years (1998 and 1999), by trawling, in a subtropical region of Brazil. The hermit crabs were counted by demographic group, weighed and measured for cephalothoracic shield length, and their gonadal stage was identified using a stereo microscope. A total of 3169 hermit crabs were captured (1838 males and 1331 females). Ovigerous females were found from September to March; juvenile recruitment occurred throughout the year, peaking in summer. Males reached sexual maturity at larger sizes than females (cephalothoracic shield length = 4.4 and 4.1 mm, respectively). Longevity was estimated at 6.9 years for males and 4.3 years for females. The seasonal reproductive strategy, sexual maturity at similar sizes for males and females, continuous recruitment and differential growth are basic factors in the establishment and maintenance of the high abundance of D. insignis compared with other hermit crab species in the same region. (AU)

• Processo FAPESP: 97/12107-0 - Composição e distribuição de anomuros (Crustacea: Decapoda) do substrato não consolidado na região de Ubatuba, SP
• Beneficiário: Lissandra Corrêa Fernandes Góes
• Modalidade de apoio: Bolsas no Brasil - Doutorado