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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Allometry and population structure of Nicolea uspiana (Polychaeta: Terebellidae)

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Autor(es):
Garraffoni, A. R. S. [1] ; Yokoyama, L. Q. [1, 2] ; Amaral, A. C. Z. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Lab Macrobentos Marinho, BR-13083970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Dept Zool, Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Journal of the Marine Biological Association of the United Kingdom; v. 90, n. 5, p. 877-883, AUG 2010.
Citações Web of Science: 3
Resumo

The relative growth and population structure of the terebellid Nicolea uspiana were investigated in the intertidal zone of a rocky shore on the south-east coast of Brazil, from May 2006 to May 2007. Eight hundred and forty-seven individuals of N. uspiana were analysed: 391 males, 163 females, and 293 immatures. Although significant differences in some morphometric parameters were found, there was no sexual dimorphism between males and females. There were differences in total length, width of segments, and length of the notopodial region between matures and immatures. The negative allometry of the total length in relation to five other parameters showed that this feature is a good measure for estimating the individual size, which was then used in the analysis of population structure. This population of N. uspiana showed a bimodal size frequency distribution, with immature and mature individuals found during the entire year. This pattern indicates continuous reproduction, with each cohort growing for at least three to four months and being responsible for two consecutive settlement peaks. (AU)

Processo FAPESP: 05/59809-7 - Estudo comparativo da morfologia e ultraestrutura dos espermatozóides, reprodução e desenvolvimento de Paraeupolymnia uspiana e duas espécies de Streblosoma como base para o entendimento da evolução da história de vida em Terebellidae (Annelida: Polychaeta)
Beneficiário:André Rinaldo Senna Garraffoni
Linha de fomento: Bolsas no Brasil - Pós-Doutorado