Environmental substrate selection and daily habitual activity in Xiphopenaeus kroyeri shrimp (Heller, 1862) (Crustacea: Penaeioidea)

Autor(es)

Freire, Fulvio A. M. ^[1] ; Luchiari, Ana C. ^[2] ; Fransozo, Vivian ^[3]

Afiliação do(s) autor(es)

^[1] Univ Fed Rio Grande do Norte, Dept Bot Ecol & Zool, BR-59072970 Natal, RN - Brazil

^[2] Univ Fed Rio Grande do Norte, Dept Fisiol & Patol, BR-59078970 Natal, RN - Brazil

^[3] Inst Fed Educ Ciencia & Technol Baiano, BR-45320000 Santalnes, BA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INDIAN JOURNAL OF GEO-MARINE SCIENCES; v. 40, n. 3, p. 325-330, JUN 2011.
• Citações Web of Science: 17

Resumo

Present study consists the study on environmental substrate preference and daily habitual activity of X. kroyeri shrimp. Six different substrate combinations were: tested using silt and clay, various granulometries of sand, and gravel. Experimental tank for preference testing consisted of a 50 cm diameter cylindrical tank with 6 lateral compartments and a radial area in the middle. Every substrate combination prepared was randomly chosen for each compartment. Each substrate was spread to have a 5 cm thickness in the compartments. One isolated individual for each trial (n = 40) was used. Activities of the animals were observed 8 times a day, at 13:30, 14:30, 17:30, 18:30, 0:30, 1:30, 7:30 and 8:30 h. X. kyoyeri had a significant preference for very fine and fine sand. During the day light lime burrowing activity was more intense while at night swimming was higher. Present results enabled us to conclude that X. kroyeri has preference for very fine and fine sand substrate. (AU)

• Processo FAPESP: 02/02274-6 - Distribuição ecológica e biologia populacional de Xiphopenaeus kroyeri (Heller, 1862) (Crustacea, Decapoda, Penaeidae) no litoral do estado de São Paulo
• Beneficiário: Fulvio Aurelio de Morais Freire
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 98/03134-6 - Análise bioecológica de crustáceos braquiúros costeiros do Litoral Norte Paulista
• Beneficiário: Maria Lucia Negreiros Fransozo
• Modalidade de apoio: Auxílio à Pesquisa - Regular