Body injuries in male morphotypes of the Amazon River prawn (Macrobrachium amazonicum) Injuries in freshwater prawns

Autor(es)

Nogueira, Caio Santos ^[1] ; Carvalho-Batista, Abner ^{[1, 2]} ; Alves Teodoro, Sarah de Souza ^{[1, 3]} ; Costa, Rogerio Caetano ^[1] ; Farinelli Pantaleao, Joao Alberto ^{[1, 4]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Fac Sci, Dept Biol Sci, Lab Biol Marine & Freshwater Shrimps LABCAM, Av Engenheiro Luiz Edmundo Carrijo Coube 14-01, BR-17033360 Sao Paulo - Brazil

^[2] Paulista Univ UNIP, Inst Hlth Sci, Sao Paulo - Brazil

^[3] Rio Grande Fed Univ FURG, Lab Decapod Crustaceans LCD, Lab Marine Mol Ecol LEMM, Campus Carreiros, Rio Grande - Brazil

^[4] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto FFCLR, Dept Biol, Lab Bioecol & Crustacean Systemat LBSC, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MARINE AND FRESHWATER BEHAVIOUR AND PHYSIOLOGY; v. 54, n. 5-6 NOV 2021.
• Citações Web of Science: 0

Resumo

Fights between individuals in a population can be motivated by several factors, such as disputes over food, shelter and sexual partners. The present study aimed to evaluate the pattern of injury occurrence in the Amazon River prawn (Macrobrachium amazonicum). Prawns and environmental factors were sampled monthly, from February 2012 to September 2013, in the Tiete River, Sao Paulo, Brazil. Individuals were classified into eight different demographic classes and analyzed macroscopically for body injuries, which were separated into four categories (0-4). From the 2,234 prawns collected, 124 presented one or more types of physical damages. The males of dominant castes presented the highest amount of injuries, suggesting that these groups get involved more frequently in disputes. Possibly, reproductive events are a strong stimulus for the occurrence of fights in freshwater prawns since the greatest amount of injuries was observed in the period of reproductive peaks. (AU)

• Processo FAPESP: 18/13685-5 - Análise integrativa da fauna brasileira de crustáceos decápodes: taxonomia, sistemática filogenética, espermiotaxonomia, morfologia do desenvolvimento pós-embrionário, ecologia e conservação
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 19/00661-3 - A análise interdisciplinar comparativa entre os camarões Macrobrachium amazonicum (Heller, 1862) e Macrobrachium pantanalense (dos Santos, Hayd & Anger, 2013) suportam a diferenciação interespecífica?
• Beneficiário: Caio dos Santos Nogueira
• Modalidade de apoio: Bolsas no Brasil - Doutorado