2026-04-17T11:54:33Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/172132024-06-18T13:36:35Zcom_2072_452955com_2072_2054col_2072_452958

00925njm 22002777a 4500 dc Planella Albi, Laia author Vera Rodríguez, Manuel author García Marín, José Luis author Heras Mena, Sandra author Roldán Borassi, María Inés author 2019-05-10 Understanding life history variation and strategies is crucial for stock assessment and fisheries management due to the direct effects on population dynamics, effective population size, sex-ratios, levels of inbreeding, and relatedness among individuals. Aristeus antennatus (En ─ Blue and red shrimp; Fr ─ Crevette rouge; Sp ─ Gamba rosada) is one of the most exploited demersal resources in the Western Mediterranean Sea. However, information regarding the mating system and mate choice preferences remains largely unknown. Advances in molecular genetic markers and methods of inferring biological relationships among individuals have facilitated new insights into the reproductive dynamics of the species in the wild. Here, we used microsatellite markers to examine the A. antennatus mating system and putative mate choice preferences. Our results provided clear evidence of polyandry and polygyny. Relatedness analyses, together with FST and DAPC values showed females exhibited a mating bias towards unrelated males. Mating males were inferred from spermatophores and suggested males were sympatric with females and were also from other spawning grounds. Our findings provided the first description of the reproductive behavior of blue and red shrimp This work was supported by a grant from Spanish Ministerio de Economia y Competitividad (CTM2014-54648-C2-2-R) to MIR. LP benefited from predoctoral fellowship from the Universitat de Girona (BR2014) http://hdl.handle.net/10256/17213 Genètica animal Animal genetics Gambes -- Genètica Shrimps -- Genetics Genètica de poblacions Population genetics Mating structure of the blue and red shrimp, Aristeus antennatus (Risso, 1816) characterized by relatedness analysis