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The first reproductive parameters and evidence of multiple paternity in one new spiny dogfish species, Squalus albicaudus ( Squaliformes, Squalidae )
Author(s) -
Lamarca Felipe,
Vianna Marcelo,
Vilasboa Anderson
Publication year - 2020
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.14479
Subject(s) - biology , litter , fecundity , reproductive biology , mating , zoology , reproduction , mating system , ecology , fishery , embryo , population , demography , embryogenesis , sociology
Abstract Understanding elasmobranch reproductive biology is necessary for species conservation. Multiple paternity (MP) has been reported for elasmobranchs, and this study investigates the reproductive aspects and mating system (paternity genetic analyses) for Squalus albicaudus . Thirteen pregnant females were analysed concerning reproductive parameters, and the mating system was assessed for nine females and their litters. The study found a mean fecundity of 2.84 pups per litter without correlation between total female length and the number of embryos per litter. One litter showed evidence of MP, indicating the presence of polyandrous behaviour of the species.