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Evidence of feminization in seahorses from a tropical estuary
Author(s) -
FreretMeurer Natalie Villar,
Vaccani Amanda do Carmo,
Cabiró Gabriela dos Santos
Publication year - 2021
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.14759
Subject(s) - biology , population , zoology , brood , sexual dimorphism , sex ratio , estuary , ecology , demography , sociology
Abstract Intersex has been reported regularly in wild populations of gonochoristic fish. The authors investigated the possible feminization of seahorses in a population of Hippocampus reidi in Brazil, as well as report a case of a brood pouch reduction after reproductive stimuli. The female seahorses of this population showed two kinds of morphological anomalies. The proportion of the animals affected in the study population was consistent and was uncorrelated with the sex ratio. The study indicates the changes in the sexual profile of the individual.