Homochely in males of Minuca vocator (Herbst, 1804) (Brachyura: Ocypodidae: Gelasiminae)
Machos homoquelos de Minuca vocator (Herbst, 1804) (Brachyura: Ocypodidae: Gelasiminae)
DOI:
https://doi.org/10.37002/revistacepsul.vol13.2719e2024005Palabras clave:
Chama-marés, Itanhaém, malformação, manguezal, morfologiaResumen
Este estudo avalia a frequência do morfotipo anormal de macho homoquelo em uma população de Minuca vocator (Herbst, 1804) no manguezal do Rio Itanhaém (SP), Brasil, que difere do padrão heteroquelo típico observado em machos Gelasiminae. Dos 382 espécimes capturados (232 machos e 151 fêmeas), apenas dois machos exibiram quelípodos pequenos homoquelos, representando 0,86% da população masculina. Essa baixa porcentagem pode ser determinada geneticamente ou pode resultar da perda diferencial de quelípodos, dependendo da fase de desenvolvimento, que afeta permanentemente essa condição após a regeneração. Embora machos com ambos os morfotipos hipertrofiados anormais tenham sido observados em outras espécies de chama-marés, esse fenômeno não foi confirmado nesta população. Essas condições anormais podem conferir desvantagens ou vantagens aos indivíduos, sendo necessário experimentos etológicos específicos para investigar potenciais implicações para interações tróficas e comportamentais.
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