Sant'Anna Bruno S, Borges Roberto P, Hattori Gustavo Y, Pinheiro Marcelo A A
Programa de Pós-Graduação em Aquicultura e Pesca, Instituto de Pesca do Estado de São Paulo, São Paulo, SP, Brasil.
Universidade Santa Cecília/UNISANTA, Santos, SP, Brasil.
An Acad Bras Cienc. 2014 Sep;86(3):1411-21. doi: 10.1590/0001-3765201420140093.
The mangrove crab Ucides cordatus is one of the most exploited crustaceans in Brazil. The present study investigated the breeding season of this species and the period of the "andada" phenomenon, when the crabs are active outside their burrows and perform agonistic behaviors. Furthermore related them to environmental factors, in a mangrove on the coast of Brazil, with inferences about management of this crab. The crabs reproduced from October through February. The "andada" occurred from November through February, with typical characteristics in the first two months, during the full and new moon periods, and was influenced positively by the air and soil temperature, luminosity, and tidal amplitude, and negatively by salinity. Based on the results of the present study, the period when the "andada" occurs in other parts of Brazil could be defined, which will aid in managing this fishery. For Iguape, state of São Paulo, Brazil, we suggest a legal off-season for both sexes in December or during the full and new moon, including January.
红树林蟹Ucides cordatus是巴西被开发利用最多的甲壳类动物之一。本研究调查了该物种的繁殖季节以及“andada”现象出现的时期，即螃蟹在洞穴外活动并表现出争斗行为的时期。此外，还将其与巴西海岸一处红树林的环境因素相关联，并对该螃蟹的管理进行了推断。螃蟹在10月至2月繁殖。“andada”现象从11月持续到2月，在前两个月的满月和新月期间具有典型特征，并且受到气温、土壤温度、光照度和潮汐幅度的正向影响，而受盐度的负向影响。基于本研究的结果，可以确定巴西其他地区“andada”现象出现的时期，这将有助于对该渔业进行管理。对于巴西圣保罗州的伊瓜佩，我们建议在12月或满月及新月期间（包括1月）为两性设定法定休渔期。
