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Mostrando ítems 11-20 de 207
Comparação do peso dos quelípodos e crescimento em duas espécies de sirís do gênero Callinectes (Brachyura, Portunidae)
(1998-12-01)
A comparison of the cheliped's weight in two species of the genus Callinectes was accomplished. The species C. danae e C. ornatus were collected by two otter trawl in Ubatuba bay (23°26' S and 45°02' W). The allometric ...
Rare major cheliped abnormalities in the shrimp Alpheus estuariensis (Crustacea: Alpheidae)
(Cahiers De Biologie Marine, 2018-01-01)
Malformations or abnormalities in crustaceans have been attributed to somatic mutations, environmental disturbances, injuries, parasitic diseases, somatic mutations, and errors during morphogenetic processes. This study ...
Heteroquely, laterality, maturity body size and shape variation of males and females of the endemic South American anomuran Aegla quilombola Moraes, Tavares & Bueno, 2017
(2020-01-01)
Aegla quilombola: is an anomuran crab endemic to São Paulo State, Brazil. The present manuscript aims to provide information about sexual dimorphism using geometric morphometrics, as well as information about heterochely, ...
Potential production of the Caribbean spiny lobster (Decapoda, Palinura) fisheries
(Crustaceana, 2009)
Spiny lobster Panulirus argus (Latreille, 1804) constitutes the most important fishery of the Caribbean; it accounts for nearly 42,000 tonnes. Evidence suggests that high fishing mortality (F) may have been overexploiting ...
Male reproductive strategies in two species of spider crabs, Leurocyclus tuberculosus and Libinia spinosa
(Elsevier Gmbh, 2020-09)
Reproductive strategies vary according to season length, individual reproductive traits, and factors associated with the social context such as density and sex ratio of the individuals. The social context predicts the ...
Plasticidade comportamental e morfológica em Aegla longirostri (Decapoda: anomura)
(Universidade Federal de Santa MariaBrasilCiências BiológicasUFSMPrograma de Pós-Graduação em Biodiversidade AnimalCentro de Ciências Naturais e Exatas, 2015-03-31)
This study was divided in two papers, which addressed the antipredator behavior and sexual selection in Aegla longirostri. To evaluate the Aegla longirostri antipredator behavior we performed three experiments subdivided ...
Different strategies and shapes: the relationship between mating system and sexual dimorphism in two freshwater prawn species
(2022-01-01)
Caridean prawns show five different types of mating systems and may show specific morphological characters depending on the reproductive strategy, resulting in sexual dimorphism between males and females. The present study ...
Morphotypes in male Amazon River Prawns, Macrobrachium amazonicum
(2004-06-14)
The occurrence of morphotypes in Macrobrachium amazonicum males was investigated. Prawns aged 4 to 24 months were taken from 10 aquaculture earthen ponds. Color and spination of right second cheliped were analyzed under a ...
Morphotypes in male Amazon River Prawns, Macrobrachium amazonicum
(2004-06-14)
The occurrence of morphotypes in Macrobrachium amazonicum males was investigated. Prawns aged 4 to 24 months were taken from 10 aquaculture earthen ponds. Color and spination of right second cheliped were analyzed under a ...