The complete larval development of the sesarmid crab Perisesarma fasciatum (Lanchester, 1900) from Singapore was obtained from laboratory culture. All four zoeal stages, the megalopa and the first crab stage are described and illustrated. The morphological characteristics of the larvae of P. fasciatum are compared with those of other known larvae of the genera Perisesarma and Parasesarma. The l...

Crabs belonging to the family Grapsidae are possibly one of the most important components of the fauna of mangrove forests globally, in part because of their influence in nutrient cycling by feeding on litterfall. This study investigated spatial and temporal patterns in relative numbers of 11 grapsid species in northern Australian mangrove forests. The results indicated that Perisesarma spp., N...

East Africa has a reduced mangrove crab species richness when compared to Asian mangroves. To date, only one species of Perisesarma de Man, 1895 has been reported in East Africa, despite more than 30 years of mangrove research in this region. Based on morphology, colour, mtDNA and behaviour, we describe a new species of Perisesarma from Kenya, P. samawati sp. nov. Surprisingly, when comparing m...

Background: Finding of a single female specimen of the African mangrove crab Perisesarma alberti Rathbun, Bull Am Mus Nat Hist 43: 379–474, 1921, in the intertidal zone of the eastern part of the Bay of Seine, English Channel, France. Result: Identification and description of the recorded crab, photographs and measurements of the single specimen. Comparison with reports from West African mangro...

reforestation is one of the philippines’ government efforts to restore and rehabilitate degraded mangrove ecosystems. although there is recovery of the ecosystem in terms of vegetation, the recovery of closely-linked faunal species in terms of community structure is still understudied. this research investigates the community structure of mangrove crabs under two different management schemes: p...

Victory or triumph display is a post-contest signal, performed only by winners and not by losers. While much is unknown about its function, there is mounting evidence that victory displays are widespread among animals. However, evidence remains anecdotal in crabs. Sesarmid crabs belonging to the genera Parasesarma and Perisesarma are known to have characteristic stridulatory structures on their...

Sesarmid crabs are possibly one of the most important components of mangrove fauna because of their influence on nutrient cycling and forest structure by feeding on litterfall. Little is known about the influence of electivity on the role of crabs in mangrove forests, and how this is affected by the availability of litter items. this study investigated electivity of three northern australian se...