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Effect of crab bioturbation on organicmatter processing in SouthWest Atlantic intertidal sediments
(Elsevier Science, 2014-06-05)
Organic matter (OM) remineralization plays a key role in controlling the biogeochemistry of marine sediments. Through their burrowing activities, bioturbating macrofauna not only induces physical, chemical and biological ...
The influence of habitat on metabolic and digestive parameters in an intertidal crab from a SW atlantic coastal lagoon
(Soc Royale Zoologique Belgique, 2021-08)
The hepatopancreas of decapod crustaceans is an organ which can act as indicator for digestive and metabolic parameters under different physiological and / or environmental conditions. However, biochemical studies on ...
Regenerative bioturbation by intertidal burrowing crabs modifies microphytobenthic composition and enhances primary production in SW Atlantic mudflats
(Inter-Research, 2019-12)
In coastal systems, benthic microalgae are important primary producers that significantly contribute to global primary production. Microphytobenthic (MPB) community structure and the ecosystem functions that it mediates ...
Differential coloration patterns in the intertidal crab Neohelice (=Chasmagnathus) granulata
(Cambridge University Press, 2010-12)
Many crustaceans with spatial segregation may present differential body coloration depending on the habitat they inhabit. Since crustaceans are unable to synthesize carotenoids, individuals must acquire them from their ...
Effect of food addition on the reproductive intensity and timing of both sexes of an intertidal crab
(Inter-Research, 2010-02)
Males and females of most animals time reproduction and synchronize their reproductive activity to maximize lifetime fitness. When food is abundant, however, the 2 sexes may time investments in reproduction differently due ...
Similar effects on sediment structure and infaunal community of two competitive intertidal soft-bottom burrowing crab species
(Cambridge University Press, 2011-11)
The intertidal crabs Neohelice granulata and Cyrtograpsus angulatus are common on the south-west Atlantic coast but they rarely share the same microhabitat. They are similar in size and in several life history traits which ...
Influence of environmental variables on the distribution of intertidal porcellanid crabs in Sepetiba Bay, Rio de Janeiro, Brazil
(Pontificia Universidad Católica de Valparaíso, 2017)
The influence of habitat, season and tidal regime in the activity of the intertidal crab Neohelice (=Chasmagnathus) granulata
(Springer, 2012-04)
The activity pattern of intertidal crabs is in influenced by factors that usually change rhythmically following tidal and/or diel cycles, and is often associated with the use of refuges. The movement activity of the burrowing ...
Neohelice granulata burrow fidelity behaviour related to landscape heterogeneity
(Springer, 2018-11-07)
Neohelice granulata provides an interesting animal model for studying behavioural process because it is widely distributed, ensuring variability related to different environmental conditions. The aim of this study was to ...
Negative interactions between two SW Atlantic intertidal crabs in soft-bottom habitats
(Springer, 2007-12)
The intertidal crabs Chasmagnathus granulatus and Cyrtograpsus angulatus coexists across the SW Atlantic intertidal. Previous studies in this region suggest that C. granulatus displace C. angulatus in soft sediment where ...