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Learning of leg position by the ghost crab Ocypode ceratophthalma
Behavioral Biology, 1976Experiments were carried out on the ability of single legs of the whole ghost crab Ocypode ceratophthalma to learn to avoid the receipt of electric shocks coupled with leg position (the Horridge paradigm). Ocypode is a common, hardy, very active, air-breathing subtropical species. Aversive shocks were delivered through a silver wire attached to the
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Ghost Fishing by Blue Crab Traps
North American Journal of Fisheries Management, 1993Abstract Ghost fishing by abandoned or lost traps for blue crab Callinectes sapidus was evaluated experimentally in the Timbalier Bay estuary, Louisiana. An average of 12.8 blue crabs per trap were captured by the initial baiting, and an additional 34.9 blue crabs later entered each subsequently unbaited trap; of the total captured, 25.8 died and 21.7 ...
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Uptake of soil capillary water by ghost crabs
Nature, 1976SEVERAL semiterrestrial crabs, including some ghost crabs (genus Ocypode) can extract interstitial water from damp sand1–3. This enables them to offset their high evaporative losses even in habitats lacking surface water. The mechanism involved has remained unknown, although there have been a few observations of how Gecarcinus lateralis takes up ...
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Coastal Management, 2006 There is increasing concern regarding the impacts of recreational four-wheel driving (4WDing) on sandy beach environments. The ghost crab Ocypode cordimanus is a widely distributed Australian species that utilizes beaches and dunes for constructing ...
McPhee, D. P., Moss, D.
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Stride frequency in relation to allometric growth in ghost crabs
Journal of Zoology, 2015AbstractBody size has significant impacts on fundamental processes of locomotion, including the operational frequency of skeletal muscle contraction, which declines systematically with increasing size. Although this shift in operation frequency and contractile kinetics is well documented in the literature, the mechanisms responsible for these changes ...
S. B. Whittemore +3 more
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, 2021
Sandy beaches are dynamic systems that harbor diverse macrofauna species, such as the ghost crab Ocypode quadrata, which has a wide distribution and it is considered useful in ecological evaluations. Population parameters of O. quadrata based on indirect
Frank A. Ocaña, A. Jesús-Navarrete
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Sandy beaches are dynamic systems that harbor diverse macrofauna species, such as the ghost crab Ocypode quadrata, which has a wide distribution and it is considered useful in ecological evaluations. Population parameters of O. quadrata based on indirect
Frank A. Ocaña, A. Jesús-Navarrete
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The ultrastructure of normal and glycerol treated muscle in the ghost crab, Ocypode cursor
Cell and Tissue Research, 1975The ultrastructure of normal and glycerol treated fibers of the closer muscle of the ghost crab, Ocypode cursor, was studiedmthe muscle is composed of presumably phasic (short sarcomeres) and tonic (long sarcomeres) fibers, the latter greatly predominating. Horseradish peroxidase (HRP) was used as an extracellular tracer to delineate the tubular system
M, Castel, D, Papir
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Science of the Total Environment
Metallurgical activities are a significant source of settleable atmospheric particulate matter (SePM). The material is exposed to wind action, leading to its deposition throughout terrestrial and aquatic ecosystems, thus promoting contamination by metals
C. Nobre +11 more
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Metallurgical activities are a significant source of settleable atmospheric particulate matter (SePM). The material is exposed to wind action, leading to its deposition throughout terrestrial and aquatic ecosystems, thus promoting contamination by metals
C. Nobre +11 more
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Family Ocypodidae Rafinesque, 1815 (Ghost Crabs, Fiddler Crabs)
2017Carapace quadrate, transversely rectangular, pentagonal, markedly thick, dorsal surface moderately convex, smooth, regions weakly or never defined, lateral margins entire, without any dentation, junction between anterolateral and posterolateral margins not distinct. Front markedly narrow, straight, or very faintly bilobed, strongly deflexed.
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Barth's myochordotonal organ as an acoustic sensor in the ghost crab,Ocypode
Experientia, 1974Nachweis des Barth'schen Myochordotonal-Organs bei der KrabbeOcypode, als sensorieller Apparat fur hochfrequente, akustische Signale.
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