Trophic biology of antarctic shallow-water echinoderms
نویسندگان
چکیده
منابع مشابه
Benthic Trophic Interactions in an Antarctic Shallow Water Ecosystem Affected by Recent Glacier Retreat
The western Antarctic Peninsula is experiencing strong environmental changes as a consequence of ongoing regional warming. Glaciers in the area are retreating rapidly and increased sediment-laden meltwater runoff threatens the benthic biodiversity at shallow depths. We identified three sites with a distinct glacier-retreat related history and different levels of glacial influence in the inner p...
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[1] The dynamics of abyssal equator-crossing flows are examined by studying simplified models of the flow in the equatorial region in the context of reduced-gravity shallow water theory. A simple ‘‘frictional geostrophic’’ model for one-layer cross-equatorial flow is described, in which geostrophy is replaced at the equator by frictional flow down the pressure gradient. This model is compared v...
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The ability of several subtropical echinoderm larvae to absorb large, dissolved organic molecules was assessed by exposing them to FITC-BSA and Ferritin. We tested shallow water auricularia and pentacula from unknown species, plutei from the shallow water Tripneustes sp. and deep water Cidaris blakei blastula and gastrula. Once larvae had been exposed for several hours, FITC-BSA treated larvae ...
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The trophic ecology of Antarctic anthozoans and their role in benthic−pelagic coupling processes is poorly understood. We studied 7 gorgonian species (Primnoisis sp., Fannyella nodosa, Ainigmaptilon antarcticum, Notisis sp., Primnoella sp., Dasystenella sp. and Thouarella sp.) in 2 Antarctic regions: the Eastern Weddell Sea and the Bransfield Strait (Antarctic Peninsula) in austral autumn 2000,...
متن کاملAntarctic marine biology
David K.A. Barnes and Andrew Clarke Primer interfering with the ability of a second species to locate mates. This could be the result of the one species’ calls simply masking those of the other, or it could be that the calls confuse individuals of the second species and cause them to approach heterospecific callers rather than those of their own species. Such signal jamming can also occur withi...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1994
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps111191