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Showing 1 to 6 of 6 for “"Holothurians"”.
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The feeding ecology of deposit-feeding holothurians
… the exception of the apodids, holothurians typically have 5 ambulacral rows of tube feet. Modification and/or reduction of these tube feet has produced a differentiation between the orsal and ventral surfaces, resulting in secondary bilateral symmetry in some species, e.g. …
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Sexual biochemistry in the deep sea – the link between phytoplankton and abyssal holothurians
Holothurians play an important role in carbon cycling. They dominate the abyssal oceanic megabenthos, reworking large amounts of organic matter. Holothurians require essential organic nutrients, such as carotenoids for their reproduction. Enhanced carotenoid concentration in the ovaries of …
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Embryological development of Cucumaria curata
… Most of the embryological investigations of holothurians on this coast have been with species having free swimming larval forms (Johnson and Johnson, 1950). Since the majority Holothurians have planktonic larvae, a study of the direct development found in C. curate might prove beneficial in …
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Biologically induced alternative states in two rocky subtidal benthic communities
… notably the sea urchin Parechinus angulosus, the holothurians Pentacta doliolum, Thyone aurea and Trachythyone insolens, large population of whelks, mostly Burnupena spp. and the barnacles Austromegabalanus cylindricus and Notomegabalanus algicola. In contrast, Malgas Island is dominated by a …
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Evaluating the resilience of Antarctic echinoderms to Southern Ocean freshening: Short- and long-term responses
… its vulnerability to freshening, while holothurians demonstrated remarkable tolerance, in particular Echinopsolus charcoti and Cucumaria georgiana. Long-term exposure studies on the echinoid Sterechinus neumayeri and asteroid Odontaster validus indicated successful acclimation to a …