Seasonal Changes in Feeding Activity of the Sea Urchin Strongylocentrotus nudus in Oshoro Bay, Southwestern Hokkaido.
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Bacterial Clearance in the Sea Urchin , Strongylocentrotus
approved: Redacted for Privacy __ Dr. Christopher J. Bayne Characteristics of bacterial clearance were investigated in the purple sea urchin, Strongylocentrotus purpuratus (Echinodermata: Echinoidea). Primary clearance kinetics were determined for three bacteria, a marine Gram negative motile rod, a marine Gram positive nonmotile rod, and a fresh water fish pathogen, Aeromonas salmonicida. Vari...
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Substratum cavities affect growth-plasticity, allometry, movement and feeding rates in the sea urchin Strongylocentrotus purpuratus.
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متن کاملcomparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
15 صفحه اولSpatial vision in the purple sea urchin Strongylocentrotus purpuratus (Echinoidea).
Recent evidence that echinoids of the genus Echinometra have moderate visual acuity that appears to be mediated by their spines screening off-axis light suggests that the urchin Strongylocentrotus purpuratus, with its higher spine density, may have even more acute spatial vision. We analyzed the movements of 39 specimens of S. purpuratus after they were placed in the center of a featureless tan...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1996
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.62.592