Ecology Of Intertidal Sea Anemones. Density, Dispersion And Autoecology Of Phymactis Clematis Dana, 1849 (Anthozoa:Actiniaria)
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چکیده
منابع مشابه
Common sea anemones Actinia equina are predominantly sessile intertidal scavengers
Coelenteron contents of anemones Actinia equina collected from 2 shore heights (upper and lower) on 3 shores (exposed, semi-exposed and sheltered) in south-west Ireland were investigated in summer 2009. Diets of exposed and semi-exposed shore anemones were dominated by small mussels Mytilus edulis, mostly (>90%) with broken/cracked shells. The diet of anemones on the sheltered shore was dominat...
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A sea anemone, normally a passive-looking animal, reacts to suitable food,.. stuffs by a series of fairly complicated activities. When its tentacles encounter solid food there is, first of all, a discharge of cnidae, which poison living prey and adhere to the food mass. These cnidae are independent effectors, responding directly to external excitation (Pantin, 1942). Next, the tentacles clasp t...
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We sought to determine if the global distribution of sea anemones (cnidarian order Actiniaria) conforms to the classic pattern of biogeography--taxon richness at the equator with attenuation toward the poles--a pattern that is derived almost entirely from data on terrestrial plants and animals. We plotted the empirical distribution of species occurrences in 10° bands of latitude based on publis...
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cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
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ژورنال
عنوان ژورنال: Ciencias Marinas
سال: 1995
ISSN: 0185-3880,2395-9053
DOI: 10.7773/cm.v21i1.985