The sense-organs of nereis virens, sars
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چکیده
منابع مشابه
Alteration and release of aliphatic compounds by the polychaete Nereis virens (Sars) experimentally fed with hydrocarbons.
In the laboratory, marine worms were fed with a mixture of algae and several aliphatic hydrocarbons for 15 days. After ingestion by the worms, 34.9% of hydrocarbons are found in the faeces and only 3.1% accumulated in the gut. The comparison between the initial mixture and the faeces shows that the worm's digestive process lead to changes in the distribution of the n-alkane mixture. These chang...
متن کاملPredation and sediment disturbance effects of the intertidal polychaete Nereis virens (Sars) on associated meiofaunal assemblages
A microcosm experiment was carried out to determine the effects of the activity of the burrowing polychaete Nereis virens (Sars) on the associated meiofauna. The sediment basin (76 3 41 cm) was filled with 10 cm of sandy sediment previously sieved with a 1-mm mesh to remove any undesired macrofauna and macrodetritus. Fifteen 13-cm long polyvinyl-chloride (PVC) tubes (I.D. 5 10 cm) were pushed i...
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Accidental pollution incidents are common in the marine environment and are often caused by oil-related activities. Here the potential of such an incident to disrupt reproduction in two polychaete species is investigated, using an environmentally relevant preparation of weathered Forties crude oil, i.e. the water accommodated fraction (WAF). Oocytes were collected and exposed to three concentra...
متن کاملThe Physiology of Sense Organs
to the non-sporeforming anaerobes (Bacteroidaceae, anaerobic cocci, Lacto-bacteria and Corynebacteria, Actinomycetes). The book by Smith and Holdeman, published as part of the American Lecture Series in Clinical Microbiology, fills a void. Both authors have been working in the Anaerobic Bacteriology Laboratory at the Virginia Polytechnic Institute for years and draw on extensive experience, par...
متن کاملBiotransformation of the polycyclic aromatic hydrocarbon pyrene in the marine polychaete Nereis virens.
In vivo and in vitro biotransformation of the polycyclic aromatic hydrocarbon (PAH) pyrene was investigated in the marine polychaete Nereis virens. Assays were designed to characterize phase I and II enzymes isolated from gut tissue. High-pressure liquid chromatography measurement of 1-hydroxypyrene, pyrene-1-glucuronide, pyrene-1-sulfate, and pyrene-1-glucoside appeared to be a sensitive metho...
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ژورنال
عنوان ژورنال: Journal of Comparative Neurology
سال: 1900
ISSN: 0092-7317,1550-7130
DOI: 10.1002/cne.910100102