Results 221 to 230 of about 22,890 (272)
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Polychaete/amphipod ratio revisited

Marine Pollution Bulletin, 2007
In this paper, we reexamine the opportunistic polychaete/amphipod ratio, modifying it to allow estuarine and coastal communities to be divided into the five classes suggested by the European Water Framework Directive (WFD). The resulting biological index, called the BOPA index, considers the total number of individuals collected in the samples, the ...
Dauvin, Jean-Claude, Ruellet, T.
openaire   +6 more sources

Polychaete worms (Annelida) collected in Golfo Dulce, during the Victor Hensen Costa Rica expedition (1993/1994).

Revista de Biología Tropical, 2017
A total of forty seven species of benthic polychaetes belonging to twenty five families have been identified from bottom samples taken in Golfo Dulce, Costa Rica, by the RV Victor Hensen.
H. Dean
semanticscholar   +1 more source

A sea of worms: polychaete checklist of the Adriatic Sea.

Zootaxa, 2015
The checklist of polychaetes of the Adriatic Sea (Mediterranean) based on bibliographic sources published from 1840 to 2014, as well as on novel data, with 49 new records for the area, is herein presented.
B. Mikac
semanticscholar   +1 more source

Comparative developmental toxicity of new aromatic halogenated DBPs in a chlorinated saline sewage effluent to the marine polychaete Platynereis dumerilii.

Environmental Science and Technology, 2013
Using seawater for toilet flushing may introduce high levels of bromide and iodide into a city's sewage treatment works, and result in the formation of brominated and iodinated disinfection byproducts (DBPs) during chlorination to disinfect sewage ...
Mengting Yang, Xiangru Zhang
semanticscholar   +1 more source

Behavior in Polychaetes

The Quarterly Review of Biology, 1971
It is suggested that, because of their relatively simple repertoires of behavior, polychaetes may be particularly useful in behavioral research. An interesting range of responses has already been described in these animals, including those involved in habitat selection, feeding, tube construction, escape from predators, fighting, pairing, swarming ...
openaire   +2 more sources

Products of haem synthesis in polychaetes

Comparative Biochemistry and Physiology, 1965
Abstract 1. 1. The tetrapyrrole pigments accumulated by annelid polychaetes have been extracted and identified. 2. 2. The haemoglobin- and chlorocruorin-synthesizing tissues contain large amounts of free porphyrins and corresponding haematins. The same compounds may also be found in other tissues. Traces of free porphyrin exist in the blood.
R. Phillips Dales, Charlotte P. Mangum
openaire   +3 more sources

Muscular system in polychaetes (Annelida) [PDF]

open access: possibleHydrobiologia, 2005
The structure of the polychaete muscular system is reviewed. The muscular system comprises the muscles of the body wall, the musculature of the parapodial complex and the muscle system of the dissepiments and mesenteries. Various types of organisation of the longitudinal and circular components of the muscular body wall are distinguished. In Opheliidae,
Anna Filippova, Alexander B. Tzetlin
openaire   +1 more source

On the eyes of polychaetes

Proceedings / Indian Academy of Sciences, 1949
1. A detailed study of the eyes of a few common polychaetes of Madras with different habits has been carried out giving a brief comparison of their structure with that of allied forms from European waters. 2. The eye in Eunicidae is usually composed of a retinal cup and a central refractive body which consists of a localised thickening ...
openaire   +2 more sources

Polychaete aquaculture and polychaete science: a mutual synergism

1999
In 1984, the commercial aquaculture of the polychaete Nereis virens was initiated in NE England, at about the same time similar developments took place in the Netherlands, both establishing alternative sources of this animal as a means of supplying existing markets for marine worms to be used as bait by sea anglers.
openaire   +3 more sources

A census of abyssal polychaetes

Deep Sea Research Part II: Topical Studies in Oceanography, 2009
Abstract As part of the Census of Marine Life's programme of summarising existing knowledge of the oceans, records of all polychaete species collected below 2000 m have been collated from the literature. A total of 3633 records was assembled into a database, revealing that 768 species, 358 of which were new to science, have been reported from the ...
Paterson, Gordon L.J.   +6 more
openaire   +3 more sources

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