Results 201 to 210 of about 27,120 (228)

Polychaetes

Journal of Experimental Marine Biology and Ecology, 2002
Annemarié Avenant-Oldewage, Carol Simon, Alan Hodgson   +2 more
openaire   +2 more sources

Plutonium isotope ratios in polychaete worms

Nature, 1976
WE have noted with interest recent reports which suggest a preferential biological availability of 238Pu over 239+240Pu in terrestrial and aquatic organisms1–4. Although kinetic isotope effects do occur in biological systems for low mass number elements (H, C, N), such effects are generally discounted as the mass number of the element increases.
T M, Beasley, S W, Fowler
openaire   +2 more sources

Amphipacific Distribution of Polychaetes

Journal of the Fisheries Research Board of Canada, 1971
Some 25 polychaete species common to Asiatic and American coasts are recorded in south-boreal and subtropical waters of the Pacific; they are absent in both northern cold regions (Bering and Okhotsk seas) and in tropical zones. Examples are also given of analogous, closely related twin species, and subspecies.
openaire   +1 more source

Bioturbation behaviour in two Mediterranean polychaetes

Journal of the Marine Biological Association of the United Kingdom, 2001
To evaluate the potential for sediment reworking of two deposit-feeder polychaetes, daily sediment expelled per single worm has been estimated in laboratory experiments on 20 specimens of Nainerislaevigata and 20 of Notomastus latericeus. Both species showed very low values of daily sediment expelled especially when compared to literature data ...
Giangrande A, Licciano M, Fanelli G
openaire   +3 more sources

Larval settlement of polychaetes

Hydrobiologia, 1999
Many benthic marine invertebrate species have a dispersive larval stage in their life histories. Larvae typically spend hours, weeks, or months developing in plankton before they become competent to settle and metamorphose. Recruitment to benthic populations depends on the numbers of competent larvae transported to sites and/or the interaction between ...
openaire   +2 more sources

Methods of Culturing Polychaetes

1975
The purpose of this paper is neither to review the literature on polychaete reproduction nor to describe the diverse reproductive habits and developmental stages that occur among polychaetes. Rather, this is an attempt to summarize the “do’s, don’t’s, and probably’s” pertaining to the successful culture of this fascinating group of marine invertebrates.
David Dean, Michael Mazurkiewicz
openaire   +1 more source

POLYCHAETES

Marine Pollution Bulletin, 1982
JACK COHEN, BRENDAN MASSEY
openaire   +2 more sources

Bioluminescence in Pelagic Polychaetes

Journal of the Fisheries Research Board of Canada, 1971
Of six holopelagic polychaete families, the Tomopteridae and Alciopidae are the only ones having representatives that appear to be photogenic. Previous investigators localized the site of photogenic organs to certain parapodial glands in the tomopterids. Photogenic organs have not been demonstrated in the alciopids, but some species have been reported
openaire   +1 more source

Polychaetes from Monterey Bay

1918
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Polychaete-assisted sand filters

Aquaculture, 2010
The objective of this study was to investigate the productivity and functionality of sand filters stocked with marine worms for wastewater treatment at mariculture facilities. Medium bedding sand which is commonly available in coastal sedimentary deposits and nereidid polychaetes (Perinereis nuntia and P.
openaire   +2 more sources