Results 131 to 140 of about 698 (158)

The profundal zoobenthos

1981
Little information was previously available on the sediments and invertebrate faunas of the deep waters of the large lochs of Scotland, except Loch Lomond. This paper reviews the published data and presents new information for the five largest lochs. The profundal sediments are characterised by very fine particle sizes (high fractions of clay and silt)
B. D. Smith, S. P. Cuttle, P. S. Maitland   +2 more
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Remediation of Eutrophic Water Body by Zoobenthos

Advanced Materials Research, 2011
To study the temperature factor affecting nutrient release of Cipangopludina Chinensis, laboratory simulation experiments were carried out, and other traits of Cipangopludina Chinensis, such as the effects of nitrogen cycling, phosphorus cycling, suspended substance in water column.
Qian Chen, Ding Long Li, Xiang Ji Kong, Yi Min Zhang, Jian Ying Chao   +4 more
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Zoobenthos der oberen Rur

Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens, 1978
Das Zoobenthos der oberen Rur wurde an 7 Probestellen zwischen der belgisch-deutschen Grenze und Hoven bei Düren qualitativ und semi-quantitativ untersucht und - soweit möglich - bis zur Art bestimmt. 63 Arten wurden festgestellt und werden nach ihrer Verteilung im Bachlängsschnitt beschrieben.
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Zoobenthos-inhabiting Sarcotragus muscarum (Porifera: Demospongiae) from the Aegean Sea

Hydrobiologia, 2002
The cavities and outer surfaces of 20 individuals of the sponge Sarcotragus muscarum collected from the Turkish Aegean coast during July–September 1993 contained a total of 148 zoobenthic species with 5299 individuals belonging to seven taxonomic groups. Among these, Polychaeta accounted for 60% of the total number of species, while Crustacea comprised
Katagan, T, Cinar, ME, Ergen, Z, Sezgin, M   +3 more
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Switching Between Deposit and Suspension Feeding in Coastal Zoobenthos

2001
This chapter, consisting of an overview followed by two sub chapters each dealing with a specific example, attempts to provide current insight into possible switching between deposit and suspension feeding in coastal zoobenthos. The examples are two common inhabitants of shallow waters, the polychaete Nereis diversicolor and the bivalve Macoma balthica.
Riisgård, Hans Ulrik, Kamermans, P.
openaire   +3 more sources

Modelling production and biomasses of zoobenthos in lakes

Aquatic Ecology, 2003
This work presents a dynamic model to predict zoobenthos in lakes. The model has been developed within the framework of a more comprehensive lake ecosystem model, LakeWeb, which also accounts for the following functional groups of organisms, phytoplankton, bacterioplankton, two types of zooplankton (herbivorous and predatory), macrophytes, prey fish ...
Lars Håkanson, Viktor V. Boulion
openaire   +1 more source

Riffle zoobenthos in streams receiving acid mine drainage

Water Research, 1972
Abstract The bottom fauna of a stream polluted by acid mine drainage, was studied, using the standard methods of sample collecting. In localities immediately influenced by mine drainage, where very low pH values and high acidities prevail, the effect of acid mine wastes on the ecology and composition of the benthic fauna is, in general, similar to ...
M Koryak, M.A Shapiro, J.L Sykora
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Seasonal dynamics of the Upper Ob zoobenthos

Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries)
results of studies of the seasonal dynamics of the Upper Ob zoobenthos in the city of Novosibirsk are presented. Zoobenthos rivers Ob the growing season of 2022, the Ob was represented by 6 systematic classes: bivalves (Bivalvia) and gastropods (Gastropoda), small-lobed worms (Oligochaeta),leeches (Hirudinea), multi-legged crayfish (Amphipoda), insects
L.S. Vizer, T.A. Balatskaya, M.A. Dorogin   +2 more
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Zoobenthos of the drainage zone of Novosibirsk Reservoir

Contemporary Problems of Ecology, 2011
Zoobenthos of the basic biotopes in the drainage zone of Novosibirsk Reservoir has been studied for the first time. Its composition and quantitative characteristics on the dried areas are determined depending on the ground composition, duration of drainage, distance from the zone of permanent submergence, and location under the minimal level of the ...
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Mercury and chlorinated hydrocarbons in zoobenthos of Lake Päijänne, Finland

Archives of Environmental Contamination and Toxicology, 1979
The average amounts of mercury, PCBs, and sigma DDT (primarily DDE), found in macrozoobenthos, on the wet basis, in Lake Päijänne, Finland, for the time period 1972-1974, were 79 ng/g, 29 ng/g, and 8 ng/g, respectively. Lindane was found in negligible amounts in only 2% of the samples examined; aldrin was present in 10% of the samples; no dieldrin was ...
openaire   +2 more sources