Results 191 to 200 of about 7,565 (222)
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Hydrobiologia, 1986
This paper presents the results of studies on the benthos of Lake Glubokoe in 1980 as compared to data for 1949 and 1950. The abundance of chironomids increased at medium depths, that of oligochaetes became higher along the entire depth and that of Chaoborus remained the same. The community of Sergentia was replaced by that of Chironomus.
N. Yu. Sokolova, E. I. Izvekova
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This paper presents the results of studies on the benthos of Lake Glubokoe in 1980 as compared to data for 1949 and 1950. The abundance of chironomids increased at medium depths, that of oligochaetes became higher along the entire depth and that of Chaoborus remained the same. The community of Sergentia was replaced by that of Chironomus.
N. Yu. Sokolova, E. I. Izvekova
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Journal of Coastal Research, 2009
Abstract Benthic organisms and their communities are key components of estuarine systems. We provide an overview of the biology and key ecological features of benthic communities of York River Estuary (YRE), which is the site of the Chesapeake Bay National Estuarine Research Reserve in Virginia (CBNERRVA). Major subtidal benthic habitats in YRE include
Linda C. Schaffner, David J. Gillett
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Abstract Benthic organisms and their communities are key components of estuarine systems. We provide an overview of the biology and key ecological features of benthic communities of York River Estuary (YRE), which is the site of the Chesapeake Bay National Estuarine Research Reserve in Virginia (CBNERRVA). Major subtidal benthic habitats in YRE include
Linda C. Schaffner, David J. Gillett
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Oikos, 1977
Data on composition and distribution of the bottom fauna in a very acid lake (pH 3.9-4.6) in western Sweden are reported. In comparison with three other lakes with higher pH values the fauna is low in abundance with few taxa represented. The benthos is most similar to that of a typically polyhumic reference lake.
T. Wiederholm, L. Eriksson
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Data on composition and distribution of the bottom fauna in a very acid lake (pH 3.9-4.6) in western Sweden are reported. In comparison with three other lakes with higher pH values the fauna is low in abundance with few taxa represented. The benthos is most similar to that of a typically polyhumic reference lake.
T. Wiederholm, L. Eriksson
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The Deep Mediterranean Benthos
1985The Mediterranean Sea, where the religions, sciences and arts of the Western Europe were born, was also the site of the first explorations of the deep sea. Several historical syntheses have been published (Perrier, 1886; Rouch, 1946; Peres, 1961; Merriman, 1968), but it seems useful to underline some major scientific results and to pay a tribute to the
Lucien Laubier, Gaston Fredj
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Journal of the Fisheries Research Board of Canada, 1952
The bottom fauna of the deep water of Cultus Lake averages about 530 grams per square meter, dry weight, during the period January-May, and 720 in June-September. This is divided almost equally between Chironomidae and Oligochaeta, other organisms being negligible.
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The bottom fauna of the deep water of Cultus Lake averages about 530 grams per square meter, dry weight, during the period January-May, and 720 in June-September. This is divided almost equally between Chironomidae and Oligochaeta, other organisms being negligible.
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Extinction and Ecosystem Function in the Marine Benthos
Science, 2004Rapid changes in biodiversity are occurring globally, yet the ecological impacts of diversity loss are poorly understood. Here we use data from marine invertebrate communities to parameterize models that predict how extinctions will affect sediment bioturbation, a process vital to the persistence of aquatic communities.
Solan, M. +5 more
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1978
Investigations on the benthos in upwelling areas are briefly reviewed, with the main emphasis on standing stock studies. As expected, the benthic standing stock is high beneath highly productive surface waters. However, when the oxygen content of the near-bottom water is depleted by intensive degradation of organic matter, hydrogen sulfide may develop ...
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Investigations on the benthos in upwelling areas are briefly reviewed, with the main emphasis on standing stock studies. As expected, the benthic standing stock is high beneath highly productive surface waters. However, when the oxygen content of the near-bottom water is depleted by intensive degradation of organic matter, hydrogen sulfide may develop ...
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2013
Vom klassiscben Altertum bis zum Anfang des vorigen Jahrhunderts beschaftigte sich die Botanik fast ausschlieslich mit Landpflanzen. Zwar erwahnt schon THEOPHRASTOS mehrere Arten von Meeresalgen (Tangen) unter dem Namen φ\({\tilde\upsilon}\) koϚ(phӯkos), aber in den «Krauterbuchern» suchen wir vergeblich danach.
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Vom klassiscben Altertum bis zum Anfang des vorigen Jahrhunderts beschaftigte sich die Botanik fast ausschlieslich mit Landpflanzen. Zwar erwahnt schon THEOPHRASTOS mehrere Arten von Meeresalgen (Tangen) unter dem Namen φ\({\tilde\upsilon}\) koϚ(phӯkos), aber in den «Krauterbuchern» suchen wir vergeblich danach.
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The Supply of Food to the Benthos
1984The food supply of the bulk of the marine benthos is provided by the downward transport of organic matter produced by phytoplankton in the surface layer. The importance for the benthos of this vertical transfer of matter and energy from the pelagic to the benthic system has been recognised for a long time, although only recently has effort been devoted
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