Phosphorus excretion by some zoobenthos in a eutrophic freshwater lake and its temperature dependency.
نویسندگان
چکیده
منابع مشابه
Phosphorus release by fish in relation to external and internal load in a eutrophic lake
The aim of this study was to compare the rate of phosphorus release from fish with estimates of external and internal load in the eutrophic Finjasjiin, Sweden. Phosphorus release from roach and bream, when fed either benthic (Chironomidae) or pelagic (Daphnia) prey, was measured in laboratory tanks. These results were transformed to whole lake conditions by using calculated fish consumption rat...
متن کاملOrganic phosphorus species in surface sediments of a large, shallow, eutrophic lake, Lake Taihu, China.
Organic phosphorus (P) fractions in surface sediments from a large shallow, eutrophic Lake Taihu, China, were extracted with 0.1 M NaOH after pre-treatment of the sediments with a solution composed of 0.1 M EDTA and 2% (w/v) Na(2)S(2)O(4). Composition of organic P in the extracts was then characterized by (31)P nuclear magnetic resonance spectroscopy ((31)P NMR). Several P species, including ph...
متن کاملActivity and Diversity of Methanotrophs in a Littoral Wetland of an Eutrophic Boreal Freshwater Lake
Most of methane (CH4) emitted from lakes may be derived from their littoral wetlands. In the surface layers of wetlands, aerobic CH4 oxidizing bacteria, known as methanotrophs, consume a large part of the CH4 produced in deeper anoxic layers, having thus major atmospheric importance. However, the characteristics of the methanotroph community and its capacity to withstand environmental changes i...
متن کاملDistribution and diversity of anaerobic ammonium oxidation (anammox) bacteria in the sediment of a eutrophic freshwater lake, Lake Kitaura, Japan.
Although the emission of N(2) via anaerobic ammonium oxidation (anammox) is a key process in the elimination of nitrogenous compounds from aquatic environments, little information is available regarding its significance and the relevant microorganisms (anammox bacteria) in eutrophic freshwater lakes. In the present study, the anammox bacteria in the sediment of a eutrophic lake in Japan, Lake K...
متن کاملDenitrification by sulfur-oxidizing bacteria in a eutrophic lake
Understanding the mechanistic controls of microbial denitrification is of central importance to both environmental microbiology and ecosystem ecology. Loss of nitrate (NO3) is often attributed to carbon-driven (heterotrophic) denitrification. However, denitrification can also be coupled to sulfur (S) oxidation by chemolithoautotrophic bacteria. In the present study, we used an in situ stable is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Limnology (Rikusuigaku Zasshi)
سال: 1985
ISSN: 0021-5104,1882-4897
DOI: 10.3739/rikusui.46.287