Results 101 to 110 of about 203,020 (279)
THE TROPHIC STATE CONCEPT: A LAKE MANAGEMENT PERSPECTIVE [PDF]
ABSTRACT Trophic state is fast becoming a nonconcept because of the confusion over its proper definition. The lack of agreement to trophic definition stems from its early typological origins, the fusion of causal factors with the resulting biological condition, and the assumption of the complex nature of the concept.
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We describe the functional anatomy of masticatory muscles in nine opossums, finding a generalized anatomical pattern with differences related to skull morphology. Variation in quantitative myological data and estimated bite force was mostly related to size, and the increase in bite force supports dietary diversification associated with size increase ...
Juann A. F. H. Abreu, Diego Astúa
wiley +1 more source
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano +5 more
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Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
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Measurements of bacterial secondary production (BSP), together with primary phytoplanktonic production (PPP) were conducted during dry and rainy seasons, in eight rivers of different orders submitted to different degrees of human impacts (different ...
Mauricio Mello Petrucio +2 more
doaj +1 more source
Application of LANDSAT to the surveillance of lake eutrophication in the Great Lakes basin [PDF]
The author has identified the following significant results. A step-by-step procedure for establishing and monitoring the trophic status of inland lakes with the use of LANDSAT data, surface sampling, laboratory analysis, and aerial observations were ...
Adams, M. S. +5 more
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Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
Trophic state and potential productivity assessment for Qaroun Lake using spatial techniques. [PDF]
Mohamed HM +5 more
europepmc +1 more source
Evaluation of trophic state of Lake Uluabat, Turkey.
Lake Uluabat, which is located in Marmara region, is one of the most productive lakes in Turkey. Due to concerns about potential pollution resulting from watershed sources and adjacent agricultural lands, a study of the trophic state of lake Uluabat was conducted during the period February 2003 to January 2004. Total nitrogen (TN), total phosphorus (TP)
Topaç Şağban, Fatma Olcay +4 more
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The plankton and trophic state of Lushui Reservoir
The plankton and hydrochemistry are surveyed in Lushui Reservoir. Hubei Province from January to December. 1991. The results show that there are 118 genera of phytoplanktion and 198 species of zooplankton. The average density of phytoplankton and zooplankton is 3. 1449 ×10~5 cell/L and 2323. 8 ind. /L respectively and the average biomass 1.
Han Deju +4 more
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