نتایج جستجو برای: oxbow lake
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We present results from a palaeoecological analysis conducted on deposits accumulated in an oxbow lake of the Prosna River (Poland), next to Grodzisko fortified settlement. Palaeobotanical and geochemical analyses—supported by radiocarbon dating—were performed (i) reconstruct palaeoenvironmental conditions its surrounding area; (ii) determine beginning human activity settlement vicinity; (iii) ...
Background: Oxbow lakes are abundant in indigenous fishes, but they are subject to unsustainable fishing practices, potential overexploitation, and indiscriminate use of fine-meshed fishing gear. To quantify the catch per unit effort (CPUE) and impact of fishing gears on fish abundance, a survey was carried out in an oxbow lake in eastern India. Methods: The gear-wise CPUE for fish caught in...
Jones, J.R. and M.F. Knowlton. 2005. Chlorophyll response to nutrients and non-algal seston in Missouri reservoirs and oxbow lakes. Lake and Reserv. Manage. Vol 21(3):361-371. When unaggregated summer chlorophyll data (Chl) from 184 Missouri reservoirs are plotted against total phosphorus (TP) a ‘bow’ in the distribution develops among a group of points with low Chl:TP ratios (averaging <0.05)....
The present study was conducted to know the biodiversity status and assess existing livelihood conditions of fishers Habullah Baor at Bagherpara upazila, Jashore district from November 2017 April 2018. Sixty fishermen were randomly selected for collecting data through a semi structured questionnaire. current discovered that there 11 different fish species six orders seven families in baor. All ...
—Three oxbow lakes with different connection frequencies and an adjacent reach of the middle Brazos River, Texas, were surveyed quarterly from summer 1993 to summer 1996 to examine the effects of hydrology and physicochemical attributes on fish assemblage structure. During flood events, oxbows usually were colonized by about 20 fish species from the river channel, and several fluvial specialist...
Cladocerans are biological indicators of environmental changes. Their remains provide information on past changes in lake environments. We studied the correspondence between contemporary Cladocera assemblages and their subfossil from an oxbow lake. sought to demonstrate that there were differences among various sites with different utilization based physical–chemical variables. The lake’s two s...
Algal carbon has been increasingly recognized as the primary carbon source supporting large-river food webs; however, many of the studies that support this contention have focused on lotic main channels during low-flow periods. The flow variability and habitat-heterogeneity characteristic of these systems has the potential to significantly influence food web structure and must be integrated int...
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