نتایج جستجو برای: macrobenthos community
تعداد نتایج: 364617 فیلتر نتایج به سال:
Biological particle mixing (bioturbation) and solute transfer (bio-irrigation) contribute extensively to ecosystem functioning in sediments where physical mixing is low. Macrobenthos transports oxygen and organic matter deeper into the sediment, thereby likely providing favourable niches to lower trophic levels (i.e., smaller benthic animals such as meiofauna and bacteria) and thus stimulating ...
The present work has been carried out to investigate the probable effects of fish cage culture on benthic communities as a pollution and stress indicator and to evaluate the biotic health condition using BOPA index, in Ghazale Creek (Khowre-Mussa - Persian Gulf). Monthly sampling from 4 stations was carried out from June 2007 to March 2008 (during nine months). Stations were selected from unde...
To estimate the biomass and secondary production of macrobenthos in Khore-e-Mousa creeks, 216 sediment samples were taken. The sampling period started in 1996 and terminated in 1997. A bimonthly sampling strategy was adopted. The samples were taken by Van-Veen grab (0.1 m2) from the beginning, middle and end of each creek (Khor). To estimate the biomass of the macrobenthos, the Crisp method (19...
Recurrent jellyfish blooms in the coastal zone call for understanding impacts of jelly-falls on functioning benthic communities, especially shallow enclosed ecosystems where their biomass can affect local carbon cycling and productivity. Each year, Aurelia coerulea appear collapse a semi-enclosed Mediterranean lagoon (the Thau lagoon, south France). Although is shallow, large accumulations dead...
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