نتایج جستجو برای: benthic organisms
تعداد نتایج: 103260 فیلتر نتایج به سال:
The California Current Large Marine Ecosystem (CCLME), a temperate marine region dominated by episodic upwelling, is predicted to experience rapid environmental change in the future due to ocean acidification. The aragonite saturation state within the California Current System is predicted to decrease in the future with near-permanent undersaturation conditions expected by the year 2050. Thus, ...
Benthic macro-invertebrates are important components of freshwater ecosystems which are involved in ecological processes such as energy transfer between detritus and consumers and organic matter recycling. The aim of this work was to investigate the variation in organism richness, diversity and density of benthic fauna during the annual cycle in Camargo Lake, a lake marginal to Paranapanema Riv...
Quantitative assessment of planktonic organisms is a key issue in understanding biodiversity, biomass, and carbon fluxes marine ecosystems during the ongoing Anthropocene. However, implications choice plankton sampling equipment tropical have not been fully addressed. The goal this study was to investigate abundance diversity copepods derived from two different mesh sizes, 120 300 μm, determine...
In order to get to know the habitat and feeding habits of Mugil liza on the southern coast of Buenos Aires province, 65 specimens obtained at two sampling sites the San Blas bay (SBB) and the mouth of the Quequén-Salado river (QSR) during spring (November 2012) and summer (February 2013) were analyzed. Specimens were measured, sexed and weighed, their stomachs were removed and their stomach con...
Polychaetes inhabiting deep-sea soft bottoms from the southeastern Gulf of California were collected during four oceanographic cruises during 2000 and 2001. Sampling of benthic organisms was performed with a benthic sledge to collect epifauna and a Karling dredge for epifauna and infauna, in a depth range from 732 to 2 250 m. A list of the polychaetes that were collected and their distribution ...
Advanced analytical techniques have identified the heterogeneity of sediments in aquatic environments which may impact the exposure of benthic organisms to contaminants. Acute and chronic toxicity associated with short, intermittent exposure to four field-collected contaminated sediments were assessed for the epi-benthic amphipod Melita plumulosa and the harpacticoid copepod Nitocra spinipes. I...
Variation in elemental stoichiometry and RNA:DNA in four phyla of benthic organisms from coral reefs
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