نتایج جستجو برای: benthos
تعداد نتایج: 941 فیلتر نتایج به سال:
Coastal hypoxia (defined here as <1.42 ml L−1; 62.5μM; 2 mg L−1, approx. 30% oxygen saturation) develops seasonally in many estuaries, fjords, and along open coasts as a result of natural upwelling or from anthropogenic eutrophication induced by riverine nutrient inputs. Permanent hypoxia occurs naturally in some isolated seas and marine basins as well as in open slope oxygen minimum zones. Res...
Mid-water oxygen minima ( 0.5ml l 1 dissolved O2) intercept the continental margins along much of the eastern Pacific Ocean, off west Africa and in the Arabian Sea and Bay of Bengal, creating extensive stretches of sea floor exposed to permanent, severe oxygen depletion. These seafloor oxygen minimum zones (OMZs) typically occur at bathyal depths between 200m and 1000m, and are major sites of c...
Port activities such as ship traffic and dredging of port basin's sediment can impact biological communities the benthos, composition which remains unknown. Moreover, knowledge ivorian’s basin benthic fauna is concern to both scientists authorities in development their activities. This study carried out July December 2021, aimed provide first data on San-Pédro’s macroinvertebrates communities. ...
Parrotfish are fundamental species in controlling algal phase-shifts and ensuring the resilience of coral reefs. Nevertheless, little is known on their ecological role in the south-western Atlantic Ocean. The present study analysed the ontogenetic foraging activity and feeding selectivity of the Brazilian endemic parrotfish Scarus zelindae using behavioural observation and benthic composition a...
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