Results 221 to 230 of about 3,963 (245)

Invertebrate drift: Behavioral experiments with intertidal meiobenthos†

Marine Behaviour and Physiology, 1984
Water column drift of benthic invertebrates may be the result of either active migration from the bottom or of erosion by water currents. Recent studies have shown that marine meiobenthos occur regularly in the water column; however, whether this is due to active (behavioral) processes or passive (erosional) processes is not known.
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An improved detritus-sledge for collecting meiobenthos

Ophelia, 1964
Abstract A simple detritus-sledge for collecting animals of the meio- and small macrobenthos from level sea-bottoms is described and figured. Its high degree of efficiency - due to a chain which stirs up the surface of the bottom ahead of the net-opening - is exemplified.
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Hydrodynamic factors affecting behaviour of intertidal meiobenthos

Ophelia, 1988
Abstract Intertidal meiobenthos may actively emerge from the sediment and enter the water column. Changing hydrostatic pressure and the dimensions of the water column in laboratory experiments did not affect the meiobenthic emergence pattern. Varying current speed in laboratory flumes significantly changed the abundance of Copepoda, Plathelminthes, and
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Unpacking effects of multiple stressors on estuarine meiobenthos

2022
Estuaries are increasingly exposed to a multitude of stressors, introduced by anthropogenic activities. Although these stressors often overlap in time and space, ecological studies predominantly consider their impacts in isolation of one another, and often through highly contrived experiments in the laboratory.
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Deficiency of Gravity Corers for sampling Meiobenthos and Sediments

Nature, 1971
GRAVITY corers are widely used1,2 for the collection of the smallest marine metazoans (meiofauna) from subtidal grounds, and it has been generally accepted that cores which appear undisturbed give reasonably representative samples. But, after comparing gravity cores with samples collected by SCUBA divers, I suggest that this is not so.
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The role of meiobenthos in lake ecosystems

Aquatic Ecology, 2002
It is shown that meiobenthos plays an important role in the secondary production by zoobenthos in lakes, as well as in the degradation of organic matter. In large lakes (Lake Ladoga, Lake Onega, Lake Paijanne, Lake Constance), the ratio of meiobenthic production to the production of macrobenthos is on average 50–61%.
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Metazoan meiobenthos along continental margins: a review

Progress in Oceanography, 2000
The sediment-inhabiting meiofauna is a major component of benthic ecosystems, particularly in the deep sea. Knowledge on the deep-sea meiobenthos has increased considerably during recent decades, and attempts have been made to relate standing stocks with various environmental factors. The flux of organic matter from surface productivity to the seafloor
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Future Trend Lines in Ecological Meiobenthos Research

2019
In a world where human activities increasingly constrict, fragment and destroy natural habitats and threaten its animate nature, the study of ecosystem stability and resilience is becoming a dominant research discipline. Patterns of distribution, species interactions and modes of recolonization are underlying keys for our understanding of the dynamics ...
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Bioturbation of Superficial Marine Sediments by Interstitial Meiobenthos

Nature, 1973
IN a recently completed series of laboratory studies, lebensspuren were produced by individual macrobenthic organisms on a variety of marine sand and mud substrates (freshly collected from depths down to 30 m in the Bristol Channel), from which all other macrofauna had been removed by passing it through a 1.0 mm mesh.
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Meiobenthos

2022
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