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A comparative study of decomposition, oxygen consumption and nutrient release for selected aquatic plants occurring in an estuarine environment
The rank in decomposition rates based on both decrease in original mass and associated oxygen consumption was phytoplankton > macroalga > submersed macrophytes > emergent macrophyte, and rates were directly proportional to the initial nitrogen content of the plant tissues.
Uptake of sedimentary organic matter by the deposit-feeding baltic amphipods Monoporeia affinis and Pontoporeia femorata
Children of both species had similar tracer uptake and fed both on surface and subsurface sediment, suggesting greater potential for interspecific food competition in juveniles than in adults, and Juveniles of both Species had higher mass-specific 14 C uptake than adults.
Comparing rate and depth of feeding in benthic deposit-feeders: a test on two amphipods, Monoporeia affinis (Lindström) and Pontoporeia femorata Kröyer
Predation by the benthic isopod Saduria entomon on two Baltic Sea deposit-feeders, the amphipod Monoporeia affinis and the bivalve Macoma balthica
Predation on newly settled bivalves by deposit-feeding amphipods: a Baltic Sea case study
The results confirm the effect of the amphipods on M. balthica postlarvae and their role in controlling bivalve recruitment in Baltic soft sediments and support the idea that interactions among juveniles of macrofauna may affect the recruitment success of many benthic specles and therefore be important in structuring benthIC communities.
Predation on the bivalve Macoma balthica by the sopod Saduria entomon: laboratory and field experiments
The impact of the predatory isopod Saduria entomon (L.) on the bivalve Macoma balthica was studied in parallel in the laboratory and the field and revealed that S. entomon affects the recruiting macrofauna significantly.
Behavioural responses to chemical cues of predation risk in a three-trophic-level Baltic Sea food chain
- G. Ejdung
- Environmental Science
- 7 May 1998
Behavioural responses of 2 Baltic benthic crustaceans to chemical substances from predators were studied using infrared video-recording in the laboratory. This is the f~rs t study of behavioural…
Uptake of diatoms in Baltic Sea macrozoobenthos during short-term exposure to severe and moderate hypoxia
The hypothesis was that low oxygen concentrations negatively affect feed- ing at oxygen levels that have little effect on the studied animals' survival, and the amphipods were the most sensitive to week-long oxygen deficiency.
Daily activity pattern of the sand goby, Pomatoschistus minutus (Pisces), at low light intensity
The activity of P. minutus in autumn is studied using video recordings in the laboratory, under light (1.5–2 lux) and temperature conditions prevailing at ca.
Intraspecific food competition in the deposit-feeding benthic amphipod Monoporeia affinis— a laboratory study
Testing the density-dependence of growth in M. affinis demonstrated that growth depression at high density was primarily due to food limitation and not to crowding as such.