Anoxic survival of Macoma balthica: the effect of antibiotics, molybdate and sulphide.

Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different f CO2 levels

Anthropogenic carbon dioxide (CO2) emissions are causing severe changes in the global inorganic carbon balance of the oceans. Associated ocean acidification is expected to pose a major threat to marine ecosystems worldwide, and it is also expected to be amplified in the Baltic Sea where the system is already exposed to relatively large natural seasonal and diel pH fluctuations. We studied the r...

Glacial refugium versus range limit: Conservation genetics of Macoma Balthica, a key species in the Bay of Biscay (France)

Effects of temporary food limitation on development and mortality of Macoma balthica larvae

Long-term observations (1973 to 2001) of populations of the intertidal bivalve Macoma balthica, in the western Wadden Sea, have suggested that larval mortality is strongly densitydependent. In addition, density-independent factors may affect larval mortality. One possible source for such an effect is food limitation. In laboratory experiments, M. balthica larvae were reared under food limiting ...

Benthic predator-prey interactions: evidence that adult Monoporeia affinis (Amphipoda) eat postlarval Macoma balthica (Bivalvia).

Predation by adults of the amphipod Monoporeia affinis on the plantigrade postlarval stage of the bivalve Macoma balthica was studied in the laboratory. We confirmed that M. affinis consumes small M. balthica. Amphipods offered 14C-labelled postlarvae took up the radioactive tracer, while those presented Rhodamine B-stained postlarvae acquired gut contents fluorescing strongly in orange, wherea...

Effects of Reduced pH on Macoma balthica Larvae from a System with Naturally Fluctuating pH-Dynamics

Ocean acidification is causing severe changes in the inorganic carbon balance of the oceans. The pH conditions predicted for the future oceans are, however, already regularly occurring in the Baltic Sea, and the system might thus work as an analogue for future ocean acidification scenarios. The characteristics of the Baltic Sea with low buffering capacity and large natural pH fluctuations, in c...