Recruitment of pelagic fish in an unstable climate: studies in Sweden's four largest lakes

Article Abstract:

Research indicates that pelagic fish that spawn during the autumn will have more difficulties adapting to environmental conditions produced by global warming. Categories of comparison to other fish species include growth seasons, lake eutrophication levels, predation impact, and plankton abundance. Data were obtained from studies on the Swedish lakes Malaren, Hjalmaren, Vanern, and Vattern.

Growth, Fishes, Morphology (Animals), Animal morphology

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Warmer winters: are planktonic algal populations in Sweden's largest lakes affected?

Article Abstract:

Plankton population levels are compared for the Swedish lakes Malaren, Vanern, and Vattern. Warmer winters have resulted in an earlier start for spring phytoplankton growth, and significant increases for chlorophyte and cyanobacteria groups. This latter group can be toxic, which may have a dramatic and negative impact on the lakes' ecosystems.

Analysis, Plankton research, Plankton populations

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Human impact on the fish diversity in the four largest lakes of Sweden

Article Abstract:

The article examines significant changes in fish community structures within the Swedish lakes Hjalmaren, Malaren, Vattern and Vanern. These changes are primarily the result of anthropogenic interference, specifically eutrophication linked to overfishing and the construction of canals and dams.

Human beings, Human-environment interactions, Fishery management

Similar abstracts:

• Abstracts: Recovery from eutrophication: experiences of reduced phosphorus input to the four largest lakes of Sweden. Phosphorus in tributaries to Lake Malaren, Sweden: analytical fractions, anthropogenic contribution and bioavailability
• Abstracts: Mercury in sediment and fish communities of Lake Vanern, Sweden: recovery from contamination. Macrophyte development and habitat characteristics in Sweden's large lakes

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