Size and temperature dependent foraging capacities and metabolism: Consequences for winter starvation mortality in fish
Article Abstract:
The size-dependent foraging rates and critical resource density (CRD) in small Arctic char (Salvelinus alpinus) are estimated under winter conditions. The negative size-dependent winter mortality from starvation is indicated to be more pronounced in species that are not adapted to feed at low temperatures and in species feeding on zooplankton, since zooplankton abundance, in contrast to macroinvertebrate abundance, is generally low during winter.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Trophic dynamics in a whole lake experiment: size-structured interactions and recruitment variation
Article Abstract:
The recruitment variation, size-dependent interactions and trophic dynamics in whole lake experiment are discussed. The effects of introducing roach on phytoplankton are examined and it was found that roach could affect the phytoplankton dynamics in the treatment lakes in three ways.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
Size-dependent resource limitation and foraging-predation risk trade-offs: growth and habitat use in young arctic char
Article Abstract:
The field data on the growth and habitat use of young-of-the-year (YOY) arctic char (Salvelinus alpinus) from three small mountain lakes is discussed. The extent of resource limitation of young-of-the-year (YOY) and 1-year old char is examined.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Light dependent shift in the anti-predator response of a pyralid moth. Foraging and mate-finding in the silver Y moth, Autographa gamma (Lepidoptera: Noctuidae) under the risk of predation
- Abstracts: Landscape-dependent response to predation risk by forest birds. Food hoarding behaviour of black-capped chickadees (Poecile atricapillus) in relation to forest edges
- Abstracts: Win-win opportunities and environmental regulation: testing of porter hypothesis for Indian manufacturing industries
- Abstracts: International trade and air pollution: Estimating the economic costs of air emissions from waterborne commerce vessels in the United States
- Abstracts: Masting in Buxus balearica: Assessing fruiting patterns and processes at a large spatial scale. Onset of reproduction in Rhododendron lapponicum shoots: the effect of shoot size, age, and nutrient status at two subarctic sites