Compensatory mechanisms in fish populations: Literature reviews: Volume 2, Compensation in fish populations subject to catastrophic impact: Final report
This study comprises an extensive literature review, critical evaluations of case histories, and considered recommendations for future research on the mechanisms and extent of compensation by various fish species subject to catastrophic impacts. ''Catastrophic impact'' was defined as an event which removes some limitation (such as food or space) on a fish population. Those events studied included new species introduction, toxic spills, exploitation of specific fish populations, and drawdown. The fish studied each had more than one compensatory mechanism available, and thus were able to respond to a catastrophic event even if an option was removed. Predation, overfishing, competition, disease, and parasitism are all potential catastrophies, but were found not to cause a catastrophic impact (except in special cases). In general, compensatory responses were determined to vary widely, even for species which perform fairly similar functions in an ecosystem. The extensive nature of this study, however, pointed up the many data gaps in the existing literature; recommendations are therefore made for followup research and expansion of ongoing monitoring programs, based on an evaluation of their relative importance.
- Research Organization:
- Michigan Univ., Ann Arbor (USA). Great Lakes Research Div.; Electric Power Research Inst., Palo Alto, CA (USA)
- OSTI ID:
- 6585418
- Report Number(s):
- EPRI-EA-5200-Vol.2; ON: TI87920444
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
FISHES
POPULATION DYNAMICS
IMPINGEMENT
ENVIRONMENTAL IMPACTS
AQUATIC ECOSYSTEMS
BEHAVIOR
FOSSIL-FUEL POWER PLANTS
WATER QUALITY
ANIMALS
AQUATIC ORGANISMS
ECOSYSTEMS
ENVIRONMENTAL QUALITY
POWER PLANTS
THERMAL POWER PLANTS
VERTEBRATES
200201* - Fossil-Fueled Power Plants- Waste Management- Thermal Effluents
520500 - Environment
Aquatic- Site Resource & Use Studies- (-1989)
560100 - Biomedical Sciences
Applied Studies- Radiation Effects