LIFE-HISTORY ORGANIZATION OF YELLOWSTONE CUTTHROAT TROUT (ONCORHYNCHUS-CLARKI-BOUVIERI) IN YELLOWSTONE LAKE

被引:61
作者
GRESSWELL, RE [1 ]
LISS, WJ [1 ]
LARSON, GL [1 ]
机构
[1] OREGON STATE UNIV, COLL FORESTRY, NATL BIOL SURVEY, CORVALLIS, OR 97331 USA
关键词
D O I
10.1139/f94-317
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Life-history organization of the cutthroat trout (Oncorhynchus clarki) may be viewed at Various levels, including species, subspecies, metapopulation, population, or individual. Each level varies in spatial scale and temporal persistence, and components at each level continually change with changes in environment. Cutthroat trout are widely distributed throughout the western United States, occurring in such diverse environments as coastal rivers of the Pacific Northwest and interior streams of the Great Basin. During its evolution the species has organized into 14 subspecies with many different life-history characteristics and habitat requirements. Within subspecies, organization is equally complex. For example, life-history traits, such as average size and age, migration strategy, and migration timing, vary among individual spawning populations of Yellowstone cutthroat trout (Oncorhynchus clarki bouvieri) in tributary streams of Yellowstone Lake. Understanding the effects of human perturbations on life-history organization is critical for management of the cutthroat trout and other polytypic salmonid species. Loss of diversity at any hierarchical level jeopardizes the long-term ability of the species to adapt to changing environments, and it may also lead to increased fluctuations in abundance and yield and increase the risk of extinction.
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页码:298 / 309
页数:12
相关论文
共 98 条
[1]  
ALLENDORF F W, 1988, Conservation Biology, V2, P170, DOI 10.1111/j.1523-1739.1988.tb00168.x
[2]  
Bagenal T.B., 1978, P75
[3]  
BALL OP, 1961, US FISH WILDL SERV R, V55
[4]  
BALL OP, 1955, P UTAH ACAD SCI ARTS, V32, P75
[5]   ADAPTIVE VARIATION IN BODY SIZE, AGE, MORPHOLOGY, EGG SIZE, AND DEVELOPMENTAL BIOLOGY OF CHUM SALMON (ONCORHYNCHUS-KETA) IN BRITISH-COLUMBIA [J].
BEACHAM, TD ;
MURRAY, CB .
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 1987, 44 (02) :244-261
[6]  
BEACHAM TD, 1984, T AM FISH SOC, V113, P727, DOI 10.1577/1548-8659(1984)113<727:AAMOCS>2.0.CO
[7]  
2
[8]  
BEHNKE RJ, 1988, AM FISHERIES SOC S, V4, P1
[9]  
BENSON NG, 1961, US FISH WILDL SERV R, V56
[10]  
BENSON NG, 1963, US FISH WILDL SERV R, V62