Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of Naknek River System, Alaska
Wallace RL. 1969. Some aspects of the comparative ecology of fishes associated with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), in the lakes of Naknek River System, Alaska. Oregon State University
A study of the distribution, relative abundance, and diet of fishes sympatric with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), within the freshwater nursery areas of the Naknek River system were undertaken from 1961 to 1963. The study was part of an extensive investigation to determine what factors in the freshwater environment were limiting the size of the populations of sockeye salmon returning to the rivers of Bristol Bay, Alaska. The species found associated with juvenile salmon in the limnetic zones of Naknek system were the pond smelt, Hypomeusus olidus (Pallas); the least cisco, Coregonus sardinella (Valenciennes); the threespine stickleback, Gasterosteus aculeatus (Linnaeus); and the ninespine stickleback, Pungitius pungitius (Linnaeus). Life history information was collected for these sympatric species. Tow nets were used to capture samples of fish from limnetic portions of the nursery areas. Some samples were collected by beach seines, lake traps and otter trawls. Plankton samples were collected and compared to the diets of the limnetic fishes. [abstract continues...]
- Type
- Academic
- Authors
- Wallace, Richard
- Date of Issue
- 1969-06
- Publisher
- Oregon State University
- Units
- KATM , SWAN
- Keywords
- Abundance, American Creek, Bristol Bay, Brooks Lake, Coregonus sardinella, Dissertation, Distribution, Ecology, Fishes, Gasterosteus aculeatus, Grosvenor Lake, Hypomesus olidus, Idavain Lake, Iliuk Arm, Lake Coville, Least cisco, Naknek Lake, Naknek river, ninespine stickleback, Oncorhynchus nerka, pond smelt, Pungitius pungitius, Salmon, Savonoski River, Sockeye Salmon, threespine stickleback