Trident Biological Survey PDF Download

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Category : Marine animals
Languages : en
Pages : 62

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Book Description
This report describes the results of a marine biological survey conducted in July 1976 at Bangor Annex (Hood Canal) of the Naval Torpedo Station, Keyport, Washington. The purpose was to assess the marine environmental effects of the early stages of construction of the Trident Submarine Support Facility. Data on environmental conditions at Bangor Annex before the beginning of construction were available from five previous surveys conducted between June 1973 and July 1975. The 1976 survey showed that clam abundance at each of seven stations remained relatively constant. Newly settled native littleneck clams, butter clams, and basket cockles were present in significant number at several stations, though success in reaching adult size varied from station to station. Oyster condition values of 1976 were similar to those of 1975 and indicated that no significant change in environmental quality had occurred. The byssal thread production rates of bay mussels also indicated that environmental conditions in 1976 were relatively unchanged. Otter trawl sampling at eight stations collected representatives of fourteen species of marine fishes and showed the fish population to be diverse, reproducing in significant numbers, and free of outward signs of environmental stress. The condition of eelgrass beds and piling communities also showed no signs of environmental stress at the time of the survey. It is recommended that biological surveys continue to be made as construction of the support facility proceeds. (Author).