Dungeness crab survey for the Southwest Ocean Disposal Site off Grays Harbor, Washington, June 1990
- Battelle/Marine Sciences Lab., Sequim, WA (United States)
As part of the Grays Harbor Navigation Improvement Project, the Seattle District of the US Army Corps of Engineers has begun active use of the Southwest Ocean Disposal Site off Grays Harbor, Washington. This survey was to verify that the location of the area of high crab density observed during site selection surveys has not shifted into the Southeast Ocean Disposal Site. In June 1990, mean densities of juvenile Dungeness crab were 146 crab/ha within the disposal site and 609 crab/ha outside ad north of the disposal site. At nearshore locations outside the disposal site, juvenile crab density was 3275 crab/ha. Despite the low overall abundance, the spatial distribution of crab was such that the high crab densities in 1990 have remained outside the Southwest Ocean Disposal Site. The survey data have confirmed the appropriateness of the initial selection of the disposal site boundaries and indicated no need to move to the second monitoring tier. 8 refs., 9 figs., 2 tabs.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOD; Department of Defense, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5268562
- Report Number(s):
- PNL-7790; ON: DE92000165
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dungeness crab survey for the Southwest Ocean Disposal Site and addtiional sites off Grays Harbor, Washington, June 1991
Dungeness crab and razor clam surveys at sites near Grays Harbor, Washington, and at Willapa Bay bar entrance, September 1993
Related Subjects
59 BASIC BIOLOGICAL SCIENCES
58 GEOSCIENCES
CRABS
POPULATION DENSITY
DREDGE SPOIL
ENVIRONMENTAL EFFECTS
MARINE DISPOSAL
AQUATIC ECOSYSTEMS
COMPILED DATA
DREDGING
JUVENILES
MEASURING METHODS
OCEANOGRAPHY
POPULATION DYNAMICS
SEASONAL VARIATIONS
SEDIMENTS
SPECIES DIVERSITY
WASHINGTON
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
CRUSTACEANS
DATA
DECAPODS
DEVELOPED COUNTRIES
ECOSYSTEMS
FEDERAL REGION X
INFORMATION
INVERTEBRATES
MANAGEMENT
NORTH AMERICA
NUMERICAL DATA
USA
VARIATIONS
WASTE DISPOSAL
WASTE MANAGEMENT
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
550400 - Genetics
580000 - Geosciences
550100 - Behavioral Biology