Seabird, marine mammal and oceanography coordinated investigations in Sitka Sound, Alaska, July 2000
Piatt JF and Dragoo D. 2000. Seabird, marine mammal and oceanography coordinated investigations in Sitka Sound, Alaska, July 2000. Anchorage, AK
Surveys for seabirds and marine mammals were conducted in Sitka Sound from the M/V Tiglax during July 12-16, 2000. The objective was to characterize the marine environment in the vicinity of St. Lazaria Island, one of nine seabird colonies monitored annually by the Alaska Maritime National Wildlife Refuge. In addition to censusing seabirds and mammals encountered on line transects, local oceanography was characterized by measuring water temperature and salinity continuously at the sea surface, and by taking profiles of the water column on a series of CTD transects. Zooplankton were sampled at the surface (neuston tows) and with vertical tows along one transect. The relative abundance of zooplankton and fish biomass was measured using a dual-frequency echosounder. Significant acoustic targets were sampled with a mid-water trawl net. Long-lines were set twice to catch and characterize diets of large demersal fish species.
- Type
- Unpublished Report
- Authors
- Piatt, J; Dragoo, D
- Date of Issue
- 2000
- Units
- SITK
- Keywords
- Biological Survey, Coastal/Marine Systems, Marine Ecology, Marine Mammal, Oceanography, Seabirds, Sitka Sound, St. Lazaria Island, Water Temperature