Accession Number : ADA184926

Title :   Benthic Resources Assessment Technique Evaluation of Disposal Sites in Puget Sound and Adjacent Waters,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Personal Author(s) : Clarke, Douglas G

PDF Url : ADA184926

Report Date : Dec 1986

Pagination or Media Count : 83

Abstract : This evaluation, based on samples taken in June and July, 1986 at 4 study areas (Commencement Bay, Elliott Bay, Port Gardner, and Saratoga Passage), provides comparative assessments of benthic habitat quality at the study areas in terms of potential trophic support for bottom-feeding fishes. The results of this study are particularly relevant to use of the proposed sites by Dover and English soles. Study findings include: 1) Taxonomic composition (at the Order level) of the benthos was essentially similar among all study sites. 2) With regard to total benthic biomass, Alternative sites at Commencement Bay, Elliott Bay, and Port Gardner had consistently higher standing crops of benthos than the respective Primary Sites (although the absolute differences were not striking). 3) Vertical distribution of benethic biomass in the sediment column down to 15 cm was quite similar among all Commencement Bay, Elliott Bay, and Port Gardner sites. Relatively high biomass values were found for the uppermost(0-2 cm) sediment depth zone at both the Elliott Bay and Port Gardner Alternative Disposal Sites. 4) estimates of trophic support potential generally corresponded with total benthic biomass measurements at the various study sites.

Descriptors :   *MARINE BIOLOGY, HABITATS, BENTHONIC ZONES, PUGET SOUND, FISHES, POLYCHAETA, PELECYPODA, BOTTOM, SEDIMENTS, QUALITY, WASTE DISPOSAL, OPEN WATER, DREDGED MATERIALS

Subject Categories : Biological Oceanography
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE