The benthic environment off Orange County Sanitation District's ocean outfall No. 2

Hardy, Robert A. (1973) The benthic environment off Orange County Sanitation District's ocean outfall No. 2. Long Beach, CA, California Department of Fish and Game, Marine Resources Region, (Marine Resources Administrative Report, 73-10)

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Abstract

During May and June, 1972, Department biologists made an ecological investigation in the vicinity of the discharge from Orange County Sanitation District off the mouth of the Santa Ana River. The survey consisted of 30 random benthic grab stations positioned within one mile of the discharge site, 8 bottom trawls, and underwater observations of the new and old discharge pipes. Abundance of polychaete worms in the grab samples indicates an area of enrichment adjacent to the diffuser in a northwest direction from the outfall. Trawl data show fish species composition and abundance comparable to previous monitoring surveys except for a high density at one station about one mile northwest of the outfall. Diving observations revealed normal biotic assemblages for this section of coast, however, previously noted growths of gorgonian corals at one station area were found in reduced numbers. (58pp.)

Item Type: Monograph or Serial Issue
Title: The benthic environment off Orange County Sanitation District's ocean outfall No. 2
Personal Creator/Author:
CreatorsEmail
Hardy, Robert A.
Series Name: Marine Resources Administrative Report
Number: 73-10
Date: 1973
Publisher: California Department of Fish and Game, Marine Resources Region
Place of Publication: Long Beach, CA
Issuing Agency: California Department of Fish and Game
Uncontrolled Keywords: Santa Ana River; California; outfalls; Orange County Sanitation District; benthos
Subjects: Ecology
Fisheries
Biology
Item ID: 139
Depositing User: Joan Parker
Date Deposited: 16 Aug 2007 19:44
Last Modified: 29 Sep 2011 22:32
URI: http://aquaticcommons.org/id/eprint/139

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