1994 SCBPP Benthic Trawl Invertebrates

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

Southern California Coastal Water Research Project (SCCWRP)

Publication_Date: 20040402

Publication_Time: 20000402

Title: 1994 SCBPP Benthic Trawl Invertebrates

Edition: 1.0

Publication_Information:

Publication_Place: Costa Mesa, California

Publisher:

Southern California Coastal Water Research Project (SCCWRP)

Online_Linkage:

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Description:

Abstract:

The 1994 Southern California Bight Pilot Project (SCBPP) was a cooperative sampling effort, conducted in the summer of 1994, that was designed to provide synoptic information about the ecological condition of benthic communities in the area between Point Conception and the Mexican Border from 10 to 200 meters. The sampling design was based on concepts (Overton et al. 1990, Stevens 1994) developed by the EPA's Environmental Monitoring and Assessment Program (EMAP). EMAP sampling is based on a randomly-placed, triangular grid of points covering the coterminus United States and associated coastal waters. The interpoint distance for the EMAP grid is approximately 27 km (White et al. 1992), but the interpoint distance can be adjusted as needed for a particular sampling design. With this samping design, each sampling point represents a known area so that it is possible to use the data to estimate the amount of area with a particular characteristic, e.g., the area with total organic carbon greater than 2%. For the SCBPP, the study area was divided into subpopulations of interest, including: (1) three geographic zones (north= Pt. Conception to Pt. Dume, central= Pt. Dume to Dana Point, and south= Dana Point to the U.S Border); (2) three depth zones (shallow= 10-25 m, mid-depth= 25-100 m, and deep= 100-200 m); (3) the areas around the four largest municipal waste water outfalls, treated cumulatively; (4) the areas within 3 km of the 11 largest rivers and storm drains, treated cumulatively; (5) Santa Monica Bay; and (6) the area around the Hyperion 5-mile outfall. The geographic and depth zones were chosen to allow the assesment of the effect of depth and latitude on parameters; the outfall and river zones were chosen to allow assessment of point and non-point sources, respectively. Inorder to have approximately 40 samples per subpopulation, the spacing of the grid was decreased in certain areas. Then stations were chosen by randomly selecting grid points and randomly placing the station around the grid point. Parameters measured inlcuded water quality (DO, temperature, salinity, and transmissivity), benthic invertabrete and fish assemblages, sediment characteristics (grain size, total organic carbon and nitrogen, trace metals, PAH's, PCB's and pesticides), sediment toxicity, PCB's and DDT's in fish tissue and marine debris.

Purpose:

The 1994 Southern California Bight Pilot Project was coducted to provide information about the ecological condition of benthic communities in the Southern California Bight.

Supplemental_Information:

Lognumbers were encoded in the following manner: Digit ______ 1 - P for SCBPP sample Q for Quality Assurance sample 2 to 3- Agency collecting the sample 4 to 5- Type of data (OR = Organics, MT = Metals) 6 to 9- Station number 0000 if instrument blank CRM0 if certified reference material LCM0 if laboratory control material MS00 if matrix spike 10 - Sampling Replicate number (0 or 1) Cumulative batch number if QA Sample.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19940715

Ending_Date: 19941015

Currentness_Reference: ground condition

Status:

Progress: COMPLETE

Maintenance_and_Update_Frequency: As Needed

Spatial_Domain:

Description_of_Geographic_Extent: Southern California Bight

Bounding_Coordinates:

West_Bounding_Coordinate: -117.1608

East_Bounding_Coordinate: -120.4267

North_Bounding_Coordinate: 34.6133

South_Bounding_Coordinate: 32.5365

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Southern California Bight

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Information Systems Manager

Contact_Address:

Address_Type: physical address

Address: 3535 Harbor Blvd., Suite 110

City: Costa Mesa

State_or_Province: California

Postal_Code: 92626

Country: USA

Contact_Voice_Telephone: 714.755.3200

Contact_Facsimile_Telephone: 714.438.1016

Contact_Electronic_Mail_Address: im_contact@sccwrp.org

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: email preferred

Data_Set_Credit: SCCWRP

Native_Data_Set_Environment: Microsoft Access Version 2000