Dataset: Sediment fauna and plastic

Name: Sedimentary benthic fauna and plastic abundance at the Carlsbad Desalination Plant, Southern California 2014-2016 (Effluent Impacts on Coastal Ecology project)
Published: 2017-10-04
Keywords: biota, oceans

Cite This Dataset

Spatial Extent: N:33.1459 E:-117.336641 S:33.1355 W:-117.35295

Temporal Extent: 2014-12-01 - 2016-11-30

Project:

Brine Discharge From Desalination Plants - Impacts On Coastal Ecology, Public Perception, and Public Policy (Effluent Impacts on Coastal Ecology)

Principal Investigator:

Adina Paytan (University of California-Santa Cruz, UCSC)

Co-Principal Investigator:

Dr Brent Haddad (University of California-Santa Cruz, UCSC)

Dr Donald Potts (University of California-Santa Cruz, UCSC)

Student:

Ms Karen Lykkebo Petersen (University of California-Santa Cruz, UCSC)

Contact:

Ms Karen Lykkebo Petersen (University of California-Santa Cruz, UCSC)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2017-10-04

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Sedimentary benthic fauna and plastic abundance at the Carlsbad Desalination Plant, Southern California 2014-2016 (Effluent Impacts on Coastal Ecology project)

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Description

This dataset contains the total count of benthic Annelida and Crustaceans and of plastic pieces, normalized to the volume of sediment collected at the Carlsbad Desalination Plant, obtained in December 2014, Sept. 2015, May 2016 and November 2016.

Methods & Sampling

Samples were collected in a perimeter of ~1 km offshore of the discharge channel of Carlsbad Desalination Plant, Carlsbad Beach, California (33°08'18.9"N 117°20'21.3"W).

Samples were collected in four trips:
Pre-discharge: Dec 2nd-4th 2014 and Sep 21st-24th 2015.
Post-discharge: May 9th-12th 2016 and Nov 8th-11th 2016

Transect lines were deployed going from the discharge channel (Outflow) and the Intake to 1000 m offshore. Sampling was done every 25 m until 200 m offshore, then at 400, 600, 800 and 1000 m (“stations”). The "Parallel" transect ran continuous parallel to the beach ~200 m offshore and samples stations were deployed every ~100 m. Station 1 is the southern-most sampling point (south of discharge channel). At each station surface (~1 m depth) and bottom water samples were taken and a sediment sample. Bottom samples were collected at a depth range of 4m - 17m.

The benthic surveys were done continuously at the first 200 m offshore if water conditions allowed. At station 400, 600, 800 and 1000 and on the parallel stations, ten 1x1m quadrates were deployed.

Sediment analysis: 300-500 g of sediment was collected at certain stations. The sediment was kept at -20 degrees C. Upon analysis, the sediment was thawed and rinsed in 90% ethanol.

The ethanol was obtained and surveyed through a microscope to count the organisms present. The counted individuals were summed and normalized to the weight of the sample.

The sediment was dried and weighed and the grain size analyzed through sieving.

Data Processing Description

BCO-DMO Processing:
- added conventional header with dataset name, PI name, version date
- modified parameters to BCO-DMO standard
- renamed parameter: Fieldtrip to date_Fieldtrip
- added year column
- sorted by date, site, and station

Data Files

File
sediment_organisms.csv (Comma Separated Values (.csv), 3.43 KB) MD5:8eaecfd10a3dada867d285396391e3db Primary data file for dataset ID 716366

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1325649

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Paytan_2014		2014-12-02	shoreside Carlsbad Desalination Plant	Adina Paytan (Principal Investigator)	data info

Instruments

Microscope - Optical

Supplied Name:

Supplied Description:

Instrument Type

Generic Name: Microscope - Optical

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB05/

Generic Description:

Instruments that generate enlarged images of samples using the phenomena of reflection and absorption of visible light. Includes conventional and inverted instruments. Also called a "light microscope".

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
year	year of sampling	unitless	year
date_Fieldtrip	local date formatted as Mon-yyyy	unitless	date_local
Site	sampling location relative to inflow and outflow	unitless	site
Station	distance along transect line from site 0	meters	sta
Latitude	latitude either at start or transect of at actual position; north is positive	decimal degrees	lat
Longitude	longitude either at start or transect of at actual position; east is positive	decimal degrees	lon
individ_kg_sed	The sum of annelida and crustaceans for each collected sample normalized to the amount of sediment collected	individuals/kilogram sediment	abundance
plastic_kg_sed	The amount of identified plastic pieces in each sample normalized to the amount of sediment collected	plastic pieces/kilogram sediment	abundance

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Database

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Dataset: Sediment fauna and plastic