Dataset: Habitat characteristics 2014-2016

Name: Monthly barnacle habitat characteristic data collected at Bird Rock, La Jolla, CA, 2014-2016
Published: 2018-08-20
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.743915.1

Spatial Extent: N:32.81 E:-117.2695 S:32.81 W:-117.2695

Temporal Extent: 2014-12 - 2016-11

Project:

Nearshore larval transport: physical and biological processes (Nearshore larval transport)

Principal Investigator:

Nathalie Reyns (University of San Diego, USD)

Co-Principal Investigator:

Steven J. Lentz (Woods Hole Oceanographic Institution, WHOI)

Jesus Pineda (Woods Hole Oceanographic Institution, WHOI)

Contact:

Nathalie Reyns (University of San Diego, USD)

BCO-DMO Data Manager:

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

Version:

Version Date:

2018-08-20

Restricted:

Release Date:

2020-08-10

Validated:

Yes

Current State:

Final no updates expected

Monthly barnacle habitat characteristic data collected at Bird Rock, La Jolla, CA, 2014-2016

Abstract:

Reported in this dataset are monthly surveys of the barnacle Chthamalus fissus settlement rates and their habitats measured as percent cover by live and dead barnacles, algae, sand, other, and free space. The study took place at Bird Rock, La Jolla, CA in the southern California nearshore from December 2014 through November 2016.

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2018-08-20	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.743915.1	2020-08-10

Description

Methods & Sampling

Chthamalus fissus barnacle settlement (# of individuals per cm2 d) was measured from April 2014 to December 2016 using PVC settlement plates. From daily and weekly settlement rates, monthly C. fissus settlement rate (# of individuals per cm2 d) was calculated by taking the average settlement rate for all plates deployed during each 30-day period leading up to the dates of the adult/habitat surveys. (Settlement plates were collected daily and weekly at Bird Rock, La Jolla and processed as described in Pineda et al. (2018).

To understand how the distribution and cover of adult C. fissus populations and habitat characteristics varied across the site, monthly surveys were conducted from December 2014 through December 2016 during new moon periods at the lowest low tide. A 4 x 4 cm quadrat was haphazardly placed on top of the same rocks where settlement plates were deployed. Within the 16 cm2 area of the quadrat, percent cover of free space, live barnacles, dead barnacles, and algae were quantified by sampling 30 randomly selected (x, y) points within the quadrat. Habitat surveys and settlement collections are also described in Hargenrader (2018).

Data Processing Description

BCO-DMO data manager processing notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- reduced number of digits to right of decimal from 14 to 3 places for settlement rates and statistics
- re-formatted date from mmm-yy to mmm-yyyy

Data Files

File
habitat.csv (Comma Separated Values (.csv), 2.06 KB) MD5:7481b4729cc18906a211b8da4f3cd4cd Primary data file for dataset ID 743915

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1357290
NSF Division of Ocean Sciences	OCE-1357327

Deployments

None available yet

Instruments

colonization substrata

Supplied Name:

Supplied Description:

PVC settlement plates

Instrument Type

Generic Name: colonization substrata

Generic Description:

Natural or artificial materials deployed in a marine or artificial environment for a given period to act as standardised, passive settlement sampling devices (e.g. settlement plates). They are used to determine the extent of colonization and/or the diversity of settled organisms.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
month_year	month and year of habitat survey formatted as mmm-yyyy	unitless	date
AVERAGE_Monthly_settlement	average Chthamalus fissus settlement to rocky intertidal	# settlers/cm^2/day	no_bcodmo_term
SE_Monthly_settlement	standard error of monthly Chthamalus fissus	# settlers/cm^2/day	no_bcodmo_term
AVERAGE_pct_Live_Barnacles	monthly average cover of adult living barnacles on boulders in rocky intertidal	% cover	percent_cover
SE_pct_Live_Barnacles	standard error of adult living barnacles on boulders in rocky intertidal	% cover	percent_cover
AVERAGE_pct_Dead_Barnacles	monthly average cover of adult dead barnacles on boulders in rocky intertidal	% cover	percent_cover
SE_pct_Dead_Barnacles	standard error of adult dead barnacles on boulders in rocky intertidal	% cover	percent_cover
AVERAGE_pct_Free_space	monthly average cover of bare space on boulders in rocky intertidal	% cover	percent_cover
SE_pct_Free_space	standard error of free space on boulders in rocky intertidal	% cover	percent_cover
AVERAGE_Algae	monthly average algal cover on boulders in rocky intertidal	% cover	percent_cover
SE_Algae	standard error of algal cover on boulders in rocky intertidal	% cover	percent_cover
AVERAGE_Sand	monthly average sand cover on boulders in rocky intertidal	% cover	percent_cover
SE_Sand	standard error of sand cover on boulders in rocky intertidal	% cover	percent_cover
AVERAGE_other	monthly average cover off all other organisms on boulders in rocky intertidal	% cover	percent_cover
SE_other	standard error of cover by oher organisms on boulders in rocky intertidal	% cover	percent_cover

Status message

Database

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Dataset: Habitat characteristics 2014-2016