Dataset: Mark Recapture

Name: Mark recapture data for introduced crab in Seadrift Lagoon 2011-2018
Published: 2021-03-16
Keywords: biota, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.701840.2

Spatial Extent: N:37.90744 E:-122.666169 S:37.90744 W:-122.666169

Temporal Extent: 2011-07-19 - 2018-08-17

Project:

RAPID: A rare opportunity to examine overcompensation resulting from intensive harvest of an introduced predator (Invasive_predator_harvest)

Principal Investigator:

Edwin Grosholz (University of California-Davis, UC Davis)

Co-Principal Investigator:

Catherine de Rivera (Portland State University, PSU)

Gregory E. Ruiz (Portland State University, PSU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2021-03-16

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Mark recapture data for introduced crab in Seadrift Lagoon 2011-2018

Abstract:

Mark recapture data for introduced crab in Seadrift Lagoon (Central California coast, shallow subtidal (<3 m depth)) from 2011 to 2018.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2021-03-16	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.701840.2	2021-03-16
2017-06-02	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.1575/1912/bco-dmo.701840.1	2020-01-14

Description

Mark recapture data for introduced crab in Seadrift Lagoon (Central California coast, shallow subtidal (<3 m depth)) from 2011 to 2018.

Methods & Sampling

We conducted monthly trapping of invasive European green crabs to gather demographic data in Seadrift Lagoon, Stinson Beach, CA (lat 37.907440, long -122.6661694). All sites were accessed by either kayak or by foot via shore entry. At each of the six sites used for monthly trapping plus three additional sites, we placed 15 baited traps (folding Fukui fish traps) in shallow (<2 m) subtidal areas. Traps were retrieved 24 hours later and were rebaited and collected again the following day. Trapping was continued for four consecutive days with traps removed on the final day. Crabs were marked by clipping two adjacent anterio-lateral spines. Each day, data for crab species, size, sex, reproductive condition, injuries, and presence of marks were collected for all crabs in the field. Following data collection, all marked crabs were returned to the lagoon at the same site that the crabs were collected.

See Turner et al. (2016) for additional methodological details.

Data Processing Description

Data were entered and checked in MS Excel spreadsheets. Statistical analyses were run with either (R Development Core Team) or SAS (Statistical Analysis Systems).

BCO-DMO Processing:
v1 (2017-06-02):
- converted date to YYYY-MM-DD format;
- modified parameter names to conform with BCO-DMO naming conventions (changed to lowercase from mixed case, replaced spaces with underscores);
- created column for full species names and added names corresponding to each code from metadata page; changed 'species' column provided to 'species_code';
- replaced commas with semi-colons;
- replaced blanks (missing data) with 'nd';
- replaced spaces with underscores;
- sorted by date, site, then size.

v2 (2021-03-16):
- replaced version 1 of dataset with version 2, which includes a longer time series of data;
- replaced commas with semi-colons in the injury and recap_mark columns;
- converted date to YYYY-MM-DD format;
- replaced invalid values in sex and size columns with 'nd'.

Data Files

File
mark_recapture.csv (Comma Separated Values (.csv), 5.62 MB) MD5:d6602378e47cc56a72328e32df574148 Primary data file for dataset ID 701840

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1514893

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
Grosholz		2009-07-07	Central_CA_Coast	Edwin Grosholz (Principal Investigator)	data info

Instruments

Fukui fish trap

Supplied Name: Fukui fish traps

Supplied Description:

At each of the six sites used for monthly trapping plus three additional sites, we placed 15 baited traps (folding Fukui fish traps) in shallow (<2 m) subtidal areas.

Instrument Type

Generic Name: Fukui fish trap

Generic Description:

Fukui produces multi-species, multi-purpose collapsible or stackable fish traps, available in different sizes.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
lat	Latitude of Seadrift Lagoon	decimal degrees	lat
lon	Longitude of Seadrift Lagoon	decimal degrees	lon
size	Carapace width in millimeters	millimeters (mm)	width
date	Date (yyyy-mm-dd)	unitless	date
site	Name/identifier of site	unitless	site
sex	Sex: M = male, F = female = F, P = feminized male due to parasite infection	unitless	sex
gravid	G = indicates an egg mass was present	unitless	sample_descrip
injury	Injuries noted on the individual. Abbreviations: ML=missing leg, MC=missing claw, 2ML= two missing legs, DA=damaged abdomen, DL=damaged leg, etc.	unitless	sample_descrip
recap_mark	Refers to mark-recapture markings. Pairs of antereo-lateral spines (indexed 1-10) that had been removed by clipping a pair of spines as a 'mark' either spines 1,2 or 9,10.	unitless	sample_descrip
species_code	Species identifier/code	unitless	taxon_code
species	Species or taxon	unitless	taxon
lagoon	Name of the site	unitless	site

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Dataset: Mark Recapture