Dataset: urchin survivorship
Deployment: Witman_2012

Urchin survivorship from tethering experiments at rocky subtidal sites in the Galápagos Islands during 2007 – 2008.

View Data: For data, See Dataset Metadata Page: https://osprey.bco-dmo.org/dataset/632769

Principal Investigator:

Jon D. Witman (Brown University)

Scientist:

Franz Smith (Brown University)

Contact:

Franz Smith (Brown University)

Jon D. Witman (Brown University)

BCO-DMO Data Manager:

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

Project:

Effects of Predator Diversity on the Strength of Trophic Cascades in an Oceanic Benthic Ecosystem (GMR Trophic Cascades)

Current State:

Preliminary and in progress

Version:

Expand/Collapse All

Description

Related Reference:

Witman, J.D., R.W. Lamb and J.E.K. Byrnes (2015). Towards an integration of scale and complexity in marine ecology 2015. Ecological Monographs 85: 475-504.

Methods & Sampling

Dataset acquisition description

Data from sea urchin tethering experiments at rocky subtidal sites (10-12 m depth) in the Galapagos Islands during 2007 - 2008. Eucidaris galapagensis was used as prey in all trials. Data recorded by time lapse photography at 1 min intervals in Trials 1-5 and 8, and at 2 minute intervals in Trials 6 - 7.

Data Processing Description

Dataset Processing Description

Data are raw, with no processing.

BCO-DMO Processing:

- added conventional header with dataset name, PI name, version date, reference information
- renamed parameters to BCO-DMO standard
- reformatted data to a flat file
- added yearday_local and ISO_DateTime_Local for plotting purposes
- added to add lat/lon
- changed format of date to yyyy-mm-dd from m/d/yyyy
- changed format of time from H:M:S AM/PM to HHMM

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1061475	NSF Division of Ocean Sciences

Instruments

Camera

Supplied Name:

Supplied Description:

GoPro digital video camera

Instrument Type

Generic Name: Camera

Acronym: camera

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/311/

Generic Description:

All types of photographic equipment including stills, video, film and digital systems.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
trial	trial identification number	unitless	exp_id
date_local	date; local time	yyyy-mm-dd	date_local
year	year	yyyy	year
mon_local	month; local time	mm	month_local
day_local	day; local time	dd	day_local
site	site name	unitless	site
lat	latitude; north is positive	decimal degrees	lat
lon	lonitude; east is positive	decimal degrees	lon
time_local	local time	HHMM	time_local
yrday_local	local day and decimal time. eg. 326.5 = 326th day of the year or November 22 at 1200 hours (noon)	unitless	yrday_local
ISO_DateTime_Local	Date/Time (Local) ISO formatted	YYYY-MM-DDTHH:MM:SS	ISO_DateTime_Local
survivors	number of live urchins remaining	urchins	count

Database

Contribute Data

Dataset: urchin survivorship
Deployment: Witman_2012

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: urchin survivorshipDeployment: Witman_2012

Dataset acquisition description

Dataset Processing Description

Dataset: urchin survivorship
Deployment: Witman_2012