Dataset: Composition of marine invertebrate communities across latitude with exposure to predation

Name: Composition of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude)
Published: 2021-10-12
Keywords: marine invertebrate, predation, latitude, Marine invasion, fish, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.862068.1

Spatial Extent: N:55.4726 E:-79.5218 S:8.9128 W:-131.797

Temporal Extent: 2015-09-28 - 2017-09-23

Project:

Community Effects of Competition and Predation across Latitude and Implications for Species Invasions (Competition and Predation across Latitude)

Principal Investigator:

Amy L. Freestone (Temple University, Temple)

Co-Principal Investigator:

Gregory E. Ruiz (Smithsonian Environmental Research Center, SERC)

Mark E. Torchin (Smithsonian Tropical Research Institute , STRI)

Scientist:

Laura J. Jurgens (Temple University, Temple)

Carmen Schlöder (Smithsonian Tropical Research Institute , STRI)

Student:

Mariana Bonfim (Temple University, Temple)

Diana Paola López (Temple University, Temple)

Michele F. Repetto (Temple University, Temple)

Contact:

Amy L. Freestone (Temple University, Temple)

BCO-DMO Data Manager:

Sawyer Newman (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2021-10-12

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Composition of marine invertebrate communities across latitude with exposure to predation (Competition and Predation across Latitude)

Abstract:

Composition of sessile marine invertebrates from coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages and then underwent exposure to predation or were re-caged as controls. This experiment provided an assessment of predation impact on mature communities to complement predator exclusion experiments that measured impact of predators on prey community assembly.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2021-10-12	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.862068.1	2023-03-09

Description

Methods & Sampling

Methodology:

Marine invertebrate communities grew on artificial settlement panels (14 x 14 cm) hung on floating docks one meter below the water surface at local marinas at three coastal sites in each region. Communities developed for three or 12 months under reduced predation (in cages). Caging materials had a mesh size of 0.635 cm. Communities were retrieved, assessed for percent cover of species, and assigned as controls (re-caged) or exposure treatments (no cage). Communities were re-deployed in the same location where they developed for a short-term, three-day experiment to test the impact of ambient predation on prey communities. Initial deployment of caged panels occurred in Alaska in June 2015, California in May 2016, Mexico in June 2017 and Panama in December 2015.

Sampling and analytical procedures:

Following the assigned 3- or 12-month developmental period, communities were temporarily retrieved and brought back to a laboratory for assessment. Communities were re-deployed in their original location on the same day, and cages were either removed (exposure treatment) or kept intact (controls) for the short-term three-day experiment. After three days, communities were retrieved again and brought back to a laboratory for final assessment. At each assessment, sessile marine invertebrates from each community were identified to the lowest taxonomic level possible on a 50-point grid using a stereoscope to generate a measure of percent cover by taxa.

Data Processing Description

BCO-DMO Processing Notes:

Converted dates to YYYY-MM-DD format
Removed _month strings from Deploy_duration column

Data Files

File
def_biovision_dataarchive_predexp_3mo12mo_10jun21-2.csv (Comma Separated Values (.csv), 679.85 KB) MD5:48ba7499f664f90be7335bb4c4610376 Primary data file for dataset ID 862068

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1434528

Deployments

None available yet

Instruments

Grooved PVC settlement plate

Supplied Name: Artificial settlement panels

Supplied Description:

Marine invertebrate communities grew on artificial settlement panels (14 x 14 cm) hung on floating docks one meter below the water surface at local marinas at three coastal sites in each region.

Instrument Type

Generic Name: Grooved PVC settlement plate

Generic Description:

An artificial colonization substrate made of a sheet of PVC with engraved lines to roughen its surface. It is used to determine the extent of colonization and/or the diversity of settled organisms in a marine or artificial environment.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Region	Region where each taxon was collected (Alaska, California, Mexico, Panama)	unitless	region
Site_name	Complete site name	unitless	site
Site_code	Unique site abbreviation (two letter code)	unitless	Site_ID
Latitude	Latitude of site where communities developed. Negative values indicate South.	decimal degrees	lat
Longitude	Longitude of site where communities developed. Negative values indicate West.	decimal degrees	lon
Plate_ID	Unique panel (community) reference number	unitless	sample
Deploy_date	Date when experimental communities (panels) were deployed for a 3 or 12 month developmental period. Format: YYYY-MM-DD. Format: %Y-%m-%d	unitless	date
Retrieve_date	Date when experimental communities (panels) were retrieved after a 3 or 12 month developmental period. Format: YYYY-MM-DD. Format: %Y-%m-%d	unitless	date_re
Exposure_start_date	Date when short-term, three-day exposure experiment started. Format: YYYY-MM-DD. Format: %Y-%m-%d	unitless	date_start
Deploy_duration	Length of community development period (3 or 12-month)	number of months	duration
Predation_exposure_treatment	Treatment description. control = caged, exposed = uncaged, exposed to predation	unitless	treatment
Sampling_interval	Time when community was sampled. pre = after initial retrieval, prior to onset of exposure experiment; post = after three-day exposure period	unitless	sample_type
Taxa	Family or higher taxonomic information. Bare = panel surface on point, no organism present	unitless	taxon
Taxa_num	Unique morphospecies number identifier	unitless	taxon_code
MorphName	Lower taxonomic information (~genus/species, if available) based on best available information in the field	unitless	taxon
InvStatus	Invasion status: native; introduced; crypto = cryptogenic	unitless	sample_descrip
Abundance	Number of points from 50-point grid where each taxon was present	unitless	abundance

Database

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Dataset: Composition of marine invertebrate communities across latitude with exposure to predation