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Title Sum-
Institution Dataset ID
   set  data   graph     files  public Collections of fish and invertebrates settled in artificial seagrass landscapes    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_784927

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt
attribute NC_GLOBAL acquisition_description String We measured recruitment of fishes and crabs to artificial and natural seagrass
beds in Back Sound, North Carolina from June to August 2018.\u00a0 We sampled
26 artificial seagrass landscapes defined by 18m x 13m landscape extents (234
m2). Within each landscape, we varied habitat amount and fragmentation
independently in a crossed design. We created a custom algorithm to generate
random landscapes using the randomHabitat function in the secr package in R
(Efford 2018, R Core Team 2018). Landscapes were generated along two
orthogonal axes of habitat cover (10-60%) and fragmentation using a random
modified clusters method (percolation probability = 0.10-0.59 which determines
patch number; higher percolation coefficients correspond to less
patchiness)(Saura and Martinez-Millan 2000). Landscapes were constrained to
fall within 2% of the area input parameter, while holding patch number similar
within fragmentation levels (1, 2-3, 4-5, 6-7, or 8-10 patches for each
level). Using this approach, we constructed landscapes in which seagrass area
and number of patches were uncorrelated (R = -0.02), allowing us to
independently assess the effects of seagrass area and habitat configuration on
fish communities across experimental study sites. Artificial seagrass units
(ASUs) were used to create artificial seagrass landscapes.\u00a0 ASUs were
made by tying green plastic ribbon to polyethylene mesh cut into 1.2m x 0.86m
rectangles, with ~450, 15 cm tall shoots (with 2 blades each) attached each
unit. ASUs were deployed by affixing ASUs in designated configurations to bare
sediment using metal lawn staples. These artificial landscapes were deployed
between May 23 to May 31, 2018.\u00a0 We compared the artificial seagrass
landscapes to natural landscapes in the same area.\u00a0 We sampled 18
haphazardly selected natural seagrass patches that were at least 100 m away
from the artificial seagrass landscapes.

We used Standardized Monitoring Units for Reef Fishes (SMURFs, Ammann 2004) to
measure recruitment of fishes and invertebrates into each landscape.\u00a0
SMURFs used in this study were 60 x 15 x 20 cm in size with an outer shell
made from 5 cm x 7.6 cm polyethylene mesh.\u00a0 Each SMURF was filled with
crumpled 2.5 x 2.5 cm polyethylene mesh and plastic mesh produce bags
For deployment, SMURFs were deployed attached to the bottom at one end, but
floated vertically in the water column.\u00a0 SMURFs were deployed for ~24hrs,
including overnight, and collected before noon on the following day (pick-up
times are included in the data).\u00a0 Upon retrieval, the SMURF was enclosed
in a custom made BINKE net (Anderson and Carr 1998) made out of 1.5 mm square
nylon netting.\u00a0 The SMURF was brought to the boat within the enclosed
BINKE net and placed into a large plastic tub.\u00a0 It was shaken vigorously
while being rinsed with buckets of seawater and then the rinse water in the
tub was visually inspected for organisms which we collected, placed in a
resealable plastic bag, and quickly froze in an ice and seawater slurry. This
process was repeated until three successive rinses yielded no new
organisms.\u00a0 The water in the tub was passed through a 1 mm mesh sieve to
ensure no organisms remained in the tub. All organisms were returned to the
lab for processing. Each landscape was sampled on 9 different dates between
June and August, representing the major recruitment period for most fishes in
this system.
attribute NC_GLOBAL awards_0_award_nid String 714025
attribute NC_GLOBAL awards_0_award_number String OCE-1635950
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1635950 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String Michael E. Sieracki
attribute NC_GLOBAL awards_0_program_manager_nid String 50446
attribute NC_GLOBAL awards_1_award_nid String 714031
attribute NC_GLOBAL awards_1_award_number String OCE-1661683
attribute NC_GLOBAL awards_1_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1661683 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String Michael E. Sieracki
attribute NC_GLOBAL awards_1_program_manager_nid String 50446
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Smurf settlement
PI: Lauren Yeager
Data Version 1: 2019-12-23
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2019-12-20T21:38:04Z
attribute NC_GLOBAL date_modified String 2020-02-24T16:59:41Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.784927.1
attribute NC_GLOBAL Easternmost_Easting double -76.588016
attribute NC_GLOBAL geospatial_lat_max double 34.7067
attribute NC_GLOBAL geospatial_lat_min double 34.70033333
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -76.588016
attribute NC_GLOBAL geospatial_lon_min double -76.602848
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/784927 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, cover, data, dataset, date, dmo, erddap, fragmentation, Fragmentation_treatment, gear, iso, landscape, Landscape_type, larvae, Larvae_settler, latitude, longitude, management, notes, oceanography, office, percent, Percent_cover_treatment, pick, Pick_up_date, Pick_up_time, PickUp_DateTime_UTC_ISO, preliminary, processed, Processed_by, sample, Sample_ID, settler, site, size, taxa, time, treatment, type
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/784927/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/784927 (external link)
attribute NC_GLOBAL Northernmost_Northing double 34.7067
attribute NC_GLOBAL param_mapping String {'784927': {'Latitude': 'flag - latitude', 'PickUp_DateTime_UTC_ISO': 'flag - time', 'Longitude': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/784927/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Texas - Marine Science Institute
attribute NC_GLOBAL people_0_affiliation_acronym String UTMSI
attribute NC_GLOBAL people_0_person_name String Lauren A. Yeager
attribute NC_GLOBAL people_0_person_nid String 714030
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of North Carolina at Chapel Hill
attribute NC_GLOBAL people_1_affiliation_acronym String UNC-Chapel Hill-IMS
attribute NC_GLOBAL people_1_person_name String Dr F. Joel Fodrie
attribute NC_GLOBAL people_1_person_nid String 559341
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Karen Soenen
attribute NC_GLOBAL people_2_person_nid String 748773
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String Habitat Fragmentation
attribute NC_GLOBAL projects_0_acronym String Habitat Fragmentation
attribute NC_GLOBAL projects_0_description String Amount and quality of habitat is thought to be of fundamental importance to maintaining coastal marine ecosystems. This research will use large-scale field experiments to help understand how and why fish populations respond to fragmentation of seagrass habitats. The question is complex because increased fragmentation in seagrass beds decreases the amount and also the configuration of the habitat (one patch splits into many, patches become further apart, the amount of edge increases, etc). Previous work by the investigators in natural seagrass meadows provided evidence that fragmentation interacts with amount of habitat to influence the community dynamics of fishes in coastal marine landscapes. Specifically, fragmentation had no effect when the habitat was large, but had a negative effect when habitat was smaller. In this study, the investigators will build artificial seagrass habitat to use in a series of manipulative field experiments at an ambitious scale. The results will provide new, more specific information about how coastal fish community dynamics are affected by changes in overall amount and fragmentation of seagrass habitat, in concert with factors such as disturbance, larval dispersal, and wave energy. The project will support two early-career investigators, inform habitat conservation strategies for coastal management, and provide training opportunities for graduate and undergraduate students. The investigators plan to target students from underrepresented groups for the research opportunities.
Building on previous research in seagrass environments, this research will conduct a series of field experiments approach at novel, yet relevant scales, to test how habitat area and fragmentation affect fish diversity and productivity. Specifically, 15 by 15-m seagrass beds will be created using artificial seagrass units (ASUs) that control for within-patch-level (~1-10 m2) factors such as shoot density and length. The investigators will employ ASUs to manipulate total habitat area and the degree of fragmentation within seagrass beds in a temperate estuary in North Carolina. In year one, response of the fishes that colonize these landscapes will be measured as abundance, biomass, community structure, as well as taxonomic and functional diversity. Targeted ASU removals will then follow to determine species-specific responses to habitat disturbance. In year two, the landscape array and sampling regime will be doubled, and half of the landscapes will be seeded with post-larval fish of low dispersal ability to test whether pre- or post-recruitment processes drive landscape-scale patterns. In year three, the role of wave exposure (a natural driver of seagrass fragmentation) in mediating fish community response to landscape configuration will be tested by deploying ASU meadows across low and high energy environments.
attribute NC_GLOBAL projects_0_end_date String 2019-08
attribute NC_GLOBAL projects_0_geolocation String North Carolina
attribute NC_GLOBAL projects_0_name String Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms
attribute NC_GLOBAL projects_0_project_nid String 714026
attribute NC_GLOBAL projects_0_start_date String 2016-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 34.70033333
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String Gear,Processed_by
attribute NC_GLOBAL summary String Collections of fish and invertebrates settles in artificial seagrass landscapes collected between June and August 2018
attribute NC_GLOBAL time_coverage_start String 2018-06-07T14:01:00Z
attribute NC_GLOBAL title String Collections of fish and invertebrates settled in artificial seagrass landscapes
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -76.602848
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Sample_ID   String  
attribute Sample_ID bcodmo_name String sample
attribute Sample_ID description String Unique sample identifier: site + date
attribute Sample_ID long_name String Sample ID
attribute Sample_ID nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Sample_ID units String unitless
variable Landscape_type   String  
attribute Landscape_type bcodmo_name String sample_type
attribute Landscape_type description String Was the SMURF placed in a natural seagrass bed (natural) or one made of artifical seagrass units (ASU)
attribute Landscape_type long_name String Landscape Type
attribute Landscape_type units String unitless
variable Percent_cover_treatment   float  
attribute Percent_cover_treatment _FillValue float NaN
attribute Percent_cover_treatment actual_range float 10.0, 60.0
attribute Percent_cover_treatment bcodmo_name String cover_pcent
attribute Percent_cover_treatment colorBarMaximum double 100.0
attribute Percent_cover_treatment colorBarMinimum double 0.0
attribute Percent_cover_treatment description String Percent cover treatment- area of the landscape covered in artificial seagrass
attribute Percent_cover_treatment long_name String Percent Cover Treatment
attribute Percent_cover_treatment units String percentage (%)
variable Fragmentation_treatment   float  
attribute Fragmentation_treatment _FillValue float NaN
attribute Fragmentation_treatment actual_range float 0.1, 0.59
attribute Fragmentation_treatment bcodmo_name String treatment
attribute Fragmentation_treatment description String Fragmentation treatment - percolation coefficient from random landscape generation"
attribute Fragmentation_treatment long_name String Fragmentation Treatment
attribute Fragmentation_treatment units String unitless
variable Site   String  
attribute Site bcodmo_name String site
attribute Site description String Site name
attribute Site long_name String Site
attribute Site units String unitless
variable Pick_up_date   String  
attribute Pick_up_date bcodmo_name String date
attribute Pick_up_date description String Date retrieved
attribute Pick_up_date long_name String Pick Up Date
attribute Pick_up_date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute Pick_up_date units String unitless
variable Pick_up_time   String  
attribute Pick_up_time bcodmo_name String time
attribute Pick_up_time description String Time retrieved on 24-hour clock in local time (EST)
attribute Pick_up_time long_name String Pick Up Time
attribute Pick_up_time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute Pick_up_time units String unitless
variable Gear   String  
attribute Gear bcodmo_name String sampling_method
attribute Gear description String Collection gear
attribute Gear long_name String Gear
attribute Gear units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 34.70033333, 34.7067
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude (South is negative)
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -76.602848, -76.588016
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude (West is negative)
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable Processed_by   String  
attribute Processed_by bcodmo_name String investigator
attribute Processed_by description String Intials of person who processed the sample
attribute Processed_by long_name String Processed By
attribute Processed_by units String unitless
variable Taxa   String  
attribute Taxa bcodmo_name String taxon
attribute Taxa description String Taxa name
attribute Taxa long_name String Taxa
attribute Taxa units String unitless
variable Size   float  
attribute Size _FillValue float NaN
attribute Size actual_range float 1.0, 224.0
attribute Size bcodmo_name String length
attribute Size description String Standard length (fish), carapace length (shrimp), or carapace width (crabs)
attribute Size long_name String Size
attribute Size units String millimeter (mm)
variable Larvae_settler   String  
attribute Larvae_settler bcodmo_name String flag
attribute Larvae_settler description String Was the organism in the larval stage or recently settled? Y = yes, N = no
attribute Larvae_settler long_name String Larvae Settler
attribute Larvae_settler units String unitless
variable N   byte  
attribute N _FillValue byte 127
attribute N actual_range byte 0, 48
attribute N bcodmo_name String count
attribute N description String Count, number of individuals
attribute N long_name String N
attribute N units String unitless
variable Notes   String  
attribute Notes bcodmo_name String comment
attribute Notes description String Notes
attribute Notes long_name String Notes
attribute Notes units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.52838006E9, NaN
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Pick up date and time in UTC and ISO formatted. The column shows up as nd when there was no local time defined for that specific row.
attribute time ioos_category String Time
attribute time long_name String Pick Up Date Time UTC ISO
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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