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   set  data   graph     files  public Physical data (sex, weight, tag ID number) from Harbor Seals tagged in the San Juan Islands,
2007-2008
   ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_3794

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
attribute NC_GLOBAL acquisition_description String The methods below are further described in Peterson et al. (2012), Ward et al.
(2012), and Thomas et al. (2011):
To estimate the movement behavior of Harbor Seals, adult seals were captured
in 2007 to 2008 at several sites in the San Juan Islands: Padilla Bay, Bird
Rocks, Belle Chain, and Protection Island. Several methods were used to
capture seals, including boat rushes, beach sienes, and tangle-nets. Captured
seals were sexed, weighed, and measured. Seals were classified as adults if
they weighed more than 50 kg. All animals were flipper-tagged with unique ID
numbers. Adult seals were tagged with time-depth recorders, and satellite tags
were glued to the animals.

References:
Peterson, S., Lance, M. M., Jeffries, S. J. & Acevedo-Gutierrez, A. 2012. Long
distance movements and disjunct spatial use of harbor seals (Phoca vitulina)
in the inland waters of the Pacific Northwest. PLoS ONE 7: e39046. DOI:
[10.1371/journal.pone.0039046](\\"https://dx.doi.org/10.1371/journal.pone.0039046\\")
Thomas, AC; Lance, MM; Jeffries, SJ; Miner, BG; Acevedo-Gutierrez, A. 2011.
Harbor seal foraging response to a seasonal resource pulse, spawning Pacific
herring. Marine Ecology-Progress Series, v.441. p. 225. DOI:
[10.3354/meps09370](\\"https://dx.doi.org/10.3354/meps09370\\")
Ward, EJ; Levin, PS; Lance, MM; Jeffries, SJ; Acevedo-Gutierrez, A. 2012.
Integrating diet and movement data to identify hot spots of predation risk and
areas of conservation concern for endangered species. Conservation Letters,
v.5, p. 37. DOI:
[10.1111/j.1755-263X.2011.00210.x](\\"https://dx.doi.org/10.1111/j.1755-263X.2011.00210.x\\")
attribute NC_GLOBAL awards_0_award_nid String 54955
attribute NC_GLOBAL awards_0_award_number String OCE-0550443
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0550443 (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 David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Seal data measured at time of capture, San Juan Islands, 2007-2008
Lead PI: Alejandro Acevedo-Gutierrez
Version: 26 Nov 2012
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 2012-11-26T17:41:32Z
attribute NC_GLOBAL date_modified String 2019-08-01T18:59:42Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.3794.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/3794 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String age, bco, bco-dmo, biological, biopsy, blood, chemical, comment, data, dataset, date, day, dmo, erddap, inst, inst2, inst3, lactating, length, management, molt, month, num, num2, num3, oceanography, office, pelage, pregnant, preliminary, pttno, region, seal, seal_id, season, serial, serial_num, serial_num2, serial_num3, sex, site, time, weight, year
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/3794/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/3794 (external link)
attribute NC_GLOBAL param_mapping String {'3794': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/3794/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Western Washington University
attribute NC_GLOBAL people_0_affiliation_acronym String WWU
attribute NC_GLOBAL people_0_person_name String Alejandro Acevedo-Gutierrez
attribute NC_GLOBAL people_0_person_nid String 51487
attribute NC_GLOBAL people_0_role String Lead Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String United States Geological Survey
attribute NC_GLOBAL people_1_affiliation_acronym String USGS
attribute NC_GLOBAL people_1_person_name String Jeffrey F Bromaghin
attribute NC_GLOBAL people_1_person_nid String 51491
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 Washington Department of Fish and Wildlife
attribute NC_GLOBAL people_2_person_name String Steven J Jeffries
attribute NC_GLOBAL people_2_person_nid String 51489
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String University of Alaska, Anchorage
attribute NC_GLOBAL people_3_affiliation_acronym String UAA
attribute NC_GLOBAL people_3_person_name String John M Kennish
attribute NC_GLOBAL people_3_person_nid String 51490
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String Washington Department of Fish and Wildlife
attribute NC_GLOBAL people_4_person_name String Monique M Lance
attribute NC_GLOBAL people_4_person_nid String 51488
attribute NC_GLOBAL people_4_role String Co-Principal Investigator
attribute NC_GLOBAL people_4_role_type String originator
attribute NC_GLOBAL people_5_affiliation String National Marine Fisheries Service
attribute NC_GLOBAL people_5_affiliation_acronym String NMFS
attribute NC_GLOBAL people_5_person_name String Philip S Levin
attribute NC_GLOBAL people_5_person_nid String 51492
attribute NC_GLOBAL people_5_role String Co-Principal Investigator
attribute NC_GLOBAL people_5_role_type String originator
attribute NC_GLOBAL people_6_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_6_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_6_person_name String Shannon Rauch
attribute NC_GLOBAL people_6_person_nid String 51498
attribute NC_GLOBAL people_6_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_6_role_type String related
attribute NC_GLOBAL project String Seal_response_to_prey
attribute NC_GLOBAL projects_0_acronym String Seal_response_to_prey
attribute NC_GLOBAL projects_0_description String From NSF proposal:
This project is a collaborative study of the responses of harbor seals and other mammalian predators to changes in prey density in Puget Sound. The general study approach will involve multi-year field estimates to observe the responses of predators to rockfish density in protected areas, candidate marine reserves, and unprotected sites.
The collaborating investigators will estimate 1) rockfish density using visual and mark and recapture techniques; 2) predator abundance using aerials surveys and dedicated land observations; and 3) predator food consumption using scat to describe diet, tagging of harbor seals to describe individual foraging sites, and population-based and individual bioenergetics models to describe consumption of rockfish. The investigators will also take into account confounding factors that might explain predator behavior, such as environmental variables and alternative prey, by creating a GIS database from available information from the area. The different field observations and database estimates are explicitly linked through a common hypothesis and coordinated methodologies, and their results will be integrated into a model describing the impact of predation on rockfish populations. The responses of top predators to changes in prey density and their impact on fish populations of interest are unknown. This study will evaluate the effectiveness of MPAs as fish refugia, offer a framework for the management and conservation of marine resources, and provide an exciting opportunity for students to participate in ecological and conservation research.
Hypotheses:
1) Harbor seals and other pinniped species show aggregative responses to changes in prey density. Hence, their abundance will increase with fish density.
2) Harbor seals and other pinniped species show Type 2 or 3 functional responses to changes in prey density. Thus, their consumption rate of a particular prey type follows an asymptotic or sigmoidal curve relative to the prey’s density, respectively.
3) Predation by harbor seals and other pinniped species is sufficiently intense that it impedes recovery of depleted fish populations.
Objectives:
1) Quantify the number of harbor seals and other pinniped species in relation to rockfish density and other environmental (confounding) factors.
2) Estimate the consumption rate of harbor seals and other pinniped species in relation to rockfish density and other prey species.
3) Correlatively estimate the influence of predation by harbor seals and other pinniped species on survivorship and population size of rockfish.
Publications resulting from this NSF award:Bjorland, R. H., Pearson, S. F, Jeffries, S. J, Lance, M. M., Acevedo- Gutiérrez, A. & Ward, E. J. 2015. Stable isotope mixing models elucidate sex and size effects on the diet of a generalist marine predator. Marine Ecology Progress Series 526: 213-225. DOI: 10.3354/meps11230Bromaghin, J. F., Lance, M. M., Elliott, E. W., Jeffries, S. J., Acevedo-Gutierrez, A. & Kennish, J. M. 2013. New insights into the diets of harbor seals in the Salish Sea of western North America revealed by quantitative fatty acid signature analysis. Fishery Bulletin 111: 13-26. DOI: 10.7755/FB.111.1.2Buzzell, B.1, Lance, M. & Acevedo-Gutiérrez, A. 2014. Spatial and temporal variation in river otter (Lontra canadensis) diet and predation on rockfish (Genus Sebastes) in the San Juan Islands, Washington. Aquatic Mammals 40: 150- 161. DOI: 10.1578/AM.40.2.2014.150Howard, S., Lance, M., Jeffries, S. & Acevedo-Gutierrez, A. 2013. Fish consumption by harbor seals (Phoca vitulina) in the San Juan Islands, WA. Fishery Bulletin 111: 27-41. DOI: 10.7755/FB.111.1.3Lance, M. M., Chang, W.-Y., Jeffries, S. J., Pearson, S. F. & Acevedo-Gutierrez, A. 2012. Harbor seal diet in northern Puget Sound: implications for the recovery of depressed fish stocks. Marine Ecology Progress Series 464:257-271. DOI:10.3354/meps09880Luxa, K. & Acevedo-Gutierrez, A. 2013. Food habits of harbor seals (Phoca vitulina) in two estuaries in the central Salish Sea. Aquatic Mammals 39: 10- 22. DOI: 10.1578/AM.39.1.2013.10Peterson, S., Lance, M. M., Jeffries, S. J. & Acevedo-Gutierrez, A. 2012. Long distance movements and disjunct spatial use of harbor seals (Phoca vitulina) in the inland waters of the Pacific Northwest. PLoS ONE 7: e39046. DOI: 10.1371/journal.pone.0039046Thomas, AC; Lance, MM; Jeffries, SJ; Miner, BG; Acevedo-Gutierrez, A. 2011. Harbor seal foraging response to a seasonal resource pulse, spawning Pacific herring. Marine Ecology-Progress Series, v.441. p. 225. DOI: 10.3354/meps09370Ward, EJ; Levin, PS; Lance, MM; Jeffries, SJ; Acevedo-Gutierrez, A. 2012. Integrating diet and movement data to identify hot spots of predation risk and areas of conservation concern for endangered species. Conservation Letters, v.5, p. 37. DOI: 10.1111/j.1755-263X.2011.00210.xWilson, K.2, Lance, M., Jeffries, S. & Acevedo-Gutiérrez, A. 2014. Fine-scale variability in harbor seal foraging behavior. PLoS ONE 9: e92838. DOI: 10.1371/journal.pone.0092838.
attribute NC_GLOBAL projects_0_end_date String 2012-03
attribute NC_GLOBAL projects_0_geolocation String Salish Sea, USA and Canada
attribute NC_GLOBAL projects_0_name String Responses of Seals and Sea Lions to Increased Rockfish Density
attribute NC_GLOBAL projects_0_project_nid String 2205
attribute NC_GLOBAL projects_0_project_website String http://biol.wwu.edu/mbel/?page=research (external link)
attribute NC_GLOBAL projects_0_start_date String 2006-04
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 standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String lactating,blood,biopsy
attribute NC_GLOBAL summary String Physical and identifying info for Harbor Seals tagged and tracked in the San Juan Islands from 2007 to 2008; includes sex, length, weight, pelage description, and tag ID numbers.
attribute NC_GLOBAL title String Physical data (sex, weight, tag ID number) from Harbor Seals tagged in the San Juan Islands, 2007-2008
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable seal_id   String  
attribute seal_id bcodmo_name String sealname
attribute seal_id description String Unique seal identification.
attribute seal_id long_name String Seal Id
attribute seal_id units String unitless
variable season   String  
attribute season bcodmo_name String season
attribute season description String Season: spring, winter, or fall.
attribute season long_name String Season
attribute season units String text
variable date   String  
attribute date bcodmo_name String date
attribute date description String Date of capture. format: mm/dd/YYYY
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date source_name String date
attribute date time_precision String 1970-01-01
attribute date units String unitless
variable month   String  
attribute month bcodmo_name String month
attribute month description String 2-digit month when captured. format: mm (01 to 12)
attribute month long_name String Month
attribute month nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/MNTHXXXX/ (external link)
attribute month units String unitless
variable day   String  
attribute day bcodmo_name String day
attribute day description String 2-digit day of month when captured. format: dd (01 to 31)
attribute day long_name String Day
attribute day nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DAYXXXXX/ (external link)
attribute day units String unitless
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2007, 2008
attribute year bcodmo_name String year
attribute year description String Year of capture. format: YYYY
attribute year long_name String Year
attribute year nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/ (external link)
attribute year units String unitless
variable region   String  
attribute region bcodmo_name String region
attribute region description String Name of the geographic region.
attribute region long_name String Region
attribute region units String text
variable site   String  
attribute site bcodmo_name String site
attribute site description String Name of the site where captured.
attribute site long_name String Site
attribute site units String text
variable age   String  
attribute age bcodmo_name String ageclass
attribute age description String A or AD = adult; SAD = small adult.
attribute age long_name String Age
attribute age units String text
variable sex   String  
attribute sex bcodmo_name String sex
attribute sex description String Sex; M = male; F = female.
attribute sex long_name String Sex
attribute sex units String M or F
variable length   float  
attribute length _FillValue float NaN
attribute length actual_range float 121.0, 163.0
attribute length bcodmo_name String length
attribute length description String Length of the animal, in centimeters.
attribute length long_name String Length
attribute length units String cm
variable weight   String  
attribute weight bcodmo_name String weight
attribute weight description String Weight of the animal, in kilograms.
attribute weight long_name String Weight
attribute weight units String kg
variable pelage   String  
attribute pelage bcodmo_name String unknown
attribute pelage description String Description of the animal's pelage (coat).
attribute pelage long_name String Pelage
attribute pelage units String text
variable pregnant   String  
attribute pregnant bcodmo_name String unknown
attribute pregnant description String Yes/no indicator of whether or not the animal was pregnant.
attribute pregnant long_name String Pregnant
attribute pregnant units String Y / N
variable lactating   String  
attribute lactating bcodmo_name String unknown
attribute lactating description String Yes/no indicator of whether or not the animal was lactating.
attribute lactating long_name String Lactating
attribute lactating units String Y / N
variable molt   String  
attribute molt bcodmo_name String unknown
attribute molt description String Yes/no indicator of whether or not the animal was molting.
attribute molt long_name String Molt
attribute molt units String Y / N
variable blood   String  
attribute blood bcodmo_name String unknown
attribute blood description String Yes/no indicator of whether or not blood was drawn.
attribute blood long_name String Blood
attribute blood units String Y / N
variable biopsy   String  
attribute biopsy bcodmo_name String unknown
attribute biopsy description String Yes/no indicator of whether or not a sample was taken for biopsy.
attribute biopsy long_name String Biopsy
attribute biopsy units String Y / N
variable inst   String  
attribute inst bcodmo_name String instrument
attribute inst description String Model of the TDR (time-depth recorder) attached to the animal.
attribute inst long_name String Inst
attribute inst units String unitless
variable serial_num   String  
attribute serial_num bcodmo_name String inst_serial_numb
attribute serial_num description String inst serial number.
attribute serial_num long_name String Serial Num
attribute serial_num units String unitless
variable inst2   String  
attribute inst2 bcodmo_name String instrument
attribute inst2 description String Model of the tracking device attached to animal.
attribute inst2 long_name String Inst2
attribute inst2 units String unitless
variable serial_num2   String  
attribute serial_num2 bcodmo_name String inst_serial_numb
attribute serial_num2 description String inst2 serial number.
attribute serial_num2 long_name String Serial Num2
attribute serial_num2 units String unitless
variable pttno   int  
attribute pttno _FillValue int 2147483647
attribute pttno actual_range int 35898, 82050
attribute pttno bcodmo_name String pttno
attribute pttno description String PTT tag number.
attribute pttno long_name String Pttno
attribute pttno units String unitless
variable inst3   String  
attribute inst3 bcodmo_name String instrument
attribute inst3 description String Model of 3rd instrument associated with the animal.
attribute inst3 long_name String Inst3
attribute inst3 units String unitless
variable serial_num3   String  
attribute serial_num3 bcodmo_name String inst_serial_numb
attribute serial_num3 description String inst3 serial number.
attribute serial_num3 long_name String Serial Num3
attribute serial_num3 units String unitless
variable comment   String  
attribute comment bcodmo_name String comment
attribute comment description String Free-text comments.
attribute comment long_name String Comment
attribute comment units String text

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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