http://lod.bco-dmo.org/id/dataset/3704
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2012-08-29
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Locations of satellite-tagged harbor seals in the San Juan Islands, WA from 2007-2009
2012-11-28
publication
2012-11-28
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-03-01
publication
https://doi.org/10.1575/1912/bco-dmo.3704.1
Alejandro Acevedo-Gutierrez
Western Washington University
principalInvestigator
Jeffrey F Bromaghin
United States Geological Survey
principalInvestigator
Steven J Jeffries
Washington Department of Fish and Wildlife
principalInvestigator
John M Kennish
University of Alaska, Anchorage
principalInvestigator
Monique M Lance
Washington Department of Fish and Wildlife
principalInvestigator
Philip S. Levin
National Marine Fisheries Service
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Acevedo-Gutierrez, A., Bromaghin, J., Jeffries, S., Kennish, J., Lance, M., Levin, P. (2012) Locations of satellite-tagged harbor seals in the San Juan Islands, WA from 2007-2009. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2012-11-28 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.3704.1 [access date]
Locations of satellite-tagged harbor seals in the San Juan Islands, 2007-2009 Dataset Description: <p>Coordinates of tagged seals in the San Juan Islands are reported. Seals were captured and tagged during 2007 to 2009 at several sites in Padilla Bay and the Rosario Strait of the Pacific Northwest coast. Seals were tagged with satellite-linked time-depth recorders (TDR's) and GPS receivers.</p>
<p>Data are in the PRV format, which means that there are time and location duplicates because all uplinks to the satellite are included.</p> Methods and Sampling: <p>Seals were captured and tagged in April or May of 2007 and 2008 following the methods of Jeffries et al. (1993) at three sites: Padilla Bay, Bird/Belle Rocks, and Protection Island. In 2009, seals were captured on Protection Island. In 2007-2008, animals were tagged with time-depth recorders (TDR; Wildlife Computers, model Mk-9 or Mk-10F) and satellite tags. The TDR tags were placed on the dorsal midline of the animals and the satellite tags were placed on top the head. In 2009, animals were tagged with a combined satellite-linked TDR and Fastloc GPS receiver (Wildlife Computers, model Mk10AF). These instruments were epoxied to the animals on the dorsal midline so that satellite tags would be exposed to the air when the back of the seal reached the surface.</p>
<p>Position transmissions were received via the ARGOS satellite network. Tags transmitted locations daily. TDR sensors were programmed to sample every 10 seconds. TDR tags were equipped with a VHF transmitter to allow for the device to be recovered when it was shed during the animal's annual molt.</p>
<p>The Argos system provides 2 position estimates (lat/lon and lat2/lon2). Argos usually picks the correct lat/lon pair (of the two it generates), but occasionally it does not. When working with these data, one of the first steps is to check the lat/lon pairs to see if swapping out the lat/lon pair for the lat2/lon2 pair improves the data and is more biologically reasonable.</p>
<p>The Argos positioning system uses the following system for classifying location quality. These codes are used in the loc_q_flag column. Standard locations are those with &gt; 4 uplinks from the tag; auxiliary locations are those with 4 or less uplinks from the tag.<br />
<br />
<strong>loc_q_flag codes</strong> (according to Ward et al.):<br />
Standard locations:<br />
3 = 68th percentile predicted accuracy &lt; 150 m<br />
2 = 68th percentile predicted accuracy 150 - 350 m<br />
1 = 68th percentile predicted accuracy &lt; 1,000 m<br />
<br />
Auxiliary locations:<br />
0 = 4 uplinks, with &gt; 1,000 m predicted accuracy<br />
A = 3 uplinks, with no predicted accuracy<br />
B = 2 uplinks, with no predicted accuracy</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0550443 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0550443
completed
Alejandro Acevedo-Gutierrez
Western Washington University
1-360-650-3653
Department of Biology 516 High St. MS#9160
Bellingham
WA
98225-9160
USA
acevedo@biol.wwu.edu
pointOfContact
Jeffrey F Bromaghin
United States Geological Survey
1-907-786-7086
Alaska Science Center 4210 University Drive
Anchorage
AK
99508
USA
jbromaghin@usgs.gov
pointOfContact
Steven J Jeffries
Washington Department of Fish and Wildlife
1-253-589-7235
Marine Mammal Investigations 7801 Phillips Road SW
Lakewood
WA
98498
USA
Steven.Jeffries@dfw.wa.gov
pointOfContact
John M Kennish
University of Alaska, Anchorage
1-907-786-1236
Department of Chemistry and ASET Laboratory 3211 Providence Drive
Anchorage
AK
99508
USA
afjmk@uaa.alaska.edu
pointOfContact
Monique M Lance
Washington Department of Fish and Wildlife
1-253-691-3409
Wildlife Research Program 7801 Phillips Road SW
Lakewood
WA
98498
USA
Monique.Lance@dfw.wa.gov
pointOfContact
Philip S. Levin
National Marine Fisheries Service
206-860-3473
Northwest Fisheries Science Center, Northwest Regional Office 2725 Montlake Blvd E
Seattle
WA
98112
USA
Phil.Levin@noaa.gov
pointOfContact
asNeeded
Dataset Version: 1
Unknown
seal_id
pttno
inst
lat
lon
lat2
lon2
month
day
year
date
time
satellite
loc_q_flaq
SPOT5 Argos Transmitter
Wildlife Computers TDR
theme
None, User defined
sealname
tagid
instrument model
latitude
longitude
month of year
day of month
year
date
time of day
No BCO-DMO term
quality flag
featureType
BCO-DMO Standard Parameters
SPOT5 Argos Transmitter
Wildlife Computers Time-Depth Tag (TDR)
instrument
BCO-DMO Standard Instruments
Seal_Captures
service
Deployment Activity
San Juan Islands, WA
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Responses of Seals and Sea Lions to Increased Rockfish Density
http://biol.wwu.edu/mbel/?page=research
Responses of Seals and Sea Lions to Increased Rockfish Density
<p><strong>From NSF proposal:</strong><br />
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.</p>
<p>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.</p>
<p><strong>Hypotheses:</strong><br />
1) Harbor seals and other pinniped species show aggregative responses to changes in prey density. Hence, their abundance will increase with fish density.<br />
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.<br />
3) Predation by harbor seals and other pinniped species is sufficiently intense that it impedes recovery of depleted fish populations.</p>
<p><strong>Objectives:</strong><br />
1) Quantify the number of harbor seals and other pinniped species in relation to rockfish density and other environmental (confounding) factors.<br />
2) Estimate the consumption rate of harbor seals and other pinniped species in relation to rockfish density and other prey species.<br />
3) Correlatively estimate the influence of predation by harbor seals and other pinniped species on survivorship and population size of rockfish.</p>
<p><strong>Publications resulting from this NSF award:</strong><br />
<strong>Bjorland</strong>, 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: <a href="http://dx.doi.org/10.3354/meps11230" target="_blank">10.3354/meps11230</a><br />
<strong>Bromaghin</strong>, 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: <a href="http://dx.doi.org/10.7755/FB.111.1.2" target="_blank">10.7755/FB.111.1.2</a><br />
<strong>Buzzell</strong>, 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: <a href="http://dx.doi.org/10.1578/AM.40.2.2014.150" target="_blank">10.1578/AM.40.2.2014.150</a><br />
<strong>Howard</strong>, 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: <a href="http://dx.doi.org/10.7755/FB.111.1.3" target="_blank">10.7755/FB.111.1.3</a><br />
<strong>Lance</strong>, 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:<a href="http://dx.doi.org/10.3354/meps09880" target="_blank">10.3354/meps09880</a><br />
<strong>Luxa</strong>, K. & Acevedo-Gutierrez, A. 2013. Food habits of harbor seals (<em>Phoca vitulina</em>) in two estuaries in the central Salish Sea. Aquatic Mammals 39: 10- 22. DOI: <a href="http://dx.doi.org/10.1578/AM.39.1.2013.10" target="_blank">10.1578/AM.39.1.2013.10</a><br />
<strong>Peterson</strong>, S., Lance, M. M., Jeffries, S. J. & Acevedo-Gutierrez, A. 2012. Long distance movements and disjunct spatial use of harbor seals (<em>Phoca vitulina</em>) in the inland waters of the Pacific Northwest. PLoS ONE 7: e39046. DOI: <a href="http://dx.doi.org/10.1371/journal.pone.0039046" target="_blank">10.1371/journal.pone.0039046</a><br />
<strong>Thomas</strong>, 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: <a href="http://dx.doi.org/10.3354/meps09370" target="_blank">10.3354/meps09370</a><br />
<strong>Ward</strong>, 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: <a href="http://dx.doi.org/10.1111/j.1755-263X.2011.00210.x" target="_blank">10.1111/j.1755-263X.2011.00210.x</a><br />
<strong>Wilson</strong>, K.2, Lance, M., Jeffries, S. & Acevedo-Gutiérrez, A. 2014. Fine-scale variability in harbor seal foraging behavior. PLoS ONE 9: e92838. DOI: <a href="http://dx.doi.org/10.1371/journal.pone.0092838" target="_blank">10.1371/journal.pone.0092838</a>.</p>
Seal_response_to_prey
largerWorkCitation
project
eng; USA
oceans
San Juan Islands, WA
179.802
-106.99
8.818
28.597
2007-10-24
2009-08-03
Salish Sea, USA and Canada
0
BCO-DMO catalogue of parameters from Locations of satellite-tagged harbor seals in the San Juan Islands, WA from 2007-2009
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/29292.rdf
Name: seal_id
Units: unitless
Description: <p>Unique seal identification.</p>
http://lod.bco-dmo.org/id/dataset-parameter/29293.rdf
Name: pttno
Units: unitless
Description: <p>PTT tag number.</p>
http://lod.bco-dmo.org/id/dataset-parameter/29294.rdf
Name: inst
Units: unitless
Description: <p>Name of the instrument (MK10 or SPOT 5; both manufactured by Wildlife Computers).</p>
http://lod.bco-dmo.org/id/dataset-parameter/29295.rdf
Name: lat
Units: decimal degrees
Description: <p>Primary latitude. (See Acquisition Description.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29296.rdf
Name: lon
Units: decimal degrees
Description: <p>Primary longitude. (See Acquisition Description.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29297.rdf
Name: lat2
Units: decimal degrees
Description: <p>Secondary estimate of latitude provided by Argos. (See Acquisition Description.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29298.rdf
Name: lon2
Units: decimal degrees
Description: <p>Secondary estimate of longitude provided by Argos. (See Acquisition Description.)</p>
http://lod.bco-dmo.org/id/dataset-parameter/29299.rdf
Name: month
Units: mm
Description: <p>Month of year (01 to 12).</p>
http://lod.bco-dmo.org/id/dataset-parameter/29300.rdf
Name: day
Units: dd
Description: <p>Day of month (01 to 31).</p>
http://lod.bco-dmo.org/id/dataset-parameter/29301.rdf
Name: year
Units: unitless
Description: <p>4-digit year. in yyyy format</p>
http://lod.bco-dmo.org/id/dataset-parameter/29302.rdf
Name: date
Units: unitless
Description: <p>Date, in mm/dd/yyyy format.</p>
http://lod.bco-dmo.org/id/dataset-parameter/29303.rdf
Name: time
Units: HHMM
Description: <p>Time, 24-hour clock.</p>
http://lod.bco-dmo.org/id/dataset-parameter/29304.rdf
Name: satellite
Units: unitless
Description: <p>Identification of the Argos satellite transmitting the signal: A = METOP-A (MA); K = NOAA-15 (NK); L = NOAA-16 (NL); M = NOAA-17 (NM); N = NOAA-18 (NN); P = NOAA-N (NP). See <a href="http://www.argos-system.org/manual/index.html#2-system/23_satellites.htm" target="_blank">more information</a>.</p>
http://lod.bco-dmo.org/id/dataset-parameter/29305.rdf
Name: loc_q_flaq
Units: unitless
Description: <p>Location quality flag. The Argos system classifies points with decreasing precision: 3 > 2 > 1 > 0 > A > B. See Acquisition Description for code definitions.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
4808746
https://darchive.mblwhoilibrary.org/bitstream/1912/23746/1/dataset-3704_seallocationtracking__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.3704.1
download
onLine
dataset
<p>Seals were captured and tagged in April or May of 2007 and 2008 following the methods of Jeffries et al. (1993) at three sites: Padilla Bay, Bird/Belle Rocks, and Protection Island. In 2009, seals were captured on Protection Island. In 2007-2008, animals were tagged with time-depth recorders (TDR; Wildlife Computers, model Mk-9 or Mk-10F) and satellite tags. The TDR tags were placed on the dorsal midline of the animals and the satellite tags were placed on top the head. In 2009, animals were tagged with a combined satellite-linked TDR and Fastloc GPS receiver (Wildlife Computers, model Mk10AF). These instruments were epoxied to the animals on the dorsal midline so that satellite tags would be exposed to the air when the back of the seal reached the surface.</p>
<p>Position transmissions were received via the ARGOS satellite network. Tags transmitted locations daily. TDR sensors were programmed to sample every 10 seconds. TDR tags were equipped with a VHF transmitter to allow for the device to be recovered when it was shed during the animal's annual molt.</p>
<p>The Argos system provides 2 position estimates (lat/lon and lat2/lon2). Argos usually picks the correct lat/lon pair (of the two it generates), but occasionally it does not. When working with these data, one of the first steps is to check the lat/lon pairs to see if swapping out the lat/lon pair for the lat2/lon2 pair improves the data and is more biologically reasonable.</p>
<p>The Argos positioning system uses the following system for classifying location quality. These codes are used in the loc_q_flag column. Standard locations are those with &gt; 4 uplinks from the tag; auxiliary locations are those with 4 or less uplinks from the tag.<br />
<br />
<strong>loc_q_flag codes</strong> (according to Ward et al.):<br />
Standard locations:<br />
3 = 68th percentile predicted accuracy &lt; 150 m<br />
2 = 68th percentile predicted accuracy 150 - 350 m<br />
1 = 68th percentile predicted accuracy &lt; 1,000 m<br />
<br />
Auxiliary locations:<br />
0 = 4 uplinks, with &gt; 1,000 m predicted accuracy<br />
A = 3 uplinks, with no predicted accuracy<br />
B = 2 uplinks, with no predicted accuracy</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO made the following edits to the dataset:<br />
&nbsp;- blanks were replaced with 'nd' to indicate 'no data';<br />
&nbsp;- parameter names were modified to conform to BCO-DMO conventions;<br />
&nbsp;- day, month, and year were separated from the original date column.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
SPOT5 Argos Transmitter
SPOT5 Argos Transmitter
PI Supplied Instrument Name: SPOT5 Argos Transmitter PI Supplied Instrument Description:In 2007-2008, SPOT5 transmitters were epoxied to the tops of seals heads. Satellite locations were obtained daily. Instrument Name: SPOT5 Argos Transmitter Instrument Short Name:SPOT5 Instrument Description: The SPOT5 is an Argos transmitter manufactured by Wildlife Computers (Redmond, WA) and designed for deployment on marine mammals, fish, or seabirds. SPOT5 devices use the Argos satellite network to transmit locations of animals with an accuracy of +/- 350-meters. See more information from the manufacturer. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/POS17/
Wildlife Computers TDR
Wildlife Computers TDR
PI Supplied Instrument Name: Wildlife Computers TDR PI Supplied Instrument Description:TDR's were epoxied to seals along the dorsal midline. All TDR tags were equipped with an Eco-tech floatation pack and a VHF radio transmitter to allow for tracking and retrieval of the device once it became detached from the animal. TDR sensors were set to sample every 10 seconds and record only dives >2 m in depth or >30 s in duration. In 2009, the TDR's used contained an MK10-AF Argos transmitter. Instrument Name: Wildlife Computers Time-Depth Tag (TDR) Instrument Short Name:TDR Instrument Description: Time depth recorders (TDR's) manufactured by Wildlife Computers, Redmond WA) are designed for studies of seals, penguins, fish, and marine mammals. Standard TDR's are mounted externally on the animal's body, where they record temperature and depth. See more information from the manufacturer.
Deployment: Seal_Captures
Seal_Captures
shoreside San_Juan_Islands
island
Seal_Captures
Alejandro Acevedo-Gutierrez
Western Washington University
shoreside San_Juan_Islands
island