Four female and one male black-footed albatross (<i>Phoebastria nigripes</i>) were tracked using satellite telemetry during their post-breeding summer dispersal (July - September, 1997-1999). The females were tracked using transmitters that operated continuously, and the male was tracked using a duty-cycled transmitter programmed to transmit on 7-day ON:OFF cycles. Albatross movements and foraging grounds during the post-breeding dispersal are poorly understood, despite their important conservation implications. We tracked four female black-footed albatross (<i>Phoebastria nigripes</i>) for 100 days during their summer (July-September, 1997-1999) post-breeding dispersal off California, and compared their movements to the distribution of fishing effort from the Japanese Eastern Pacific Ocean (EPO) longline fishery. The tracked birds foraged largely along the transition zone between the California Current and the Central Pacific Gyre, and spent 25, 24, and 51% of their time at sea within the 200 mile exclusive economic zones (EEZs) of the USA and Mexico, and the high seas (international waters) respectively. The satellite-tracked birds occupied subtropical waters (18-20 °C) targeted by longline fisheries for tuna (<i>Thunnus</i> spp.) and broad-bill swordfish (<i>Xiphias gladius</i>), and ranged disproportionately farther during daylight hours, when tuna fisheries operate. The available data suggest that albatrosses overlap temporally and spatially with longline fisheries in the northeast Pacific Ocean. However, this research cannot directly evaluate whether black-footed albatross bycatch occurs in these fisheries. The coarse temporal (monthly) and spatial (1°×1°) resolution of the fisheries data, and the dynamic nature of the fishing effort inhibited a fine-scale analysis of albatross overlap with longline fisheries. While we documented substantial spatial overlap between albatross distributions and the Japanese Eastern Pacific Ocean longline fishing effort during the 1980s, we found no co-occurrence during the 1990s. This study illustrates the value of satellite telemetry to assess national conservation responsibilities, and to identify potential interactions of protected species with fisheries not currently monitored by observer programs. Furthermore, our results underscore the need to exercise caution when interpreting satellite telemetry data for conservation purposes, because of the highly dynamic nature of pelagic fisheries. These telemetry data were collected through the Argos system, using Telonics ST-10 transmitters (Telonics, Mesa, AZ) programmed to operate on a 90-second repetition rate. Bench-mark tests before transmitter deployment revealed the following median positional errors (in km) for different Argos location quality classes: 1.47 (lc0), 0.77 (lc1), 0.50 (lc2), 0.30 (lc3), 1.86 (lcA), 7.26 (lcB). Class B locations reached errors of up to 50 km. After removing low-quality class B locations the dataset contained 34.81% (lc0), 24.13% (lc1), 11.97% (lc2), 5.52% (lc3), 23.57% (lcA). <br><br> For further information, please refer to the references associated with this dataset. Hyrenbach, D2012https://doi.org/10.82144/653dfc45OBIS-SEAMAP74http://seamap.env.duke.edu/dataset/74OBIS-SEAMAPvector digital dataVersion 1.0.0 ground condition 19970710 19990920 Complete None planned -156.273-116.25943.37323.303-156.273-116.25943.37323.303California Current NoneBlack-footed albatrossPhoebastria nigripesPost-breeding dispersalSatellite telemetryNorth Pacific albatrossesRadio transmittersAnimal movementsNoneCalifornia CurrentPacific OceanNorth Pacific Transition Domain Open public unless otherwise noted. See Use Constraints for details. 1. Not to use data obtained from OBIS-SEAMAP in any publication, product, or commercial application without proper attribution to the original data provider(s) and OBIS-SEAMAP unless the datasets are explicitly shown under the CC0 policy. Citations or credits are suggested as attribution. If the data you downloaded come from multiple datasets, a citation or credit to each of the datasets is required. Suggested citation for this dataset: Hyrenbach, D. 2012. Duke Albatross 1997-1999. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/74) on yyyy-mm-dd. Suggested citation for OBIS-SEAMAP: Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography 22(2):104-115 2. To forward the citation of any publication / report that made use of the data / tools provided by OBIS-SEAMAP for inclusion in our list of references. 3. Not to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. 4. The burden for determining fitness for use of the downloaded data for any analyses lies entirely with the user. OBIS-SEAMAP or the original data providers do not support outcomes of your analyses that used the data you downloaded from OBIS-SEAMAP. 5. To consider inclusion of the accompanying transect (effort) dataset if available into the methodology of your analyses. 6. Not to redistribute the data you downloaded from OBIS-SEAMAP through any media without contect from OBIS-SEAMAP and the original data providers unless the datasets are explicitly shown under the CC0 policy. Shapefile David Hyrenbach Duke University Marine Laboratory mailing and physical address

School of Aquatic and Fishery Sciences

Seattle WA 98195 USA (206) 221-4494 khyrenba@u.washington.edu Duke University Marine Laboratory Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassAves174371OrderCiconiiformes174770FamilyDiomedeidae174513GenusPhoebastria553521SpeciesPhoebastria nigripes554379 Relational databaseHyrenbach, K.D. and R.C. Dotson2003vector digital dataBiological Conservation112: 391-404http://www.seaturtle.org/PDF/Hyrenbach_2003_BiolConserv.pdfHyrenbach, K.D. and R.C. Dotson2001vector digital dataMarine Ornithology29:7-10http://www.marineornithology.org/PDF/29_1/29_1_2.pdfHalpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach2009vector digital dataOceanography22(2):104-115http://www.tos.org/oceanography/article/obis-seamap-the-world-data-center-for-marine-mammal-sea-bird-and-sea-turtle Benjamin BestDuke Universitymailing and physical address

A321 LSRC, Box 90328

DurhamNC27708USA919-613-8021bbest@duke.edu http://www.nbii.gov/ Biological Data Profile 2017030120170301 All observation records are included.Permissible values for date and time and coordinates were validated by the data provider and the OBIS-SEAMAP data manager. Species identification by the data provider was matched with Integrated Taxonomic Information System.Data were put through the OBIS-SEAMAP data registration steps.20120731 OBIS-SEAMAPNicholas School of Environment, Duke Univ.mailing and physical address

A328, LSRC

DurhamNC27708USA919-613-8021seamap-contact@duke.eduNot to hold OBIS-SEAMAP liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. Also please refer to Use Constraints.FreeGo to the OBIS-SEAMAP web sitezipzipped shapefilehttp://seamap.env.duke.edu/dataset/74OBIS-SEAMAP Dataset ID 74GCS_WGS_1984Decimal degrees0.0010.001D_WGS_1984WGS_19846378137.000000298.257224Duke University Marine LaboratoryBiogeographic dataBiogeographic dataNot applicablespeciesSpecies observedData providerSpecies observedgenderGenderData providerGendersexing_methoddefinition not providedData providerdefinition not providedsexing_citationdefinition not providedData providerdefinition not providedageAgeData providerAgeageing_methoddefinition not providedData providerdefinition not providedageing_citationdefinition not providedData providerdefinition not providedtelemetry_techniquedefinition not providedData providerdefinition not providedtag_manufacturerdefinition not providedData providerdefinition not providedtag_modeldefinition not providedData providerdefinition not providedseriesdefinition not providedData providerdefinition not providedtag_id_numberdefinition not providedData provider2853028534repetition_rate_(seconds)definition not providedData providerdefinition not providedduty_cycledefinition not providedData providerdefinition not providedattachment_techniquedefinition not providedData providerdefinition not providedattachment_citationdefinition not providedData providerdefinition not providedinvestigator_namedefinition not providedData providerdefinition not providedcitationdefinition not providedData providerdefinition not providedlocation_quality_classdefinition not providedData providerdefinition not providedaccuracy_metricdefinition not providedData providerdefinition not providedlocation_accuracy_(km)definition not providedData providerdefinition not providedyearYear of observationData providerYear of observationmonthMonth of observationData providerMonth of observationdayDay of observationData providerDay of observationtimezoneTime zoneData providerTime zonehoursHoursData providerHoursminutesMinutesData providerMinutessecondsSecondsData providerSecondslatitudeLatitude of observation in decimal degreesData providerLatitude of observation in decimal degreeslongitudeLongitude of observation in decimal degreesData providerLongitude of observation in decimal degreesgeomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPoidUnique ID number (generated by OBIS-SEAMAP)Data providerUnique ID number (generated by OBIS-SEAMAP)