Records at sea of juveniles southern elephant seals (Mirounga leonina) from Península Valdés, Argentina
This resource contains satellite-tracked locations obtained through Argos system from juveniles of southern elephant seal of Península Valdés, Argentina, during the pelagic phase in the South Atlantic and South Pacific oceans. The dataset encompasses the satellite positions of tags deployed on 6 males and 7 females in 2004 and 2005 winter haul out (July-August), and 18 males and 7 females in 2003, 2005 to 2007 summer haul out (December-January). A filter was applied to delete unrealistic locations.
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 19,242 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Lewis M, Campagna C (2016): Records at sea of juveniles southern elephant seals (Mirounga leonina) from Península Valdés, Argentina. v1.0. ArOBIS Centro Nacional Patagónico. Dataset/Samplingevent. http://arobis.cenpat-conicet.gob.ar:8081/resource?r=mleonina_juv&v=1.0
Researchers should respect the following rights statement:
The publisher and rights holder of this work is ArOBIS Centro Nacional Patagónico. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
Samplingevent; Southern elephant seal; Juveniles; satellite tracking; SW Atlantic Ocean; South Pacific Ocean; Patagonia; locations at sea
Who created the resource:
Who can answer questions about the resource:
Who filled in the metadata:
Who else was associated with the resource:
The geographic coverage includes the Patagonian shelf, from the edge of the Patagonian shelf and to the Argentine Basin in the SW Atlantic Ocean, and South Pacific area. Mixed subtropical-subpolar waters characterize five oceanographic regimes in terms of water masses, currents and productivity. 1) Open continental shelf waters of subantarctic origin. 2) Shelf break front a narrow transition region between subpolar (Malvinas/Falkland Current) and shelf waters. 3) Subtropical waters carried by the Brazil Current collide with the cold-fresh subpolar waters of the Malvinas Current. It is characterized by enhanced meridional gradients of sea surface temperature and salinity, and its location has high seasonal and interannual variability. 4) Subpolar characterized by low salinity, cold temperatures and high concentrations of nutrients. 5) Polar with low temperature (<4 °C) and relatively high nutrient concentration waters derived from the Antarctic Circumpolar Current.
|Bounding Coordinates||South West [-58.75, -81.68], North East [-34.52, -27.86]|
The resource includes a unique specie. Scientific Name: Mirounga leonina (Linnaeus, 1758) Common Name (s): Southern Elephant Seal, South Atlantic Elephant-seal, Southern Elephant-seal (English). Eléphant De Mer Austral, Eléphant De Mer Du Sud (French). Elefante Marino Del Sur (Spanish)
|Species||Mirounga leonina (Southern elephant seal)|
|Start Date / End Date||2003-11-20 / 2004-02-01|
|Start Date / End Date||2004-07-12 / 2004-12-02|
|Start Date / End Date||2005-07-26 / 2006-08-02|
|Start Date / End Date||2006-12-28 / 2007-10-17|
Satellite tags (SPOT4/SPOT5, Wildlife Computers, Redmond, Washington, http://www.wildlifecomputers.com) were deployed on juveniles southern elephant seals, during haul out at Península Valdés, Patagonia, Argentina. Tags were configured to send information through Argos System as soon as the animals entered the water.
|Study Extent||Records coverage the positions at sea during the foraging pelagic trip that includes the Patagonian shelf, from the edge of the Patagonian shelf and to the Argentine Basin in the SW Atlantic Ocean, and South Pacific area. Most of the records of each animal are one trip from and to Peninula Valdes. Each location was provided by the Argos System (http://www.cls.fr) and the frequency depended of the behavior of elephant seals at sea and their time surface intervals.|
|Quality Control||The behavior of elephant seals at sea and their short surface intervals precludes high accuracy with position fixes. An filter was applied to reject records that would require a travel rate greater than 2.8 m/s (10 km/h).|
Method step description:
- Instruments (Wildlife Computers, Redmond, Washington; instrument description at: http://www.wildlifecomputers.com.) were glued directly on the fur of the head using a 10-min setting epoxy resin (Campagna et al., 1999). Anesthesia protocols to deploy and recover instruments were described in Campagna et al. (1995, 1998, 1999). Tags were configured to send information as soon as the animals entered the water, 24 h per day with repetition rates of 45±6 s in 2003-2004 and 40±6 s in 2005-2006. Locations were received daily via e-mail; Argos provide the estimated accuracy of each location, however, a filter was applied to exclude locations that would require an unrealistic travel rate.
- Campagna, C.; Piola, A.R.;Marin, M.R.; Lewis, M.; Fernández, T. 2006. Southern elephant seal trajectories, fronts and eddies in the Brazil/Malvinas Confluence, Deep Sea Research Part I Oceanographic Research Papers 53(12):1907-1924, December 2006. doi:10.1016/j.dsr.2006.08.015
- Campagna, C.; Piola, A.R.; Marin M.R.; Lewis, M.N.; Zajaczkovski, U.; Fernández, T. 2007. Deep divers in shallow seas: southern elephant seals on the Patagonian Shelf. Deep-Sea Research I 54:1792–1814. doi:10.1016/j.dsr.2007.06.006
- Campagna, C.; Fedak, M.; Lewis, M.; Thompson, D.; Trathan, P.; Staniland, I.; Wilson, R.; Marín, M.R.; Falabella, V. 2009. Pinípedos IN Atlas del Mar Patagónico. Especies y Espacios Lugar: Buenos Aires; Año: 2009; p. 202 – 237. Online: http://www.atlas-marpatagonico.org
- Eder, E.; Lewis, M.; Campagna, C.; Koch, P. 2010. Evidence of demersal foraging from stable isotope analysis of juvenile elephant seals from Patagonia. Marine Mammal Science, 26 (2), 430-442. DOI: 10.1111/j.1748-7692.2009.00347.x
- Eder, E.B., Lewis, M.N.; Marín, M.R.; Campagna, C. 2011. On- and off-shelf diving effort of juvenile elephant seals from Península Valdés determined by light loggers. Journal of Mammalogy 92(4): 811-818. DOI: 10.1644/10-MAMM-A-292.1
- Lewis, M.; Campagna, C. 2007. Mamíferos Marinos IN Atlas de Sensibilidad Ambiental de la Costa y el Mar Argentino, D. Boltovskoy (ed.). Secretaría de Ambiente y Desarrollo Sustentable de la Nación. Buenos Aires.
- Campanga, C.; Lewis, M. 2008. Mamíferos Marinos IN Foro para la Conservación del Mar Patagónico y Áreas de Influencia. 2008. Estado de conservación del Mar Patagónico y áreas de influencia. Puerto Madryn, Argentina, Edición del Foro. Online: www.marpatagonico.org, http://www.marpatagonico.org/libro/articulo.php?id=lewis-campagna-mamiferos-marinos
marine, harvested by iOBIS