Article

 

Spatial Scale, Means and Gradients of Hydrographic Variables Define Pelagic Seascapes of Bluefin and Bullet Tuna Spawning Distribution Öffentlichkeit Deposited

Herunterladbarer Inhalt

PDF Herunterladen
https://ir.library.oregonstate.edu/concern/articles/pz50gx76g

Descriptions

Attribute NameValues
Creator
Abstract
  • Seascape ecology is an emerging discipline focused on understanding how features of the marine habitat influence the spatial distribution of marine species. However, there is still a gap in the development of concepts and techniques for its application in the marine pelagic realm, where there are no clear boundaries delimitating habitats. Here we demonstrate that pelagic seascape metrics defined as a combination of hydrographic variables and their spatial gradients calculated at an appropriate spatial scale, improve our ability to model pelagic fish distribution. We apply the analysis to study the spawning locations of two tuna species: Atlantic bluefin and bullet tuna. These two species represent a gradient in life history strategies. Bluefin tuna has a large body size and is a long-distant migrant, while bullet tuna has a small body size and lives year-round in coastal waters within the Mediterranean Sea. The results show that the models performance incorporating the proposed seascape metrics increases significantly when compared with models that do not consider these metrics. This improvement is more important for Atlantic bluefin, whose spawning ecology is dependent on the local oceanographic scenario, than it is for bullet tuna, which is less influenced by the hydrographic conditions. Our study advances our understanding of how species perceive their habitat and confirms that the spatial scale at which the seascape metrics provide information is related to the spawning ecology and life history strategy of each species.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Alvarez-Berastegui, D., Ciannelli, L., Aparicio-Gonzalez, A., Reglero, P., Hidalgo, M., et al. (2014) Spatial Scale, Means and Gradients of Hydrographic Variables Define Pelagic Seascapes of Bluefin and Bullet Tuna Spawning Distribution. PLoS ONE, 9(10), e109338. doi:10.1371/journal.pone.0109338
Journal Title
Journal Volume
  • 9
Journal Issue/Number
  • 10
Urheberrechts-Erklärung
Funding Statement (additional comments about funding)
  • The development of this study was supported by the Project ‘‘PERSEUS’’ financed by the Seventh Framework Program for Research (FP7) under theme‘‘Oceans Tomorrow’’, grant Agreement No. 287600 (http://www.perseus-fp7.eu/), the Spanish Foundation for Science and Technology, under the project‘‘BALEARES’’ Grant number: CTM2009-07944/MAR (http://www.fecyt.es/fecyt/home.do) and the Science, Engineering and Education for Sustainability NSF-Wider Investment (SEES) Research Coordination Network, Grant 1140207 ‘‘Sustainability of Marine Renewable Resources in Subarctic Systems Under Incumbent Environmental Variability and Human Exploitation’’ (http://grantome.com/grant/NSF/OCE-1140207). Hydrographic data used in the study were provided byIBAMAR (http://www.ba.ieo.es/ibamar) a public database founded by the Council for Economy and Competitiveness of the Balearic Islands Government (http://www.caib.es/govern/organigrama/area.do?coduo = 6&lang = es), grant number AAEE0022/08. The research was developed under the framework of the BLUEFINTUNA Project driven by the Balearic Island Observing and Forecasting System (www.socib.es) and the Spanish Institute of Oceanography (www.ieo.es).
Publisher
Peer Reviewed
Language
Replaces

Beziehungen

Parents:

This work has no parents.

Artikel