Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring
| Autor: | Frank Rigét, Signe Sveegaard, Lonnie Mikkelsen, Jens C. Koblitz, Ida Carlén, Jakob Tougaard, Rune Dietz, Jonas Teilmann, Line A. Kyhn, Julia Carlström |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Satellite tracking Salinity Topography Marine and Aquatic Sciences lcsh:Medicine 01 natural sciences Physical Chemistry Abundance (ecology) Telemetry Environmental monitoring Phocoena lcsh:Science computer.programming_language Mammals education.field_of_study Multidisciplinary spatial distribution biology Ecology Physics Habitats Chemistry Oceanography Harbour Vertebrates Physical Sciences Harbour porpoise Environmental Monitoring Research Article C-POD Baltic Sea Bioacoustics Population Marine Biology Porpoises 010603 evolutionary biology Bodies of water Sea Water biology.animal ddc:570 Animals MaxEnt 14. Life underwater education Marine Mammals Ecosystem Demography Ekologi Landforms 010604 marine biology & hydrobiology Ecology and Environmental Sciences lcsh:R Organisms Biology and Life Sciences Shores Geomorphology Acoustics biology.organism_classification Fishery Chemical Properties Amniotes Earth Sciences lcsh:Q Hydrology computer Porpoise |
| Zdroj: | PLoS ONE, Vol 11, Iss 7, p e0158788 (2016) PLoS ONE Mikkelsen, L, Riget, F F, Kyhn, L A, Sveegaard, S, Dietz, R, Tougaard, J, Carlström, J, Carlén, I, Koblitz, J & Teilmann, J 2016, ' Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring ', PLOS ONE, vol. 11, no. 7 . https://doi.org/10.1371/journal.pone.0158788 |
| Popis: | Cetacean monitoring is essential in determining the status of a population. Different monitoring methods should reflect the real trends in abundance and patterns in distribution, and results should therefore ideally be independent of the selected method. Here, we compare two independent methods of describing harbour porpoise (Phocoena phocoena) relative distribution pattern in the western Baltic Sea. Satellite locations from 13 tagged harbour porpoises were used to build a Maximum Entropy (MaxEnt) model of suitable habitats. The data set was subsampled to one location every second day, which were sufficient to make reliable models over the summer (Jun-Aug) and autumn (Sep-Nov) seasons. The modelled results were compared to harbour porpoise acoustic activity obtained from 36 static acoustic monitoring stations (C-PODs) covering the same area. The C-POD data was expressed as the percentage of porpoise positive days/hours (the number of days/hours per day with porpoise detections) by season. The MaxEnt model and C-POD data showed a significant linear relationship with a strong decline in porpoise occurrence from west to east. This study shows that two very different methods provide comparable information on relative distribution patterns of harbour porpoises even in a low density area. published |
| Databáze: | OpenAIRE |
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