Publikation:

Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring

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2016

Autor:innen

Mikkelsen, Lonnie
Rigét, Frank F.
Kyhn, Line A.
Sveegaard, Signe
Dietz, Rune
Tougaard, Jakob
Carlström, Julia A. K.
Carlén, Ida
Teilmann, Jonas

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http://nbn-resolving.de/urn:nbn:de:bsz:352-2-1jstwksn25l9k5
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https://doi.org/10.1371/journal.pone.0158788
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CC BY 4.0

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Open Access-Veröffentlichung
Open Access Gold

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Biologie: Publikationen
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Published

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PloS ONE. Public Library of Science (PLoS). 2016, 11(7), e0158788. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0158788

Zusammenfassung

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.

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570 Biowissenschaften, Biologie

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ISO 690MIKKELSEN, Lonnie, Frank F. RIGÉT, Line A. KYHN, Signe SVEEGAARD, Rune DIETZ, Jakob TOUGAARD, Julia A. K. CARLSTRÖM, Ida CARLÉN, Jens C. KOBLITZ, Jonas TEILMANN, 2016. Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring. In: PloS ONE. Public Library of Science (PLoS). 2016, 11(7), e0158788. eISSN 1932-6203. Available under: doi: 10.1371/journal.pone.0158788
BibTex
@article{Mikkelsen2016Compa-50984,
  year={2016},
  doi={10.1371/journal.pone.0158788},
  title={Comparing Distribution of Harbour Porpoises (Phocoena phocoena) Derived from Satellite Telemetry and Passive Acoustic Monitoring},
  number={7},
  volume={11},
  journal={PloS ONE},
  author={Mikkelsen, Lonnie and Rigét, Frank F. and Kyhn, Line A. and Sveegaard, Signe and Dietz, Rune and Tougaard, Jakob and Carlström, Julia A. K. and Carlén, Ida and Koblitz, Jens C. and Teilmann, Jonas},
  note={Article Number: e0158788}
}
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