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Investigation of Sp...
Investigation of Spatiotemporal Patterns of Harbour Porpoise (Phocoena phocoena) Strandings in Swedish Waters for Improved Monitoring and Management
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- Ulfsson, Vigge (författare)
- Uppsala universitet,Institutionen för biologisk grundutbildning,Biology Education Centre, Uppsala University, SE-752 36 Uppsala, Sweden
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- Kim, Hyeyoung (författare)
- Swedish Vet Agcy, Dept Epidemiol Surveillance & Risk Assessment, SE-75189 Uppsala, Sweden.,Department of Epidemiology, Surveillance and Risk Assessment, Swedish Veterinary Agency, SE-751 89 Uppsala, Sweden
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- Cervin, Linnea (författare)
- Swedish Museum Nat Hist, Dept Environm Monitoring & Res, SE-10405 Stockholm, Sweden.,Department of Environmental Monitoring and Research, Swedish Museum of Natural History, SE-104 05 Stockholm, Sweden
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- Roos, Anna (författare)
- Swedish Museum Nat Hist, Dept Environm Monitoring & Res, SE-10405 Stockholm, Sweden.,Department of Environmental Monitoring and Research, Swedish Museum of Natural History, SE-104 05 Stockholm, Sweden
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- Neimanis, Aleksija (författare)
- Swedish Vet Agcy, Dept Pathol & Wildlife Dis, SE-75189 Uppsala, Sweden.,Department of Pathology and Wildlife Diseases, Swedish Veterinary Agency, SE-751 89 Uppsala, Sweden
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(creator_code:org_t)
- MDPI, 2024
- 2024
- Engelska.
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Ingår i: OCEANS-SWITZERLAND. - : MDPI. - 2673-1924. ; 5:2, s. 166-180
- Relaterad länk:
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https://doi.org/10.3...
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https://uu.diva-port... (primary) (Raw object)
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https://nrm.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Harbour porpoises (Phocoena phocoena) are the only cetacean residents found year-round in Swedish waters and they are exposed to numerous natural and anthropogenic threats. Since the in situ monitoring of cetaceans can be difficult, invasive and often expensive, investigation of stranding patterns and examination of stranded animals can be used as a cost-effective source of data to study these elusive animals. The aim of this study was to investigate the spatiotemporal patterns of harbour porpoise stranding reports and the possible underlying causes in Swedish waters over a ten-year period (2014-2023). Additionally, the Swedish stranding network plays a key role in the collection of stranded carcasses for health and disease surveillance, and geographic coverage of the network also was analysed. When making spatial comparisons, the ten-year period was divided into two five-year blocks. Data on 854 stranded harbour porpoises were analysed from the coasts of the Skagerrak, Kattegat, and Baltic Seas. Both significant spatial and temporal patterns could be identified. Strandings peaked in July through September and hotspots occurred along most of the Swedish west coast, with the most frequent hotspots located around & Ouml;resund and especially the area around the Kullen peninsula. The spatial patterns of strandings found in this study are consistent with data on porpoise abundance, prey abundance, and gillnet fisheries' efforts. The latter is known to be one of the primary causes of porpoise mortality. Furthermore, the coverage of the Swedish stranding network increased between the two periods, likely reflecting an increased awareness of the carcass-based surveillance program, and gaps requiring network expansion efforts were identified. These results also provide baseline data to enable the continued monitoring of stranding trends, as changes may indicate changes in population distribution, size or mortality rates.
Ämnesord
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- harbour porpoise
- stranding
- Phocoena phocoena
- cetacean
- marine mammal
- wildlife monitoring
- wildlife health surveillance
- spatiotemporal patterns
- gillnet fisheries
- Man and the environment
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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