Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [241469] |
Acoustic surveys confirm the high-density areas of harbour porpoises found by satellite tracking
Sveegaard, S.; Teilmann, J.; Berggren, P.; Mouritsen, K.N.; Gillespie, D.; Tougaard, J. (2011). Acoustic surveys confirm the high-density areas of harbour porpoises found by satellite tracking. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 68(5): 929-936. http://dx.doi.org/10.1093/icesjms/fsr025
In: ICES Journal of Marine Science. Academic Press: London. ISSN 1054-3139; e-ISSN 1095-9289, meer
|   |
| Trefwoorden |
Cetacea [WoRMS]; Phocoena phocoena (Linnaeus, 1758) [WoRMS]
Marien/Kust |
| Author keywords |
cetacean, conservation, detection rate, Habitat Directive, kernel home range, monitoring, MPA, Phocoena phocoena, SAC |
| Auteurs | | Top |
- Sveegaard, S.
- Teilmann, J.
- Berggren, P.
|
- Mouritsen, K.N., meer
- Gillespie, D.
- Tougaard, J.
|
|
| Abstract |
The population status of the harbour porpoise (Phocoena phocoena) has long been of concern in European waters. Consequently, the European Commission (EC) Habitats Directive obligates all EC member states to designate marine protected areas (MPAs) for harbour porpoises before 2012. These will be designated areas having the greatest density of porpoises. However, little is known about comparability between the monitoring methods used to examine porpoise distribution and density, and conflicting results may arise, especially when considering their varying sample size and temporal and spatial scales. Here, vessel-based acoustic surveys are seen as an independent method of testing the temporal and spatial permanence of previously identified areas of high density of harbour porpoises found by satellite-tracking them in inner Danish waters. Based on six acoustic surveys, a strong spatial accord was found between the number of acoustic detections of harbour porpoises and their density distribution obtained from 10 years of satellite tracking. The results confirm the presence and permanence of areas of high density of porpoises and validate the two methods for identifying and monitoring future MPAs for the species. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
