Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Modelling and mapping resource overlap between seabirds and fisheries on a global scale: a preliminary assessment
Karpouzi, V.S.; Watson, R.; Pauly, D. (2006). Modelling and mapping resource overlap between seabirds and fisheries on a global scale: a preliminary assessment. CM Documents - ICES, CM 2006(L:01). ICES: Copenhagen. 24 pp.
Deel van: ICES CM Documents - ICES. ICES: Copenhagen. ISSN 1015-4744, meer
Is gerelateerd aan:Karpouzi, V.S.; Watson, R.; Pauly, D. (2007). Modelling and mapping resource overlap between seabirds and fisheries on a global scale: a preliminary assessment. Mar. Ecol. Prog. Ser. 343: 87-99. https://dx.doi.org/10.3354/meps06860, meer
|  |
| Trefwoorden |
Aquatic organisms > Marine organisms > Aquatic birds > Marine birds
Interspecific relationships > Competition
Management > Resource management > Fishery management
Modelling
Resources > Natural resources > Food resources
Marien/Kust |
| Auteurs | | Top |
- Karpouzi, V.S.
- Watson, R.
- Pauly, D.
|
|
|
| Abstract |
Coexistence of foraging seabirds and operating fisheries may result in interactions such as competition for the same prey resources. We used GIS-based modelling at a scale of 0.5 × 0.5° spatial cells to: (1) map the foraging distribution of seabirds; (2) predict their annual food consumption rates in a spatially explicit manner; and (3) estimate a spatially explicit seabird-fisheries overlap index. Information on population size, diet composition and foraging attributes of 351 seabird species was compiled into a Microsoft Access database. Global annual food consumption by seabirds was estimated to be 96.4 million tonnes (95% CI: 78.0 to 114.7 million tonnes), compared with a total catch of nearly 120 million tonnes by all marine fisheries. Krill and cephalopods comprised over 58% of the overall food consumed and fish most of the remainder. The families Procellariidae (albatrosses, petrels, shearwaters) and Spheniscidae (penguins) were responsible for over 54% of the overall food consumption. Seabird foraging distribution maps revealed that areas around New Zealand, the eastern Australian coast, and the sub-Antarctic islands had high species richness. However, temperate and polar regions supported high seabird densities and most food extracted by seabirds originated there. Furthermore, maps of food consumption rates revealed that most food consumed by seabirds was extracted from offshore rather than nearshore waters and from areas where seabird-fisheries overlap was low. The resource overlap maps identified ‘hotspots’ of highest potential for conflict between fisheries and seabirds. Thus, this study may provide useful insight when developing management approaches for designing offshore marine conservation areas. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
