0000000000541429
AUTHOR
Jan Atle Knutsen
showing 5 related works from this author
Lobster and cod benefit from small-scale northern marine protected areas: inference from an empirical before - after control-impact study
2013
Published version of an article from the journal: Proceedings of the Royal Society B-Biological Sciences. Alsop available from the Royal Society: http://dx.doi.org/10.1098/rspb.2012.2679 Open Access Marine protected areas (MPAs) are increasingly implemented as tools to conserve and manage fisheries and target species. Because there are opportunity costs to conservation, there is a need for science-based assessment of MPAs. Here, we present one of the northernmost documentations of MPA effects to date, demonstrated by a replicated before-after control-impact (BACI) approach. In 2006, MPAs were implemented along the Norwegian Skagerrak coast offering complete protection to shellfish and parti…
Lobster reserves as a management tool in coastal waters: Two decades of experience in Norway
2022
9 pages, 4 figures.-- Under a Creative Commons license
Replicated marine protected areas (MPAs) support movement of larger, but not more, European lobsters to neighbouring fished areas
2018
The European lobster Homarus gammarus is heavily exploited in the Norwegian fishery, and several management actions have been implemented to protect the species. Three marine protected areas (MPAs) excluding all but hook and line type fishing gear were established along the Skagerrak coast in 2006, effectively banning the trap-based fishery for European lobster. Lobster populations within MPAs and adjacent control areas were studied by capture-mark-recapture and recovery methods every year from prior to MPA establishment to the present. During 2006-2014, a total of 4682 and 3317 lobsters were captured (including recaptures) in the MPAs and control areas, respectively. In all MPAs, protectio…
Restoration of Abundance and Dynamics of Coastal Fish and Lobster Within Northern Marine Protected Areas Across Two Decades
2021
This article reviews a suite of studies conducted in a network of coastal Marine Protected Areas (MPAs) in Skagerrak, Southeast Norway. In 2006, Norway’s first lobster reserves were implemented, with the aim of protecting European lobster (Homarus gammarus) through a ban on fixed gear. A before–after control-impact paired series (BACIPS) monitoring program was initiated to evaluate effects of protection on depleted lobster populations. Experimental trapping and capture-recapture techniques were combined to track demography of populations, also including movement of individuals within and beyond MPAs and adjacent control areas. Further, population genetics and parentage studies were applied,…
Mulighetskartlegging for kystbaserte næringer i Agder
2017
I Agder er det et sterkt ønske fra kystkommunene om å tilrettelegge for blå vekst i regionen, men for å realisere dette målet er det behov for faktisk kunnskap om hvilke muligheter havet gir – og utelukker – langs hele Agder-kysten. En slik kartlegging vil være et viktig beslutningsgrunnlag for utvikling av næring knyttet til marin sektor i regionen. Dette danner bakgrunnen for prosjektet «Mulighetskartlegging for kystbaserte næringer i Agder» som er gjennomført i samarbeid mellom NIVA og Havforskningsinstituttet. Målet med prosjektet har vært å (1) Kartlegge naturgitte næringsmuligheter innenfor marin sektor langs Agderkysten, (2) Formidle kunnskap om hvilke muligheter havet gir – og utelu…