Management of Herring, Capelin and Cod in the Greater Barents Sea - Economic Optimal Managment from a Norwegian point of view

In this paper the Norwegian economic gains / costs of rebuilding the Norwegian spring-spawning herring (Clupea harrengus) is analysed by including the effect of the herring stock on the cod (Gadus morhua) and capelin (Mallotus villosus) fishery in the Barents Sea. The herring stock collapsed in the late 1960's and went through a rebuilding period until mid 1990's. The size of the herring spawning stock affects the productivity of cod and capelin. The effects are analysed by combining the existing bioeconomic model for the Barents Sea (AGGMULT/ECONMULT) and a bioeconomic model for herring in the Norwegian Sea. Two management strategies for herring are studied under different levels of cod TAC: 1) The possible harvest control rule proposed by ICES (ICES), and 2) The herring stock is kept at a low level (Low). Present value of contribution margin in the cod fishery and especially capelin fishery increases when the herring stock is at a low level. The reduction of present value of the contribution margin in the herring fishery in the Low strategy causes the total contribution margin to decrease compared to a large herring stock (ICES). In the low herring stock simulations a large herring fishery takes place in the beginning to reduce the herring stock. If this fishery is not included, the difference in total contribution margin increases a lot. Simulation results show that it is not economic optimal for Norway to reduce the herring stock and by the increase the economic gains from cod and capelin fishery.Keywords: Economic multispecies management, cod, herring, capeli

Price Links between Auction and Direct Sales of Fresh and Frozen Fish in North Norway (1997–2003)

In North Norway the dominant method of exchange for fresh and frozen fish at the ex-vessel level is by direct (contract) sale, whereby price is negotiated between fish processors and the fishermen. More recently, an auction for frozen fish has been introduced. In this paper we investigate the relationship of prices between these methods of exchange and, in particular, whether the prices develop in a stable pattern between auction and direct sale by means of a cointegration analysis. Monthly prices of size-graded cod and haddock landed in the period 1997–2003 are analysed. For most months, frozen fish sold through auctions realised the highest price, followed by direct sales of fresh and frozen, respectively. Fish sold by auction exhibits a larger monthly variation in price than fish sold directly. Prices for cod were cointegrated to a larger degree than for haddock, and the cointegration was strongest for frozen cod. The analysis also demonstrates that the auction prices for frozen cod and haddock drive the direct sale prices of similar fish, both frozen and fresh, even though the quantity sold via direct sales is greater than that of auctions. Law of one price (LOP) and weak exogeneity were present for cod and haddock.Market linkages, cointegration, auction sale, direct sale, fresh fish, frozen fish, cod, haddock, North Norway, Resource /Energy Economics and Policy, Q22, C32, D44,

Price links between auction and direct sales of fresh and frozen fish in North Norway (1997-2003)

In North Norway the dominant method of exchange for fresh and frozen fish at the ex-vessel level is by direct (contract) sale, whereby price is negotiated between fish processors and the fishermen. More recently, an auction for frozen fish has been introduced. In this paper we investigate the relationship of prices between these methods of exchange and, in particular, whether the prices develop in a stable pattern between auction and direct sale by means of a cointegration analysis. Monthly prices of size-graded cod and haddock landed in the period 1997- 2003 are analysed. For most months, frozen fish sold through auctions realised the highest price, followed by direct sales of fresh and frozen, respectively. Fish sold by auction exhibits a larger monthly variation in price than fish sold directly. Prices for cod were cointegrated to a larger degree than for haddock, and the cointegration was strongest for frozen cod. The analysis also demonstrates that the auction prices for frozen cod and haddock drive the direct sale prices of similar fish, both frozen and fresh, even though the quantity sold via direct sales is greater than that of auctions. Law of one price (LOP) and weak exogeneity were present for cod and haddock

Price links between auction and direct sales of fresh and frozen fish in North Norway (1997-2003)

In North Norway the dominant method of exchange for fresh and frozen fish at the ex-vessel level is by direct (contract) sale, whereby price is negotiated between fish processors and the fishermen. More recently, an auction for frozen fish has been introduced. In this paper we investigate the relationship of prices between these methods of exchange and, in particular, whether the prices develop in a stable pattern between auction and direct sale by means of a cointegration analysis. Monthly prices of size-graded cod and haddock landed in the period 1997- 2003 are analysed. For most months, frozen fish sold through auctions realised the highest price, followed by direct sales of fresh and frozen, respectively. Fish sold by auction exhibits a larger monthly variation in price than fish sold directly. Prices for cod were cointegrated to a larger degree than for haddock, and the cointegration was strongest for frozen cod. The analysis also demonstrates that the auction prices for frozen cod and haddock drive the direct sale prices of similar fish, both frozen and fresh, even though the quantity sold via direct sales is greater than that of auctions. Law of one price (LOP) and weak exogeneity were present for cod and haddock

Market-oriented regional fisheries management - An analysis of four fish regions in the North Atlantic

What influence do exchange methods have on ex-vessel prices and what are the potential implications for the regional management of the fisheries? This paper undertakes an empirical analysis of exchange methods and ex-vessel prices for specific demersal fish controlled for fish size and quantity in four North Atlantic regions, including Iceland, North-Norway and Scotland. The methodology consists of a comparative analysis of total average price (TAP) and Anova analysis of monthly average prices of cod and plaice landed fresh during the period 1990-1999. Scotland's auctions have the highest TAPs for the species analysed whilst the lowest TAPs are returned from contract sales in Iceland and North-Norway. Icelandic auctions and More-Romsdal auctions adopt intermediate positions in this price hierarchy. Price differences are still present even when correcting for factors such as legal barriers, transport costs - from different geographical locations, exchange fees and seasonal variations in supplies. The implications of these findings for current and prospective systems of regional resource and coastal management are then considered and the scope and need for further study is established