The Norwegian Spring-Spawning Herring Fishery: A Stylized Game Model

Árnason, Ragnar; Magnússon, Gylfi; Agnarsson, Sveinn

doi:10.1086/mre.15.4.42629328

Cited by 55 publications

(49 citation statements)

References 17 publications

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“…Prior studies on shared fisheries management have tended to examine co-operative arrangements for specific stocks, e.g. Norwegian herring (Arnason et al 2000), northeast Atlantic cod (Armstrong & Sumaila 2000), and tuna (Sumaila & Huang 2012). While McWhinnie (2009) conducted a global analysis of shared fish stocks, her study focused on the effect of sharing on the exploitation status of fish stocks.…”

Section: Introductionmentioning

confidence: 99%

Trends in global shared fisheries

Teh¹,

Sumaila²

2015

Mar. Ecol. Prog. Ser.

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Shared fisheries involve fish that are caught in the marine waters of more than one country, or in the high seas. These fisheries are economically and biologically significant, but a global picture of their importance relative to total world fisheries catch and economic value is lacking. We address this gap by undertaking a global-scale analysis of temporal trends in shared fisheries species catch and landed value from 1950 to 2006. We find that (1) the number of countries participating in shared fisheries has doubled in the past 55 yr; (2) the most commonly targeted shared species have shifted from those that were mainly restricted to the North Atlantic to species that are highly migratory and are distributed throughout the world; (3) countries which account for the highest proportion of global shared fish species catch and landed value tend to be large industrial fishing powers, whereas those which are most reliant on shared fisheries at a national scale are mainly smaller developing countries. Overall, our findings indicate the increasing need to accommodate a greater number and diversity of interests, and also consider equity issues in the management and allocation of internationally shared fishery resources.

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Section: Introductionmentioning

confidence: 99%

Trends in global shared fisheries

Teh¹,

Sumaila²

2015

Mar. Ecol. Prog. Ser.

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“…For mackerel and blue whiting the single species intrinsic growth rates are estimated to lie between 0.3 to 0.4 (Ekerhovd 2003;Hannesson 2013), and for herring the rate is estimated in the range 0.4 to 0.5 (Arnason et al, 2000). However, here the growth equations are modi ed logistic functions, and the intrinsic growth rates must be scaled accordingly.…”

Section: Modeling the Norwegian Sea Pelagic Complexmentioning

confidence: 99%

Up the ante on bioeconomic submodels of marine food webs: A data assimilation-based approach

Ekerhovd¹,

Kvamsdal²

2017

Ecological Economics

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SNF SAMFUNNS-OG NAERINGSLIVSFORSKNING AS-er et selskap i NHH-miljøet med oppgave å initiere, organisere og utføre eksternfinansiert forskning. Norges Handelshøyskole og Stiftelsen SNF er aksjonaerer. Virksomheten drives med basis i egen stab og fagmiljøene ved NHH.SNF er ett av Norges ledende forsk ningsmiljø innen anvendt økonomisk-administrativ forskning, og har gode samarbeidsrelasjoner til andre forskningsmiljøer i Norge og utlandet. SNF utfører forskning og forsknings baserte utredninger for sentrale beslutningstakere i privat og offentlig sektor. Forskningen organiseres i programmer og prosjekter av langsiktig og mer kortsiktig karakter. Alle publikasjoner er offentlig tilgjengelig. SNF CENTRE FOR APPLIED RESEARCH AT NHH-is a company within the NHH group. Its objective is to initiate, organize and conduct externally financed research. The company shareholders are the Norwegian School of Economics (NHH) and the SNF Foundation. Research is carried out by SNF´s own staff as well as faculty members at NHH. SNF is one of Norway´s leading research environment within applied economic administrative research. It has excellent working relations with other research environments in Norway as well as abroad. SNF conducts research and prepares research-based reports for major decision-makers both in the private and the public sector. Research is organized in programmes and projects on a long-term as well as a short-term basis. All our publications are publicly available. While economists have discussed ecosystem-based management and similar concepts, little attention has been devoted to the art of modeling. Models of ecosystems or foodwebs that make economic analysis viable should capture as much as possible of system structure and dynamics while balancing biological and ecological detail against dimensionality and model complexity. Relevant models need a strong, empirical content, but data availability may inhibit modeling e orts. Models are bound to be nonlinear, and model and observational uncertainty should be observed. We suggest the data assimilation method ensemble Kalman ltering to improve modeling of ecosystems or foodwebs. To illustrate the method, we model the dynamics of the main, pelagic species in the Norwegian Sea. In order to reduce the parameter dimensionality, the species are modeled to rely on a common carrying capacity.We also take further methodological steps to deal with a still high number of parameters.Our best model captures much of the observed dynamics in the sh stocks, but the estimated model error is moderate.

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“…There was free access into the Norwegian purse seine fishery until the late 1960s, when the Norwegian spring spawning herring stock collapsed (Bjorndal and Gordon 2001), likely due to a combination of overfishing and deteriorating environmental conditions (Arnason et al 2001). A series of buyback programmes targeting different vessel types have been implemented in Norway since 1979.…”

Section: Norway Purse Seine Fisherymentioning

confidence: 99%

Having it all: can fisheries buybacks achieve capacity, economic, ecological, and social objectives?

Teh

Hotte²,

Sumaila

2017

Maritime Studies

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The objective of this study is to assess the performance of fishery buybacks so as to determine the conditions under which positive socio-economic outcomes can occur during the process of fisheries adjustments. We do this by conducting a desk top review and supplementing the literature with targeted interviews with experts who have direct knowledge or experience with the implementation of buybacks. We focus on four case studies: Australia, the United States, British Columbia (Canada), and Norway. The outcome of each buyback was assessed in terms of the extent to which it achieved its capacity, economic, ecological, and social objectives. Our results indicate that buybacks can be successful in achieving specific programme objectives, such as reducing fishing capacity and increasing economic profits, at least in the short term. However, none of the buybacks evaluated were a resounding success due to the presence of latent permits or licences, effort creep, and continued reinvestment in the fishery. Enabling conditions for positive social outcomes included a strong economy, accountable leadership, and social assistance programmes tailored to local fishing communities. This study is useful in informing future buyback programmes' design and implementation.

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The Norwegian Spring-Spawning Herring Fishery: A Stylized Game Model

Cited by 55 publications

References 17 publications

Trends in global shared fisheries

Trends in global shared fisheries

Up the ante on bioeconomic submodels of marine food webs: A data assimilation-based approach

Having it all: can fisheries buybacks achieve capacity, economic, ecological, and social objectives?

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