Global production and economics

Herrick, Samuel; Norton, Jerrold G.; Hannesson, Rögnvaldur; Sumaila, U. Rashid; Ahmed, Mahfuzuddin; Peña-Torres, Julio

doi:10.1017/cbo9780511596681.012

Cited by 13 publications

(12 citation statements)

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“…Simultaneously, the annual global fisheries catch reached a maximum of 130 MT in the mid-1990s and has since fluctuated around 110 MT (Pauly & Zeller 2016). All major stocks of anchovy and sardine have been fully exploited (Herrick et al 2009). The catch of individual stocks of anchovy and sardine has fluctuated in a way that is consistent with fluctuations estimated from scale deposition rates in the geological record, with Namibia a notable exception.…”

Section: Fishing Peaks and Greenhouse Gases Accumulatementioning

confidence: 99%

Climate, Anchovy, and Sardine

Checkley

Asch

Rykaczewski

2017

Annu. Rev. Mar. Sci.

173

129

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Anchovy and sardine populated productive ocean regions over hundreds of thousands of years under a naturally varying climate, and are now subject to climate change of equal or greater magnitude occurring over decades to centuries. We hypothesize that anchovy and sardine populations are limited in size by the supply of nitrogen from outside their habitats originating from upwelling, mixing, and rivers. Projections of the responses of anchovy and sardine to climate change rely on a range of model types and consideration of the effects of climate on lower trophic levels, the effects of fishing on higher trophic levels, and the traits of these two types of fish. Distribution, phenology, nutrient supply, plankton composition and production, habitat compression, fishing, and acclimation and adaptation may be affected by ocean warming, acidification, deoxygenation, and altered hydrology. Observations of populations and evaluation of model skill are essential to resolve the effects of climate change on these fish.

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Section: Fishing Peaks and Greenhouse Gases Accumulatementioning

confidence: 99%

Climate, Anchovy, and Sardine

Checkley

Asch

Rykaczewski

2017

Annu. Rev. Mar. Sci.

173

129

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“…Small pelagic fish stocks, such as anchovy, sardine, herring, and jack mackerel represent an important proportion of world’s marine fish harvests (currently about a third of it, with more than 20 million tons per year worldwide, according to FAO statistics; Herrick et al [2009]). In some fishing nations (e.g., Peru and Chile), fisheries of this type are important resources for their national economies, both in terms of value‐added production as well as for regional employment.…”

Section: Introductionmentioning

confidence: 99%

Harvesting Economic Models and Catch‐to‐biomass Dependence: The Case of Small Pelagic Fish

Gajardo

Peña-Torres

Ramírez

2011

Natural Resource Modeling

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Artículo de publicación ISIP>In the case of small pelagic fish, it seems reasonable to consider harvest functions depending nonlinearly on fishing effort and fish stock. Indeed, empirical evidence about these fish species suggests that marginal catch does not necessarily react in a linear way neither to changes in fishing effort nor in fish stock levels. This is in contradiction with traditional fishery economic models where catch-to-input marginal productivities are normally assumed to be constant. While allowing for nonlinearities in both catch-to-effort and catch-to-stock parameters, this paper extends the traditional single-stock harvesting economic model by focusing on the dependence of the stationary solutions upon the nonlinear catch-to-stock parameter. Thus, we analyze equilibrium responses to changes in this parameter, which in turn may be triggered either by climatic or technological change. Given the focus in this study on the case of small pelagic fish, the analysis considers positive but small values for the catch-to-stock parameter.SticAmSud-CONICYT cooperation program (MIFIMA) FONDECYT 1070297 1080173 ECOS-CONICYT project C07E03 FONDAP in Applied Mathematics BASAL project (CMM U. Chile

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“…Under the circumstances, they may easily choose to overexploit fishing during cycles of abundance in their areas. The decision to cooperate in international management can lead to the conservation of these species and cooperation largely depends on what is known about regime changes in the dynamics of stock related to climate (Herrick et al, 2010). In our analysis we have also come to an important dilemma: perfect information could be detrimental to the resource (Torralba and Besada, 2013), while some degree of uncertainty about what is happening in the fishery may also lead to a more preventive approach.…”

Section: Discussionmentioning

confidence: 99%