Harvest control rules (HCRs) are the operational component of a harvest strategy, essentially pre-agreed guidelines that determine how much fishing can take place, based on indicators of the targeted stock’s status. HCRs range from basic, constant catch strategies—under which catch levels do not change—to complicated, multistep rules that set allowable catch based on triggers.
Empirical HCRs: Indicators on which fishing opportunities are set come from one or more direct measures of stock status, such as:
Model-based HCRs: Indicators are based on models, such as:
Stock status can be represented graphically by what is known as a Kobe plot. The example below shows a basic HCR. The fishery’s ideal state is green, its cautionary state is yellow, and the state to avoid is red. The HCR has the following specifications:
Ⓒ 2016 The Pew Charitable Trusts
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Great news! This decision from the Indian Ocean Tuna Commission will help ensure a sustainable future for one of the world’s most valuable fish. https://twitter.com/Hrvststrategies/status/1527703367560179721
BREAKING NEWS: IOTC has officially adopted a management procedure for bigeye tuna, marking the first full MP for any tropical tuna species at a tRFMO. Congratulations IOTC for championing the harvest strategy approach!
https://tinyurl.com/2s35r8u9
La CTOI a officiellement adopté une procédure de gestion pour le thon obèse, adoptant ainsi la première procédure de gestion complète pour les thons tropicaux dans une ORGP thonière. Bravo à la CTOI d’avoir soutenu l’approche par stratégie de capture!
https://tinyurl.com/2s35r8u9
BREAKING NEWS: IOTC has officially adopted a management procedure for bigeye tuna, marking the first full MP for any tropical tuna species at a tRFMO. Congratulations IOTC for championing the harvest strategy approach!
https://tinyurl.com/2s35r8u9
May 19, 2022
harveststrategies.org serves as a resource for fisheries scientists, managers, and other stakeholders, compiling information about how harvest strategies work and how implementing this pioneering management approach can lead to sustainable, profitable fisheries and successful recovery programs for many species around the world. The site is managed by The Ocean Foundation’s International Fisheries Conservation Project.