Integrated ecological–economic fisheries models—Evaluation, review and challenges for implementation

Fish and Fisheries, Journal Year: 2017, Volume and Issue: 19(1), P. 1 - 29

Published: July 7, 2017

Abstract Marine ecosystems evolve under many interconnected and area‐specific pressures. To fulfil society's intensifying diversifying needs while ensuring ecologically sustainable development, more effective marine spatial planning broader‐scope management of resources is necessary. Integrated ecological–economic fisheries models ( IEEFM s) systems are needed to evaluate impacts sustainability potential actions understand, anticipate ecological, economic social dynamics at a range scales from local national regional. make these most effective, it important determine how model characteristics methods communicating results influence the implementation, nature advice that can be provided impact on decisions taken by managers. This article presents global review comparative evaluation 35 s applied ecosystem identify their usefulness, effectiveness implementation. The focus fully integrated allow for feedbacks between ecological human processes although not all reviewed achieve that. Modellers must invest time user friendly participate in fora where explained discussed. Such involvement beneficial parties, leading improvement mo‐dels implementation advice, but demands substantial which built into governance process. It takes develop using requiring long‐term commitment integrating multidisciplinary modelling decision‐making.

Language: Английский

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Social licence in the marine sector: A review of understanding and application

Marine Policy, Journal Year: 2017, Volume and Issue: 81, P. 21 - 28

Published: March 14, 2017

Language: Английский

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Global ecosystem overfishing: Clear delineation within real limits to production

Science Advances, Journal Year: 2019, Volume and Issue: 5(6)

Published: June 1, 2019

The well-documented value of marine fisheries is threatened by overfishing. Management typically focuses on target populations but lacks effective tools to document or restrain overexploitation ecosystems. Here, we present three indices and accompanying thresholds detect delineate ecosystem overfishing (EOF): the Fogarty, Friedland, Ryther indices. These are based widely available readily interpreted catch satellite data that link landings primary production using known limits trophic transfer efficiency. We propose theoretically empirically for each those indices; with these criteria, several ecosystems fished sustainably, nearly 40 50% tropical temperate exceed even extreme thresholds. Applying criteria global results in strong evidence two specific instances EOF, increases both pressure fish a climate-mediated polar shift. show patterns represent EOF.

Language: Английский

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Emergent research and priorities for shark and ray conservation

Endangered Species Research, Journal Year: 2021, Volume and Issue: 47, P. 171 - 203

Published: Nov. 10, 2021

Over the past 4 decades there has been a growing concern for conservation status of elasmobranchs (sharks and rays). In 2002, first elasmobranch species were added to Appendix II Convention on International Trade in Endangered Species Wild Fauna Flora (CITES). Less than 20 yr later, 39 5 I. Despite concern, effective management remain challenged by lack data population many species, human−wildlife interactions, threats viability, efficacy approaches. We surveyed 100 most frequently published cited experts and, based ranked responses, prioritized research questions conservation. To address these questions, we then convened group 47 from 35 institutions 12 countries. The organized into following broad categories: (1) threats, (2) ecology, (3) management. For each section, sought synthesize existing knowledge, describe consensus or diverging views, identify gaps, suggest promising future directions priorities. resulting synthesis aggregates an array perspectives emergent priority

Language: Английский

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Food for thought: pretty good multispecies yield

ICES Journal of Marine Science, Journal Year: 2016, Volume and Issue: 74(2), P. 475 - 486

Published: May 12, 2016

Abstract MSY principles for marine fisheries management reflect a focus on obtaining continued high catches to provide food and livelihoods humanity, while not compromising ecosystems. However, maintaining healthy stocks the maximum sustainable yield single-species basis does ensure that broader ecosystem, economic, social objectives are addressed. We investigate how of “pretty good yield” range fishing mortalities assumed >95% average single stock can be expanded pretty multispecies (PGMY) space further multidimensional accommodate situations where from affects economic benefits, or sustainability. demonstrate in European example PGMY is practical concept. As provides safe operating adheres MSY, it allows consideration other aspects included operational advice both data-rich data-limited situations. furthermore way integrate across stocks, avoiding clearly infeasible combinations, thereby hopefully increasing confidence scientific advice.

Language: Английский

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Changing how we approach fisheries: A first attempt at an operational framework for ecosystem approaches to fisheries management

Fish and Fisheries, Journal Year: 2020, Volume and Issue: 21(2), P. 393 - 434

Published: Jan. 22, 2020

Abstract The increasing need to account for the many factors that influence fish population dynamics, particularly those external population, has led repeated calls an ecosystem approach fisheries management (EAFM). Yet systematically and clearly addressing these factors, hence implementing EAFM, suffered from a lack of clear operational guidance. Here, we propose 13 main (shift in location, migration route or timing, overfishing (three types), decrease physiology, increase predation, competition, prey availability, disease parasites decline habitat quality quantity) can negatively populations via mechanisms readily observable ~20 features. Using features as part diagnostic framework, develop flow charts link probable mechanism(s) underlying change most judicious actions. We then apply framework example case studies have well‐known documented dynamics. To our knowledge, this is first attempt provide defined matrix all responses common influencing populations, examine possible diagnostics simultaneously, comparatively relatively elucidate responsible. aims operationalize thereby not only better diagnosing but also suggesting appropriate interventions, ultimately leading improved fisheries. assert proposed should result both use limited analytical observational resources more tailored effective

Language: Английский

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Deep-sea fisheries as resilient bioeconomic systems for food and nutrition security and sustainable development

Resources Conservation and Recycling, Journal Year: 2023, Volume and Issue: 197, P. 106907 - 106907

Published: June 15, 2023

The frequent deterioration of coastal fisheries has resulted in a need to nourish the world's rapidly expanding population, contributing substantial shift toward fishing mesopelagic zone. These areas contain potentially huge amount fish biomass. Considering that global population will demand an increase 60% food production by 2050, it appears exploiting resources is simply question time. present paper reviews major risks and opportunities related exploitation fisheries. Due significance uncertainties stock resources, environmental biodiversity effects deep-sea fisheries, this inquiry advocates for enhancement sustainable small-sized fishery practices on one hand side moratorium large-scale other hand. Deep seas could provide combating insecurity facilitate improvement nutritional status regions plagued high incidence infant mortality disproportional poverty headcount ratios. For sake regional nutrition security, biological zone legitimate target, whereby sustainability precondition rollout these kinds activities.

Language: Английский

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System-level optimal yield: increased value, less risk, improved stability, and better fisheries

Canadian Journal of Fisheries and Aquatic Sciences, Journal Year: 2017, Volume and Issue: 75(1), P. 1 - 16

Published: Sept. 7, 2017

The discipline and practice of fisheries science management have had an useful, successful, interesting history. has developed over the past century a half into very reductionist, highly quantitative, socially impactful endeavor. Yet given our collective successes in this field, some notable challenges remain. To address these challenges, many proposed ecosystem-based that takes more systematic approach to living marine resources. Here I describe systems theory associated constructs underlying system dynamics, elucidate how aggregate properties can been used, contextualize features relative optimal yield, note produce useful estimates outcomes for management. explore two contrasting examples where not considered, highlighting benefits applying such approach. conclude by discussing ways which we might move forward with portfolio both

Language: Английский

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Searching for responsible and sustainable recreational fisheries in the Anthropocene

Journal of Fish Biology, Journal Year: 2019, Volume and Issue: 94(6), P. 845 - 856

Published: Feb. 19, 2019

Recreational fisheries that use rod and reel (i.e., angling) operate around the globe in diverse freshwater marine habitats, targeting many different gamefish species engaging at least 220 million participants. The motivations for fishing vary extensively; whether anglers engage catch-and-release or are harvest-oriented, there is strong potential recreational to be conducted a manner both responsible sustainable. There examples of well-managed where anglers, angling industry managers behaviours contribute long-term sustainability fish populations sector. Yet, do not vacuum; face threats stressors including harvest from other sectors as well environmental change, defining characteristic Anthropocene. We argue future indeed wild aquatic ecosystems depends on having sustainable (R&S) whilst, possible, addressing, lobbying increased awareness about emanating outside sector (e.g., climate change). Here, we first consider how concepts R&S intersect an increasingly complex socio-cultural context. Next, explore role angler, decision-makers achieving fisheries. extend this idea further by considering consequences without (either because failures related R&S) pertinent case study situated Uttarakahand, India. Unlike number participants relatively small, numerous widespread, such if their actions responsible, they have key voice conservation serve major force good What remains seen will achieved, failure occur point increasing pressure cease, result external threats, effects emerging ethical concerns welfare angled fish.

Language: Английский

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Sustainable reference points for multispecies coral reef fisheries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Sept. 4, 2023

Sustainably managing fisheries requires regular and reliable evaluation of stock status. However, most multispecies reef around the globe tend to lack research monitoring capacity, preventing estimation sustainable reference points against which stocks can be assessed. Here, combining fish biomass data for >2000 coral reefs, we estimate site-specific use these available catch estimates assess status global stocks. We reveal that >50% sites jurisdictions with information have conservation concern, having failed at least one sustainability benchmark. quantify trade-offs between biodiversity, length, ecosystem functions relative key benchmarks highlight ecological benefits increasing sustainability. Our approach yields using environmental conditions, a promising means enhancing world's fisheries.

Language: Английский

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