Top predator status and trends: ecological implications, monitoring and mitigation strategies to promote ecosystem-based management

Frontiers in Marine Science, Год журнала: 2024, Номер 11

Опубликована: Май 13, 2024

The conservation and management of marine ecosystems hinge on a comprehensive understanding the status trends top predators. This review delves into ecological significance predators, examining their roles in maintaining ecosystem stability functioning through an integrated analysis current scientific literature. We first assess efficacy various monitoring methods, ranging from traditional field observations to cutting-edge technologies like satellite tracking environmental DNA (eDNA) evaluating strengths limitations terms accuracy, spatial coverage, cost-effectiveness, providing resource managers with essential insights for informed decision-making. Then, by synthesizing data diverse ecosystems, this study offers overview affecting predator populations worldwide. explore multifaceted impacts human activities, climate change, habitat degradation abundance distribution these key species. In doing so, we shed light broader implications declining populations, such as trophic cascades altered community structures. Following thorough assessment successful strategies reversing decline compilation recommendations is presented, encompassing effective governance interventions. A crucial aspect ecosystem-based implementation robust strategies. Mitigation measures are imperative reverse adverse present array mitigation options based case studies. These include establishment protected areas, enforcement fisheries regulations, promotion sustainable fishing practices. deepen synergies between potential mitigate human-induced stressors safeguard pivotal role structure function. By predators’ significance, analyzing population trends, discussing techniques, outlining strategies, provide researchers, policymakers, stakeholders engaged fostering approaches. conclude that integrating frameworks will be both predators environment future generations.

Язык: Английский

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Machine-learning aiding sustainable Indian Ocean tuna purse seine fishery

Ecological Informatics, Год журнала: 2024, Номер 81, С. 102577 - 102577

Опубликована: Март 26, 2024

Among the various challenges facing tropical tuna purse seine fleet are need to reduce fuel consumption and carbon footprint, as well minimising bycatch of vulnerable species. Tools designed for forecasting optimum fishing grounds can contribute adapting changes in fish distribution due climate change, by identifying location new suitable grounds, thus reducing search time. While information about high probability find species could result a reduction. The present study aims at contributing more sustainable cleaner fishing, i.e. catching same amount target with less consumption/emissions lower bycatch. To achieve this, catches species, silky shark accidental have been modelled machine learning models Indian Ocean using inputs historical catch data these fleets environmental data. resulting show an accuracy 0.718 0.728 SKJ YFT, being absences (TPR = 0.996 0.993 respectively) better predicted than or low catches. In case BET, which is not main this fleet, that previous Regarding shark, presence/absence model provides 0.842. Even though model's performance has room improvement, work lays foundations process avoiding only input forecast provided near real time earth observation programs. future be improved knowledge conditions influencing becomes available.

Язык: Английский

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Climate change to drive increasing overlap between Pacific tuna fisheries and emerging deep-sea mining industry

npj Ocean Sustainability, Год журнала: 2023, Номер 2(1)

Опубликована: Июль 11, 2023

Abstract In ocean areas beyond national jurisdiction, various legal regimes and governance structures result in diffused responsibility create challenges for management. Here we show those are set to expand with climate change driving increasing overlap between eastern Pacific tuna fisheries the emerging industry of deep-sea mining. Climate models suggest that distributions will shift coming decades. Within Clarion-Clipperton Zone Ocean, a region containing 1.1 million km 2 mining exploration contracts, total biomass bigeye, skipjack, yellowfin species forecasted increase relative today under two tested climate-change scenarios. Percentage increases 10–11% 30–31% 23% yellowfin. The interactions mining, fish populations, complex unknown. However, these projected indicate potential conflict resultant environmental economic repercussions be exacerbated climate-altered ocean. This has implications holistic sustainable management this area, pathways suggested closing critical gaps.

Язык: Английский

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Toward Digitalization of Fishing Vessels to Achieve Higher Environmental and Economic Sustainability

ACS Environmental Au, Год журнала: 2024, Номер 4(3), С. 142 - 151

Опубликована: Янв. 24, 2024

Fishing vessels need to adapt and mitigate climate changes, but solution development requires better information about the environment vessel operations. Even if ships generate large amounts of potentially useful data, there is a variety sources formats. This lack standardization makes identification use key data challenging hinders its in improving operational performance design. The work described this paper aims provide cost-effective tools for systematic acquisition fishing vessels, supporting digitalization operation monitoring. needed facilitate reduction emissions as critical environmental problem industry costs sustainability. resulting monitoring system interfaces onboard systems sensors, processes it available shared space. From space, 209 signals are recorded at different frequencies uploaded onshore servers postprocessing. collected describe both ship operation, energy system, surrounding environment. Nine oceanographic variables have been preselected be public scientific repositories, such Copernicus EMODnet. also used fuel prediction models, species distribution route optimization models.

Язык: Английский

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Overcapacity and dynamics of a tuna fleet facing catch limits and high efficiency: the case of the Indian Ocean tuna fishery

Reviews in Fish Biology and Fisheries, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Язык: Английский

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The use of Atlantic seascapes for marine protected areas planning in the context of the marine biological diversity of areas beyond National Jurisdiction agreement

Marine Pollution Bulletin, Год журнала: 2025, Номер 214, С. 117776 - 117776

Опубликована: Март 6, 2025

Язык: Английский

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Climate Change, Sustainable Food Systems, and Community-Based Adaptation: Resilience Strategies in the Global South

Опубликована: Янв. 1, 2025

Язык: Английский

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Hedonic price model of Hawaiʻi ʻAhi Tuna (Thunnus obesus and Thunnus albacares) market: Implications of climate change and shark depredation

PLOS Climate, Год журнала: 2025, Номер 4(3), С. e0000595 - e0000595

Опубликована: Март 28, 2025

In Hawaiʻi, the prices of ʻ ahi tuna, i.e., bigeye tuna ( Thunnus obesus ) and yellowfin albacares ), are influenced by numerous factors. This study utilizes a hedonic price model to estimate using fish characteristics, trip-specific information, daily market conditions, foreign imports, individual seller effects, time effects. Sea surface temperature (SST) at fishing location trip length used as proxies for quality. Higher SST longer associated with lower prices, reflecting their negative impact on The provides important implications climate change future in Hawaiʻi. addition higher SST, impacts habitat, leading increased vessel travel distances; climate-induced reductions body size; effects abundance, biomass, spatial distribution, catchability, which affect supply—all have significant prices. also estimates shark depredation assesses its effect revenue.

Язык: Английский

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Yapay Zeka Uygulamalarının Mavi Yüzgeçli Orkinos (Thunnus Thynnus (Linnaeus, 1758))’un Avcılığı ve Yetiştiriciliği’nin Rolü

Menba Kastamonu Üniversitesi Su Ürünleri Fakültesi Dergisi, Год журнала: 2025, Номер 11(1), С. 96 - 115

Опубликована: Март 28, 2025

Yapay Zeka (AI); öğrenme, problem çözme ve karar verme gibi tipik olarak insan zekası gerektiren görevleri yerine getirebilen bilgisayar sistemlerinin geliştirilmesi uygulanması anlamına gelmektedir son yıllarda birçok sektörde kullanımı yaygınlaşmıştır. zeka; balık yetiştiriciliğinde büyümesi sağlığının anlaşılmasını yönetimini önemli ölçüde artırabilecek gerçek zamanlı izleme, veri analitiği, tahmine dayalı modelleme destek sistemleri için fırsatlar sunmaktadır. zekanın orkinos avcılığı et kalitesinin belirlenmesinde de kullanılmaya başlandığı görülmektedir. Ton balığının kalitesini değerlendiren bir AI sistemi olan TUNA SCOPE, Cermaq Umitron Corporation şirketlerin sağlığını refahını iyileştirmek çeşitli girişimlerde bulundukları AI'nın su ürünleri yetiştiriciliğine entegrasyonunun, işgücü maliyetlerini çevresel etkileri azaltırken verimliliği artıran odaklı kararlara olanak tanıyarak sürdürülebilir uygulamalarda devrim yaratması beklenmektedir. Çalışmamızın amacı; yapay zeka kullanımı, balıkçılık yetiştiriciliğindeki orkinoslarda ile ilgili yapılmış çalışmaların detaylı şekilde incelenerek sunmak ileride yapılacak uygulamaları alt yapı oluşturmaktır.

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Trade-offs and synergies in the management of environmental pressures: a case study on ship noise mitigation

Marine Pollution Bulletin, Год журнала: 2025, Номер 218, С. 118073 - 118073

Опубликована: Май 16, 2025

Underwater noise from shipping is increasingly recognized as a significant pollutant that can have range of detrimental effects on marine organisms. However, ships impact life in more than one way. From management perspective, holistic approach could provide successful way to minimize the ship traffic sequential, single-pressure mitigation. In this paper, we assess how other pressures are affected by six mitigation measures: speed restriction, rerouting, convoying, frequent hull/propeller cleaning, ship-quieting technologies, and incentivising fewer, larger ships. Here, present apply framework evaluate synergies trade-offs implementation measures better consider cumulative advance effective, management. Using expert judgement peer-reviewed literature, each proposed determine whether they likely synergistic or trade-off impacts pressures, scale effect, strength evidence. Overall, reduction has mostly with only weak pressures. Frequent hull propeller cleaning fewer synergies, but also very few trade-offs, whereas convoying expected be measure most Re-routing incentivization unclear outcomes, because will depend circumstances implementation. We conclude carefully considered thoughtfully implemented lead multiple benefits across

Язык: Английский

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