Search Results (12)

ICAR-CIFRI has been continuously working to develop wetland fisheries in a transdisciplinary knowledge-to-action mode to upscale the livelihood of vulnerable small-scale fishermen communities. The integrated development approach was initiated in different lower Gangetic floodplain wetlands of North 24 Parganas, West Bengal, India, to increase the fish production and socio-economic development of small-scale fishermen communities of the wetlands. Duma is one of the most extensive horseshoe-shaped wetlands in Asia. To augment the fish production from this wetland, the pen culture system was adopted by the fishers under the supervision of ICAR-CIFRI in 2021. Within a year, they received 15 tons of commercial fish, valued at around 30 lakhs apart from the small indigenous fish. It has recently been advised that auto-stocked, high-value minor carp in the wetland be adopted to improve income and conserve small indigenous species. In this article, SDG 14 (Life below water) addresses sustainable ecosystem management and livelihood enhancement for the wellbeing of the local people (SDG 3). Nutritional security of the local people is maintained through the small indigenous fish species which is crucial for addressing ‘No hunger’ as per SDG-2. The research also proves that women can play a crucial role in small-scale fisheries and they can economically stand alone, which is the main aim of SDG-5 (gender equality). However, significant issues such as lack of jurisdictional coordination, ecological changes, inequitable distribution of benefits, and income reduction persist in wetland management. The need for urgent reformation of policy and resource management systems is crucial to boost the economic efficiency of the SSF in the wetland. Training for more knowledge on fishing and fish farming, acquiring alternative livelihood and education on financial management should be brought to the fishermen’s communities. These could develop a resilient community that is more equipped to respond to future crises. Full article

Muskellunge are commonly stocked to maintain populations throughout much of North America. Poststocking survival is variable, and many jurisdictions are experimenting with stocking Muskellunge at advanced life stages (e.g., yearlings) or sizes to promote more consistent recruitment within populations. Yet, little is known about short-term poststocking behavior or survival of Muskellunge in natural lakes or if stocking larger fish results in improved poststocking survival. Radiotelemetry was used to evaluate the behavior and survival of large (mean of 418 mm; standard error of 3.4) spring-stocked yearling Muskellunge in two northern Iowa natural lakes of varying biotic and abiotic complexity. Hatchery-reared Muskellunge were fitted with radio transmitters (n = 10–15 fish/lake), stocked in each lake with conspecifics, and tracked either daily or weekly up to 112 days poststocking. Telemetry data were used to evaluate dispersal and movement, depth and vegetation use, proximity to shore, and survival. In both lakes, fish dispersed rapidly from each stocking site. Movement among lakes was similar and peaked during the first week poststocking and declined thereafter. Muskellunge were frequently located in offshore habitats in both lakes, but both depth and vegetation use varied among lakes and weeks poststocking, with Muskellunge found in deeper, more vegetated habitats in the larger, more complex natural lake. Muskellunge in both systems had high poststocking survival (86.7–90.0%). The results of this study provide managers with more information regarding yearling Muskellunge poststocking behavior and survival and indicate that larger fish may be a suitable alternative for fisheries where high poststocking mortality may be acting as a bottleneck for maintaining quality Muskellunge fisheries. Full article

Fisheries-independent data on the diversity, relative abundance, and demographic structure of poorly studied, threatened oceanic sharks are absent from much of the western North Atlantic Ocean, where multiple oceanic shark species have experienced significant population declines. Resource-limited management approaches require the identification of critical habitats or aggregation sites worthy of protection and enforcement. Data were collected on oceanic sharks using pelagic longline surveys, targeted baiting, and opportunistic encounters in oligotrophic open-ocean habitats of north-eastern Exuma Sound (NES), The Bahamas. The oceanic epipelagic shark community was also characterized using targeted baiting off Columbus Point, Cat Island (CI), a seamount north of San Salvador (SSSM), and the northwestern tip of Mayaguana. Pelagic longline surveys suggested that the relative abundance of sharks at NES was low (shark catch-per-unit-effort: 0.0007 sharks hook⁻¹ h⁻¹; 2.3 sharks per 1000 hooks). Silky sharks Carcharhinus falciformis, particularly juveniles (134 ± 39 cm stretched total length; mean ± SD STL), were the most common. Targeted baiting suggested oceanic whitetip sharks C. longimanus were abundant at CI, where large adults (245 ± 23 cm STL), most of which were females (83.8%, n = 98 of 117) that were gravid (65.7%; n = 46 of 70 assessed for pregnancy), dominated the aggregation. Many (20.5–26.5%, n = 24–31 of 117 depending on assumptions regarding tag loss) were recaptured or resighted at CI for up to five years. Silky sharks dominated catches at SSSM. Oceanic sharks, particularly adults, were sometimes caught or observed alongside short-finned pilot whales Globicephala macrorhynchus or tunas. Although The Bahamas offers threatened oceanic sharks refuge from fishing across its entire jurisdiction, these data suggest that some fixed features, including sites such as CI and potentially SSSM, are important aggregation sites with high regional conservation value and should be prioritized by fisheries managers and enforcement officials. Full article

The issue of high-seas fisheries is the main threat to biodiversity in areas beyond national jurisdiction. The BBNJ Agreement, which focuses on biodiversity in areas beyond national jurisdiction, is under vigorous discussion. Subject to the “not undermine” requirement and considerations of practical interests, it is highly possible that the BBNJ Agreement may not address the issue of fisheries on the high seas. The objective of this paper is to analyze the relationship between the high-seas fisheries issue and the BBNJ Agreement for the purposes of the conservation of marine biodiversity, the unity of the marine ecosystem, and the consistency of regulations. It maintains that from the perspective of protecting the oceans, enacting legislation in areas beyond national jurisdiction, and transforming marine management mode, the issue of high-seas fisheries should be included in the BBNJ Agreement. In the future, the BBNJ agreement needs to clarify its scope of application, resolve overlapping issues through general regulations and conflict rules, clarify the methods and contents of international cooperation, and establish international law obligations for integrated ocean management. Full article

The North Sea fishery has maintained sound and stable cooperative management over the past four decades. European Union (EU) countries exchange quotas with Norway for fish stocks in their respective fisheries jurisdictions within the framework of the EU Common Fisheries Policy (EU CFP) and the Agreement on Fisheries between the European Economic Community and the Kingdom of Norway. After beginning the Brexit process with a concomitant transitional arrangement, the United Kingdom remained in the EU CFP until the end of 2020. From 2021 onward, the United Kingdom became a completely independent coastal state outside the EU CFP framework. In this context, the long-standing and stable fisheries access and quota exchange system between Norway and the EU will face tensions. The differences among the United Kingdom, the EU and Norway in fisheries also involve quotas and access to the Svalbard Protection Zone. Norway even intends to expand the fisheries conflict to the Arctic Council. To prevent the adverse consequences of conflict spillover and to achieve sustainable development of fisheries and win–win cooperation in fisheries management, the United Kingdom, the EU and Norway launched a series of actions on fisheries issues. In tripartite negotiations, each party has its advantages. Ultimately, win–win cooperation in the fisheries game is the three parties’ expected outcome. Full article

Offshore wind power (OWP) has become a new emerging favorable renewable energy in Taiwan. Despite the fact that its development in Taiwan seems promising in the near future, it is facing some unwanted challenges recently, particularly the protests from fishers. The purpose of this paper is to understand jurisdiction over offshore areas in Taiwan via analyzing conflicts between OWP developers and fishers in Taiwan and finds that existing jurisdiction over the offshore areas in Taiwan seems to be not supportive to the development OWP. Jurisdiction among different acts is not consistent, and it is not administered by a specific agency. Most importantly, the Fisheries Act allows some specific people or groups to enjoy fishing rights as their property in rem in Taiwan’s offshore areas. To this end, the revision of the current Fisheries Act to set such rights as a privilege should be a must, but the government will need to pay a vast amount of money for doing so. Further, if a “one-shop” mechanism such as the Ocean Affairs Council would be adopted, the development of OWP and the addressing of disputes among different users, particularly with fishers, fishers’ associations, and cooperatives, would be more effective and promising. Full article

Fisheries subsidies regulation lies at the intersection of international fisheries and international trade governance regimes. Although eradicating harmful fisheries subsidies cannot be a panacea for illegal, unreported and unregulated (IUU) fishing, it is an essential first step to confront the problem head-on. The multilateral Agreement on Fisheries Subsidies, adopted by the World Trade Organization (WTO) in June 2022, provides an impetus for sovereign states to steer fisheries subsidies reform towards commonly agreed legality, sustainability and transparency benchmarks. This legal and policy investigation aims to give increased attention to the ultimate responsibility of national governments to exercise active fisheries jurisdiction over the identification and sanction of IUU fishing activities. With or without WTO prior judgements, a level of jurisdictional coherence is warranted to trigger a comprehensive and effective ban on IUU fisheries subsidies in as timely a manner as possible. Full article

The present article discusses and analyses the role and contribution of International Maritime Dispute Settlement Bodies in sustainable fishery governance. From a maritime dispute settlement perspective, the discussion on preserving marine biodiversity, including fisheries and ecosystems, is unprecedented. However, dispute settlement impacts on marine biodiversity require serious attention from the viewpoint of effective implementation of the United Nations Fish Stocks Agreement, International Environmental Law, and United Nations Convention on Law of the Sea. ‘Applicable law’ as primary contention, which could be utilised to preserve marine biodiversity, is preferably employed for ‘ship release’ and ‘delimitation’ issues under dispute settlement mechanisms. Perhaps, the political and legal obstacles in interpreting the ‘law of the sea’ are one area of critique, and the optional dispute settlement mechanism is another. All these significant issues are discussed to develop a rational approach utilising ‘applicable law’ to preserve marine biodiversity and develop sustainable fishery governance. The result will certainly help build a better understanding of the ‘applicable law’ jurisdiction that may be utilised to ensure the sustainability of marine biodiversity. Full article

As mercury emissions continue and climate-mediated permafrost thaw increases the burden of this contaminant in northern waters, Inuit from a Northwest passage community in the Canadian Arctic Archipelago pressed for an assessment of their subsistence catches. Sea-run salmonids (n = 537) comprising Arctic char (Salvelinus alpinus), lake trout (S. namaycush), lake whitefish (Coregonus clupeaformis), and cisco (C. autumnalis, C. sardinella) were analyzed for muscle mercury. Methylmercury is a neurotoxin and bioaccumulated with fish age, but other factors including selenium and other elements, diet and trophic level as assessed by stable isotopes of nitrogen (δ¹⁵N) and carbon (δ¹³C), as well as growth rate, condition, and geographic origin, also contributed depending on the species, even though all the fish shared a similar anadromous or sea-run life history. Although mean mercury concentrations for most of the species were ~0.09 µg·g⁻¹ wet weight (ww), below the levels described in several jurisdictions for subsistence fisheries (0.2 µg·g⁻¹ ww), 70% of lake trout were above this guideline (0.35 µg·g⁻¹ ww), and 19% exceeded the 2.5-fold higher levels for commercial sale. We thus urge the development of consumption advisories for lake trout for the protection of pregnant women and young children and that additionally, periodic community-based monitoring be initiated. Full article

In the last decade, the United Nations took important steps for the creation of a new instrument for biodiversity protection in areas beyond national jurisdiction. This put under discussion the central issues of international commons management and of the governance model for the High Seas. The aim of this paper is to discuss and evaluate critically the political negotiations already made and yet to come, as well as their rationale. For this purpose, the paper applies game theory to fisheries management to get insights. This research aims to contribute toward more qualified and grounded decisions. The key role of cooperation in the sustainable use of common resources is stressed. Full article

Hundreds of fish species are harvested in coral-reef fisheries in the Indo-Pacific region using a variety of fishing gears. This diversity makes the economics, ecology, and management of reef-associated fisheries inherently complex. However, across insular fisheries spanning the tropical Pacific, one species consistently dominates contemporary fisheries catch: the bluespine unicornfish (Naso unicornis, Acanthuridae). I evaluated the relative contribution of N. unicornis to commercial fisheries in the insular Pacific region from long-term (>1 year) fishery surveys across various jurisdictions and provide evidence of the contemporary cultural value of this species. Overall, evidence suggests that N. unicornis is the most commercially-valuable reef-associated fish species across the insular Pacific. This notion, coupled with a diverse representation of N. unicornis across Pacific cultures, suggests that the species is presently underappreciated in its role in coastal fisheries across Pacific Island nations. Full article

By the terms set by international agreements for the conservation of Yukon River salmon, 2009 was a management success. It was a devastating year for many of the Alaska Native communities along the Yukon River, however, especially in up-river communities, where subsistence fishing was closed in order to meet international conservation goals for Chinook salmon. By the end of summer, the smokehouses and freezers of many Alaska Native families remained empty, and Alaska’s Governor Sean Parnell petitioned the US Federal Government to declare a fisheries disaster. This paper reviews the social and ecological dimensions of salmon management in 2009 in an effort to reconcile these differing views regarding success, and the apparently-competing goals of salmon conservation and food security. We report local observations of changes in the Chinook salmon fishery, as well as local descriptions of the impacts of fishing closures on the food system. Three categories of concern emerge from our interviews with rural Alaskan participants in the fishery and with federal and state agency managers: social and ecological impacts of closures; concerns regarding changes to spawning grounds; and a lack of confidence in current management methods and technologies. We show how a breakdown in observation of the Yukon River system undermines effective adaptive management and discuss how sector-based, species-by-species management undermines a goal of food security and contributes to the differential distribution of impacts for communities down and up river. We conclude with a discussion of the merits of a food system and ecosystem-based approach to management, and note existing jurisdictional and paradigmatic challenges to the implementation of such an approach in Alaska. Full article