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Apr 15, 2005 · Traditionally the word "fish" used in fisheries management includes not solely finfish, but a wide range of aquatic organisms that are captured for income or subsistence (e.g., mackerel, tuna ...
Though reported capture fisheries are dominated by marine production, inland fish and fisheries make substantial contributions to meeting the challenges faced by individuals, society, and the environment in a changing global landscape. Inland capture fisheries and aquaculture contribute over 40% to the world’s reported finfish production from less than 0.01% of the total volume of water on ...
- Abigail J. Lynch, Steven J. Cooke, Andrew M. Deines, Shannon D. Bower, David B. Bunnell, Ian G. Cowx...
- 2016
Fisheries | www.fisheries.org 453 important fish stocks that can be sustainably harvested. A meta-analysis of marine stock assessment models aggregated for multiple stocks and species worldwide reveals climate change “winners” and “losers” and a net overall loss of sus-tainable yield of 4.1% from 1930 to 2010 (Free et al. 2019).
our lives easier, healthier, and more produc-tive. Every living organism has an. mportant role to play, and many are indispensable.Our aquatic wildlife are important sources of food, energy, jobs, atmospheric oxygen, buffers against new diseases, pests, and predators, and protectio. rich diversity of plantsThe Value of BiodiversityEach aquatic ...
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- Land Use
- Hydromorphological Modification
- Substrate and Riparian Modification
- Chemical Contaminants
- Eutrophication and Hypoxia
- Overfishing
- Non-Native Fish
Land use, particularly intensive silviculture and agriculture, urbanization, and mining fundamentally alter the condition of surface waters, whether they occur in the USA or elsewhere. Mebane et al. found that fish assemblage condition in large Oregon rivers declined with increased catchment agriculture and decreased catchment forest. Snyder et al...
Physical and hydrological modification of fish habitat varies from major dams that fundamentally alter flows and convert rivers to lakes, to local changes in substrate and riparian vegetation. Stanford et al. considered flow regulation the most pervasive change in large rivers, and Poff et al. argued that flow regimes and flood pulses were master...
Lower fish assemblage condition was associated with excess fine sediments and reduced channel complexity at stream sites in the Oregon and Washington Coast Range . Bryce et al. concluded that surficial fine sediments <5 % were needed to maintain the habitat potential for trout and other sediment sensitive aquatic vertebrates in western USA mountai...
Chemical contamination of USA waters has been reduced significantly since implementation of the Clean Water Act of 1972. Nonetheless, mercury concentrations exceeded the USEPA 300 ppb fish tissue consumption criterion at nearly half of USA lakes . In a survey of 600 western USA streams and rivers, Peterson et al. found that large piscivorous game ...
Despite effective nutrient removal from urban sewage, eutrophication remains a pervasive problem in USA waters, largely as a result of agricultural runoff. USEPA reported that excess phosphorus was associated with poor fish assemblage condition in over 20 % of the USA stream and river length. USEPA found that 50 % of USA lakes and reservoirs were...
Recreational overfishing has been a historical issue for many highly valued species (e.g., GMFMC Web: http://www.gulfcouncil.org, accessed June 2014) but its impacts have been reduced by fishery management agencies, and recreational fishing typically has markedly less impact than commercial fishing. Nonetheless, as any angler can attest, additional...
By sampling 1,000 western USA stream and river sites (representing 90,000 stream kilometers), Lomnicky et al. estimated that 52 % of the stream length contained non-native aquatic vertebrates (83 % of large river length). Three different trout were the most commonly occurring non-native species. Sanderson et al. estimated that the effects of non-...
- Robert M. Hughes
- hughes.bob@amnisopes.com
- 2015
Abstract This essay explores shifting scientific understandings of fish and the evolution of fisheries science, and it grapples with colonialism as a system of power. We trace the rise of fisheries science to a time when Western nation-states were industrializing fishing fleets and competing for access to distant fishing grounds. A theory of fishing called “maximum sustainable yield” (MSY ...
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Feb 23, 2021 · The continuous fish stock decline indicates that the world is still far from achieving SDG 14 (Life Below Water), FAO’s Blue Growth Initiative goal and SDG 15 (Life on Land, including freshwater ...
