Fishing

About: Fishing is a research topic. Over the lifetime, 26543 publications have been published within this topic receiving 455552 citations. The topic is also known as: angling.

Projected climate change and the changing biogeography of coastal Mediterranean fishes

Abstract: Aim: To forecast the potential effects of climate change in the Mediterranean Sea on the species richness and mean body size of coastal fish assemblages. Location: The Mediterranean Sea. Methods: Using an ensemble forecasting approach, we used species distribution modelling to project the potential distribution of 288 coastal fish species by the middle and end of the 21st century based on the IPCC A2 scenario implemented with the Mediterranean climatic model NEMOMED8. Results: A mean rise of 1.4 °C was projected for the Mediterranean Sea by the middle of the 21st century and 2.8 °C by the end of the 21st century. Projections for the end of the century suggest that: (1) 54 species are expected to lose their climatically suitable habitat, (2) species richness was predicted to decrease across 70.4% of the continental shelf area, especially in the western Mediterranean Sea and several parts of the Aegean Sea, and (3) mean fish body size would increase over 74.8% of the continental shelf area. Small-bodied species that are not targeted by either commercial or recreational fleets presented, on average, the highest predicted decrease in geographic range size. Main conclusions: Projected climate change in the Mediterranean Sea may have deleterious effects on coastal fish diversity, including a significant loss of climatically suitable habitat for endemic fish species. In addition, climate change may contribute to the loss of small and low trophic-level fishes, which may have ecosystem-wide impacts by reducing food supply to larger and higher trophic-level species. Fishing pressure is already selectively removing large-bodied species from marine ecosystems, and so fishing and climatic change might act in tandem to drive both direct and secondary extinctions.

Avoiding the ecological limits of forage fish for fed aquaculture

Abstract: Aquaculture is supporting demand and surpassing wild-caught seafood. Yet, most fed aquaculture species (finfish and crustacea) rely on wild-captured forage fish for essential fatty acids and micronutrients, an important but limited resource. As the fastest growing food sector in the world, fed aquaculture demand will eventually surpass ecological supply of forage fish, but when and how best to avoid this ecological boundary is unclear. Using global production data, feed use trends, and human consumption patterns, we show how combined actions of fisheries reform, reduced feed use by non-carnivorous aquaculture and agricultural species, and greater consistent inclusion of fish by-products in China-based production can circumvent forage fish limits by mid-century. However, we also demonstrate that the efficacies of such actions are diminished if global diets shift to more seafood-heavy (that is, pescatarian) diets and are further constrained by possible ecosystem-based fisheries regulations in the future. Long-term, nutrient-equivalent alternative feed sources are essential for more rapid and certain aquaculture sustainability. Aquaculture is surpassing wild-caught seafood, but we feed aquaculture with wild forage fish for key nutrients. This study finds removing such forage fish from diets of livestock and non-carnivorous aquaculture species and moderating its use in China will help sustain forage fish populations in the future.

The Future of Fisheries Science in North America

Abstract: On the Future of Fisheries Science.- Biodiversity, Spatial Management, and the Ecosystem Approach.- Biodiversity and the Future of Fisheries Science.- The Implications of a Paradigm Shift in Ocean Resource Management for Fisheries Stock Assessment.- Ecosystem-Based Management of What? An Emerging Approach for Balancing Conflicting Objectives in Marine Resource Management.- The Changing Nature of Fisheries Management and Implications for Science.- Astonishment, Stupefaction, and a Naturalist's Approach to Ecosystem-Based Fisheries Studies.- The High-Dimensional Future of Fishery Science.- Stock Assessment: Operational Models in Support of Fisheries Management.- Fisheries Science in the Future.- Some Observations on the Role of Trophodynamic Models for Ecosystem Approaches to Fisheries.- Why and How Could Indicators Be Used in an Ecosystem Approach to Fisheries Management?.- Fisheries Abundance Cycles in Ecosystem and Economic Management of California Fish and Invertebrate Resources.- Ecosystem Models of Fishing Effects: Present Status and a Suggested Future Paradigm.- The Impacts of Environmental Change and Ecosystem Structure on the Early Life Stages of Fish: A Perspective on Establishing Predictive Capacity.- The Promise of an Ecosystem Approach: Lessons from the Past - Hopes for the Future.- Technology for Evaluating Marine Ecosystems in the Early Twenty-First Century.- Acoustic Methods: Brief Review and Prospects for Advancing Fisheries Research.- Combining Techniques for Remotely Assessing Pelagic Nekton: Getting the Whole Picture.- Using the Seabed AUV to Assess Populations of Groundfish in Untrawlable Areas.- Technology Answers to the Requirements Set by the Ecosystem Approach.- Accounting for Spatial Population Structure in Stock Assessment: Past, Present, and Future.- Genetic and Evolutionary Considerations in Fishery Management: Research Needs for the Future.- Trends in Fishery Genetics.- The Uncertain Future of Assessment Uncertainty.- Model Selection Uncertainty and Bayesian Model Averaging in Fisheries Recruitment Modeling.- Feedback Control in Pacific Salmon Fisheries.- The Future of Fisheries Science: Merging Stock Assessment with Risk Assessment, for Better Fisheries Management.- The Future of Fisheries Science on Canada's West Coast Is Keeping up with the Changes.- Climate and Fisheries: The Past, The Future, and The Need for Coalescence.- Future Research Requirements for Understanding the Effects of Climate Variability on Fisheries for Their Management.- Opportunities in Social Science Research.- Restoring Rivers in the Twenty-First Century: Science Challenges in a Management Context.