Articles tagged with Fisheries Management
A new study reveals that warming waters in the Gulf of Maine are a major factor in the collapse of New England cod stocks, hovering at 3-4% of sustainable levels. The research suggests that increased water temperatures reduce the number of new cod produced and lead to fewer young fish surviving to adulthood.
A new report by the National Science Foundation links rapid warming of ocean waters to the collapse of New England's cod fishery. The study found that increasing water temperatures reduced cod production and increased mortality of young fish, leading to a decline in sustainable stock levels.
The study highlights seven potential benefits of pairing territorial use rights in fisheries (TURFs) and marine reserves, including increased fish abundance, reduced IUU fishing, and improved conservation. TURFs grant exclusive access to designated areas, promoting local ownership and conservation measures.
Scientists identify key research needs to ensure healthy populations of these prized game fish, including habitat conservation and genetic analysis. A holistic approach is needed to manage the impact of humans on fish populations.
A new computer model developed by NOAA and research institutions will help inform scallop management decisions. The integrated assessment model evaluates the impacts of ocean acidification on Atlantic sea scallops, predicting potential declines in harvest levels and landings over the next several decades.
A new computer program simulates ocean conditions, sea scallop population dynamics, and economic impacts on the fishery, providing a tool for informed discussion among stakeholders. The model predicts potential declines in sea scallop harvests over several decades if current carbon dioxide emissions continue.
A NOAA study found that natural climate cycles and human activities triggered widespread ecosystem changes in the Gulf of Mexico, impacting fish populations and communities. The Atlantic Multidecadal Oscillation (AMO) played a significant role in these changes.
A team of Brazilian scientists calls for urgent public and private collaboration on fisheries management to protect the nation's aquatic fauna. The scientists emphasize the importance of annual research-based updates to lists of threatened species and a permanent stock evaluation system to reduce extinction risk.
Researchers at the University of Washington argue that environmental conservation requires adapting to an uncertain future. They suggest creating flexible policies with legs, supporting ecosystem diversity, investing in monitoring, expecting unexpected changes, and designing adaptive management strategies.
A recent study by the Wildlife Conservation Society found that spiny lobsters are abundant and support local fisheries. The study recommends increasing the size limit to make the fishery more sustainable.
A new model developed by Penn State researchers can accurately identify stream sections suitable for wild brook trout, helping fisheries managers protect habitat. The model uses characteristics like water temperature and soil type to predict brook trout occurrence in the eastern United States.
A new model developed by economists at Duke University and the University of Connecticut helps fishermen boost profits by identifying the most efficient fishing practices and behaviors. The model found that in some cases, congestion can actually increase potential late-season profits and reduce the risk of fishery depletion.
A pilot program in Kenya gave communities the ability to develop and enforce their own fisheries rules, leading to improved livelihoods for fishermen and a shift towards conservation. Local communities developed mini-marine reserves, reducing ecological losses while increasing community benefits.
A new study suggests that fleet diversity is crucial for successful fishery management, particularly in fisheries targeting multiple species. By promoting balanced catches across species, diverse fishing fleets can increase overall profits while reducing overfishing of slow-growing species.
A new study by WCS found that implementing stricter fisheries management overcame the expected detrimental effects of climate change disturbances in coral reef fisheries. Rapid implementation of fisheries restrictions countered adverse climate effects and increased fisheries catches.
Researchers call for networks of marine protected areas, co-ordinated governance, and local community involvement to tackle overfishing and habitat destruction. Small-scale fisheries, which involve 90% of the world's fishers, are a major threat, with destructive practices like bottom trawling causing widespread damage.
Derelict fishing traps are a significant problem in US waters, catching fish and other species beyond their target. Researchers recommend a collaborative approach to manage and prevent gear loss, involving the fishing industry and examining regional challenges.
A comprehensive look at America's estuaries reveals human activities impact ecosystems and fishing resources, providing a framework for managers to address priorities and allocate funding.
A recent report analyzed Mediterranean fish species from 1990 to 2010, showing a steadily increasing exploitation rate and deteriorating stocks. The researchers recommend advanced management plans, better enforcement, and investments in data collection to improve sustainability.
Leading scientists warn that tropical coastal waters are under pressure due to growing populations and climate change, highlighting the need for holistic management approaches. They advocate for expanded use of Marine Spatial Planning (MSP) to balance competing demands from fisheries, aquaculture, shipping, and other human activities.
A survey of Malagasy fishing villages found that most fishers support gear restrictions but are less supportive of protected areas and species restrictions. The study suggests an implementation approach prioritizing widely accepted restrictions to increase compliance with current and future fisheries regulations.
A new study utilizing archaeological reports of over half a million fish bones from Alaska, British Columbia, and Washington State found that long-ago herring populations were consistently abundant and widespread for thousands of years. This contrasts with today's dwindling and erratic herring numbers.
A new study uses GPS traffic maps to identify high-risk areas for leatherback turtles caught in industrial longlines, guiding fisheries towards more sustainable management practices. The research highlights the need for international cooperation and technology-driven solutions to mitigate bycatch risks.
Researchers have developed a new tool that can predict fish habitat conditions six months in advance. The JISAO Seasonal Coastal Ocean Prediction of the Ecosystem (J-SCOPE) uses global climate models and regional coastal ocean simulations to forecast ocean temperatures, oxygen levels, and phytoplankton blooms.
A new study shows that fisheries-induced evolution can lead to faster growth and earlier maturation in fish, potentially harming or helping fisheries. Optimally harvesting Northeast Arctic cod stocks could increase sustainable yields over 30% greater than today by allowing evolution to aid the economic interests of fishers
Leading researchers at the University of Massachusetts Amherst and Maine disagree with a Pew Charitable Trusts 'factsheet' on Bluefin tuna stocks, stating it lacks scientific credibility. The experts advocate for considering alternative hypotheses and multiple population models in stock assessments.
The U.S. Geological Survey's Biodiversity Information Serving Our Nation (BISON) system has launched, offering a vast repository of nearly 100 million mapped records of living US species. The database provides detailed information on species occurrences, including location, collector data, and environmental context.
Research in Papua New Guinea reveals that local community-led efforts to regulate fish catches benefit both the fishermen and their neighbors. The study found that many larvae produced by managed adults return to the same fish population, highlighting the effectiveness of cooperative management.
Researchers warn of catastrophic loss as nesting sites show 78% decline over 27 years. Conservation efforts face challenges due to feral pig predation and climate change.
A University of Washington-led study found that the potential harvest of most fish stocks is largely unrelated to abundance, with only 18% controlled by abundance. Environmental conditions and regime shifts play a significant role in determining productivity, highlighting the need for improved management methods.
Dr. Ellen K. Pikitch cautions against traditional fisheries management, citing current studies that show fish populations are below recommended levels and most species are declining. A more precautionary approach is needed to protect marine ecosystems.
A new study published in Science magazine provides population assessments for thousands of data-poor fisheries worldwide, revealing that over half are in decline. However, the research highlights hope for recovery: most unassessed fisheries have not yet collapsed and can provide a significant seafood supply boost if managed sustainably.
A new assessment technique allows researchers to determine fish population status using less data than traditional methods. This enables the recovery of thousands of 'data-poor' fisheries, which could boost seafood supply by 8-40% compared to unsustainable fishing practices.
A new study by UCSB researchers refines the tool kit for sustainable fisheries, finding that a mix of spatial management approaches can substantially increase fishery profits. Strategically placed MPAs and nuanced zoning systems can also boost profits, but careful placement is crucial.
A study reconstructing fisheries yields over seven centuries in Hawaii and Florida Keys reveals that Native Hawaiian societies managed fisheries sustainably through local regulations and community involvement. The authors argue that incorporating ancient techniques into modern policy may be key to sustaining coral reef fisheries.
The team will examine harvests of healthy stocks before and after the catch shares program, assessing whether fishermen are closer to harvesting their full strong-stock quotas. They will also study the impact of risk pools and computer models on cooperation and conservation in fisheries management.
A study by the Wildlife Conservation Society finds that co-management is a successful solution to global overfishing, with more than half of surveyed fishermen feeling it improved their livelihoods. The approach has also been shown to protect fish stocks and improve ecosystem health.
A study of 42 co-managed coral reef fisheries found that partnerships between government, conservation groups, and local fishers were successful in meeting the livelihood needs of local communities and protecting fish stocks. The research identified conditions for co-management success, providing vital guidance for conservation groups,...
A new study by the University of California, Berkeley, and Wildlife Conservation Society uses a scientific methodology to establish marine protected areas in Madagascar. The approach identifies conservation priorities across the country's west coast, highlighting areas with high biodiversity value.
The Wildlife Conservation Society won the grand prize with its solution, Bycatch Escape Gaps for Fish Traps in Curaçao and Kenya, receiving a $20,000 prize. The two runners-up received prizes of $5,000 each for their respective solutions. The winners will receive their awards at a ceremony in Washington, D.C., on February 8.
A new model developed by European Commission scientists allows for the first time an overall view of bluefin tuna habitats in the Mediterranean Sea. The model uses satellite remote sensing data to identify preferred habitats and track changes over time, providing valuable insights for sustainable fisheries management.
A three-year study led by FSU biologists is examining the conditions supporting the goliath grouper's population recovery in the Atlantic Ocean and Gulf of Mexico. The research aims to inform policy decisions on sustainable fishing levels, economic uses of marine resources, and conservation efforts.
A new study provides a predictive sequence of events leading to coral reef collapse and identifies key sustainability targets for managing coral reefs. Researchers found that well-protected areas typically have 1000-1500 kilos of reef fish per hectare, and regulations restricting gear or species can help maintain biomass.
The USGS presented several studies on various fish-related topics, including the benefits of habitat restoration for juvenile salmon and the importance of targeting younger silver carp to control their population. Climate change may impact smallmouth bass populations, with warmer temperatures affecting growth in southern climates.
Researchers propose combining modern engineering with traditional social principles to manage rainwater as a common pool resource. Effective monitoring and management can help reduce pressure on ground and surface water supplies, as well as mitigate flash flooding in urban areas.
A global study found that seven out of 61 species are threatened, with the southern bluefin tuna being one of them. The main factors contributing to this are the fish's high dollar value leading to heavy fishing pressure and their slow reproduction rate.
A 10-year study found that restricting fishing gear, including small-mesh seine nets, promotes predatory fish species and increases body length. Even unregulated areas saw improvements to the fish community. Strong management can also benefit adjacent weakly managed areas.
A study finds that community-based co-management is key to sustaining aquatic resources and the livelihoods of communities depending on them. Co-management involves sharing responsibility for resources between governments and users, leading to successful and sustainable fisheries worldwide.
Community-based co-management is a promising solution for sustaining world's fisheries, according to new study. The approach shares responsibility between government and users, fostering social cohesion, clear incentives, and protected areas.
The Florida Keys bonefish census showed a 25% decline in bonefish population, with only about 240,000 fish found compared to an 8-year average of 316,805. The decline may signal broader ecosystem problems and requires careful future monitoring.
Researchers developed the FishSmart program to improve fisheries management, involving stakeholders in the decision-making process. The program resulted in more conservative harvest measures for king mackerel in the Southeast United States, protecting both commercial and recreational interests.
Scientists propose a new approach to selective fishing that prioritizes ecosystem health and biodiversity, challenging traditional methods. The 'balanced exploitation' approach combines reduced fishing effort with better use of non-target species to achieve sustainable yields while maintaining healthy ecosystems.
Research found that forestry access roads can negatively affect walleye populations in remote lakes, with lakes containing the species needing more protection. The presence and location of roads also impact lake fishing quality and accessibility.
A new understanding of marine ecology has emerged, revealing that mussel populations are connected across vast distances through communication. This discovery has significant implications for the design of marine reserves and fisheries management.
Scientists on a research vessel are trawling for prey of sperm whales in the northern Gulf of Mexico to gather data on their feeding ecology. The study will help conserve and protect these endangered large whales by understanding how they utilize their environment.
A joint study by American and Kazakhstani scientists reveals that reducing adult mortality is key to recovering beluga sturgeon populations. The study suggests that limiting the take of adult and subadult sturgeon will contribute more to population growth than hatchery supplementation.
A new study by the Pew Charitable Trusts finds that catch share programs increase predictability in fisheries but do not necessarily lead to better ecological conditions. The research analyzed 15 catch share programs in the US and Canada, concluding they work well to avoid erratic swings, but may not result in larger fish populations.
A new study found that the abundance of roundscale spearfish, a look-alike species of white marlin, clouds the accuracy of past population size assessments. This misidentification might have impacted management efforts and highlights the need for updated biological knowledge on white marlin.
Researchers tracked fish movements through telemetry to better understand their life histories, including habitat preferences and vulnerability to fishing. The study found that certain fish gravitate to specific bottom types, such as limestone ledges, which can help prioritize reef areas for management.
A recent coastal shark survey from Florida to Delaware caught 1,675 sharks from 19 different species, with sandbar sharks being the most common. The survey provides valuable data on shark populations and their role in marine ecosystems.