نتایج جستجو برای: fisheries

تعداد نتایج: 15801  

2018
John T Trochta Maite Pons Merrill B Rudd Melissa Krigbaum Alexander Tanz Ray Hilborn

Ecosystem-based fisheries management (EBFM) was developed to move beyond single species management by incorporating ecosystem considerations for the sustainable utilization of marine resources. Due to the wide range of fishery characteristics, including different goals of fisheries management across regions and species, theoretical best practices for EBFM vary greatly. Here we highlight the lac...

2012
Nicolás L. Gutiérrez Sarah R. Valencia Trevor A. Branch David J. Agnew Julia K. Baum Patricia L. Bianchi Jorge Cornejo-Donoso Christopher Costello Omar Defeo Timothy E. Essington Ray Hilborn Daniel D. Hoggarth Ashley E. Larsen Chris Ninnes Keith Sainsbury Rebecca L. Selden Seeta Sistla Anthony D. M. Smith Amanda Stern-Pirlot Sarah J. Teck James T. Thorson Nicholas E. Williams

Concerns over fishing impacts on marine populations and ecosystems have intensified the need to improve ocean management. One increasingly popular market-based instrument for ecological stewardship is the use of certification and eco-labeling programs to highlight sustainable fisheries with low environmental impacts. The Marine Stewardship Council (MSC) is the most prominent of these programs. ...

2010
Robert Arlinghaus Shuichi Matsumura Robert ARLINGHAUS Shuichi MATSUMURA Ulf DIECKMANN

Traditional fisheries management theory supports aggressive exploitation of old and large fish to maximize a stock’s biomass production and yield. Here we present an age-structured fish population model with multidimensional density-dependence to test the hypotheses that protection of large, fecund individuals is beneficial for the population and selected fisheries variables and that effects of...

2017
Elena Ojea Isaac Pearlman Steven D. Gaines Sarah E. Lester

Climate change is already producing ecological, social, and economic impacts on fisheries, and these effects are expected to increase in frequency and magnitude in the future. Fisheries governance and regulations can alter socio-ecological resilience to climate change impacts via harvest control rules and incentives driving fisher behavior, yet there are no syntheses or conceptual frameworks fo...

2012
K Kleisner D Zeller R Froese D Pauly

Introduction 2 History of the stock status plots 2 Challenges, improvements and using SSPs 6 Simulations that appear to invalidate SSPs 6 Two real issues: developing and rebuilding stocks 7 Using SSPs: Acceleration of shifts in global stock status 8 Expected SSP performance under various scenarios 10 Open access and regulated fisheries 11 Marine protected areas 13 Increased cost of fishing 13 F...

Journal: :CoRR 2016
Bjørn Magnus Mathisen Peter Haro Bård Hanssen Sara Björk Ståle Walderhaug

Decision support systems help decision makers make better decisions in the face of complex decision problems (e.g. investment or policy decisions). Fisheries and Aquaculture is a domain where decision makers face such decisions since they involve factors from many different scientific fields. No systematic overview of literature describing decision support systems and their application in fishe...

2013
Aaron J Adams Andrij Z Horodysky Richard S McBride Kathryn Guindon Jonathan Shenker Timothy C MacDonald Heather D Harwell Rocky Ward Kent Carpenter

We assessed the taxonomic diversity, geographic distributions, life history, ecology and fisheries of tarpons, ladyfishes and bonefishes (members of the subdivision Elopomorpha), which share many life history and habitat use characteristics that make them vulnerable to environmental and anthropogenic stresses in coastal environments. This assessment of Red List status for the International Unio...

2011
José P. Granadeiro Richard A. Phillips Paul Brickle Paulo Catry

Fisheries have major impacts on seabirds, both by changing food availability and by causing direct mortality of birds during trawling and longline setting. However, little is known about the nature and the spatial-temporal extent of the interactions between individual birds and vessels. By studying a system in which we had fine-scale data on bird movements and activity, and near real-time infor...

2010
Lyne Morissette Kristin Kaschner Leah R. Gerber

There is global concern about the interaction between whales and fisheries, and in some countries, great whales are viewed as a threat to fisheries by potentially eating fish species that could be exploited for human consumption. We developed an ecosystem model to explore the trophic interactions between cetaceans and fisheries off Northwest Africa and to examine the potential impact of a reduc...

2015
James HutcHison DaviD P. PHiliPP PeDram D. DanesHGar Hans J. Hartmann Francis Juanes linDy Knowles Karen J. murcHie JoHn tieDemann marK sPalDinG

—Mangroves are critically important habitats for fisheries, both for their resident fish, crustacean, and mollusk populations and as nursery grounds for the target species of offshore fisheries. However, the spatial variation in the benefits provided by mangroves to fisheries is poorly understood. Based on expert knowledge of mangrove ecology and fisheries biology, we developed a preliminary mo...

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