Journal ArticleDOI
Global marine yield halved as fishing intensity redoubles
Reg Watson,William W. L. Cheung,William W. L. Cheung,Jonathan A. Anticamara,Rashid Sumaila,Dirk Zeller,Daniel Pauly +6 more
TLDR
In this article, the authors analyse spatial and temporal patterns of global fishing effort and its relationship with catch to assess the status of the world's fisheries, revealing that fleets now fish all of the oceans and have increased in power by an average of 10-fold (25-fold for Asia) since the 1950s.Abstract:
There is widespread concern and debate about the state of global marine resources and the ecosystems supporting them, notably global fisheries, as catches now generally stagnate or decline. Many fisheries are not assessed by standard stock assessment methods including many in the world's most biodiverse areas. Though simpler methods using widely available catch data are available, these are often discounted largely because data on fishing effort that contributed to the changes in catches are mostly not considered. We analyse spatial and temporal patterns of global fishing effort and its relationship with catch to assess the status of the world's fisheries. The study reveals that fleets now fish all of the world's oceans and have increased in power by an average of 10-fold (25-fold for Asia) since the 1950s. Significantly, for the equivalent fishing power expended, landings from global fisheries are now half what they were a half-century ago, indicating profound changes to supporting marine environments. This study provides another dimension to understand the global status of fisheries.read more
Citations
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Evidence that the Great Pacific Garbage Patch is rapidly accumulating plastic
Laurent Lebreton,Boyan Slat,Francesco F. Ferrari,Bruno Sainte-Rose,Jen Aitken,Robert Marthouse,Sara Hajbane,Serena Cunsolo,Anna Schwarz,Aurore Levivier,K. Noble,Pavla Debeljak,H. Maral,R. Schoeneich-Argent,Roberto Brambini,Julia Reisser +15 more
TL;DR: A major ocean plastic accumulation zone formed in subtropical waters between California and Hawaii: The Great Pacific Garbage Patch is characterised and quantified, suggesting that ocean plastic pollution within the GPGP is increasing exponentially and at a faster rate than in surrounding waters.
Journal ArticleDOI
Signature of ocean warming in global fisheries catch
TL;DR: This study shows that ocean warming has already affected global fisheries in the past four decades, highlighting the immediate need to develop adaptation plans to minimize the effect of such warming on the economy and food security of coastal communities, particularly in tropical regions.
Journal ArticleDOI
Tracking the global footprint of fisheries
David Kroodsma,Juan Mayorga,Timothy Hochberg,Nathan A. Miller,Kristina Boerder,Francesco Ferretti,Alex Wilson,Bjorn Bergman,Timothy D. White,Barbara A. Block,Paul Woods,Brian Sullivan,Christopher Costello,Boris Worm +13 more
TL;DR: It is found that global patterns of fishing have surprisingly low sensitivity to short-term economic and environmental variation and a strong response to cultural and political events such as holidays and closures.
Journal ArticleDOI
Environmental occurrences, fate, and impacts of microplastics
Panfeng Wu,Jinsheng Huang,Yuling Zheng,Yicheng Yang,Yue Zhang,Feng He,Hao Chen,Guixiang Quan,Jinlong Yan,Tiantian Li,Bin Gao +10 more
TL;DR: This work is designed to provide a comprehensive overview that summarizes current knowledge and research findings on environmental occurrences, fate and transport, and impacts of MPs and also summarizes both the experimental and modeling data of the environmental fate and Transport of MPs.
Journal ArticleDOI
The future of fish
Boris Worm,Trevor A. Branch +1 more
TL;DR: The future of fish depends, at least in part, on redoubling science, co-management and conservation efforts in 'fisheries-conservation hotspots' of increasing exploitation rates, high biodiversity, and poor management capacity.
References
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Journal ArticleDOI
Historical overfishing and the recent collapse of coastal ecosystems.
Jeremy B. C. Jackson,Jeremy B. C. Jackson,Michael Xavier Kirby,Wolfgang H Berger,Karen A. Bjorndal,Louis W. Botsford,Bruce J. Bourque,Roger Bradbury,Richard G. Cooke,Jon M. Erlandson,James A. Estes,Terry P. Hughes,Susan M. Kidwell,Carina B. Lange,Hunter S. Lenihan,John M. Pandolfi,Charles H. Peterson,Robert S. Steneck,Mia J. Tegner,Robert R. Warner +19 more
TL;DR: Paleoecological, archaeological, and historical data show that time lags of decades to centuries occurred between the onset of overfishing and consequent changes in ecological communities, because unfished species of similar trophic level assumed the ecological roles of over-fished species until they too were overfished or died of epidemic diseases related to overcrowding as mentioned in this paper.
Journal ArticleDOI
A Global Map of Human Impact on Marine Ecosystems
Benjamin S. Halpern,Shaun Walbridge,Kimberly A. Selkoe,Kimberly A. Selkoe,Carrie V. Kappel,Fiorenza Micheli,Caterina D'Agrosa,Caterina D'Agrosa,John F. Bruno,Kenneth S. Casey,Colin M. Ebert,Helen E. Fox,Rod Fujita,Dennis Heinemann,Hunter S. Lenihan,Elizabeth M. P. Madin,Matthew T. Perry,Elizabeth R. Selig,Elizabeth R. Selig,Mark Spalding,Robert S. Steneck,Reg Watson +21 more
TL;DR: This article developed an ecosystem-specific, multiscale spatial model to synthesize 17 global data sets of anthropogenic drivers of ecological change for 20 marine ecosystems and found that no area is unaffected by human influence and that a large fraction (41%) is strongly affected by multiple drivers.
Journal ArticleDOI
Generalized Additive Models: An Introduction With R
TL;DR: Robinson, R. (2007). Generalized Additive Models: An Introduction With R.(2007).
Journal ArticleDOI
Impacts of biodiversity loss on ocean ecosystem services.
Boris Worm,Edward B. Barbier,Nicola Beaumont,J. Emmett Duffy,Carl Folke,Carl Folke,Benjamin S. Halpern,Jeremy B. C. Jackson,Jeremy B. C. Jackson,Heike K. Lotze,Fiorenza Micheli,Stephen R. Palumbi,Enric Sala,Kimberley A. Selkoe,John J. Stachowicz,Reg Watson +15 more
TL;DR: The authors analyzed local experiments, long-term regional time series, and global fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial scales, concluding that marine biodiversity loss is increasingly impairing the ocean's capacity to provide food, maintain water quality, and recover from perturbations.
Journal ArticleDOI
Rebuilding Global Fisheries
Boris Worm,Ray Hilborn,Julia K. Baum,Trevor A. Branch,Jeremy S. Collie,Christopher Costello,Michael J. Fogarty,Elizabeth A. Fulton,Jeffrey A. Hutchings,Simon Jennings,Simon Jennings,Olaf P. Jensen,Heike K. Lotze,Pamela M. Mace,Tim R. McClanahan,Cóilín Minto,Stephen R. Palumbi,Ana M. Parma,Daniel Ricard,Andrew Rosenberg,Reg Watson,Dirk Zeller +21 more
TL;DR: Current trends in world fisheries are analyzed from a fisheries and conservation perspective, finding that 63% of assessed fish stocks worldwide still require rebuilding, and even lower exploitation rates are needed to reverse the collapse of vulnerable species.
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