Results 11 to 20 of about 10,222 (244)

Gillnet selectivity for the north African catfish, Clarias gariepinus (Actinopterygii: Siluriformes: Clariidae), from the Upper Okavango Delta, Botswana [PDF]

Acta Ichthyologica et Piscatoria, 2015
Background. Successful fisheries management requires estimation of gillnet selectivity for optimum exploitation of the resource. In the Okavango Delta, no study has assessed the selectivity of gillnets for Clarias gariepinus (Burchell, 1822) which is an ...
T. Bokhutlo, K. Mosepele
doaj   +3 more sources

Reducing sea turtle bycatch with net illumination in an Indonesian small-scale coastal gillnet fishery

Frontiers in Marine Science, 2022
Small-scale fisheries are economically and culturally important throughout the world’s coastal waters. These fisheries, however, often have high bycatch rates of protected marine species.
Dwi Ariyoga Gautama, Hendro Susanto, Mochammad Riyanto, Ronny I. Wahju, Michael Osmond, John H. Wang   +5 more
doaj   +1 more source

Disentangling the causes of protected‐species bycatch in gillnet fisheries [PDF]

Conservation Biology, 2017
Abstract Gillnet fisheries are widely thought to pose a conservation threat to many populations of marine mammals, seabirds, and turtles. Gillnet fisheries also support a significant proportion of small‐scale fishing communities worldwide. Despite a large number of studies on protected‐species bycatch in recent decades, relatively few
Northridge, Simon, Coram, Alex, Kingston, Al, Crawford, Rory   +3 more
openaire   +4 more sources

Effects of Gear Restriction on the Abundance of Juvenile Fishes along Sandy Beaches in Hawai'i. [PDF]

PLoS ONE, 2016
In 2007, due to growing concerns of declines in nearshore fisheries in Hawai'i, a ban on gillnets was implemented in designated areas around the island of O'ahu in the main Hawaiian Islands.
Mary K Donovan, Alan M Friedlander, Paolo Usseglio, Whitney Goodell, Ily Iglesias, Eva M Schemmel, Kostantinos A Stamoulis, Alexander Filous, Jonatha Giddens, Keith Kamikawa, Haruko Koike, Kaylyn McCoy, Christopher B Wall   +12 more
doaj   +1 more source

Artisanal fishery with surface gillnets and megafauna strandings

Sociedade & Natureza, 2023
Bycatch is an issue of worldwide relevance involving conflicts between conservation and fishery interests. In Brazil, this conflict has been highlighted in relation to the regulation of small-scale fishery with surface gillnets. To promote management and transformation of this conflict, we analyzed the relationship between catch unloadings from small ...
Jankowsky Mayra, Ivan Machado Martins, Deborah Santos Prado, Jocemar Tomasino Mendonça   +3 more
openaire   +3 more sources

Assessing seabird bycatch in gillnet fisheries using electronic monitoring [PDF]

Biological Conservation, 2020
Abstract The unintentional capture (bycatch) of seabirds in gillnet fisheries kills hundreds of thousands of individuals annually and is thought to threaten the conservation of entire populations. However, data from commercial fisheries is often lacking to confirm these suspicions.
Glemarec, Gildas, Kindt-Larsen, Lotte, Lundgaard, Louise Scherffenberg, Larsen, Finn   +3 more
openaire   +2 more sources

Switching Gillnets to Longlines: An Alternative to Mitigate the Bycatch of Franciscana Dolphins (Pontoporia blainvillei) in Argentina

Frontiers in Marine Science, 2020
The franciscana dolphin (Pontoporia blainvillei) is considered the most threatened cetacean in the South Western Atlantic due to bycatch in gillnet fisheries of Argentina, Uruguay, and Brazil.
Leonardo G. Berninsone, Leonardo G. Berninsone, Leonardo G. Berninsone, Pablo Bordino, Martín Gnecco, Mariana Foutel, Alice I. Mackay, Timothy B. Werner, Timothy B. Werner   +8 more
doaj   +1 more source

Foraging activity of harbour porpoises around a bottom-gillnet in a coastal fishing ground, under the risk of bycatch.

PLoS ONE, 2021
Bycatch of harbour porpoises (Phocoena phocoena) by gillnets is a recognised threat to populations. To develop effective mitigation measures, understanding the mechanics of bycatch is essential.
Saki Maeda, Kenji Sakurai, Tomonari Akamatsu, Ayaka Matsuda, Orio Yamamura, Mari Kobayashi, Takashi Fritz Matsuishi   +6 more
doaj   +1 more source

Selection due to nonretention mortality in gillnet fisheries for salmon [PDF]

Evolutionary Applications, 2010
AbstractFisheries often exert selective pressures through elevated mortality on a nonrandom component of exploited stocks. Selective removal of individuals will alter the composition of a given population, with potential consequences for its size structure, stability and evolution. Gillnets are known to harvest fish according to size.
Baker, Matthew R, Kendall, Neala W, Branch, Trevor A, Schindler, Daniel E, Quinn, Thomas P   +4 more
openaire   +2 more sources

Evaluating elicited judgments of turtle captures for data‐limited fisheries management

Conservation Science and Practice, 2020
We compare judgments of green turtle (Chelonia mydas) captures elicited from local gillnet skippers and not‐for‐profit conservation organization employees operating in a small‐scale fishery in Peru, to capture rates calculated from a voluntary at‐sea ...
William N. S. Arlidge, Joanna Alfaro‐Shigueto, Bruno Ibanez‐Erquiaga, Jeffrey C. Mangel, Dale Squires, Eleanor J. Milner‐Gulland   +5 more
doaj   +1 more source