scholarly journals Seasonal Abundance and Size Structure of Sharks Taken in the Pelagic Longline Fishery off Northwestern Cuba

2021 ◽  
Vol 13 (3) ◽  
pp. 289-305
Author(s):  
Alexei Ruiz‐Abierno ◽  
J. Fernando Márquez‐Farías ◽  
Ariadna Rojas‐Corzo ◽  
Valerie Miller ◽  
Jorge A. Angulo‐Valdés ◽  
...  
Keyword(s):  
Size Structure ◽  
Seasonal Abundance ◽  
Longline Fishery ◽  
Pelagic Longline Fishery ◽  
Pelagic Longline

Are circle hooks effective management measures in the pelagic longline fishery for sharks in the Gulf of Gabès?

2020 ◽  
Vol 30 (6) ◽  
pp. 1172-1181
Author(s):  
Bechir Saidi ◽  
Khaled Echwikhi ◽  
Samira Enajjar ◽  
Sami Karaa ◽  
Imed Jribi ◽  
...  
Keyword(s):  
Longline Fishery ◽  
Effective Management ◽  
Gulf Of Gabes ◽  
Gulf Of Gabès ◽  
Management Measures ◽  
Pelagic Longline Fishery ◽  
Pelagic Longline

scholarly journals Tori lines mitigate seabird bycatch in a pelagic longline fishery

2021 ◽  
Author(s):  
Eric Gilman ◽  
Milani Chaloupka ◽  
Asuka Ishizaki ◽  
Mathew Carnes ◽  
Hollyann Naholowaa ◽  
...  
Keyword(s):  
Longline Fishery ◽  
Pelagic Longline Fishery ◽  
Pelagic Longline

Shark bycatch and depredation in the U.S. Atlantic pelagic longline fishery

2008 ◽  
Vol 18 (4) ◽  
pp. 427-442 ◽  
Author(s):  
John W. Mandelman ◽  
Peter W. Cooper ◽  
Timothy B. Werner ◽  
Kerry M. Lagueux
Keyword(s):  
Longline Fishery ◽  
Pelagic Longline Fishery ◽  
The U.S ◽  
Pelagic Longline

scholarly journals Analysis of marine mammal bycatch in the Uruguayan pelagic longline fishery operating in the Southwestern Atlantic Ocean

2015 ◽  
Vol 72 (5) ◽  
pp. 1637-1652 ◽  
Author(s):  
Cecilia Passadore ◽  
Andrés Domingo ◽  
Eduardo R. Secchi
Keyword(s):  
Atlantic Ocean ◽  
Marine Mammals ◽  
Population Decline ◽  
Additive Models ◽  
Longline Fishery ◽  
Southwestern Atlantic ◽  
Southwestern Atlantic Ocean ◽  
Pelagic Longline Fishery ◽  
The Impact ◽  
Pelagic Longline

Abstract Bycatch is one of the main causes of human-caused mortality and population decline of many marine mammals. Monitoring bycatch is the first step to understand the impact of the fisheries on the species affected. Understanding how the interaction between marine mammals and fishing operations varies in space and time, and how it is influenced by environmental variables, is essential for designing mitigation strategies to reduce bycatch mortality. In this paper, we use data gathered by scientific observers and a fishing skipper to analyse marine mammals bycatch by the Uruguayan pelagic longline fishery operating in the Southwestern Atlantic Ocean from 1996 to 2007. The total bycatch per unit effort (Bcpue) was 0.0150 marine mammals/1000 hooks and the highest values (∼0.2) were recorded between 37°–38°S and 49°–51°W. Total cetacean Bcpue during the study period was low (0.0051 cetacean/1000 hooks) and occurred between 32°–37°S and 46°–54°W. Generalized additive models showed that cetaceans' bycatch was mainly affected by the depth, sea surface temperature, and season. Although cetaceans were captured year-round, the highest values were registered in spring months, most bycatch events occurred over the continental slope (median = 619 m) and in waters with a median temperature of 19.7°C. The bycatch of pinnipeds was influenced by depth, location, and season. Pinniped bycatch occurred mainly in winter, in waters ranging from 80 to 5000 m of depth (median = 2366 m) between 34°–37°S (median = 35.9°S) and 54°–49°W (median = 51.8°W). The spatial analysis showed that most bycatch events occurred within the Brazil–Malvinas Confluence zone, an area of high productivity where the pelagic longline fleet concentrates its fishing effort and where marine mammals probably concentrate to feed.

Circle Hook Performance in the Uruguayan Pelagic Longline Fishery

2012 ◽  
Vol 88 (3) ◽  
pp. 499-511 ◽  
Author(s):  
Andrés Domingo ◽  
Maite Pons ◽  
Sebastián Jiménez ◽  
Philip Miller ◽  
Caren Barceló ◽  
...  
Keyword(s):  
Longline Fishery ◽  
Pelagic Longline Fishery ◽  
Pelagic Longline
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