Trace elements in the liver and kidney of South American sea lion ( Otaria byronia ) pups from northern Chile

2020 ◽  
Vol 36 (3) ◽  
pp. 992-1000
Author(s):  
Danai Olea ◽  
Macarena Santos‐Carvallo ◽  
Hernán Gaete ◽  
María‐Gabriela Lobos ◽  
Maritza Sepúlveda

2008 ◽  
Vol 65 (9) ◽  
pp. 1739-1746 ◽  
Author(s):  
Sabine Goetz ◽  
Matthias Wolff ◽  
Wolfgang Stotz ◽  
Mario J. Villegas

Abstract Goetz, S., Wolff, M., Stotz, W., and Villegas, M. J. 2008. Interactions between the South American sea lion (Otaria flavescens) and the artisanal fishery off Coquimbo, northern Chile. – ICES Journal of Marine Science, 65: 1739–1746. The South American sea lion (Otaria flavescens) forages in coastal waters, where it interacts with fisheries and causes considerable economic loss by removing some catch and damaging gear. This study describes for the fishery region of Coquimbo (Chile) where, when, and with what type of gear interactions occur, characterizes the animals involved (group size, sex, and age), and derives some management recommendations. The study was based on 55 interviews with fishers and observations aboard fishing vessels in the main fishing sectors between October 2003 and March 2004. Interactions were primarily at night (88% of interviewees fished at night), in the bay (“Bahía”) of Coquimbo (81% of interviewees fished in this sector), where shoaling fish were abundant, and with purse-seines (100% of interviewees used this gear). Although some large groups of sea lions were seen, most comprised 1–10 animals. Most animals that interacted with the fishing gear were males (67%), probably because of the different feeding strategies of the two sexes. Management options discussed include the adjustment of fisheries to foraging behaviour of sea lions, and the controlled elimination of conflicting animals.



2015 ◽  
Vol 50 (2) ◽  
pp. 205-220
Author(s):  
Maritza Sepúlveda ◽  
Macarena Santos ◽  
Rodrigo Veas ◽  
Lily Muñoz ◽  
Danai Olea ◽  
...  


2004 ◽  
Vol 69 (2) ◽  
pp. 108-118 ◽  
Author(s):  
A.C.M. Schiavini ◽  
E.A. Crespo ◽  
V. Szapkievich


Author(s):  
Pablo Reyes ◽  
Rodrigo Hucke-Gaete ◽  
Juan Pablo Torres-Florez

This paper presents results of a study conducted on the trawling industrial fishery fleet of Merluccius gayi in south-central Chile, and the resulting interactions with the South American sea lion (Otaria flavescens). This study is based on observations made during September 2004, when incidental sea lion catch in the trawls was 6.3 sea lions/working day (1.2 sea lions/trawl−1). A total of 82 animals were incidentally caught, of which 12 were found dead, and the 70 remaining suffered from internal bleeding and/or fractures as a result of their capture. 83.3% of the fatalities occurred during nocturnal trawls, which comprise 30% of all observed trawls. Possible mechanisms of sea lion take are discussed. This note presents the first records of sea lions incidental by-catch by the trawler fleet along the south-east Pacific coast of Chile.



Author(s):  
Humberto Luis Cappozzo ◽  
William F. Perrin






2016 ◽  
Vol 174 (2) ◽  
pp. 325-327
Author(s):  
Paula S. Polizzi ◽  
L. N. Chiodi Boudet ◽  
A. Ponce de León ◽  
M. Quiroga ◽  
D. H. Rodríguez ◽  
...  


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