Anthropogenic debris in the digestive tract of a southern right whale (Eubalaena australis) stranded in Golfo Nuevo, Argentina

2020 ◽  
Vol 161 ◽  
pp. 111738
Author(s):  
L. Alzugaray ◽  
M. Di Martino ◽  
L. Beltramino ◽  
V.J. Rowntree ◽  
M. Sironi ◽  
...  
Author(s):  
Maria A. Mandiola ◽  
Gisela Giardino ◽  
Julián Bastida ◽  
Sergio Morón ◽  
Diego H. Rodríguez ◽  
...  

AbstractIn South-western Atlantic waters, individuals of the southern right whale (SRW) Eubalaena australis spend part of the year (the austral winter and spring) in northern inshore waters where they breed and then migrate to southern feeding grounds during the summer. Mar del Plata (MDP) is located between two main reproductive areas (Península Valdés-Argentina and Santa Catarina-Brazil). The purpose of the present study is to report the presence of SRWs on their journey off the coast of MDP based on sighting records during the past half century. We carried out whale observations through systematic weekly coastal marine mammal surveys in different points of the MDP area from 1966 to 2016. The first SRW sighting was recorded in 1970; since then, sighting frequency has gradually increased, reaching a peak of 28 sightings (N = 63 whales) in 2016. These are unique long-term sighting records of SRWs in Argentina and the first on their journey off the shores of Buenos Aires province. We expect that these results will help local authorities to regulate tourism and other activities in the area and thereby contribute to the conservation of the species.


2014 ◽  
Vol 31 (1) ◽  
pp. 398-403
Author(s):  
Kevin D. Kohl ◽  
Carina F. Marón ◽  
Andrea Chirife ◽  
Matías Di Martino ◽  
M. Denise Dearing ◽  
...  

2014 ◽  
Vol 226 (1) ◽  
pp. 81-92 ◽  
Author(s):  
Mónica R. Buono ◽  
Marta S. Fernández ◽  
R. Ewan Fordyce ◽  
Joy S. Reidenberg

2017 ◽  
Vol 52 (3) ◽  
pp. 372-382 ◽  
Author(s):  
Anthony Raphael Davidson ◽  
William Rayment ◽  
Steve M Dawson ◽  
Trudi Webster ◽  
Elisabeth Slooten

2017 ◽  
Vol 33 (2) ◽  
pp. 669-677 ◽  
Author(s):  
Julia R. G. Dombroski ◽  
Susan E. Parks ◽  
Karina R. Groch ◽  
Paulo A. C. Flores ◽  
Renata S. Sousa-lima

10.5597/00242 ◽  
2019 ◽  
Vol 13 (1-2) ◽  
pp. 2-8
Author(s):  
Mariano Sironi ◽  
Lucía Alzugaray ◽  
Agustina Saez ◽  
Florencia Ornela Vilches ◽  
Alejandro Fernández Ajó ◽  
...  

Whale-watching vessels can be used as platforms to collect scientific data on the natural history of cetaceans. Vessels with underwater viewing decks are exceptional and offer a unique view of the whales. We assessed the underwater viewing platform of the semi-submersible vessel Yellow Submarine that operates off Puerto Pirámides, Península Valdés, Argentina as a platform of opportunity for southern right whale (Eubalaena australis) research. The variables considered during observations included, among others, the age class and sex of the animals observed, behavioral patterns, opportunities for individual photo-identification, distance and duration of the underwater observations and how weather conditions affected data collection. The Yellow Submarine offers a unique platform to make underwater observations of southern right whales in this calving ground. The main limitations are the relatively short duration of the observations and reduced visibility in spring.


2020 ◽  
pp. 157-160
Author(s):  
Antonio B. Greig ◽  
Eduardo R. Secchi ◽  
Alexandre N. Zerbini ◽  
Luciano Dalla Rosa

Although international protection has been granted since 1935, southern right whales have only recently shown signs of recovery, possiblydue to anthropogenic factors. Off Brazil, illegal hunting of right whales occurred until 1973. This paper reports on surveys conducted alongthe southern Brazilian coast and the information recovered on right whale strandings for this area from 1977-1995. In the first 10 years ofthis period only four cases were registered. However, in contrast, 20 cases were counted during the last nine years. These results arediscussed in relation to marine traffic and the fisheries in the area that produce risks of collision and entanglement. Further, the possibilityof storm surges being a preponderant factor in the mortalities in this area is presented. These yearly rates are compared with neighbouringareas that are also inhabited by the right whales. Both possibilities fit the hypothesis that the right whales using the Brazilian coast forbreeding may finally be showing signs of recovery.


PLoS ONE ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. e0207524 ◽  
Author(s):  
Magdalena Arias ◽  
Mariano A. Coscarella ◽  
M. Alejandra Romero ◽  
Nicolás Sueyro ◽  
Guillermo M. Svendsen ◽  
...  

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