Matheu, Argentina
Matheu, Argentina

Time filter

Source Type

Tamini L.L.,Albatross Task Force Argentina | Chavez L.N.,Albatross Task Force Argentina | Gongora M.E.,Subsecretaria de Pesca | Gongora M.E.,National University of la Patagonia | And 3 more authors.
Polar Biology | Year: 2015

Seabird bycatch represents one of the main threats to vulnerable seabird populations, particularly albatross and petrels, and requires urgent conservation management interventions at a global scale. We studied seabird mortality associated with demersal factory trawl vessels that target Argentine Hake Merluccius hubbsi along the Argentine Patagonian Shelf and tested the efficacy of bird-scaring lines as a seabird bycatch mitigation measure. From November 2008 to June 2010, dedicated seabird observers recorded three sources of seabird mortality: entanglements with the trawl net; collisions with the trawl cables (corpses hauled aboard); and collisions with trawl cables (birds observed killed or injured). During 141 days and 389 hauls, we recorded 17 seabird species associated with vessels, ten of which interacted with fishing gear. The most vulnerable species was the black-browed albatross (Thalassarche melanophris). From 41 recovered corpses, we identified black-browed albatross mortality rates of 0.013 and 0.093 birds/haul for net entanglement and cable collision (corpses hauled aboard), respectively. From counts of birds killed or injured by cable collisions, we estimate a black-browed albatross mortality rate of 0.237 birds/h. We use official fishing effort data to consider the potential scale of seabird mortality for the entire fleet and identify the main factors contributing to seabird mortality in this fishery. Bird-scaring lines eliminated seabird mortality caused by collisions with trawl cables and are recommended as a short- to medium-term measure to mitigate seabird mortality in this fishery. © 2015 Springer-Verlag Berlin Heidelberg


Chavez L.N.,Albatross Task Force Argentina | Tamini L.L.,Albatross Task Force Argentina | Coppa J.J.,Instituto Nacional Of Investigacion Y Desarrollo Pesquero Inidep | Aguilar E.E.,Instituto Nacional Of Investigacion Y Desarrollo Pesquero Inidep
Hornero | Year: 2014

We report new sightings of Spectacled Petrel (Procellaria conspicillata) attending on fishing vessels in the Argentina Sea. Between 2008 and 2014, 18 individuals were observed in the Argentine-Uruguayan Common Fishing Zone and near the permanent closure zone to fishing common hake (Merluccius hubbsi). Most observations (75%) were made in the trawl operations with discards. We did not observe mortality; however, the species could be vulnerable to its incidental capture. © 2014 Association Ornitologica del Plata. All rights reserved.


Zevallos D.G.,CONICET | Tamini L.L.,Albatross Task Force Argentina | Seco Pon J.P.,CONICET | Gongora M.E.,Subsecretaria de Pesca | And 2 more authors.
Hornero | Year: 2012

At least about 70 species of seabirds feed in the waters of the argentinean continental shelf, which is probably the area with the highest biomass of albatrosses in the world. the distribution of these birds at sea generally coincides with commercial fisheries in areas with high marine productivity, so their interactions can be frequent and diverse. the study of the argentine sea considering seabirds as part of an integrated approach represents a challenge. some aspects of the biology of these birds could act as environmental indicators to understand systems, assess their conservation status and analyze their relationships with global processes. although interactions between seabirds and some fishing fleets operating on the patagonian shelf have not yet been addressed, the knowledge of the ecology, behaviour and conservation of this group of birds has increased significantly in the last decade. including ecosystem considerations into fisheries management should contribute to long-term food security and ensure effective conservation and sustainable use of the ecosystem and its resources.


Pon J.P.S.,CONICET | Tamini L.,Albatross Task Force Argentina
Revista Brasileira de Ornitologia | Year: 2013

Shy Thalassarche cauta and White-capped albatrosses T. steadi are two taxa for which specific status has recently been posited, however, owing to their morphological resemblance they are frequently referred to as "shy-type" albatrosses. Information on the distribution of this albatross complex in the Argentine Continental Shelf is particularly scarce and limited to only a few observations, chiefly obtained in the Argentine-Uruguayan Common Fishing Zone and in the vicinity of the Malvinas (Falkland) Islands; there is virtually no information for other oceanic areas (continental shelf, shelf-break area and slope). New records of shytype albatrosses were obtained during the development of project assessments of the interaction between commercial trawl fisheries and seabirds attending waters of the Argentine Continental Shelf. The observation effort (counts during trawling operations) covered all seasons in a four-year span. These records provide new information on the presence and abundance of this albatross complex for a wide latitudinal range off Argentina that is also an area of operation of trawling fishing fleets (e.g. Argentine hake fishery). The records presented here add to the recent body of evidence demonstrating that individuals of T. cauta/steadi, especially immatures, and to some extent non-breeding adults, attend waters of the southern South Atlantic, where they associate with commercial trawlers in Argentina.


Tamini L.L.,Albatross Task Force Argentina | Chavez L.N.,Albatross Task Force Argentina
Polar Biology | Year: 2014

Buller’s Albatross, Thalassarche bulleri, is a New Zealand breeding endemic that is frequently observed in the subtropical and sub-Antarctic South Pacific Ocean between Australia and Peru. However, in the South Atlantic Ocean, it is a vagrant, as information on its presence in this region is limited to only a few sightings. Here, we report a new record of T. bulleri in the south-western Atlantic Ocean off Argentina (55°06′13″S, 66°06′44″W) while investigating interactions between commercial fisheries and seabirds. This record provides new information about the distribution of this albatross species and its relation with fisheries outside of its regular range. © 2014, Springer-Verlag Berlin Heidelberg.


Tamini L.L.,Albatross Task Force Argentina | Chavez L.N.,Albatross Task Force Argentina
Polar Biology | Year: 2014

Buller's Albatross, Thalassarche bulleri, is a New Zealand breeding endemic that is frequently observed in the subtropical and sub-Antarctic South Pacific Ocean between Australia and Peru. However, in the South Atlantic Ocean, it is a vagrant, as information on its presence in this region is limited to only a few sightings. Here, we report a new record of T. bulleri in the south-western Atlantic Ocean off Argentina (55°06′13″S, 66°06′44″W) while investigating interactions between commercial fisheries and seabirds. This record provides new information about the distribution of this albatross species and its relation with fisheries outside of its regular range. © 2014 Springer-Verlag Berlin Heidelberg.

Loading Albatross Task Force Argentina collaborators
Loading Albatross Task Force Argentina collaborators