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The Falkland Islands (Malvinas) as sub-Antarctic foraging, migratory and wintering habitat for southern right whales

  • Caroline R. Weir (a1) and Andrew Stanworth (a1)


The historical and contemporary presence of southern right whales (SRWs; Eubalaena australis) around the Falkland Islands (Malvinas) has received little recognition. We assessed SRW occurrence in the Falklands via whaling records, a literature review, systematic surveys (boat, aerial and shore-based), and citizen science sightings. The combined data sources indicated a year-round (peaking in austral summer) presence of SRWs in pelagic areas around the Falklands. In contrast, most nearshore records originated in the austral late autumn and winter (May to August), including a marked increase in sightings along the north-east coast during 2017 compared with previous years. The data support spatio-temporal variation in the use of Falklands waters by SRWs. Pelagic waters appear to comprise summer foraging habitat, and may also be used by animals migrating between the Patagonian shelf and feeding grounds located further south and east. The peak numbers observed in nearshore waters occurred earlier in the winter (July) than those on the Argentinean or Brazilian calving grounds (Aug–Oct). Consequently, some whales may have continued migrating northwards to established breeding areas after departing Falklands waters. A component of the south-west Atlantic population could also be using the islands as a novel wintering destination, for mating and/or socializing (no calving has been confirmed to date). The importance of Falklands waters as a multi-use SRW habitat appears to be increasing. The region is important in the context of addressing current knowledge gaps regarding feeding grounds and migratory corridors highlighted in international SRW conservation and management plans for the wider South-west Atlantic.


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Author for correspondence: Caroline R. Weir, E-mail:


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Allison, C (2016 a) IWC summary catch database. Version 6.1, 18 July 2016. Cambridge: International Whaling Commission.
Allison, C (2016 b) IWC individual catch database. Version 6.1, 18 July 2016. Cambridge: International Whaling Commission.
Argüelles, MB, Fazio, A, Fiorito, C, Pérez-Martínez, D, Coscarella, M and Bertellotti, M. (2016) Diving behavior of southern right whales (Eubalaena australis) in a maritime traffic area in Patagonia, Argentina. Aquatic Mammals 42, 104108.
Arias, M, Coscarella, MA, Romero, MA, Sueyro, N, Svendsen, GM, Crespo, EA and González, RAC (2018) Southern right whale Eubalaena australis in Golfo San Matías (Patagonia Argentina): evidence of recolonisation. PLoS ONE 13, e0207524.
Bannister, JL, Pastene, LA and Burnell, SR (1999) First record of movement of a southern right whale (Eubalaena australis) between warm water breeding grounds and the Antarctic Ocean, south of 60°S. Marine Mammal Science 15, 13371342.
Bannister, JL, Hammond, PS and Double, MC (2016) Population trends in right whales off southern Australia 1993–2015. International Whaling Commission Scientific Committee Document SC/66b/BRG09.
Barendse, J and Best, PB (2014) Shore-based observations of seasonality, movements, and group behavior of southern right whales in a nonnursery area on the South African west coast. Marine Mammal Science 30, 13581382.
Best, PB, Brandão, A and Butterworth, DS (2001) Demographic parameters of southern right whales off South Africa. Journal of Cetacean Research and Management 2, 161169.
Best, PB, Schaeff, CM, Reeb, DR and Palsbøll, PJ (2003) Composition and possible function of social groupings of southern right whales in South African waters. Behaviour 140, 14691494.
Brandão, A, Butterworth, DS, Ross-Gillespie, A and Best, PB (2013) Application of a photoidentification based assessment model to SRWs in South African waters, now including data up to 2012. International Whaling Commission Scientific Committee Document SC/65a/BRG17.
Carroll, EL, Childerhouse, SJ, Fewster, RM, Patenaude, NJ, Steel, D, Dunshea, G, Boren, L and Baker, CS (2013) Accounting for female reproductive cycles in a superpopulation capture–recapture framework. Ecological Applications 23, 16771690.
Carroll, EL, Rayment, WJ, Alexander, AM, Baker, CS, Patenaude, NJ, Steel, D, Constantine, R, Cole, R, Boren, LJ and Childerhouse, S (2014) Reestablishment of former wintering grounds by New Zealand southern right whales. Marine Mammal Science 30, 206220.
Carroll, EL, Baker, CS, Watson, M, Alderman, R, Bannister, J, Gaggiotti, OE, Gröcke, DR, Patenaude, N and Harcourt, R (2015) Cultural traditions across a migratory network shape the genetic structure of southern right whales around Australia and New Zealand. Scientific Reports 5, 16182.
Cooke, JG and Zerbini, AN (2018) Eubalaena australis. IUCN Red List of Threatened Species 2018: e.T8153A50354147.
Cooke, JG, Rowntree, VJ and Payne, RS (2001) Estimates of demographic parameters for southern right whales (Eubalaena australis) observed off Península Valdés, Argentina. Journal of Cetacean Research and Management 2, 125132.
Costa, P, Piedra, M, Franco, P and Paez, E (2007) Distribution and habitat use patterns of southern right whales, Eubalaena australis, off Uruguay. Journal of Cetacean Research and Management 9, 4551.
Crespo, EA, Pedraza, SN, Dans, SL, Svendsen, GM, Degrati, M and Coscarella, MA (2019) The southwestern Atlantic southern right whale, Eubalaena australis, population is growing but at a decelerated rate. Marine Mammal Science 35, 93107.
D'Agostino, VC, Degrati, M, Santinelli, N, Sastre, V, Dans, SL and Hoffmeyer, MS (2018) The seasonal dynamics of plankton communities relative to the foraging of the southern right whale (Eubalaena australis) in northern Patagonian gulfs, Península Valdés, Argentina. Continental Shelf Research 164, 4557.
Danilewicz, D, Moreno, IB, Tavares, M and Sucunza, F (2016) Southern right whales (Eubalaena australis) off Torres, Brazil: group characteristics, movements, and insights into the role of the Brazilian-Uruguayan wintering ground. Mammalia 81, 225234.
Dong, S, Sprintall, J and Gille, ST (2006) Location of the Antarctic polar front from AMSR-E satellite sea surface temperature measurements. Journal of Physical Oceanography 36, 20752089.
Du Pasquier, T (1986) Catch history of French right whaling mainly in the South Atlantic. Reports of the International Whaling Commission 10, 269274.
Frans, VF and Augé, AA (2016) Use of local ecological knowledge to investigate endangered baleen whale recovery in the Falkland Islands. Biological Conservation 202, 127137.
Groch, KR, Palazzo, JT Jr, Flores, PAC, Adler, FR and Fabian, ME (2005) Recent rapid increases in the right whale (Eubalaena australis) population off southern Brazil. Latin American Journal of Aquatic Mammals 4, 4147.
Hamilton, JE (1952) Cetacea of the Falkland Islands. Comunicaciones zoologicas del Museo de Historia Natural de Montevideo 66, 16.
Hipsey, SJ, Delarue, J, Martin, B, Burns, RDJ and Lumsden, E (2013) Static Acoustic Monitoring Programme for the Sea Lion Development Area. JASCO Document 00591, Version 1.0. Technical report by JASCO Applied Sciences for Premier Oil plc. Falkland Islands Business Unit.
Iñíguez Bessega, MA, Boscarol, N, Galletti Vernazzani, B, Le Bas, A, Luna, F, Ponce de León, A and Tombesi, ML (2012) A draft conservation management plan for Southwest Atlantic southern right whales. Document IWC/64/CC7 Rev 1. Available at
International Whaling Commission (1986) Right whales: past and present status. Proceedings of the workshop on the status of right whales. Reports of the International Whaling Commission 10, 114.
International Whaling Commission (2001) Report of the workshop on the comprehensive assessment of right whales: a worldwide comparison. Journal of Cetacean Research Management 2, 161.
International Whaling Commission (2013) Report of the IWC workshop on the assessment of southern right whales. Journal of Cetacean Research and Management 14, 439462.
Matthews, LH (1932) Lobster-krill Anomuran crustacea that are the food of whales. Discovery Reports 5, 467484.
Morais, IOB, Danilewicz, D, Zerbini, AN, Edmundson, W, Hart, IB and Bortolotto, GA (2017) From the southern right whale hunting decline to the humpback whaling expansion: a review of whale catch records in the tropical western South Atlantic Ocean. Mammal Review 47, 1123.
Ohsumi, S and Kasamatsu, F (1986) Recent off-shore distribution of the southern right whale in summer. Reports of the International Whaling Commission 10, 177185.
Payne, R (1986) Long term behavioral studies of the southern right whale (Eubalaena australis). Reports of the International Whaling Commission 10, 161168.
Payne, R, Rowntree, V, Perkins, JS, Cooke, JG and Lankester, K (1990) Population size, trends and reproductive parameters of right whales (Eubalaena australis) off Peninsula Valdes, Argentina. Reports of the International Whaling Commission 12, 271288.
Rayment, W, Dawson, S and Webster, T (2015) Breeding status affects fine-scale habitat selection of southern right whales on their wintering grounds. Journal of Biogeography 42, 463474.
Richards, R (1993) Into the South Seas: the Southern Whale Fishery Comes of Age on the Brazil Banks 1765 to 1812. Wellington: The Paramatta Press, 128 pp.
Rowntree, VJ, Uhart, MM, Sironi, M, Chirife, A, Di Martino, M, La Sala, L, Musmeri, L, Mohamed, N, Andrejuk, J, McAloose, D, Sala, JE, Carribero, A, Rally, H, Franco, M, Adler, FR, Brownell, RL Jr, Seger, J and Rowles, T (2013) Unexplained recurring high mortality of southern right whale Eubalaena australis calves at Península Valdés, Argentina. Marine Ecology Progress Series 493, 275289.
Seyboth, E, Groch, KR, Secchi, ER and Dalla Rosa, L (2015) Habitat use by southern right whales, Eubalaena australis (Desmoulins, 1822), in their main northernmost calving area in the western South Atlantic. Marine Mammal Science 31, 15211537.
Smith, TD, Reeves, RR, Josephson, EA and Lund, JN (2012) Spatial and seasonal distribution of American whaling and whales in the age of sail. PLoS ONE 7, e34905.
Thomas, L, Buckland, ST, Rexstad, EA, Laake, JL, Strindberg, S, Hedley, SL, Bishop, JRB, Marques, TA and Burnham, KP (2010) Distance software: design and analysis of distance sampling surveys for estimating population size. Journal of Applied Ecology 47, 514.
Tormosov, DD, Mikhaliev, YA, Best, PB, Zemsky, VA, Sekiguchi, K and Brownell, RL Jr (1998) Soviet catches of southern right whales Eubalaena australis, 1951–1971. Biological data and conservation implications. Biological Conservation 86, 185197.
Torres, L, Rayment, W, Olavarria, C, Thompson, D, Graham, B, Baker, CS, Patenaude, N, Bury, SJ, Boren, L, Parker, G and Carroll, EL (2017) Demography and ecology of southern right whales Eubalaena australis wintering at sub-Antarctic Campbell Island, New Zealand. Polar Biology 1, 95106.
Townsend, CH (1935) The distribution of certain whales as shown by logbook records of American whaleships. Zoologica 19, 150 + 6 Charts.
Weir, CR (2017) Developing a Site-Based Conservation Approach for Sei Whales Balaenoptera borealis at Berkeley Sound, Falkland Islands. Falklands Conservation report. Version 1.0, September 2017. 115 pp.
Weir, CR (2018) A Preliminary Assessment of Endangered Sei Whales (Balaenoptera borealis) in Two Candidate Key Biodiversity Areas in West Falkland. Falklands Conservation report. Version 1.2. 128 pp.
White, RW, Gillon, KW, Black, AD and Reid, JB (2002) The Distribution of Seabirds and Marine Mammals in Falkland Islands Waters. JNCC Report. ISBN 1 86107 534 0.
Zemsky, VA, Berzin, AA, Mikhalyev, YA and Tormosov, DD (1995) Soviet Antarctic Whaling Data (1947–1972). Center for Russian Environmental Policy, Moscow. 320 pp. [In Russian and English].
Zerbini, A, Rosenbaum, H, Mendez, M, Sucunza, F, Andriolo, A, Harris, G, Clapham, PJ, Sironi, M, Uhart, M and Fernandez Ajó, A (2016) Tracking southern right whales through the southwest Atlantic: an update on movements, migratory routes and feeding grounds. Paper SC/66b/BRG/26 presented to the IWC Scientific Committee, Slovenia.
Zerbini, AN, Fernández Ajó, A, Andriolo, A, Clapham, PJ, Crespo, E, González, R, Harris, G, Mendez, M, Rosenbaum, H, Sironi, M, Sucunza, F and Uhart, M (2018) Satellite tracking of southern right whales (Eubalaena australis) from Golfo San Matías, Rio Negro Province, Argentina. Unpublished paper SC/67B/CMP/17 presented to the IWC Scientific Committee, Slovenia.


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The Falkland Islands (Malvinas) as sub-Antarctic foraging, migratory and wintering habitat for southern right whales

  • Caroline R. Weir (a1) and Andrew Stanworth (a1)


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