Occurrence, residency patterns and habitat use of the bottlenose dolphin, Tursiops truncatus truncatus, on two Marine Protected Areas in Southeastern Brazil.

The common bottlenose dolphin, Tursiops truncatus, is widely distributed. However, information about its ecology and behavior in Brazilian waters is scarce especially about the 'offshore' ecotype, an Evolutionarily Significant Unit in the Southwest Atlantic. We report for the first time the occurrence, behavior and habitat use of bottlenose dolphins Tursiops truncatus truncatus, in two Marine Protected Areas (MPA) in Cabo Frio coast, Brazil. There were fifteen sightings of different groups throughout the year. An overall of 429 individuals were photo-identified. 90.7% dolphins did not present a degree of residence, 1.4% dolphins were considered with high residency to the area, 5.8% medium and 2.1% low. Our habitat use map indicated dolphins were more common off ~10km from Cabo Frio municipality and between depths around 20-70m. Bottlenose dolphins on Cabo Frio coast were more frequently observed performing travelling, followed by foraging and socio-sexual behavior. Group sizes varied from three to 120 individuals. Larger groups were observed when travelling and foraging. Despite the existence of two local Marine Protected Areas, the fast human development in Cabo Frio may threaten this important area for bottlenose dolphins in terms of food resources and shelter from predators.

[1]  Paul M. Thompson,et al.  Discrete or not so discrete: long distance movements by coastal bottlenose dolphins in UK and Irish waters , 2023, J. Cetacean Res. Manage..

[2]  Y. Chun,et al.  Habitat use models of spatially auto-correlated data: a case study of the common bottlenose dolphin, Tursiops truncatus truncatus, in southeastern Brazil , 2019, Marine Biology Research.

[3]  P. H. Ott,et al.  Temporal–spatial distribution of an island-based offshore population of common bottlenose dolphins (Tursiops truncatus) in the equatorial Atlantic , 2017 .

[4]  P. H. Ott,et al.  Effective population size of an offshore population of bottlenose dolphins, Tursiops truncatus, from the São Pedro and São Paulo Archipelago, Brazil , 2017 .

[5]  D. Tavares,et al.  Bottlenose dolphins (Tursiops truncatus, Montagu 1821) in central-northern coast of Rio de Janeiro State, Brazil: stranding patterns and insights into feeding habits , 2017 .

[6]  L. Möller,et al.  Biopsy darting of common bottlenose dolphins (Tursiops truncatus) in southern Brazil: evaluating effectiveness, short-term responses and wound healing , 2017 .

[7]  P. H. Ott,et al.  Long-term site fidelity and residency patterns of bottlenose dolphins (Tursiops truncatus) in the Tramandaí Estuary, southern Brazil , 2017 .

[8]  L. Lodi.  Update on the current occurrence of Tursiops truncatus (Montagu, 1821) in Rio de Janeiro State , 2017 .

[9]  I. Moreno,et al.  Revalidation of Tursiops gephyreus Lahille, 1908 (Cetartiodactyla: Delphinidae) from the southwestern Atlantic Ocean , 2016, Journal of Mammalogy.

[10]  A. Cañadas,et al.  Bottlenose dolphin Tursiops truncatus group dynamics, site fidelity, residency and movement patterns in the Madeira Archipelago (North-East Atlantic) , 2016 .

[11]  P. Rosel,et al.  Offshore and coastal common bottlenose dolphins of the western South Atlantic face-to-face: What the skull and the spine can tell us , 2016 .

[12]  A. Zerbini,et al.  Diversity and Distribution Patterns of Cetaceans in the Subtropical Southwestern Atlantic Outer Continental Shelf and Slope , 2016, PloS one.

[13]  SM Dippenaar.  Biodiversity and studies of marine symbiotic siphonostomatoids off South Africa , 2016 .

[14]  P. Fruet,et al.  Identifying critical areas to reduce bycatch of coastal common bottlenose dolphins Tursiops truncatus in artisanal fisheries of the subtropical western South Atlantic , 2015 .

[15]  L. Möller,et al.  Abundance and demography of bottlenose dolphins inhabiting a subtropical estuary in the Southwestern Atlantic Ocean , 2015 .

[16]  F. Visser,et al.  Evidence for Distinct Coastal and Offshore Communities of Bottlenose Dolphins in the North East Atlantic , 2015, PloS one.

[17]  D. Lusseau,et al.  Estimating spatial, temporal and individual variability in dolphin cumulative exposure to boat traffic using spatially explicit capture–recapture methods , 2015 .

[18]  L. Lodi,et al.  A missing piece from a bigger puzzle: declining occurrence of a transient group of bottlenose dolphins off Southeastern Brazil , 2014 .

[19]  L. Beheregaray,et al.  Remarkably low genetic diversity and strong population structure in common bottlenose dolphins (Tursiops truncatus) from coastal waters of the Southwestern Atlantic Ocean , 2014, Conservation Genetics.

[20]  C. Gorini,et al.  Origin of step-like and lobate seafloor features along the continental shelf off Rio de Janeiro State, Santos basin-Brazil , 2013 .

[21]  P. C. Simões‐Lopes,et al.  Seasonal abundance and adult survival of bottlenose dolphins (Tursiops truncatus) in a community that cooperatively forages with fishermen in southern Brazil , 2013 .

[22]  D. Lusseau,et al.  The structure of a bottlenose dolphin society is coupled to a unique foraging cooperation with artisanal fishermen , 2012, Biology Letters.

[23]  R. Calado,et al.  First record of Calcinus tubularis on the southern coast of Portugal (Crustacea: Decapoda: Anomura: Diogenidae) , 2011 .

[24]  S. Laran,et al.  Distribution, abundance and movements of the bottlenose dolphin in the Pelagos sanctuary MPA. , 2011 .

[25]  J. Alessi,et al.  Distribution, abundance, and movements of the bottlenose dolphin (Tursiops truncatus) in the Pelagos Sanctuary MPA (north‐west Mediterranean Sea) , 2011 .

[26]  S. M. Simão,et al.  Coordinated feeding tactics of the Guiana dolphin, Sotalia guianensis (Cetacea: Delphinidae), in Ilha Grande Bay, Rio de Janeiro, Brazil , 2011 .

[27]  P. Kinas,et al.  Abundance of bottlenose dolphins, Tursiops truncatus (Cetacea: Delphinidae), inhabiting the Patos Lagoon estuary, southern Brazil: implications for conservation , 2011 .

[28]  P. Kinas,et al.  Temporal trends in mortality and effects of by-catch on common bottlenose dolphins, Tursiops truncatus, in southern Brazil , 2010, Journal of the Marine Biological Association of the United Kingdom.

[29]  Daniel C. Dunn,et al.  Marine Geospatial Ecology Tools: An integrated framework for ecological geoprocessing with ArcGIS, Python, R, MATLAB, and C++ , 2010, Environ. Model. Softw..

[30]  S. M. Simão,et al.  Degrees of residence of Guiana dolphins (Sotalia guianensis) in Ilha Grande Bay, south-eastern Brazil: a preliminary assessment , 2010, Journal of the Marine Biological Association of the United Kingdom.

[31]  D. Lusseau,et al.  Effects of tourist boats on the behaviour of Indo-Pacific bottlenose dolphins off the south coast of Zanzibar. , 2010 .

[32]  Fábio G. Daura-Jorge,et al.  Notas sobre a distribuição, tamanho de grupo e comportamento do golfinho Tursiops truncatus (Cetacea: Delphinidae) na Ilha de Santa Catarina, sul do Brasil , 2008 .

[33]  L. Lodi,et al.  Evaluation of the video-identification technique applied to bottlenose dolphins (Tursiops truncatus) in Cagarras Archipelago, Rio de Janeiro, Brazil , 2008, Journal of the Marine Biological Association of the United Kingdom.

[34]  P. Hammond,et al.  Ranging patterns of bottlenose dolphins living in oceanic waters: implications for population structure , 2008 .

[35]  P. Halpin,et al.  Fine-scale habitat modeling of a top marine predator: do prey data improve predictive capacity? , 2008, Ecological applications : a publication of the Ecological Society of America.

[36]  J. Mann,et al.  The size, composition and function of wild bottlenose dolphin (Tursiops sp.) mother–calf groups in Shark Bay, Australia , 2008, Animal Behaviour.

[37]  P. Flores,et al.  Ecology of marine tucuxi, Sotalia guianensis , and bottlenose dolphin, Tursiops truncatus , in Baía Norte, Santa Catarina state, southern Brazil , 2006 .

[38]  L. Wedekin,et al.  Distribution and habitat use of small cetaceans off Abrolhos Bank, eastern Brazil , 2006 .

[39]  A. M. S. Pires-Vanin,et al.  Benthic megafauna communities under the influence of the South Atlantic Central Water intrusion onto the Brazilian SE shelf: A comparison between an upwelling and a non-upwelling ecosystem , 2006 .

[40]  Patrick N. Halpin,et al.  Techniques for cetacean-habitat modeling , 2006 .

[41]  D. Ainley,et al.  Marine mammal occurrence and ocean climate off central California, 1986 to 1994 and 1997 to 1999 , 2005 .

[42]  M. Spalding,et al.  Measuring the extent and effectiveness of protected areas as an indicator for meeting global biodiversity targets , 2005, Philosophical Transactions of the Royal Society B: Biological Sciences.

[43]  P. Hammond,et al.  Considering the temporal when managing the spatial: a population range expansion impacts protected areas‐based management for bottlenose dolphins , 2004 .

[44]  J. Joyeux,et al.  Trophic structure patterns of Brazilian reef fishes: a latitudinal comparison , 2004 .

[45]  M. Bearzi.  Aspects of the ecology and behaviour of bottlenose dolphins (Tursiops truncatus) in Santa Monica Bay, California , 2004, J. Cetacean Res. Manage..

[46]  D. Lusseau.  Effects of Tour Boats on the Behavior of Bottlenose Dolphins: Using Markov Chains to Model Anthropogenic Impacts , 2003 .

[47]  H. H. Edwards,et al.  Status and ecology of Sotalia fluviatilis in the Cayos Miskito Reserve, Nicaragua , 2001 .

[48]  P. Motta,et al.  Cardumes da sardinha-verdadeira, Sardinella brasiliensis (Steindachner), em águas costeiras do estado do Rio de Janeiro, Brasil , 2000 .

[49]  D. Weller,et al.  OCCURRENCE, DISTRIBUTION, SITE FIDELITY, AND SCHOOL SIZE OF BOTTLENOSE DOLPHINS (TURSIOPS TRUNCATUS) OFF SAN DIEGO, CALIFORNIA , 1999 .

[50]  E. Slooten.  Behavior of Hector's Dolphin: Classifying Behavior by Sequence Analysis , 1994 .

[51]  W. Magnusson.  The words population and community have outlived their usefulness in ecological publications , 2013 .

[52]  S. M. Simão,et al.  Distribution of Tursiops truncatus in Southeastern Brazil: a Modeling Approach for Summer Sampling , 2013 .

[53]  R. Coutinho,et al.  Biophysical interactions in the Cabo Frio upwelling system, southeastern Brazil , 2012 .

[54]  P. Hammond,et al.  Incorporating information on bottlenose dolphin distribution into marine protected area design , 2012 .

[55]  D. Bjorklund,et al.  Evidence of teaching in atlantic spotted dolphins (Stenella frontalis) by mother dolphins foraging in the presence of their calves , 2008, Animal Cognition.

[56]  Mónica A. Silva,et al.  Occurrence and distribution of cetaceans in the waters around the Azores (Portugal), Summer and Autumn 1999- 2000 , 2003 .

[57]  Leszek Karczmarski,et al.  HABITAT USE AND PREFERENCES OF INDO-PACIFIC HUMPBACK DOLPHINS SOUSA CHINENSIS IN ALGOA BAY, SOUTH AFRICA , 2000 .

[58]  Janet Mann,et al.  BEHAVIORAL SAMPLING METHODS FOR CETACEANS: A REVIEW AND CRITIQUE , 1999 .

[59]  P. C. Simões‐Lopes,et al.  Residence patterns and site fidelity in bottlenose dolphins, Tursiops truncatus (Montagu) (Cetacea, Delphinidae) off Southern Brazil , 1999 .

[60]  C. Carbonel.  Modelling of upwelling in the coastal area of Cabo Frio (Rio de Janeiro - Brazil) , 1998 .

[61]  Paulo César Carneiro Lopes.  Ocorrência de uma população de sotalia fluviatilis Gervais, 1853, (cetácea, delphinidae) no limite sul de sua distribuição, Santa Catarina, Brasil , 1988 .