Cetacean movements in coastal waters of the southwestern Atlantic ocean

Detalhes bibliográficos
Autor(a) principal: Santos,Marcos C. de O.
Data de Publicação: 2019
Outros Autores: Laílson-Brito,José, Flach,Leonardo, Oshima,Júlia E. F., Figueiredo,Giovanna C., Carvalho,Rafael R., Ventura,Elisa S., Molina,Julia M. B., Azevedo,Alexandre F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Biota Neotropica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200209
Resumo: Abstract: Cetaceans were monitored along ca. 700 km of the southeast coast of Brazil (22°S to 25°S) from 1995 to 2014 using photo-identification. The objective of this study was to identify any presence of long-distance movements for monitored cetacean species and discuss implications. Data on long-range movements of four of the monitored species are presented after the analysis of 321,765 photographs taken for individual identification. Seven individuals from four populations of Guiana dolphins (Sotalia guianensis) considered resident to particular estuaries or bays were reported in dispersal involving movement between pairs of protected areas over long-range distances varying between 86 and 135 km. Three cataloged rough-toothed dolphins (Steno bredanensis), first seen in Guanabara Bay, Rio de Janeiro state (22°46'S) in November 2011, were sighted 240 km southwards as members of the same group in coastal waters of São Paulo state (23°46'S) in July 2014. Water depth for those sightings ranged from 16 to 52.7 m; local sightings of rough-toothed dolphins in Brazil have frequently been in shallow waters, but the species global distribution is usually associated with deeper waters. In a 27-day interval in the spring of 2012, a group of 16 orcas (Orcinus orca) travelled ca. 277 km in shallow coastal waters ranging from 20 to 30 m deep. Orcas are commonly observed between November and February in southeast Brazil, probably in search for prey. In summer months between 2012 and 2014, three Bryde's whales (Balaenoptera edeni) sighted in waters ranging from 14 to 49 m deep, moved between 218 and 327 km. Bryde's whales are usually found in local coastal waters where they spend summer months feeding on sardines. To date, these are the longest estimated movements reported to S. guianensis, S. bredanensis, O. orca and B. edeni in the Southwestern Atlantic Ocean.
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spelling Cetacean movements in coastal waters of the southwestern Atlantic oceanMovementsSotalia guianensisSteno bredanensisOrcinus orcaBalaenoptera edeniAbstract: Cetaceans were monitored along ca. 700 km of the southeast coast of Brazil (22°S to 25°S) from 1995 to 2014 using photo-identification. The objective of this study was to identify any presence of long-distance movements for monitored cetacean species and discuss implications. Data on long-range movements of four of the monitored species are presented after the analysis of 321,765 photographs taken for individual identification. Seven individuals from four populations of Guiana dolphins (Sotalia guianensis) considered resident to particular estuaries or bays were reported in dispersal involving movement between pairs of protected areas over long-range distances varying between 86 and 135 km. Three cataloged rough-toothed dolphins (Steno bredanensis), first seen in Guanabara Bay, Rio de Janeiro state (22°46'S) in November 2011, were sighted 240 km southwards as members of the same group in coastal waters of São Paulo state (23°46'S) in July 2014. Water depth for those sightings ranged from 16 to 52.7 m; local sightings of rough-toothed dolphins in Brazil have frequently been in shallow waters, but the species global distribution is usually associated with deeper waters. In a 27-day interval in the spring of 2012, a group of 16 orcas (Orcinus orca) travelled ca. 277 km in shallow coastal waters ranging from 20 to 30 m deep. Orcas are commonly observed between November and February in southeast Brazil, probably in search for prey. In summer months between 2012 and 2014, three Bryde's whales (Balaenoptera edeni) sighted in waters ranging from 14 to 49 m deep, moved between 218 and 327 km. Bryde's whales are usually found in local coastal waters where they spend summer months feeding on sardines. To date, these are the longest estimated movements reported to S. guianensis, S. bredanensis, O. orca and B. edeni in the Southwestern Atlantic Ocean.Instituto Virtual da Biodiversidade | BIOTA - FAPESP2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200209Biota Neotropica v.19 n.2 2019reponame:Biota Neotropicainstname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)instacron:BIOTA - FAPESP10.1590/1676-0611-bn-2018-0670info:eu-repo/semantics/openAccessSantos,Marcos C. de O.Laílson-Brito,JoséFlach,LeonardoOshima,Júlia E. F.Figueiredo,Giovanna C.Carvalho,Rafael R.Ventura,Elisa S.Molina,Julia M. B.Azevedo,Alexandre F.eng2019-03-19T00:00:00Zoai:scielo:S1676-06032019000200209Revistahttps://www.biotaneotropica.org.br/v20n1/pt/https://old.scielo.br/oai/scielo-oai.php||juliosa@unifap.br1676-06111676-0611opendoar:2019-03-19T00:00Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)false
dc.title.none.fl_str_mv Cetacean movements in coastal waters of the southwestern Atlantic ocean
title Cetacean movements in coastal waters of the southwestern Atlantic ocean
spellingShingle Cetacean movements in coastal waters of the southwestern Atlantic ocean
Santos,Marcos C. de O.
Movements
Sotalia guianensis
Steno bredanensis
Orcinus orca
Balaenoptera edeni
title_short Cetacean movements in coastal waters of the southwestern Atlantic ocean
title_full Cetacean movements in coastal waters of the southwestern Atlantic ocean
title_fullStr Cetacean movements in coastal waters of the southwestern Atlantic ocean
title_full_unstemmed Cetacean movements in coastal waters of the southwestern Atlantic ocean
title_sort Cetacean movements in coastal waters of the southwestern Atlantic ocean
author Santos,Marcos C. de O.
author_facet Santos,Marcos C. de O.
Laílson-Brito,José
Flach,Leonardo
Oshima,Júlia E. F.
Figueiredo,Giovanna C.
Carvalho,Rafael R.
Ventura,Elisa S.
Molina,Julia M. B.
Azevedo,Alexandre F.
author_role author
author2 Laílson-Brito,José
Flach,Leonardo
Oshima,Júlia E. F.
Figueiredo,Giovanna C.
Carvalho,Rafael R.
Ventura,Elisa S.
Molina,Julia M. B.
Azevedo,Alexandre F.
author2_role author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,Marcos C. de O.
Laílson-Brito,José
Flach,Leonardo
Oshima,Júlia E. F.
Figueiredo,Giovanna C.
Carvalho,Rafael R.
Ventura,Elisa S.
Molina,Julia M. B.
Azevedo,Alexandre F.
dc.subject.por.fl_str_mv Movements
Sotalia guianensis
Steno bredanensis
Orcinus orca
Balaenoptera edeni
topic Movements
Sotalia guianensis
Steno bredanensis
Orcinus orca
Balaenoptera edeni
description Abstract: Cetaceans were monitored along ca. 700 km of the southeast coast of Brazil (22°S to 25°S) from 1995 to 2014 using photo-identification. The objective of this study was to identify any presence of long-distance movements for monitored cetacean species and discuss implications. Data on long-range movements of four of the monitored species are presented after the analysis of 321,765 photographs taken for individual identification. Seven individuals from four populations of Guiana dolphins (Sotalia guianensis) considered resident to particular estuaries or bays were reported in dispersal involving movement between pairs of protected areas over long-range distances varying between 86 and 135 km. Three cataloged rough-toothed dolphins (Steno bredanensis), first seen in Guanabara Bay, Rio de Janeiro state (22°46'S) in November 2011, were sighted 240 km southwards as members of the same group in coastal waters of São Paulo state (23°46'S) in July 2014. Water depth for those sightings ranged from 16 to 52.7 m; local sightings of rough-toothed dolphins in Brazil have frequently been in shallow waters, but the species global distribution is usually associated with deeper waters. In a 27-day interval in the spring of 2012, a group of 16 orcas (Orcinus orca) travelled ca. 277 km in shallow coastal waters ranging from 20 to 30 m deep. Orcas are commonly observed between November and February in southeast Brazil, probably in search for prey. In summer months between 2012 and 2014, three Bryde's whales (Balaenoptera edeni) sighted in waters ranging from 14 to 49 m deep, moved between 218 and 327 km. Bryde's whales are usually found in local coastal waters where they spend summer months feeding on sardines. To date, these are the longest estimated movements reported to S. guianensis, S. bredanensis, O. orca and B. edeni in the Southwestern Atlantic Ocean.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200209
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1676-0611-bn-2018-0670
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Virtual da Biodiversidade | BIOTA - FAPESP
publisher.none.fl_str_mv Instituto Virtual da Biodiversidade | BIOTA - FAPESP
dc.source.none.fl_str_mv Biota Neotropica v.19 n.2 2019
reponame:Biota Neotropica
instname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
instacron:BIOTA - FAPESP
instname_str Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
instacron_str BIOTA - FAPESP
institution BIOTA - FAPESP
reponame_str Biota Neotropica
collection Biota Neotropica
repository.name.fl_str_mv Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)
repository.mail.fl_str_mv ||juliosa@unifap.br
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