Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil
Humpback whales Megaptera novaenangliae are cosmopolitan animals found throughout the Atlantic Ocean. In this sense, the present study aimed to evaluate the spatial distribution of sightings of M. novaeangliae in the Coastal Zone of Brazil to describe possible spatial patterns and extent of occurren...
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Research, Society and Development
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ftjrsd:oai:ojs.pkp.sfu.ca:article/32463 2024-06-23T07:54:33+00:00 Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil Distribución espacial de avistamientos de ballenas jorobadas Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) en la zona costera de Brasil Distribuição espacial de avistamentos de baleias jubarte Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) na zona costeira do Brasil Martins, Lucas Garcia Silva, Mikaele da Souza, Adrielen Ferreira Duarte, Camilly Pereira Lopes, Karoleni Calandrini Silva, Breno Carvalho da 2022-07-24 application/pdf https://rsdjournal.org/index.php/rsd/article/view/32463 https://doi.org/10.33448/rsd-v11i10.32463 por por Research, Society and Development https://rsdjournal.org/index.php/rsd/article/view/32463/27602 https://rsdjournal.org/index.php/rsd/article/view/32463 doi:10.33448/rsd-v11i10.32463 Copyright (c) 2022 Lucas Garcia Martins; Mikaele da Silva; Adrielen Ferreira Souza; Camilly Pereira Duarte; Karoleni Calandrini Lopes; Breno Carvalho da Silva https://creativecommons.org/licenses/by/4.0 Research, Society and Development; Vol. 11 No. 10; e109111032463 Research, Society and Development; Vol. 11 Núm. 10; e109111032463 Research, Society and Development; v. 11 n. 10; e109111032463 2525-3409 Modeling Migration Geostatistics Density Cetacean Modelado Migración Geoestadística Densidad Cetáceo Modelagem Migração Geoestatística Densidade info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftjrsd https://doi.org/10.33448/rsd-v11i10.32463 2024-06-06T03:31:34Z Humpback whales Megaptera novaenangliae are cosmopolitan animals found throughout the Atlantic Ocean. In this sense, the present study aimed to evaluate the spatial distribution of sightings of M. novaeangliae in the Coastal Zone of Brazil to describe possible spatial patterns and extent of occurrence of the species. Records of sightings of the species acquired on the open data platform System for Monitoring Marine Mammals – SIMMAM were used. The data underwent a filtering process in which duplicate information, data with inaccurate visual identification of the species, inaccurate locations, sightings with a distance greater than 200 miles from the Exclusive Economic Zone (EEZ) and blocked data were excluded. To analyze the distribution patterns of sightings, the Nearest Neighbor functions (G test), Ripley's Bivariate function (K test) and the empty space function (F test) were applied. The analyzes were developed with the aid of the Rstudio software version 4.1.1. The data were also submitted to the Kernel density estimator algorithm with application of the quartic function in a radius of 3° with classification by quartiles. A total of 2889 sightings were processed, the spatial models (G, K and F functions) indicated cluster consistency and strong correlation between sighting points. The Kernel density algorithm showed that humpback whales occur from Amapá to Santa Catarina, but with higher concentrations in the Abrolhos Bank region and on the northeast-east continental shelf, these aggregations are related to breeding areas and calf fattening, while the other less concentrated regions probably correspond to the migratory routes of the species. This study presents a descriptive analysis of distribution patterns of M.novaeangliae for the Brazilian coast and aims to contribute to the knowledge about the spatial ecology of the specie. Las ballenas jorobadas Megaptera novaenangliae son animales cosmopolitas que se encuentran en todo el Océano Atlántico. En este sentido, el presente estudio tuvo como objetivo ... Article in Journal/Newspaper Megaptera novaeangliae Research, Society and Development Ballenas ENVELOPE(-64.167,-64.167,-65.183,-65.183) Tuvo ENVELOPE(13.782,13.782,67.054,67.054) Research, Society and Development 11 10 e109111032463 |
institution |
Open Polar |
collection |
Research, Society and Development |
op_collection_id |
ftjrsd |
language |
Portuguese |
topic |
Modeling Migration Geostatistics Density Cetacean Modelado Migración Geoestadística Densidad Cetáceo Modelagem Migração Geoestatística Densidade |
spellingShingle |
Modeling Migration Geostatistics Density Cetacean Modelado Migración Geoestadística Densidad Cetáceo Modelagem Migração Geoestatística Densidade Martins, Lucas Garcia Silva, Mikaele da Souza, Adrielen Ferreira Duarte, Camilly Pereira Lopes, Karoleni Calandrini Silva, Breno Carvalho da Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
topic_facet |
Modeling Migration Geostatistics Density Cetacean Modelado Migración Geoestadística Densidad Cetáceo Modelagem Migração Geoestatística Densidade |
description |
Humpback whales Megaptera novaenangliae are cosmopolitan animals found throughout the Atlantic Ocean. In this sense, the present study aimed to evaluate the spatial distribution of sightings of M. novaeangliae in the Coastal Zone of Brazil to describe possible spatial patterns and extent of occurrence of the species. Records of sightings of the species acquired on the open data platform System for Monitoring Marine Mammals – SIMMAM were used. The data underwent a filtering process in which duplicate information, data with inaccurate visual identification of the species, inaccurate locations, sightings with a distance greater than 200 miles from the Exclusive Economic Zone (EEZ) and blocked data were excluded. To analyze the distribution patterns of sightings, the Nearest Neighbor functions (G test), Ripley's Bivariate function (K test) and the empty space function (F test) were applied. The analyzes were developed with the aid of the Rstudio software version 4.1.1. The data were also submitted to the Kernel density estimator algorithm with application of the quartic function in a radius of 3° with classification by quartiles. A total of 2889 sightings were processed, the spatial models (G, K and F functions) indicated cluster consistency and strong correlation between sighting points. The Kernel density algorithm showed that humpback whales occur from Amapá to Santa Catarina, but with higher concentrations in the Abrolhos Bank region and on the northeast-east continental shelf, these aggregations are related to breeding areas and calf fattening, while the other less concentrated regions probably correspond to the migratory routes of the species. This study presents a descriptive analysis of distribution patterns of M.novaeangliae for the Brazilian coast and aims to contribute to the knowledge about the spatial ecology of the specie. Las ballenas jorobadas Megaptera novaenangliae son animales cosmopolitas que se encuentran en todo el Océano Atlántico. En este sentido, el presente estudio tuvo como objetivo ... |
format |
Article in Journal/Newspaper |
author |
Martins, Lucas Garcia Silva, Mikaele da Souza, Adrielen Ferreira Duarte, Camilly Pereira Lopes, Karoleni Calandrini Silva, Breno Carvalho da |
author_facet |
Martins, Lucas Garcia Silva, Mikaele da Souza, Adrielen Ferreira Duarte, Camilly Pereira Lopes, Karoleni Calandrini Silva, Breno Carvalho da |
author_sort |
Martins, Lucas Garcia |
title |
Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
title_short |
Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
title_full |
Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
title_fullStr |
Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
title_full_unstemmed |
Spatial distribution of sightings of humpback whales Megaptera novaeangliae (Borowski: 1781) (Cetacea: Balaenopteridae) in the coastal zone of Brazil |
title_sort |
spatial distribution of sightings of humpback whales megaptera novaeangliae (borowski: 1781) (cetacea: balaenopteridae) in the coastal zone of brazil |
publisher |
Research, Society and Development |
publishDate |
2022 |
url |
https://rsdjournal.org/index.php/rsd/article/view/32463 https://doi.org/10.33448/rsd-v11i10.32463 |
long_lat |
ENVELOPE(-64.167,-64.167,-65.183,-65.183) ENVELOPE(13.782,13.782,67.054,67.054) |
geographic |
Ballenas Tuvo |
geographic_facet |
Ballenas Tuvo |
genre |
Megaptera novaeangliae |
genre_facet |
Megaptera novaeangliae |
op_source |
Research, Society and Development; Vol. 11 No. 10; e109111032463 Research, Society and Development; Vol. 11 Núm. 10; e109111032463 Research, Society and Development; v. 11 n. 10; e109111032463 2525-3409 |
op_relation |
https://rsdjournal.org/index.php/rsd/article/view/32463/27602 https://rsdjournal.org/index.php/rsd/article/view/32463 doi:10.33448/rsd-v11i10.32463 |
op_rights |
Copyright (c) 2022 Lucas Garcia Martins; Mikaele da Silva; Adrielen Ferreira Souza; Camilly Pereira Duarte; Karoleni Calandrini Lopes; Breno Carvalho da Silva https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.33448/rsd-v11i10.32463 |
container_title |
Research, Society and Development |
container_volume |
11 |
container_issue |
10 |
container_start_page |
e109111032463 |
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1802646727672463360 |