A newly discovered species of living baleen whale

Wada, Shiro; Oishi, Masatsugu; Yamada, Tadasu K.

doi:10.1038/nature02103

Cited by 169 publications

(218 citation statements)

References 4 publications

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“…While for half a century most authors followed Junge (1950) who synonymized B. brydei with B. edeni, recently species-level differences are again recognized (e.g. Wada et al, 2003;Best, 2007;Kanda et al, 2007;Yamada et al, 2008).…”

Section: Family Balaenopteridae Gray 1864mentioning

confidence: 99%

Species occurrence of cetaceans in Guinea, including humpback whales with southern hemisphere seasonality

Bamy¹,

Waerebeek

Bah³

et al. 2010

Mar. Biodivers. Rec.

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An initial inventory of the dolphins and whales occurring in Guinea's coastal waters is documented primarily from specimens and photographic evidence obtained from strandings and by-catches. Seven species are fully validated, four odontocetes, Tursiops truncatus, Sousa teuszii, Stenella frontalis, Kogia breviceps and three balaenopterid whales: Balaenoptera brydei, Balaenoptera acutorostrata and Megaptera novaeangliae. Another three reported species (Globicephala macrorhynchus, Steno bredanensis and Delphinus delphis) are insufficiently supported but thought to be valid. Small cetaceans landed as by-catch and a stranded whale were used for human consumption, but no evidence of substantial takes, directed or by-catch, was found. However, concern is raised about even minimal takes of the vulnerable Atlantic humpback dolphin. The seasonal presence of three confirmed humpback whales, two strandings (July and September) and a sighting (October), is synchronous with the species' southern hemisphere wintering/breeding season in low latitudes. We hypothesize that these whales may comprise the north-westernmost range of the population that breeds/overwinters in coastal waters of the Bight of Benin, northern Gulf of Guinea.

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Section: Family Balaenopteridae Gray 1864mentioning

confidence: 99%

Species occurrence of cetaceans in Guinea, including humpback whales with southern hemisphere seasonality

Bamy¹,

Waerebeek

Bah³

et al. 2010

Mar. Biodivers. Rec.

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“…For comparative purposes, mtDNA control region sequences of B. edeni published by Yoshida & Kato (1999) and Wada et al (2003) and of B. brydei published by Kanda et al (2007), were included in the estimation. The genealogy was rooted using the homologous sequence from B. omurai and B. borealis published in Wada et al (2003). To estimate support for each node a total of 1,000 bootstrap simulations were conducted and the majority-rule consensus genealogy estimated.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

“…Some authors (e.g., Wada et al 2003) recognize two species, the smaller one B. edeni Anderson, 1879 (Eden's whale) and a larger one B. brydei Olsen, 1913 (Bryde's whale), while others (e.g., Kershaw et al 2013) assign these species a sub-specific status: B. edeni edeni and B. edeni brydei, respectively. The smaller one inhabits primarily coastal and continental shelf waters of the Northern Indian Ocean and the western Pacific Ocean while the larger one inhabits tropical and warm temperature waters worldwide (Rice 1998).…”

Section: Introductionmentioning

confidence: 99%

“…The smaller one inhabits primarily coastal and continental shelf waters of the Northern Indian Ocean and the western Pacific Ocean while the larger one inhabits tropical and warm temperature waters worldwide (Rice 1998). Wada et al (2003) provided genetics, external morphology and osteology evidences to separate B. brydei and B. edeni into two distinct species. The present study follows the taxonomic classification of Wada et al (2003).…”

Section: Introductionmentioning

confidence: 99%

“…Wada et al (2003) provided genetics, external morphology and osteology evidences to separate B. brydei and B. edeni into two distinct species. The present study follows the taxonomic classification of Wada et al (2003).…”

Section: Introductionmentioning

confidence: 99%

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Population genetic structure of the South American Bryde's whale

Pastene¹,

Acevedo

Siciliano

et al. 2015

Rev. biol. mar. oceanogr.

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Resumen.-Un análisis genético basado en secuencias de la región control del ADN mitocondrial fue realizado para investigar tanto la identidad de la especie como la estructura genética poblacional de la ballenas de Bryde Sudamericanas. El análisis genético se basó en muestras históricas, biopsias y varamientos de Chile (n= 10) y Brasil (n= 8). Para fines de comparación, secuencias publicadas de ballenas de Bryde de diferentes localidades de los océanos Índico y Pacífico (incluyendo Perú, n= 24) fueron incorporadas en los análisis. El análisis filogenético identificó las ballenas de Bryde de América del Sur como Balaenoptera brydei. Ninguna diferenciación genética estadísticamente significativa fue encontrada entre ballenas de Bryde de Chile y Perú. Sin embargo, fuertes diferencias genéticas se encontraron entre animales del Atlántico Sur occidental (Brasil) y Pacífico Sur oriental (Perú y Chile). También fuertes diferencias genéticas fueron encontradas entre todas las localidades de América del Sur y aquellos del Pacífico Norte occidental, Fiji y Java. Estos resultados sugieren movimiento de B. brydei en el Pacifico Sur oriental en el rango latitudinal correspondientes a Chile y Perú. Estos resultados también sugieren ningún o muy limitado movimiento de ballenas entre los océanos del Pacífico Sur y Atlántico Sur. Esto es consistente con la idea de que B. brydei no se distribuye más al sur de los 40ºS en ambos lados de América del Sur. Palabras clave: Balaenoptera brydei, ADN mitocondrial, Pacífico Sur oriental, Atlántico Sur occidentalAbstract.-A genetic analysis based on mitochondrial DNA control region sequences was conducted to investigate both species identity and populations genetic structure of South American Bryde's whales. The genetic analysis was based on historical, biopsy and stranding samples from Chile (n= 10) and Brazil (n= 8). For comparative purposes published sequences of the Bryde's whales from different localities of the Indian and Pacific Oceans (including Peru, n= 24) were incorporated into the analysis. Results of the phylogenetic analysis identified the Bryde's whales of South America as Balaenoptera brydei. No statistically significant genetic differentiation was found between Chilean and Peruvian Bryde's whales. However, striking differences were found between western South Atlantic (Brazil) and eastern South Pacific (Peru and Chile) animals. In addition, striking genetic differences were found between all South American localities and those from the western North Pacific, Fiji and Java. These results suggest movement of B. brydei in the eastern South Pacific in the latitudinal range corresponding to Chile and Peru. These results also suggest no or very limited mov ement of whales between the South Pacific and the South Atlantic Oceans. This is consistent with the notion that B. brydei is not distributed further south of approximately 40ºS on both sides of South America.

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Phylogenetics of Baleen Whales

Jackson¹

2010

Encyclopedia of Life Sciences

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At present, there are 15 species of baleen whales that belong to the monophyletic suborder Mysticeti. The family‐level designations of Balaenidae (right and bowhead whales) and Neobalaenidae (pygmy right whales) are strongly supported and well resolved. However, family‐level designations and inter‐relationships among the remaining species and genera of Balaenopteridae (rorquals) and Eschrichtiidae (grey whales) are less well resolved. Taxonomic relationships vary between studies, reconstruction methods and marker types, despite strong morphological support for the placement of Eschrichtiidae as a sister group to the Balaenopteridae. This phylogenetic uncertainty appears to have originated from a rapid Miocene radiation of both families, which has resulted in incomplete sorting of genetic lineages and therefore conflicting phylogenetic signals among nuclear and mitochondrial loci. The earliest radiation of baleen whales (suborder Mysticeti) occurred in the Late Eocene. The fossil record of subsequent species diversifications has been strongly correlated with changes in fossil diatom diversity and isotopic oxygen levels over time. Key Concepts: The monophyletic suborder Mysticeti is composed of four families and 15 species of baleen whales. Mysticete families Balaenidae and Neobalaenidae are strongly supported and well resolved. Molecular genetic support for inter‐species relationships within and between Balaenopteridae and Eschrichtiidae is poorly resolved and suggests a rapid Miocene radiation of lineages at the origin of these families.

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A newly discovered species of living baleen whale

Cited by 169 publications

References 4 publications

Species occurrence of cetaceans in Guinea, including humpback whales with southern hemisphere seasonality

Species occurrence of cetaceans in Guinea, including humpback whales with southern hemisphere seasonality

Population genetic structure of the South American Bryde's whale

Phylogenetics of Baleen Whales

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