Evidence map›Paper›PMID 31471538›Full record

ArticleScientific reports2019

Description of a new species of beaked whale (Berardius) found in the North Pacific.

Tadasu K Yamada, Shino Kitamura, Syuiti Abe, Yuko Tajima, Ayaka Matsuda, James G Mead, Takashi F Matsuishi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 42 citations in OpenAlex.

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  10. The oldest fossil record of the extant genusRoyal Society open science · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Tadasu K YamadaDepartment of Zoology, National Museum of Nature and Science, Tsukuba, Ibaraki, Japan.
Shino KitamuraSanriku Fisheries Research Centre, Iwate University, Kamaishi, Iwate, Japan.
Syuiti AbeFaculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan.
Yuko TajimaDepartment of Zoology, National Museum of Nature and Science, Tsukuba, Ibaraki, Japan.
Ayaka MatsudaFaculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan.
James G MeadDivision of Mammals, Smithsonian Institution, Washington, D.C., USA.
Takashi F MatsuishiFaculty of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan. catm@fish.hokudai.ac.jp.
Hokkaido University · JPNational Museum of Nature and Science · JPIwate Prefectural Kamaishi Hospital · JPSmithsonian Institution · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two types of Berardius are recognised by local whalers in Hokkaido, Japan. The first is the ordinary Baird's beaked whale, B. bairdii, whereas the other is much smaller and entirely black. Previous molecular phylogenetic analyses revealed that the black type is one recognisable taxonomic unit within the Berardius clade but is distinct from the two known Berardius species. To determine the characteristics of the black type, we summarised external morphology and skull osteometric data obtained from four individuals, which included three individuals from Hokkaido and one additional individual from the United States National Museum of Natural History collection. The whales differed from all of their congeners by having the following unique characters: a substantially smaller body size of physically mature individuals, proportionately shorter beak, and darker body colour. Thus, we conclude that the whales are a third Berardius species.

Indexed as

Genetic SpeciationPhylogenyAnimalsEcholocationHumansJapanPacific OceanWhales

Identifiers

PMID31471538
PMCPMC6717206
OpenAlexW2970629785

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.