Identification of the enigmatic Deraniyagala's beaked whale.

IF 4.1 2区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES iScience Pub Date : 2024-11-26 eCollection Date: 2024-12-20 DOI:10.1016/j.isci.2024.111465

Songhai Li, Mingming Liu, Wenzhi Lin, Lijun Dong, Mingli Lin, Hui Kang, Inge Seim

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Abstract

It is essential to discover and identify animals in species level in the wild to achieve the collection of baseline data and benefit better understanding and conservation of the rare species. However, this is far from being realized for many beaked whales in the deep sea, including the Deraniyagala's beaked whale (Mesoplodon hotaula), which is one of the least-known whales with no confirmed live sightings at sea yet all over the world. Here, we provide the first robust field identification of M. hotaula, by integrating DNA sequencing of skin biopsies, acoustic data, and photographs. Our discovery illustrates that M. hotaula has distinguishing acoustic and morphological characteristics, enabling us to distinguish it from other mesoplodonts in the wild. The identification of M. hotaula in species level is rapidly advancing our knowledge on its distribution range, habitat characteristics, behavior, ontogenetic color pattern development, group size and structure, and potential threats.

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神秘的Deraniyagala喙鲸的鉴定。

在野外发现和鉴定物种水平的动物，以实现基线数据的收集，有利于更好地了解和保护稀有物种。然而，对于深海中的许多喙鲸来说，这还远远没有实现，包括Deraniyagala的喙鲸（Mesoplodon hotaula），这是世界上最不为人知的鲸鱼之一，在海上还没有被证实的现场目击。在这里，我们通过整合皮肤活检、声学数据和照片的DNA测序，提供了第一个强大的现场鉴定M. hotaula。我们的发现表明，M. hotaula具有独特的声学和形态学特征，使我们能够将其与野生的其他中齿龙区分开来。在物种水平上对其进行鉴定，使我们对其分布范围、生境特征、行为、个体发生色纹发育、种群大小和结构以及潜在威胁等方面的认识迅速提高。

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来源期刊

iScience Multidisciplinary-Multidisciplinary

CiteScore

7.20

自引率

1.70%

发文量

1972

审稿时长

6 weeks

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