The first case of conjoined twin harbour porpoises Phocoena phocoena (Mammalia, Cetacea)

Erwin J.O. Kompanje; K.C.J. Camphuysen; M.F. Leopold

The first case of conjoined twin harbour porpoises Phocoena phocoena (Mammalia, Cetacea)

Erwin J.O. Kompanje, K.C.J. Camphuysen, M.F. Leopold

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Abstract

The harbour porpoise (Phocoena phocoena) is the smallest and most abundant cetacean in NW European continental shelf waters. Their global abundance numbers at least ~700,000 individuals. Within the North Sea, total abundance has recently been estimated at approximately 345,000 animals. The species reproduces at a rate of one offspring every 1-2 years. In this article we describe a case of conjoined twins in the harbour porpoise: a parapagus dicephalus bycaught in the Southern North Sea in May 2017. Reports of conjoined twins in wild mammals are extremely scarce. This case concerns the second known case of twinning and the first case of conjoined twins in P. phocoena, the fourth known case of parapagus dicephalus in any cetacean species and the tenth known case of
conjoined twinning in a cetacean species.

Original language	English
Pages (from-to)	1-5
Journal	Deinsea
Volume	17
Publication status	Published - 2017

Keywords

Phocoena phocoena
harbour porpoise
conjoined twins
parapagus dicephalus
dysmorphology
North Sea

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https://edepot.wur.nl/417381

Cite this

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title = "The first case of conjoined twin harbour porpoises Phocoena phocoena (Mammalia, Cetacea)",

abstract = "The harbour porpoise (Phocoena phocoena) is the smallest and most abundant cetacean in NW European continental shelf waters. Their global abundance numbers at least ~700,000 individuals. Within the North Sea, total abundance has recently been estimated at approximately 345,000 animals. The species reproduces at a rate of one offspring every 1-2 years. In this article we describe a case of conjoined twins in the harbour porpoise: a parapagus dicephalus bycaught in the Southern North Sea in May 2017. Reports of conjoined twins in wild mammals are extremely scarce. This case concerns the second known case of twinning and the first case of conjoined twins in P. phocoena, the fourth known case of parapagus dicephalus in any cetacean species and the tenth known case ofconjoined twinning in a cetacean species.",

keywords = "Phocoena phocoena, harbour porpoise, conjoined twins, parapagus dicephalus, dysmorphology, North Sea",

author = "Kompanje, {Erwin J.O.} and K.C.J. Camphuysen and M.F. Leopold",

year = "2017",

language = "English",

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journal = "Deinsea",

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TY - JOUR

T1 - The first case of conjoined twin harbour porpoises Phocoena phocoena (Mammalia, Cetacea)

AU - Kompanje, Erwin J.O.

AU - Camphuysen, K.C.J.

AU - Leopold, M.F.

PY - 2017

Y1 - 2017

N2 - The harbour porpoise (Phocoena phocoena) is the smallest and most abundant cetacean in NW European continental shelf waters. Their global abundance numbers at least ~700,000 individuals. Within the North Sea, total abundance has recently been estimated at approximately 345,000 animals. The species reproduces at a rate of one offspring every 1-2 years. In this article we describe a case of conjoined twins in the harbour porpoise: a parapagus dicephalus bycaught in the Southern North Sea in May 2017. Reports of conjoined twins in wild mammals are extremely scarce. This case concerns the second known case of twinning and the first case of conjoined twins in P. phocoena, the fourth known case of parapagus dicephalus in any cetacean species and the tenth known case ofconjoined twinning in a cetacean species.

AB - The harbour porpoise (Phocoena phocoena) is the smallest and most abundant cetacean in NW European continental shelf waters. Their global abundance numbers at least ~700,000 individuals. Within the North Sea, total abundance has recently been estimated at approximately 345,000 animals. The species reproduces at a rate of one offspring every 1-2 years. In this article we describe a case of conjoined twins in the harbour porpoise: a parapagus dicephalus bycaught in the Southern North Sea in May 2017. Reports of conjoined twins in wild mammals are extremely scarce. This case concerns the second known case of twinning and the first case of conjoined twins in P. phocoena, the fourth known case of parapagus dicephalus in any cetacean species and the tenth known case ofconjoined twinning in a cetacean species.

KW - Phocoena phocoena

KW - harbour porpoise

KW - conjoined twins

KW - parapagus dicephalus

KW - dysmorphology

KW - North Sea

M3 - Article

VL - 17

SP - 1

EP - 5

JO - Deinsea

JF - Deinsea

SN - 2468-8983

ER -

The first case of conjoined twin harbour porpoises Phocoena phocoena (Mammalia, Cetacea)

Abstract

Keywords

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