한국산 색가오리과(Dasyatidae) 어류 1미기록종, Pteroplatytrygon violacea First Record of the Pelagic Stingray, Pteroplatytrygon violacea (Dasyatidae, Myliobatiformes) from Korea원문보기
매가오리목, 색가오리과에 속하는 Pteroplatytrygon violacea 1개체(전장 1,058 mm)가 2017년 7월 6일 제주도 북서쪽 연안에서 처음으로 유자망에 의해 채집되었다. 이 종은 넓은 주둥이를 갖는 점, 5쌍의 아가미구멍이 있는 점, 꼬리에 1개의 가시가 있는 점, 꼬리의 배쪽에 있는 피습이 꼬리끝까지 이르지 않는 점, 꼬리의 등쪽에는 피습이 없는 점, 그리고 배의 표면은 전체적으로 어두운 자주색을 띠는 것이 특징이다. 이러한 형태적 특징에 따라서 이 종을 P. violacea로 동정하였으며, 표본의 COI 유전자 염기서열을 이용하여 종동정을 확인하였다. 이 미기록종은 배 표면의 체색으로 인해 기존에 붙여진 이름에 따라 종명과 속명을 각각 "보라색가오리"와 "보라색가오리속"으로 제안한다.
매가오리목, 색가오리과에 속하는 Pteroplatytrygon violacea 1개체(전장 1,058 mm)가 2017년 7월 6일 제주도 북서쪽 연안에서 처음으로 유자망에 의해 채집되었다. 이 종은 넓은 주둥이를 갖는 점, 5쌍의 아가미구멍이 있는 점, 꼬리에 1개의 가시가 있는 점, 꼬리의 배쪽에 있는 피습이 꼬리끝까지 이르지 않는 점, 꼬리의 등쪽에는 피습이 없는 점, 그리고 배의 표면은 전체적으로 어두운 자주색을 띠는 것이 특징이다. 이러한 형태적 특징에 따라서 이 종을 P. violacea로 동정하였으며, 표본의 COI 유전자 염기서열을 이용하여 종동정을 확인하였다. 이 미기록종은 배 표면의 체색으로 인해 기존에 붙여진 이름에 따라 종명과 속명을 각각 "보라색가오리"와 "보라색가오리속"으로 제안한다.
A single specimen (1,058 mm TL) of Pteroplatytrygon violacea, belonging to the family Dasyatidae, was firstly collected by using drift gill net in the north-western coastal waters of Jejudo Island, Korea on 6 July, 2017. This species was characterized by having a broadly rounded snout, five pairs of...
A single specimen (1,058 mm TL) of Pteroplatytrygon violacea, belonging to the family Dasyatidae, was firstly collected by using drift gill net in the north-western coastal waters of Jejudo Island, Korea on 6 July, 2017. This species was characterized by having a broadly rounded snout, five pairs of gill openings, tail with a large spine, ventral tail fold not reaching to the tip of tail, no dorsal fold, and ventral surface of disc dark purple. Based on such morphological characters, the specimen was identified as P. violacea and confirmed with the nucleotide sequence of the mitochondrial cytochrome c oxidase subunit I gene. We added P. violacea to the Korean fish fauna and propose the new Korean names, "Bo-ra-saek-ga-o-ri-sok" and "Bo-ra-saek-ga-o-ri" for the genus and species, respectively.
A single specimen (1,058 mm TL) of Pteroplatytrygon violacea, belonging to the family Dasyatidae, was firstly collected by using drift gill net in the north-western coastal waters of Jejudo Island, Korea on 6 July, 2017. This species was characterized by having a broadly rounded snout, five pairs of gill openings, tail with a large spine, ventral tail fold not reaching to the tip of tail, no dorsal fold, and ventral surface of disc dark purple. Based on such morphological characters, the specimen was identified as P. violacea and confirmed with the nucleotide sequence of the mitochondrial cytochrome c oxidase subunit I gene. We added P. violacea to the Korean fish fauna and propose the new Korean names, "Bo-ra-saek-ga-o-ri-sok" and "Bo-ra-saek-ga-o-ri" for the genus and species, respectively.
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대상 데이터
Measurements followed the method of Wallace (1967) and Ebert (2014). The examined specimen is deposited at the Fish Genetics and Breeding Laboratory of Jeju National University (JNU), Korea.
이론/모형
violacea (USA California, GU440486; Italy, KT307373; Moroco, KT 307370; India, KF899656) deposited at the National Center for Biological Information (NCBI) databases. The genetic distances between them were calculated using the program MEGA 7.0 (Kumar et al., 2016).
성능/효과
Thus, we adopted molecular identification method based on COI DNA sequences to make sure of the accurate species identification. The result indicated that COI sequence of the present specimen was almost identical (99.2~99.8%) to those of P. violacea from NCBI (data not shown). Thus, we identified our specimen to be P.
At the commercial fishing ground for the yellow croaker, a single specimen of unrecorded dasyatid species was caught in the north-western coastal waters of Jejudo Island (off Biyangdo Island) by using drift gill net. The specimen was identified as Pteroplatytrygon violacea, based on the shape of snout and tail, and color of the ventral surface. This species is widely distributed tropical and subtropical areas of the Atlantic, Pacific and Indian Oceans (Mollet, 2002), and it has been found from the surface to a depth of 381 m but usually in the upper layer to 100 m (Mundy, 2005; Antonenko et al.
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