• 제목/요약/키워드: Calanoida

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Centropages dorsispinatus (Copepoda, Calanoida)의 두부에 있는 갈고리 형태의 돌기에 대하여 (A Hook-shaped Process on the Cephalosome of Centropages dorsispinatus (Copepoda, Calanoida))

  • 강영실;이삼근
    • 한국해양학회지
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    • 제27권3호
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    • pp.247-249
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    • 1992
  • Centropages dorsispinatus의 암컷 두부에 있는 갈고리 형태의 돌기를 전자 현미 경으로 관찰하였다. 돌기의 앞에는 한 개의 섬모를 가진 감각공(感覺孔)이 두 줄로 나 열되어 있으며, 돌기의 끝부분은 벌어져 있다.

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여수 연안에 출현하는 멸치(Engraulis japonicus) 후기자어 및 치어의 소화관 내용물 조성 (Gut Composition of Postlarval and Juvenile Anchovy Engraulis japonicus in the Coastal Waters of Yeosu, Korea)

  • 유준택;정재묵
    • 한국수산과학회지
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    • 제49권5호
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    • pp.642-647
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    • 2016
  • Postlarval and juvenile anchovies Engraulis japonicus were collected using a gape net with wings in the coastal waters of Yeosu in July and August 2015, and their gut contents were analyzed. The size range of the postlarvae was 11.0-24.2 mm (notochord length) and that of the juveniles was 25.1-37.4 mm (standard length). Guts were empty in 64.5% of postlarvae and in 51.7% of juveniles. The dominant prey organisms in the guts of both postlarvae and juveniles were copepoda. Calanoida were important prey organisms for postlarvae and were dominated by nauplii of Paracalanus sp. and Calanus sp. as well as unidentified copepod naupill. Calanoida were also important in the diets of juveniles, whose gut contents were dominated by Paracalanus sp. and Cirripedia. Gut compositions were significantly different (P<0.05) among three body size levels in postlarvae and juveniles. As the body size of the postlarvae and juveniles increased, Calanoida constituted a larger proportion of the gut contents, while the proportion of copepod nauplii decreased.

한국 염수산 칼라누스 목 (갑각류;요각류)의 분류학적 연구 (The Freshwater Calanoida (Crustacea ; Copedpoda) of Korea)

  • 장천영;김훈수
    • Animal Systematics, Evolution and Diversity
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    • 제2권1호
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    • pp.49-62
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    • 1986
  • 한국 담수산 요각류 중 칼라누스 목에 속하는 것들의 종류상을 밝히기 위하여 1983년 5월부터 1984년 10월까지 20개 지점의 강, 호수, 연못, 웅덩이, 논 등의 다양한 담수역에서 채집한 표본들과, 이어 앞서 1979년 5월부터 1983년 7월까지 6개 지점에서 채집되어 강릉대학 생물학과에 보관중이던 표본들의 형태적 형질들을 비교 관찰하여 모두 3과 8종을 동정하였다. 이 중 Sinocalanus sinensis, Tropodiaptomus oryzanus, Sinodiaptomus sarsi, Neodiaptomus schmackeri 등 4종은 한국 미기록종인 바 이들에 대하여 기재하였고 아울러 8종에 대한 도판을 작성하였다.

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Phylogenetic Relationships of the Family Metridinidae (Copepoda: Calanoida)

  • Soh Ho Young;Ohtsuka Susumu;Suh Hae-Lip
    • Fisheries and Aquatic Sciences
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    • 제2권2호
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    • pp.122-128
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    • 1999
  • Several differences are revealed in the segmentation and setation of the antennule, maxillule, maxilliped and fifth legs between three genera of the family Metridinidae, Metridia, Pleuromamma, and Gaussia. The phylogenetic relationships are cladistically analyzed on the basis of 10 morphological characters. The cladogram shows that Gaussia and Pleuromamma form a sister group, with Metridia which is the first branch to diverge within the family. The presence Of quadritheks on the male antennules of Metridia and Pleuromamma seems to be an important synapomorphy. The loss of quadritheks in Gaussia represents likely evidence of a character reversal into the ancestral condition.

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Redescription of Haloptilus caribbeanensis (Copepoda: Calanoida) from the Pacific, with Remarks on the Morphology of Antennules in the Genus Haloptilus

  • Soh Ho Young;Suh Hae-Lip;Ohtsuka Susumu
    • Fisheries and Aquatic Sciences
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    • 제2권2호
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    • pp.129-134
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    • 1999
  • Haloptilus caribbeanensis Park, 1970 (Copepoda, Calanoida, Augaptilidae) is redescribed in detail on the basis of an adult female collected from Suruga Bay, Japan. This is the first record of the species from the Indo-Pacific region. Morphology of the Pacific specimen agrees well with that of the Caribbean Sea and Gulf of Mexico specimens, except for the numbers of mandibular teeth. The former has five teeth and the latter six teeth on mandible. The segmentation and segmental aesthetasc numbers of female antennules of H. caribbeanensis are compared with those of five species of Haloptilus (H. angusticeps, H. fons, H. longicomis, H. ornatus and H. spiniceps). These characters show morphological differentiation at the species level. H. caribbeanensis has no aesthetasc on the proximal segments II, IV, and VI of the female antennules.

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Three Aetideid Species of Copepods (Copepoda: Calanoida: Aetideidae) from East Sea of Korea

  • Lim, Byung-Jin;Song, Sung-Joon;Min, Gi-Sik
    • Animal Systematics, Evolution and Diversity
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    • 제27권1호
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    • pp.35-46
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    • 2011
  • Three aetideid copepods collected from the East Sea of Korea are described: Bradyidius angustus (Tanaka, 1957), Gaetanus minutus (Sars, 1907), and Aetideus acutus Farran, 1929. The former two species are new to the Korean copepod fauna. The sequences of cytochrome c oxidase subunit 1 were determined to be the molecular characteristics of these three species.