• Title/Summary/Keyword: 가자미목

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Anatomical Ultrastructure of Spermatozoa of Platichthys stellatus (Pleuronectidae, Pleuronectiformes) from Korea (강도다리(Platichthys stellatus) 정자의 미세해부학적 구조 (가자미목, 가자미과))

  • Kwon, Ae Sook;Kim, Kgu Hwan
    • Korean Journal of Ichthyology
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    • v.26 no.4
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    • pp.274-280
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    • 2014
  • The spermatozoa of Platichthys stellatus is relatively simple cells composed of a spherical head, a short midpiece, and a tail, as in most Pleuronectiformes. The ultrastructure is characterized by the following features: a round nucleus with a deep nuclear fossa, the centriolar complex located at a right angle to each other, a short midpiece, a tail with paired lateral ribbon and no acrosome. However there are some minor morphological differences, including the appearance and number of the mitochondria, the shape and size of the nuclear fossa and the structure of the basal body. Especially the basal body structure consisting of a basal foot, a rootlet and nine alar sheets structures varies considerably in different species. It can be used as indicator of relationships in Pleuronectiformes because minute morphological differences might have functional and evolutionary significance. In conclusion, the spermatozoa of P. stellatus show a certain structural homogeneity and provide support for the concept that ultrastructural features of spermatozoa can be useful in taxonomic studies of Pleuronectiformes.

First Record of Two Sinistral Flounders (Pleuronectiformes) from Korea (한국산 가자미목 어류 2 미기록종)

  • Lee, Chung-Lyul;Lee, Chul-Sang
    • Korean Journal of Ichthyology
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    • v.19 no.4
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    • pp.365-370
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    • 2007
  • Two species, Psettina tosana and Pseudorhombus oculocirris, were collected firstly off the Saryang Island, South Sea of Korea. P. tosana is clearly distinguished from its related species, P. gigantea and P. iijimae, in having 9~10 pectoral fin rays, fewer number of lateral line scales, colorless snout region, and no gill rakers on the upper limb of gill arch. P. oculocirris much differs from P. pentophthalmus in having flattish and free rays of anterior dorsal fin, lots of scales in the lateral line, and tubular anterior nostril with flap on ocular side only.

The description of the Flat fish (Pleuronectiformes) Fossils from the Miocene Duho Formation, Pohang Yeonam-dong in Korea and its Implication (포항시 여남동 마이오세 두호층에서 산출된 가자미목 화석의 기재와 의의)

  • Ko, Ju Yeong
    • Journal of the Korean earth science society
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    • v.37 no.1
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    • pp.1-10
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    • 2016
  • Four entities of the Cenozoic fish fossils were discovered in the Miocene Duho Formation, Pohang, Korea. these fossils were identified as the first Pleuronectiformes in Korea based on the following-the presence of postcleithrum, the elongation of the first proximal pterygiophore of the anal fin ray, almost consistent presence of two proximal pterygiophore of the anal fin rays between the two adjacent hemal spines, the fusion of the first and second hypurals, the fusion of the third and fourth hypurals and the first preural centrum, the presence of well-developed anteriormost plate-like neural spine, the presence of the urohyal like fish-hook and its elongated sciatic part, and the division of the parahypural from the first preural centrum. On the other hand, geological studies about the Duho Formation consistently claimed that shallow-sea creatures were washed away by meteorological events such as a great flood and deposited at the bottom of deep-sea by the turbidity current. However, in Duho Formation, only shallow-sea ones have been discovered thus far. This study reported that Flat fish, deep-sea creature, was discovered in Duho Formation for the first time in Korea.

낙동강 하구역에 분포하는 미성어기의 돌가자미 Kareius bicoloratus(Basilewsky)의 성장

  • 최설화;강용주;전복순
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.10a
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    • pp.233-234
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    • 2000
  • 돌가자미, Kareius bicoloratus (Basilewsky) 는 가자미목 가자미과에 속하는 어류이며, 한국, 일본, 중국 연안에 서식한다 (Chyung, 1977). 본 종에 대해서는 한국에서 초기생활사에 대한 연구와 난 발생에 대한 연구만 되어있다 (Jun et al, 1999; Moon, 1997). 그 외에 외국에서 연령형질, 성장, 성숙과 산란, 난치자어, 자원관리 등에 관하여 많은 연구가 보고되어 있다 (Hatanaka et al. 1952; Kimoto et al. 1991; Masaki et al, 1986; Mori et al, 1986; Uehara and Shimizu, 1996). (중략)

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낙동강 하구역에 분포하는 돌가자미 Kareius bicoloratus(Basilewsky)의 식성

  • 전복순;최설화;강용주
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.10a
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    • pp.235-236
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    • 2000
  • 돌가자미, Kareius bicoloratus(Basilewsky)는 가자미목 (Order Pleuronectiformes) 가자미과(Family Pleuronectidae)에 속하는 어류이며, 한국, 일본, 중국 연안에 서식한다 (Chyung, 1977; Kim et al., 1994). 본 종에 대해서는 국외에서는 연령형질, 성장, 성숙과 산란, 난치자어, 자원관리 등에 관한 많은 연구가 되어 있으나, 국내에서는 Moon (1997)의 초기생활사에 대한 연구와 Jun et al. (1999)의 난 발생에 대한 연구만 되어 있을 뿐이다. (중략)

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Redescriptions of the Three Pleuronectiform Fishes (Samaridae and Soleidae) from Korea (한국산 가자미목 어류 3종의 재기재)

  • Park, Jeong-Ho;Kim, Jin Koo;Choi, Jung Hwa;Chang, Dae Soo
    • Korean Journal of Ichthyology
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    • v.19 no.1
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    • pp.73-80
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    • 2007
  • Three pleuronectiform fishes are redescribed based on specimens from southern sea of Korea. A single specimen (73.4 mm SL) of Samariscus japonicus of the family Samaridae is characterized by having no pectoral fin on blind side and 5 pectoral fin rays on ocular side of body. Twenty specimens (53.6~125.8 mm SL) of Plagiopsetta glossa of the same family are characterized by having 8~10 pectoral fin rays and 6 black ring-shaped blotches on ocular side of body. Three specimens (74.1~83.4 mm SL) of Aseraggodes kaianus of the family Soleidae are characterized by having blackish-brown reticulations on ocular side of body.

Fauna of Fish Collected by Otter Trawl at Coast off the Southeast Area of Geoje Island (저인망에 채집된 거제도 남동지역 해약의 어류상)

  • 윤창호;심재환
    • Korean Journal of Environment and Ecology
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    • v.14 no.3
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    • pp.167-174
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    • 2000
  • 거제도 남동 해안지역의 한려해상국립공원 보호구역에서 해상자원의 보존을 위한 기초자료를 확보하고자 거제도 일운면 예구리, 남부면 다대리 및 남부면 저구리 해얀지역에서 1999년 6월부터 2000년 3월까지 어류상 조사를 실시하였다. 조사를 통하여 확인된 어류는 총 16목 47목 69속 85 종 2, 789개체가 채집되었으며, 45종이 출현한 농어목(Perciformes), 10종씩 출현한 가자미목 (Pleuronectiformes) 및 횟대목(Scorpaseniformes)의대부분 저서생활을 하는 어류가 주로 채집되었다. 전체 조사기간 동안 가장 만하은 개체가수가 채집된 어류를 줄비늘치(Coelorhyncus multispinulosus) 458개체(16.4%)로 확인되었고 칠서대(Cynoglossus interruptus) 384개채(13.8%), 노랑촉수(Upeneus bensasi) 285개체(10.2%) 등의 순 이었다. 조사시간 6월에 가장 다양하고 풍부한 어류가 채집되었다.

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LHRHa 펠렛의 근육삽입에 의한 강도다리, Platichthys stellatus 정액의 증산 효과

  • 문승현;장영진;임한규;이종하
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.231-232
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    • 2000
  • 강도다리(Platichthys stellatus)는 분류학적으로 가자미목 강도다리속에 속하는 어류로서 우리나라 북부연안, 일본, 태평양 일대에 광범위하게 분포하며, 산란을 위해 강하류까지 거슬러 올라가는 연안정착성 어류이다. 최근 하천 및 연안의 오염으로 인하여 강도다리의 어획량이 감소하고 있어, 양식기술 개발을 위한 인위적인 어미의 성숙촉진 및 종묘생산에 대한 관심이 높아지고 있다. 그러나 넙치류와는 달리 수컷 어미의 정액량이 적어 종묘생산시 어려움을 겪고 있는 실정이다. 암컷에 비해 수컷의 정액량이 적어 종묘생산이 어려운 어종인 뱀장어(Ohta et al., 1996)와 감성돔(Lau et al., 1996)에서는 호르몬을 투여하여 정액량을 증산시켰다는 보고가 있다. (중략)

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The Fish Fauna and their Characteristics of Sohuksando Island, Korea (소흑산도(小黑山島) 일대(一帶)에 서식(棲息)하는 어족(魚族) 자원(資源)과 그 특성(特性))

  • Lee, Chung-Lyul;Joo, Dong-Soo
    • Korean Journal of Ichthyology
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    • v.8 no.1
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    • pp.64-73
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    • 1996
  • To determine the fish fauna and their characteristics of the Sohuksando Island located in the South - Western Sea of Korea, samples were collected from June 1993 to August 1995. 128 species belonging to 59 families and 97 genera were identified. Among them the order Perciformes were about 42.2% of total species, as 54 species belonging to 27 families and 44 genera, and order Scorpaeniformes, 19.5%, as 25 species belonging to 8 families and 15 genera. Besides of these groups, order Pleuronectiformes were about 12.5%, as 16 species belonging to 5 families and 13 genera, and order Tetraodontiformes, 6.3%, as 8 species belonging to 3 families and 4 genera. Cypselurus unicolor, Siganus canaliculutus and Tarphops elegans from Sohuksando Island are reported here as first record species from Korea. The unidentified species were Raja sp., Scorpaenopsis sp., Sebastes sp., Entomacrodus sp. and Psettodes sp.. The economic fishes of this area were Raja kenojei, Sebastes schlegeli, Sebastes thompsoni, Lateolabrax japonicus, Nibea albiflora, Argyrosomus argentatus, Pseudosciaena poliactis, Miichthys miiuy, Mugil cephalus, Paralichthys olivaceus, Cynoglossus joyneri and Cynoglossus semilaevis.

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