• 제목/요약/키워드: Pisces

검색결과 424건 처리시간 0.022초

Osteological Development of the Larvae and Juvenile of Luciogobius grandis (Pisces: Gobiidae)

  • Yun, Seong-Min;Park, Jae-Min;Han, Kyeong-Ho
    • 한국발생생물학회지:발생과생식
    • /
    • 제24권2호
    • /
    • pp.125-133
    • /
    • 2020
  • This study is intended to be used as the basic material for the taxonomic research by observing the stages of skeletal development of Luciogobius grandis larvae compared to the skeletal development patterns of the same fish family of Gobiidae. 3 days after hatching (DAH), the preflexion larvae was 4.01±0.11 mm (n=5) in average total length (TL) and the frontal began to ossify in the skull. 17 DAH, the advanced postflexion larvae was 5.37±0.05 mm (n=5) in average TL the supraoccipital and epiotic were ossified in the cranial bone. 36 DAH, the juvenile was 12.2±0.20 mm (n=5) in average TL and the urohyal was ossified in the hyoid arch. In addition to one hypural bone being ossified, the first, second, third and fourth were combined and were made three bone fragments and then, the bone ossification of all skeletons was completed.

New Korean Record of Setarches longimanus (PISCES: Scorpaenidae)

  • Shin, Ui Cheol;Kim, Jin-Koo;Joo, Dong-Soo
    • Fisheries and Aquatic Sciences
    • /
    • 제19권2호
    • /
    • pp.10.1-10.5
    • /
    • 2016
  • Setarches longimanus (Alcock 1894), in the family Scorpaenidae, was collected from Busan and the coastal waters of Jeju Island, Korea, in January and November 2014, respectively. Two specimens are characterized by XI, 10 dorsalfin rays; 19-21 pectoralfin rays; III, 5 anal fin rays; a second preopercular spine much shorter than the first and third; and an interorbital width 11.3 %-11.6 % of the standard length. We also analyzed 587 base pairs of the mitochondrial DNA cytochrome c oxidase subunit I sequences in order to confirm the taxonomic status of the specimen. As a result, the sequences of our specimen almost corresponded to those of Chinese S. longimanus (genetic distance, d = 0.005), but considerably differed from those of S. guentheri (d = 0.120-0.124). We propose the new Korean names "Ma-su-gam-peng-sok" for the genus Setarches, and "Bul-geun-ma-su-gam-peng" for the species S. longimanus.

First Record of the Eyeshade Sculpin Nautichthys pribilovius (Hemitripteridae: Pisces) from the East Sea, Korea

  • Lee, Soo Jeong;Jung, Yeon-Soo;Kweon, Seon-Man;Kim, Jin-Koo
    • Fisheries and Aquatic Sciences
    • /
    • 제16권3호
    • /
    • pp.207-209
    • /
    • 2013
  • A new record of the eyeshade sculpin Nautichthys pribilovius is described on the basis of a single specimen collected from the East Sea, Korea. The species has 23 second dorsal fin rays, rounded spines on the occiput, a black band through the eye and across the cheek, branched caudal fin rays and a branchiostegal membrane attached to the isthmus. The new Korean name "Gum-eun-tti-nun-hoet-dae-sok" is proposed for the genus Nautichthys, and "Gum-eun-tti-nun-hoet-dae" is proposed for the species N. pribilovius.

Testicular Development of the Male Lungfish, Protopterus annectens (OWEN) (Pisces: Sarcopterygii) in the Flood Plains of River Niger in Udaba-Ekperi in Nigeria

  • Onyedineke, N.-E.;Otuogbai, T.-O.-S.;Elakhame, L.-A.;Ofoni, C.
    • 한국양식학회지
    • /
    • 제14권2호
    • /
    • pp.73-79
    • /
    • 2001
  • Testicular development of the male African lungfish, Protopterus annectens (Owen) was investigated histologically. The testis was found to be an elongated structure that possessed two distinct portions: an anterior spermatogenic part that was made up of a system of testicular tubules and a posterior vesicular part that invaded the kidney tissue. Spermatogenesis can be divided into five stages; primary spermatogonia, secondary spermatogonia, spermatocyte, spermatids and spermatozoa. Based on the gonadosomatic index (GSI) and histological changes observed, the reproductive cycle can be divided onto four distinct stages: resting and quiescent (December to February), growing (March to June) ripe and spent (July to August) and postspawning (September to November). The GSI was the maximum on July when reproductive cells were mature, ripe and ready for spawning; and the minimum in August after fish spawned.

  • PDF

한국산 Cobits속 어류(Pisces: Cobitidae)의 계통분류학적 연구 111. 새코미꾸리 (Cobitis rotundicaudata)의 지리적변이 (Systematic Studies of the genus cobitis in Korea III. geographic Variations of Cobitis rotundicaudata)

  • 박병상;양서영
    • 한국동물학회지
    • /
    • 제35권4호
    • /
    • pp.497-504
    • /
    • 1992
  • 한국특산종인 Colitis rotundicuudutu의 지리적 변이를 전국 5개 집단 132개체를 대상으로 조사하였다. 4개 집단의 계측형질로 본 다변량분석 결괴 산청집단은 타 집단과 형태적 차이가 있었다 전기영동으로 조사된 5개 집단의 평균 유전적 변이 정도는 A=1.48, P=37. IpA, HD=0. 139, 및 H6=0. 124로 변이 정도가 타 어류에 비하여 비교적 높았다. 5개 집단의 평균 유전적 근인치(S)는 0.83으로 낮았으나 산청집단을 제외한 4개 집단의 근연치는 0. 91로 매우 가까웠다. 반면 산청집단은 나머지 집단과 형태적으로나 유전적으로 유의한 차이가 나타나는 것으로 보아 산청집단의 별종 가능성이 매우 높음을 시사한다. 앞으로 보다 면밀한 연구로 산청집단의 별종 여부를 명백히 구명하여야 할 것이다.

  • PDF

한국산 기름종개속 어류의 난모세포의 부착막 (Adhesive Membrane of Oocyte in Korean Cobitid Species (Pisces, Cobitidae))

  • 김익수;박종영
    • 한국동물학회지
    • /
    • 제38권2호
    • /
    • pp.212-219
    • /
    • 1995
  • Through the histolosical observation of ovary in the nine species of the genus Cobitis, we found that specific adhesive membranes were attached to the outer zone radials during the vitellosenesis. These adhesive membranes could be classified into four forms as follows: 1) granular form of Colitis lutheri, C. striate, and C. sinensis, 2) villous form of C. longicorpus, C. konensis koreensis, C. k. pumilus, and C. granoei, 3) saw-like form of C. rotundicaudata, and 4) filamentous form of C. chou. The various forms of adhesive membrane of egg in the cobitid fishes are showed a species specificitv with reference to their habitats and spawning property.

  • PDF

First Record of the Black Snoek Thyrsitoides marleyi (Pisces: Gempylidae) from Korea

  • Kim, Maeng Jin;Choi, Jung Hwa;Kim, Jung Nyun;Oh, Taeg Yun;Lee, Dong Woo
    • Fisheries and Aquatic Sciences
    • /
    • 제15권3호
    • /
    • pp.251-253
    • /
    • 2012
  • A single specimen of Thyrsitoides marleyi (818 mm in standard length), belonging to the family Gempylidae, was collected for the first time in Korea from the coastal waters off Busan, Korea using longline with hooks on 27 January 2012. This species is characterized by the following morphological traits: palate with three fangs, dark dorsal spine membrane, ending part of soft dorsal and anal fin rays finlet-like, and tip of the jaw with a cartilaginous process. We suggest a new Korean name "Gal-chi-ggo-chi" for T. marleyi.

New Record of Sebastes nudus and Redescription of Sebastes pachycephalus (Pisces: Scorpaenidae) from Korea

  • Yu, Hyo Jae;Kim, Jin-Koo
    • Fisheries and Aquatic Sciences
    • /
    • 제17권1호
    • /
    • pp.129-136
    • /
    • 2014
  • Using the criteria of previous study, we analyzed the morphological characters of 66 specimens of the Sebastes pachycephalus complex collected from Korea between 2008 and 2013. As a result, the 37 specimens were identified as Sebastes nudus, and the remaining specimens as Sebastes pachycephalus. Sebastes nudus is characterized by the absence of scales below the base of the dorsal fin spines; the absence of dark spots on the dorsal, anal, and caudal fins; and the presence of distinct yellow or brownish-red markings on the dorsum (when fresh). The most similar species S. pachycephalus differs from S. nudus in having minute scales below the base of the dorsal fin spines. We propose the new Korean name "Hwang-jeom-gae-bol-rak" for S. nudus, and redescribe S. pachycephalus.

오륙도 주변해역 해양생물의 종조성과 계절변동 (Seasonal Variation of Species Composition in Marine Organisms at Oryukdo in the Southeastern waters off Korea)

  • 김정윤;김정년;최정화
    • 수산해양교육연구
    • /
    • 제24권6호
    • /
    • pp.781-792
    • /
    • 2012
  • Seasonal variation of species composition in marine organisms around Oryukdo of Busan was investigated using a gill net between 2009 and 2011. A total of 82 species, 52 families, and 6 taxa were collected during the sampling periods. Species were included two species in Cnidaria, one in Urochordata, 12 in Mollusca, 12 in Crustacea, seven in Echinodermata, and 48 in Pisces. The dominant species were Crepidula onyx, Asterina pectinifera, Ceratostoma burnetti, Asterias amurensis, Anthocidaris crassispina, and Trachurus japonicus. These six species accounted for 48.4% in the total number. Diversity indices were highest in spring 2009 (2.77) and lowest in spring 2011 (1.66). Seasonal variation of species composition and abundance in marine organisms corresponded with the water temperature.

한국산 표문쥐치속 (양쥐돔과) 어류 1 미기록종과 검색표 (First Record of the Unicornfishes, Naso lituratus (Pisces: Acanthuridae) from Korea)

  • 이완옥;김익수;김병직
    • 한국어류학회지
    • /
    • 제12권2호
    • /
    • pp.96-100
    • /
    • 2000
  • 한국산 양쥐돔과 어류 중에 지금까지 우리나라에 기록된 적이 없는 Naso lituratus (Schneider) 1개체 (체장 215.2 mm)를 제주도 서귀포 앞 바다에서 정치망으로 채집하였다. 본 종의 국명은 "제주표문쥐치"라 하였으며, 계수 계측형질을 기재하고, 아울러 표문쥐치속 어류 3종의 검색표를 함께 제시하였다.

  • PDF