• Title/Summary/Keyword: Dictyosoma burgeri

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그물베도라치 Dictyosoma burgeri의 생식주기

  • 진영석;나오수;이영돈;백혜자;김형배
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.343-344
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    • 2003
  • 그물베도라치 Dictyosoma burgeri는 농어목 황줄베도라치과 그물베도라치속에 속하는 어류로서 우리 나라와 일본 연안의 암초지대와 조간대 상부 조수 웅덩이에 분포하는 정착성 어종이다. 몸에는 옆줄과 수직방향으로 직선이 그어져 있고 세로줄의 점액공이 있어 옆구리는 그물 모양을 나타낸다(정, 1977). 그물베도라치는 암컷이 약 2.1 mm의 덩어리진 침성점착란을 산란하고, 수정 후에는 수컷이 몸으로 난괴를 감싸 부화할 때까지 보호한다(단원 과 도진, 1972). (중략)

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Age and Growth of Dictyosoma burgeri(VAN DER HOEVEN) (그물베도라치(Dictyosoma burgeri)의 연령과 성장)

  • Kang, Yong-Joo;Kim, Yeong-Hye;Kim, Won-Tae
    • Korean Journal of Ichthyology
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    • v.7 no.2
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    • pp.171-176
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    • 1995
  • Age and growth of Dictyosoma burgeri, sampled in the costal waters off Sanyang, Tongyeong, Ky$\breve{o}$ngnam during December 1992∼November 1993, were studied by otolith reading. Examination of outer margins of the otolith showed that the opaque zone as annulus was formed once a year with being mainly configured in November. Spawning period was estimated from January to March, with a peak in Feburary. Growth of the fish was expressed by the von Bertalanffy's equation as $L_t=23.5977(1-e^{-0.2542(t+2.1302)})$, $W_t=64.5892(1-e^{-0.2542(t+2.1302)})^{2.3002}$, where $L_t$ is total length in ㎝, $W_t$ is total weight in g and t is age.

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Reproductive Cycle of Ribbed Gunnel Dictyosoma burgeri (그물베도라치 Dictyosoma burgeri의 생식주기)

  • Jin, Young Seok;Han, Jae Il;Park, Chang Beom;Lee, Chi Hoon;Kim, Byung Ho;Baek, Hea Ja;Kim, Hyung Bae;Lee, Young-Don
    • Korean Journal of Ichthyology
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    • v.19 no.1
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    • pp.8-15
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    • 2007
  • The morphology of gonad and reproductive cycle of ribbed gunnel (Dictyosoma burgeri) were investigated on the basis of histological observation. The specimens were monthly sampled in the coastal waters of Jeju from November 2001 to February 2003. The ovaries and testis of this species are categorized as cystovarian and lobule type, respectively. The gonadosomatic index (GSI) of female increased in November and maintained high values from December to February. The GSI of male was similar to that of female although it was decreased in February. The reproductive cycle can be grouped into the following successive stage in the ovary: growth (October to November), mature (November to February), spawning (January to February), and degenerating and recovery (March to September). And in the testis, the stage observed were: multiplication (August to November), growth (November to January), mature and spawning (November to February), and degenerating and recovery (January to September). The minimum maturation size of D. burgeri was over 15.0 cm and fecundity ranged from 2,194 to 6,581 eggs. The relationship between the fecundity and fish body was calculated in the fecundity (F) equation as: $F=0.4057TL^{3.1425}$ ($R^2=0.7621$) for total length (TL); $F=149.88BW^{0.9579}$ ($R^2=0.7982$) for body weight (BW), respectively. The fecundity was correlated positively with TL and BW. The histological observations of the gonads suggested that major spawning of this species probably occurs between January to February, when low water temperature ($13{\pm}0.3^{\circ}C$) period.

Spawning Behavior and Morphological Development of the Eggs and Larvae of the Blennioid Fish, Dictyosoma burgeri from Korea (Pisces: Stichaeidae) (한국산 그물베도라치(Dictyosoma burgeri)의 산란행동 유도 및 난 발생과 자어의 형태발달)

  • Park, Jae Min;Han, Kyeong Ho;Kim, Na Ri;Hong, Chang Gi;Park, Jong Youn;Cho, Jae Kwon
    • Korean Journal of Ichthyology
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    • v.26 no.2
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    • pp.112-117
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    • 2014
  • The spawning behavior, development of eggs and larvae of the blennioid fish, Dictyosoma burgeri were investigated. The blennioid fish were caught at Hwayang-myeon, Yeosu-si, Jeollanam-do from December 2013. The egg was spherical, measuring from 1.31 to 1.47 mm in diameter. The incubation period of the egg extended from 744 hrs at the temperature varying between 14.5 and $16.5^{\circ}C$. The newly hatched larvae were 7.10~7.60 mm(mean $7.34{\pm}0.18mm$) in total length. Two days after hatching, prelarvae was measured 8.43~8.47 mm (mean $8.45{\pm}0.01mm$) in total length. They began to eat rotifer and transformed to postlarvae stage. Six days after hatching, postlarvae was measured 9.06~9.13 mm(mean $9.10{\pm}0.02mm$) in total length.

Effects of Nonylphenol and 2,2',4,6,6'-Pentachlorobiphenyl on In Vitro Steroidogenesis in Maturing Oocytes of Ribbed Gunnel, Dictyosoma burgeri (그물베도라치, Dictyosoma burgeri의 성숙기 난모세포 스테로이드 대사에 미치는 Nonylphenol과 2,2',4,6,6'-Pentachlorobiphenyl의 효과)

  • Hwang, In-Joon;Baek, Hea-Ja
    • Development and Reproduction
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    • v.14 no.2
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    • pp.115-121
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    • 2010
  • The in vitro effects of nonylphenol (NP) and 2,2',4,6,6'-pentachlorobiphenyl (PCB104) on ovarian steroidogenesis of the ribbed gunnel, Dictyosoma burgeri were investigated. Oocytes taken during maturation stage were incubated with 100 ng/$m{\ell}$ of NP and PCB104 in the presence of exogenous precursor, $[^3H]-17{\alpha}$-hydroxyprogesterone ($[^3H]-17{\alpha}OHP$). Steroids were extracted from the media and the isolated oocytes, and the extracts were separated and identified by thin layer chromatography. The identities of the major metabolites were testosterone (T) and estradiol-$17{\beta}$ (E2). NP treatment inhibited production of E2 metabolite in the oocytes of 1.2, 1.3 and 1.4 mm although NP inhibited production of T metabolite at the oocytes of 1.1, 1.3 and 1.4 mm. PCB104 treatment inhibited production of T metabolite in the oocytes of all groups and E2 metabolite in the oocytes of 1.2, 1.3 and 1.4 mm. In conclusion, these results suggested that NP and PCB104 had an inhibitory effects on conversion of $[^3H]-17{\alpha}OHP$ to T and E2 during the oocyte maturation process of ribbed gunnel.

Changes in Plasma Sex Steroid and Cortisol Levels during Annual Reproductive Cycle of Ribbed Gunnel, Dictyosoma burgeri

  • Hwang, In Joon;Kim, Sung Yeon;Kim, Hyung Bae;Baek, Hea Ja
    • Development and Reproduction
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    • v.16 no.4
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    • pp.279-287
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    • 2012
  • We investigated the changes in plasma sex steroid hormones, testosterone (T), estradiol-$17{\beta}$ ($E_2$), 17,$20{\beta}$-dihydroxy-4-pregnen-3-one ($17{\alpha}20{\beta}P$), 11-ketotestosterone (11KT) and cortisol levels from ribbed gunnel, Dictyosoma burgeri in associated with annual reproductive cycle. The gonadosomatic index (GSI) of females increased from November, peaked in February and decreased rapidly from March. The GSI of males also increased from November, peaked in January and then decreased gradually. In females, $E_2$ levels increased and remained high from December to February. The levels of T showed a similar tendency and correlated ($r_s$=0.898, p<0.01) with $E_2$ levels. The levels of $17{\alpha}20{\beta}P$ increased rapidly in February ($4.78{\pm}1.01ng/ml$) and peaked in July ($5.08{\pm}0.65ng/ml$). Cortisol level was peaked in March and correlated with $17{\alpha}20{\beta}P$ levels ($r_s$=0.696, p<0.01). In males, the levels of T was peaked in January and then decreased rapidly. The levels of 11KT were remained high from October to January. On the other hand, the levels of $17{\alpha}20{\beta}P$ fluctuated during reproductive cycle. These results suggest that plasma sex steroids in ribbed gunnels have annual periodicity, and that cortisol may involve in maturation of females.

Species Composition and Seasonal Variation of Fish Assemblage in the Coastal Water off Gadeok-do, Korea -3. Fishes Collected by Crab Pots- (가덕도 주변 해역 어류의 종조성과 계절 변동 -3. 꽃게통발에 의해 채집된 어류-)

  • An Yong Rock;Huh Sung Hoi
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.35 no.6
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    • pp.715-722
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    • 2002
  • The monthly collected fish samples by crab pots were analyzed in order to study the species composition and seasonal variation of fish assemblage in the coastal water off Gadeok-do, Korea in 1998, During the study period, 49 species of fishes representing 26 families were collected, The dominant species were Conger myriaster, Sebastes inermis, Hexagrammos otakii, H. agrammus, Stephanolepis cirrhifer and Acanthogobius flavimanus. These 6 dominant species accounted for $67.1\%$ and $69.4\%$ in the number of individuals and biomass, respectively. The secondary importance species were Thamnaconus modestus, Takifugu niphobles, Rudarius ercodes, Dictyosoma burgeri, Sebastes longispinis and Epinephelus septemfasciatus. The highest number of species was collected in November, and the number of individuals and biomass were highest in March. But the lowest numbers of species and individuals were collected in July and the lowest biomass in September, Although the species diversity indices varied little monthly, the lowest value was recorded in August because of small number of species and predominance of 5. cirrhifer and T. modestus.

Taxonomic Revision of the Suborders Blennioidei and Zoarcoidei (Pisces, Perciformes) from Korea (한국산 베도라치아목과 등가시치아목(농어목) 어류의 분류학적 재검토)

  • 김수익;강언종
    • The Korean Journal of Zoology
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    • v.34 no.4
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    • pp.500-525
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    • 1991
  • 1986년부터 1991년까지 우리나라 연안에서 채집된 베도라치아목 Blennioidei과 등가시치아목 Zoareoidei의 어류 표본을 대상으로 분류학적으로 재검토하였다. 베도라치아목 어류는 먹베도라치과 Tripterygiidae의 가막베도라치 Enneoptewgius etheostomus(Jordan et Snyder) , 비늘 베도라친과 Labrisomidae의 비늘베도라치 감eoclinus bwope(4ordan et Snyder) , 그리고 청 베도라치과 B1enniidae의 청베도라치 Pictiblennius yotobei(Jordan et Snyder), 저울베도라치Entomacrodus stellifer lighti(Herre), 대강베도라치 Istibfennius enosimae(Jordan et Snyder), 앞동갈베도라치 Omobranchus elrgons(Steindachner), 골베도라치 O. punctatus (Valenciennes) 및 두줄베도라치 Petroscines breuiceps(Valenciennes)의 7속 8종으로 분류되었다. 이 가운데 N. bwope의 표본은 우리나라에서는 본 조사기간 중 제주도 연안에서 처음으로 확인되어 한국 미기록종으로 보고한다. 한편 등가시치아목의 어류는 등가시치란 Zoarcidae의 벌레문치 Lycodes tanakoi Jordan et Thompson, 먹갈치 Lycodes nakamurai Tanaka, 등가시치 Zoarces gilrii Jordan et Starts, 실베도라치 Zoarchias aculeatus( Basilewsky), 우베도라치 Zoarchias uchidai Matsubara, 민베도라치 Zoarchias glaber Tanaka, 얼룩가시치 Neozoarces pulcher Steindachner, 칠성갈치 Petroschmidtia toyamensis Katayama, 자갈치 Gvmnelopsis brashnikoui Soldatov, 문자갈치 Dauidijordania poecilimon(Jordan et Fowler) 및 청자갈치 Allolepis hollandi Jordan et Hubbs, 장갱이란 Stichaeidae의 세줄베도라치 식nogrammus hewagrammus(Temminck et Schlegel), 장갱이 Stichaeus grigorjemi Her\ulcornerenstein, 왜도라치 Chri'olophis wui(Wang et Wang ) , 괴도라치 Chirolophis joponicus(Jordan et snyder) , 벼슬베도라치 각ectrias benjamini Jordan et Snyder, 가시베도라치 Lumpenella nigricons Matsubara, 육점날개 Ophistocentws zonope jordan et Snyder, 그물베도라치 Dictyosoma burgeri Van der Hoeven 및 황점 베도라치Dictyosoma wbrimaculata Yatsu, Yasuda et Taki, 그리고 황줄베도라치란 Pholididae의 황줄베도라치 Phoris taczanowskii(Steindachner), 오색베도라치 Phoris omotus (Girad), 베도라치 Pholis nebuloso(Temminck et Schlegel), 횐베도라치 Pholisfangi(Wang et Wang) 및 점베도라치 Pholis crossispino(Temminck et Schlegel)의 17속 25종이 분류되었다. 이중에서 Zoarchias glaber, Chirofophis oui, Alectrias benjamini, Dictyosoma mbrimaculamia 및 Pholis crassispina의 5종은 한국 미기록종으로 보고한다. 아울러 이들 미기록종을 포함한 한국산 베도라치아목과 등가시치아목 어류의 속 .종 검색선 와 종별 사진을 제시하고, 이들 표본을 근거로 하여 형태적 특징, 계수계측치, 채집지 및 서식처를 기록하였으며, 이들의 분류학적 위치에 대해 논의하였다. 우리나라에 출현하는 베도라치아권의 어류는 거의 대부분이 제주도 연안과 서남해 연안에 제한분포하는데, 등가시치아목의 어류는 주로 동해연안에서 많은 종이 출현하고 있어서 동물지리학적으로 주목된 다.

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Species Composition and Vertical Distribution Pattern of Fish in Rock Tidal Pools at Mohang, Taeanhaean National Park (태안해안국립공원 모항 암반조간대 웅덩이의 어류 종조성과 수직분포)

  • Choi, Youn;Lee, Heung-Heon
    • Korean Journal of Ichthyology
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    • v.25 no.4
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    • pp.227-233
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    • 2013
  • Speceis composition and distribution by altitude of fish in the rock tide pools in Taean were determined using montly samples collected in the 9 tide pools from January to December 2010. Among 16 species collected, a forktongue goby Chaenogobius annularis was dominant accounting for 34.6% in the total number of individuals, and followed by Dictysoma burgeri (22.0%), Sebastes schlegelii (6.9%) and Tridentiger trigonocephalus (6.8%). A resident fish Dictyosoma burger occurred at all tide pools, and Chasmichthys dolichognathus was dominant in the upper tide pools and was collected throughout the study period. The resident fish is more abundant than the transient fish and occasional fish accounted for 61.4%, 14.2% and 24.4% in biomass, respectively.

The Comparison of Efficacy of Glutathione S-transeferase Placental Form Positive and Iron-Resistant Lesions in the Detection of Hepatocarcinogens (간발암성 물질 검색에 있어서 Glutathione S-transeferase Placental Form 양성 병소와 철 저항 병소의 유효성 비교 연구)

  • 강경선;김형진;이영순
    • Journal of Food Hygiene and Safety
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    • v.6 no.1
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    • pp.1-12
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    • 1991
  • Fischer 344 rats aged six weeks were diYided into four groups and group 1, 2, and 3 of rats were given an intraperitoneal injection of diethylnitrosamine at 200 mg/kg body weight and group 4 was given saline alone. Two weeks after beginning of the experiment, group 1 and 2 of rats were begun to feed on diets containing 0.02% 2-acetylaminofluorene as a promoter for four weeks. Three weeks after beginning of the experiment, all groups were performed partial hepatectomy. During the last two weeks, group 1 and 3 of rats were received subcutaneously 3 consecutive weekly doses of iron dextran at 0.125 ml/100 g body weight. Subcutaneous injection of iron dextran resulted in hepatic siderosis in group 1 and 3 of rats. Pre neoplastic nodules were identified histopathologically by two markers, resistance to exogenous iron accumulation and glutathione S-transeferase placental form (GST-P) activity, while early carcinogen induced foci were hardly resistant to iron accumulation and though a few lesions were identified, it could hardly be distincted from normal hepatocytes of surroundings. However, GST-P positive nodules as well as foci were clearly distincted from normal hepatic cells of surroundings. In the quantitative analysis of carcinogen-induced nodules and foci, more lesions were detected by immunohistochemical method for GST-P than by prussian blue staining for resistant to iron accumulation. It is concluded that immunohistochemical marker for GST-P is more sensitive and reliable than iron-resistance marker, and that iron-resistance is not useful marker for early detection of carcinogen-induced hepatic lesions.

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