• 한국수산과학회지
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• 제30권3호
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• pp.408-412
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• 1997

황복, Takifugu obscurus의 염색체수는 2n=44로 fundamental number는 64이었으며 암${\cdot}$수간 이형의 성염색체는 나타나지 않았다. 적혈구 세포 및 핵의 장${\cdot}$단축은 각각 $11.01\times7.95\;{\mu}m,\;4.05\times3.15\;{\mu}m$로 나타났다. 이에 따르는 적혈구 세포 및 핵의 표면적 및 부피는 각각 $68.76{\mu}m^2,\;366.00\;{\mu}m^3$과 $10.06{\mu}m^2,\;21.36\;{\mu}m^3$으로 나타났다. 암${\cdot}$수에서 적혈구수는 공통적으로 $12\~13\times10^{15}/m\ell$ 이었다. 2배체 황복 아가미조직은 1개 혹은 2개의 인형성 부위가 존재하였다. 이상의 황복을 대상으로한 연구결과는 황복의 세포분류학적 연구 및 차후 황복의 양식산업화시 도래될 수 있는 염색체공학에 기본자료로 유용할 것이다.

• 환경생물
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• 제39권1호
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• pp.6-15
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• 2021

Various biometric and geometric measures were used to discriminate between the morphologically similar river puffer, Takifugu obscurus, tiger puffer, T. rubripes, their hybrids, and their triploid hybrids. The hybrids and triploid hybrids had greater anal fin width, nostril width, and snout length than the parental species (p<0.05). However, they had less caudal peduncle depth, inter-orbital width, head length, and head width(p<0.05). The morphometric and meristic characteristics of the hybrids and triploid hybrids were either intermediate between the parental species or more similar to those of one parental species. However, the external morphology of the hybrids and triploid hybrids was predominantly maternal. The triploid hybrids had asymmetry in the fin rays and gill raker numbers. This study identified phenotypic characteristics by distinguishing the morphological variables of river puffer, tiger puffer, their hybrids, and their triploid hybrids.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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• pp.538-539
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• 2001

자주복(Takifugu rubripes)은 높은 부가가치의 양식품종인 어류이나 이빨이 날카로워 그물을 절단하거나 서로 깨물어 상처를 입히고, 사육시에 공식현상이 타 어종에 비해 심하기 때문에 치어사육 및 양성시 2∼3회에 걸쳐 이빨을 절단하여 사육하는 양식이 까다로운 종이다. 자주복 양성 중에 스쿠티카섬모충(scuticociliates)의 감염에 대한 피해가 확인되었으며, 최근에 들어 양성중인 다른 해산어류에서도 스쿠티카섬모충의 감염이 대량폐사 원인으로 되어 있어 이들 섬모충에 관한 연구가 절실히 필요한 시점이다. (중략)

• 한국어류학회지
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• 제5권1호
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• pp.41-52
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• 1993

1989년부터 1993년까지 고군산군도의 어류상에 대하여 조사한 결과 12목 50과 81속 102종을 채집하였다. 조사기간 중에 많은 개체가 채집된 종은 밴댕이 Herengula zunasi, 멸치 Engraulis japonica, 민태 Johnius grypotus, 흰베도라치 Pholis fangi, 꽃돛양태 Repomucenus ornatipinnis, 별망둑 Chasmichthys gulosus, 두줄망둑 Tridentiger trigonocephalus과 참서대 Cynoglossus joyneri의 8종이었다. 채집된 12목 어류중에 농어목, 횟대목 그리고 가자미목의 3개 목에 포함된 어류가 약 74%로 대부분을 차지하였고, 과별로는 망둑어과가 12종으로 가장 많은 종이 출현하였다. 채집된 어류중에 흰베도라치 Pholis fangi, 꽃돛양태 Repomucenus ornatipinnis, 참돛양태 Repomucenus koreanus, 황점복 Takifugu flavidus, 황복 Takifugu obscurus 등 5종은 황해에만 출현하는 고유종들이다. 본 조사 지역에서 15개체가 채집된 Sebastes sp.는 Sebastes hubbsi 그리고 Sebastes longispinnis와 유사하지만 등지느러미 기조수, 측선공수, 새파수와 체색에서 한국에 출현하는 Sebastes속 어류 어느 종과도 달라서 분류학적으로 주목되었다.

• 수산해양기술연구
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• 제54권2호
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• pp.138-145
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• 2018

The diet composition of Takifugu niphobles was studied with 587 specimens collected in the eelgrass bed of Jangpyeong-ri, Tongyeong, Korea, using a seine net, monthly from May 2016 to April 2017. The standard length (SL) of the specimens ranged from 0.7 to 9.0 cm. The stomach contents analysis indicated that T. niphobles consumed mainly amphipods (%IRI: 91.0 %). In addition, T. niphobles fed on small quantities of copepods, polychaetes, insects, bivalves and crabs. T. niphobles consumed mainly amphipods over all size class. Smaller individuals (less than 4 cm SL) fed mainly on amphipods and copepods. The proportion of copepods decreased, as body size increased, whereas the consumption of polychaetes increased gradually. The seasonal variation in the diet composition of T. niphobles was significant. Amphipods were most common prey in all seasons. Copepods decreased from summer to spring gradually whereas the consumption of polychaetes increased in autumn.

• 한국어병학회지
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• 제19권2호
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• pp.99-108
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• 2006

Diseased tiger puffer (Takijugu rubripes) showed anorexia and severe anemia in the gills. In wet mount preparations Heterobothrium sp. with 4 sets of clamps on the opisthohaptor attached to the gill filaments of the diseased fish. From the drum-shaped filter for filtration of the culturing water and the sediment of aquarium held the diseased fish in the laboratory, their eggs forming long strings through connection of the bipolar filaments could be easily collected. The parasites with 4 pairs of clamps on the opisthohaptor were 2.38mm in length and 0.71 mm in width, but had no isthmus which was separated the opisthohapor from the body proper. The parasites could be easily distinguished from Heterobothrium tetrodonis and H. okamotoi in the absence of distinct isthmus, and resembled H. yamagutii described from the gills of Takifugu xanthopterus in Japan. Their eggs were yellowish spindle in shape and 180-200 x 5-6 Iffil in size, which were pointed at both ends. The eggs were linked to adjacent egg shells like a string of beads by the filaments. Onchomiracidia, ciliated larvae spawned from the eggs were 133 Iffil (120-146 Iffil) x 751ffil (68-80 Iffil) in size. The length of the ciliates was 12 Iffil in the anterior part of the larvae and 14 Iffil in the posterior part. Round or leaf-shaped young parasites attached on the secondary gill lamellae. There was a tendency that most of round smaller parasites without an opisthohaptor were found in the middle part of the gill lamellae while leaf-shaped larger ones with a opisthohaptor attached on the distal part of the gill filaments. Each clamp of mature parasites grasped one secondary gill filament which resulted in bending of the filaments and hyperplasia of the epithelium and mucous cells. In the branchial cavity around the pseudobranch, mature parasites grasped the adjacent ones by means of the clamps, and the epithelia of the branchial cavity around the parasites showed severe irregular hyperplasia and erosion with strongly PAS-positive mucous cells.

• 한국수산과학회지
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• 제49권4호
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• pp.467-473
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• 2016

Several of our recent studies have focused on mass production of the marine Cladoceran Diaphanosoma celebensis, which can serve as a feed substitute for Artemia nauplii in the culture of larval marine fish. We compared the growth and survival rates of tiger puffer Takifugu rubripes fed D. celebensis with those fed Artemia. The group fed D. celebensis showed an increase in growth from 0.10 g to 1.78 g, while the group fed enriched Artemia had a growth from 0.10 g to 0.92 g. The survival rate of fish fed D. celebensis was 86.7% while that of fish fed enriched Artemia was 51.1%, indicating that the former group was superior to the latter both in growth and survival rate. Fatty acid analysis revealed that D. celebensis fed Nannochloropsis oculata and Schizochytrium sp. had an eicosapentaenoic acid (EPA) content of 16.42% and a docosahexaenoic acid (DHA) content of 3.93%. Meanwhile, juvenile tiger puffer fed D. celebensis had an EPA content of 9.12% and a DHA content of 10.69%. Juvenile tiger puffer fed D. celebensis had a similar n-3 highly unsaturated fatty acid content to that of tiger puffer fed enriched Artemia which had an EPA content of 5.82% and a DHA content of 15.90%, indicating that no additional enrichment was required.

• 한국수산과학회지
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• 제44권3호
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• pp.251-258
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• 2011

To investigate whether the rearing environmental factors (size heterogeneity, rearing density, and feeding frequency) affect the growth and cannibalism of fry in cultured puffer Takifugu obscurus, we conducted three experiments. To examine size effects, we used small (total length [TL] $26.0{\pm}0.5\;mm$, body weight [BW] $0.18{\pm}0.01\;g$), medium (TL $23.1{\pm}0.1\;mm$, BW $0.28{\pm}0.01\;g$), large (TL $26.0{\pm}0.2\;mm$, BW $0.48{\pm}0.01\;g$) and small-large size combination groups. For density, we used size-matched puffers (TL $25.0{\pm}0.5\;mm$, BW $0.53{\pm}0.03\;g$) and five density were examined ranging from 1.43 to 7.14 individuals/L. For the feeding frequency, we also used size-matched fry and feeding frequencies of three times/2 days, one time/day, two times/day, three times/day. We ran each experiment in triplicate and investigated the survival rate, daily food intake (DFI), feed efficiency (FE), and daily growth rate (DGR). The growth of the puffers increased with increasing size, density, and feeding frequency, while cannibalism increased with a greater size gap, density and lower feeding frequency. Therefore, we concluded that size, rearing density, and feeding frequency are major factors influencing growth and cannibalism of the puffer, T. obscurus.

• 생명과학회지
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• 제18권6호
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• pp.782-788
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• 2008

경골어류 4종(조피볼락, 용치놀래기, 송곳니베도라치 및 졸복) 장관의 복합당질 성상의 차이를 밝히기 위해 장을 네 부위로 나누워 아홉 종류의 biotinylated lectin들(DBA, SBA, PNA, BSL- I , RCA- I , sWGA, UEA- I 및 Con A)로 반응시켰다. 조피볼락을 제외하면 부위에 따른 차이는 없었다. 용치놀래기 장 상피는 모든 부위에서 D-glucose/mannose 잔기를 함유하고 있었다. 조피볼락, 송곳니베도라치 및 졸복 장 모든 부위에서는 정도의 차이는 있지만 ${\beta}$-N-acetyl-D-gal-actosamine가 함유되어 있었다. 또한 조피볼락의 근위장, 중간장 및 원위장에는 galactose-${\beta}$-1,3-N-acetyl-D-galactosamine 및 ${\alpha}$-D-galactose도 함유되어 있었으나 직장에는 이들 당 잔기들이 함유되어 있지 않았다. 송곳니베도라치에는 ${\beta}$-N- acetyl-D-galactosamine 외에 ${\beta}$-N-acetyl-D-glucosamine 및 D-glucose/mannose도 발견되었으며, 졸복에서는 Galactose-${\beta}$-1,3-N-acetyl-D-galactosamine, D-galactose 및 D-glucose/mannose도 발견되었다.

• 한국어병학회지
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• 제18권1호
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• pp.99-103
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• 2005

스쿠티카섬모충에 감염된 자주복의 장, 비장, 신장, 정소, 뇌, 연골 그리고 육질부에 충체의 분포를 조사하였다. 실험어는 사조 CS(주)에서 사육중인 자주복 중 스쿠티카섬모충에 감염된 자주복을 이용하였다. 스쿠티카섬모충은 장, 비장, 신장, 정소, 뇌, 연골, 육질부의 기관을 덮는 결합조직에 분포하고 있다. 뇌에 감염되었을 때 막성조직과 시엽피질 사이가 벌어지는 증상이 있었다. 비장에서 hemosiderin이 과다 침적되는 증상을 제외한 다른 내부 조직과 기관에서는 병리적 증상을 볼 수가 없었다.