• Journal of the Korean Society of Food Science and Nutrition
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• v.25 no.1
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• pp.80-86
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• 1996

어류의 carotenoid에 관한 비교 생화학적 연구의 일환으로서 잉어아과에 속하는 납지리와 줄납자루의 표피와 난의 carotenoid 조성을 비교 검토하여 다음과 같은 결론을 얻었다. 납지리와 줄납자루 표피의 총 carotenoid 함량은 납지리 수컷 2.3mg%, 납지리 암컷 1.1mg%, 줄납자루 수컷 1.9mg%, 줄납자루 암컷 0.8mg%로 나타나 수컷 표피의 총 carotenoid 함량이 암컷 표피보다 다소 높았다. 표피의 carotenoid 조성은 lutein, lutein epoxide, tunaxanthin, zeaxanthin, triol 이 주성분을 이루었고 그외, $\beta-carotene,$ $\alpha-cryptoxantinm$ cyn-thiaxantin 이 함유되어 있었다. 납지리 수컷의 표피에는 줄납자루 수컷에 비해 lutein의 함량치가 높았고 줄납자루 수컷의 경우는 납지리 수컷이 비해 lutein epoxide와 tunaxanthin의 함량치가 높았다. 그리고 납지리 암컷을 표피에는 줄납자루 dkat에 비해 lutein epoxide 함량치가 높았도 줄납자루 암컷의 표피에는 납자리 와 줄납자루 난의 총 carotenoid 함량은 납지리 1.8mg%, 와 줄납자루 2.5mg%로 표피와는 달리 줄납자루 난의 함량치가 높았다. 납지리와 줄납자루 난의 carotenoid 조성은 다 같이 lutein, lutein epoxid 가 주성분을 이루었고 그외 triol은 표피에 비해 적게 함유되어 있었다. 동일한 잉어아과의 납지리와 줄납자루의 표피 및 나의 carotenoid 조성은 서로 유사함을 확인 할 수 있었다.

• Animal cells and systems
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• v.12 no.4
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• pp.297-304
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• 2008

Morphology and distribution of the minute tubercles projected on the skin surface of larvae with its development were observed in the Korean bitterling, Acheilognathus somjinensis. The minute tubercles appeared to be two distinct morphologies, hemispheric or scaly and vestigial structures. Just after hatching, the epidermis of the larvae consists of a thin single cell layer having smaller basophilic flat or round-flattened basal cells. As the larvae grow, the epidermis contains more small flat cells and large epidermal cells which are round and hemispheric, or scaleshaped, called minute tubercles. They are distributed over the anterior part and most part of yolk sac, posterior region of yolk sac and the body region. Vestigial epidermal cells, another minute tubercle, occur only in the caudal fin-fold region, which they are shrunken and flattened, causing the cell boundary to be unclear. They increase in number and height from just to 5 days after hatching, but they become reduced as the larvae develop gradually. The required time for those disappearance was different each by regional body: at day 20 after hatching in the anteriormost part of yolk sac, and day 11 after hatching in the posterior part of yolk sac and the body, and day 21 after hatching in two regions such most part of the yolk sac and the caudal finfold regions.

• Korean Journal of Ichthyology
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• v.18 no.3
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• pp.170-177
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• 2006

Morphology and distribution of the minute tubercles projected on the skin surface of larvae with its development was observed in the Korean bitterling, Acheilognathus koreensis, known as an endemic freshwater fish. The epidermis of the larvae consisted of a thin single layer, having smaller basophilic flat or round-flattened basal cells. In between the single cell layer, two or three layers were added and they consisted mainly of large epidermal cells just above basal cells. These large unicellular epidermal cells were mainly scale-shaped and rarely cone-shaped, and do not give any histochemical tests for mucosubstances. They were present in anterior region and most region of yolk sac. Whereas, vestigial epidermal cells were distributed in the body region and the caudal fin-fold region. These two kinds of epidermal cells, called minute tubercles, increased in number and height from Just to 8 days after hatching, but as the larvae develop gradually, they became to reduce. At 31days after hatching of free swimming stage and absolute absorption stage of the yolk sac, the minute tubercles did not exist on the whole skin of the larvae.

• Parasites, Hosts and Diseases
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• v.21 no.1
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• pp.6-10
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• 1983

A study of infestation patterns for larval trematodes from fresh-water fish and brackish-water fish was carried out during the period from June to October in 1982. They were collected by netting, asking with rod and lino, and using the a bait of crushed oil cake in a transparent plastic bowls at the three localities, Daebon-dong, Kugil-dong, and Hoam-dong in the river Taechong, Kyungpook Province, Korea. Five species of fresh-water fish, the crussian carp, Carassius carassius Linnaeus, the bullhead, Coreobagrus brfvicorpus Mori, the fat minnow, Morose oxycephalus (Bleeker) , the flat bitterling, Paracheilognathus rhombea (Temminck et Schlegel) , and the catfish, Parasilurus asotus (Linnaeus), and two kinds of brackish-water fish, the grey mullet, Mugil cephalus(Linnaeus) and the sweet-fish, Plecoglossus aztivelis (Temminck et Schlegel) were examined. Four species of the metacercariae, Exorchis eviformis, Metacercaria hasegawai, Metorchis orientalis and undetermined larvae were found. Of these, the encysted larvae of the human intestinal fluke, Metagonimus yokegawai, were found from three kinds of fresh-water fish, the crussian carp, the bullhead and the fat minnow and one species of brackish-water fish, the sweets;sh and the infestation rates for the larvae varied appreciably from fish to fish. The intensity of infestation with the Metagonimus larvae in the three species of fresh-water fish was low, and the average number of the larvae per gram of flesh varied from 0.5 to 0.2. By comparison, the brackish-water fish wqs more heavily infested and the mean number of cysts per gram of flesh in Plecoglossus altivelis was 109.2. It was foung that infection with Metagonimus yokogawai os caused by consuming raw fresh-sater fish and brackish-water fish caught in the river Taechong, Kyungpook Province, Korea.