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넙치(Paralichthys olivaceus) 자치어의 소화기관 형태 발달
한경호,김관석,이성훈,Han, Kyeong-Ho,Kim, Kwan-Seok,Lee, Sung-Hoon 한국발생생물학회 2007 발생과 생식 Vol.11 No.2
넙치 자치어의 초기 발육단계에 따른 소화관의 형태 발달과정을 관찰한 결과, 부화 직후의 전기 자어는 평균전장 $25.0{\pm}0.14\;mm$(n=20)로 입과 항문이 아직 열려 있지 않았고, 소화관은 배체와 난황 사이에 원시 소화관의 형태로 거의 직선상으로 식도에서 항문이 생길 부분까지 길게 신장되어 있는 형태였다. 부화 후 $7{\sim}8$일째 후기 자어는 평균 전장 $5.05{\pm}0.40\;mm$(n=20)로 소화관이 발달하여 먹이의 섭취활동이 활발하였으며, 소화관은 배쪽으로 팽창하여 장과 연결되어 위가 발달하기 시작하였고, 소화관의 전반부와 후반부가 구별되어 소화기관이 분화하기 시작하였다. 부화 후 $13{\sim}14$일째 후기 자어는 전장이 $6.50{\pm}0.25\;mm$(n=20)였고, 소화관은 앞부분에서부터 1회전되어 회전부분의 면적이 넓어져 있었으며, 소화관이 식도, 전장, 중장, 후장으로 완전히 분화되면서 소화관의 기본적인 구조가 확립되었다. 부화 후 30일째 개체는 전장 $12.40{\pm}0.55\;mm$(n=20)로 위는 비대하여 분문부와 유문부가 뚜렷하게 구별되었고, 소화관은 위, 전장, 중장, 후장 및 직장이 명확하게 구분되어 치어기로 이행하여 성어와 유사한 구조로 발달하였다. 부화 후 40일째 치어는 전장이 $16.15{\pm}0.85\;mm$(n=20)로 소화관 형태는 식도부, 유문부, 장의 전장, 중장, 직장이 크게 팽창되어 상대적으로 후기 자어의 소화관 형태와는 다소 차이가 있었다. Morphological changes on digestive tract were observed using Flounder, Paralichthys olivaceus to elucidate the early developmental processes. Hatched larvae, ($2.50{\pm}0.14\;mm$ in total length: TL) has not opened its mouth and anus. The digestive tract showed linear tubular form from mouth to anus extending along with yolk. On $7{\sim}8$ days from hatching, the post-larvae, ($5.05{\pm}0.40\;mm$ TL) has developed digestive tract and activated for feeding. The digestive tract expanded into dorsal side, joined to intestine, and the stomach began to develop. The digestive tract was divided into an anterior and posterior region, and began to differentiate. In the post-larvae($6.50{\pm}0.25\;mm$ TL) on $13{\sim}14$ days from hatching, the digestive tract twisted one cycle in the anterior region, the area was expanded. The digestive tract was completely differentiated into oesophagus, anterior intestine, middle intestine, posterior intestine and arranges fundamental structure. In the embryo($12.40{\pm}0.55\;mm$ TL) after 30 days from hatching, stomach became large and could be distinguished from cardia and pyloric parts apparently. The digestive tract developed similar with that of adult flounder showing clear division of stomach, anterior intestine, middle intestine, posterior intestine and rectum. In the embryo($16.15{\pm}0.85\;mm$ TL) after 40 days from hatching, esophagus, pyloric part, anterior intestine, middle intestine, and rectum have largely expanded, and thus the morphological features are somewhot different with those of post-larvae flounder.
양태과 (Platycephalidae) 어류 3종의 척추골과 담기골 특징
한경호(Kyeong-Ho Han),이성훈(Sung-Hoon Lee),김희진(Hee-Jin Kim),추보라(Bo-Ra Chu) 전남대학교 수산과학연구소 2020 수산과학연구소논문집 Vol.28 No.2
In order to study osteology on the family Platycephalidae 3 species (Platycephalus indicus; Cociella crocodila; Inegocia japonica) were collected in Yeosu city Namsan fish market and Goheung Nokdong fish market from January 2014 to October 2014, and were applied to analyzes such as osteological charcteristic. The family Platycephalidae 3 species were the same vertebrae number as 26, but P. indicus was different from C. crocodila and I. japonica by having 11~12 abodominal vertebrae and 14~15 caudal vertebrae. Both of C. crocodila and I. japonica were the same by having 10 abodominal vertebrae and 16 caudal vertebrae. Dorsal pterygiophores of P. indicus was 22 and formula of pterygiophores was 2*12111111112111111111. Anal pterygiophores which is ventral pterygiophores was 13 and it started from 11th vertebrae. C. crocodila’s dorsal pterygiophores was 19 and the formula of pterygiophores showed 2*111111111211111111. Anal pterygiophores was 11 and started from 11th vertebrae. The dorsal pterygiophores of I. japonica was 22 and the formula of pterygiophores was 2*12111111121111111111. Anal pterygiophores was counted 13 and it started from 11th vertebrae. Therefore, the pterygiophores formula on the family Platycephalidae 3 species were distinguished one another.
한경호(Kyeong Ho Han),김용억(Yong Uk Kim) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.5
Twenty semen species of pufferfishes (family Tetraodontidae) Have been examined to find their generic characters based on vertebrae and pterygiophore characters of specimens collected in 20 localities along the coast of Korea from March 1991 to March, 1994. It was divided by 3 groups based on vertebrae number as fellow : the genera Lagocephalus, Pleurancanthus, Spheoides, Arothron, Chelonodon and Canthigaster have 17∼19 vertebrae, genera Ephippion, Boesemanichthys and Feroxodon have 20 vertebrae, and genus Takifugu have 19∼25 vertebrae. The number of vertebrae ranged from 17 to 25 with the maximum of 25 in Takifugu obscurus. The modal number of vertebrae in Lagocephalus is 17 (L. lunaris), 18 (L. inermis), and 19 (L. gloveri, L. wheeleri, L. lavigatus), with the lower number more specialized. Paired neural spines appear at number of the 1 st∼5th vertebrae in Takifugu pardalis, Takifugu obscurus and at number of the 1st∼4th vertebrae in the other species and genera. All of the species of Lagocephalus and Pleurancanthus have dorsal and ventral pterygiophores processes, and flat-shaped epural, while none of the abdominal vertebrae processes complete haemal arches. The neural and haemal spines of the last few caudal vertebrae are shorter in Pleurancanthus than in the other genera, associated with the depressed caudal peduncle. The genus Canthigaster is distinguished the first pterygiophores of the dorsal and ventral fins is always much larder than the others genera. Based on the haemal arches and spines of the abdominal vertebrae, genus Canthigaster has different characters from the other genera of the family Tetraodontidae.
얼룩통구멍 (Uranoscopus japonicus)과 푸렁통구멍 (Xenocephalus elongatus)의 외부형태 및 골격 비교
한경호(Kyeong-Ho Han),문지연(Ji-Yeon Moon),기선우(Seon-Woo Ki),유태식(Tae-Sik Yu),이성훈(Seong-Hoon Lee) 전남대학교 수산과학연구소 2020 수산과학연구소논문집 Vol.28 No.2
In order to comparison of morphology and osteology between Uranoscopus japonicus and Xenocephalus elongatus, the fishes were collected from fresh fish market in Yeosu. There were body spot, body type, and the first dorsal fin presence of morphological classification characteristic form and quality. The differences of covariance were presented in following characteristics: body depth, clavicle spine length, and second longest dorsal fin length against total body length; head depth and eye length against head length. The difference of taxonomic characteristics of skeleton were cranium, preopercle, opercle, and pterygiophores.
진해만 북부 해역에 분포하는 부유성 난 및 자치어의 종조성 및 양적변동
한경호 ( Kyeong-ho Han ),유태식 ( Tae-sik Yu ),이진 ( Jin Lee ),이성훈 ( Sung-hoon Lee ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.1
Fish eggs and larvae were collected in July and November of 2013 and January and May of 2014 to determine seasonal variation in the species composition of ichtyoplankton. Samples were classified based on morphological characteristics. Fish eggs were identified as belonging to five taxa; the most dominant species of fish eggs was Engraulis japonicus (62.05%) followed by Sardinops melanostictus (21.02%) and Leiognathus nuchalis (13.71%). These three species accounted for 96.8% of the total number of fish eggs collected. Larvae of 17 species in six families, and six orders were collected. The most dominant species of fish larvae was E. japonicus (51.79%), followed by L. nuchalis (12.59%) and Omobranchus elegans (12.08%). These three species accounted for 76.46% of the total number of larvae collected. Jinhae Bay was identified as a major spawning and nursery ground for fish species inhabiting in the south coast of Korea, such as E. japonicus, L. nuchalis, S. melanostictus, and Omobranchus elegans. Therefore, management of marine fish resources in the South Sea should necessarily include the ecological management of Jinhae Bay.
가시꺽정이(cynectes maschalis) 仔稚魚의 成長에 따른 形態發達
Kyeong Ho HAN(韓景鎬),Yong Uk KIM(金容億) 전남대학교 수산과학연구소 1998 수산과학연구소논문집 Vol.7 No.-
Ocynectes maschalis Jordan et Starks caught at Pusan brook was performed in May and June 1996, describe the development of larvae and juveniles. Absorption of the yolk was completed at about 7.7 ㎜ in total length(TL), and possessed 31~33 myomeres. Flexion of the notochord started and finished at about 9.7 ㎜ in TL and about 11.5 ㎜ in TL, respectively. Aggregate numbers of all fin rays and vertebrae were completed at over 15.8 ㎜ in TL, at which time the larvae reached the juvenile stage. The pigment patten became the same as that of adults in juveniles longer than 17.5 ㎜ in TL. Vertebrate began to develop from the anterior end and to ossify posteriorly. Neural and haemal spines of vertebrae ossified always prior to the corresponding centra. Ossification of vertebrae and caudal bones was nearly completed at 15.8 ㎜ in TL.
Kyeong Ho HAN(韓景鎬) 전남대학교 수산과학연구소 2000 수산과학연구소논문집 Vol.9 No.-
The puffefishes of the Family Tetraodontidae have been examined based on external morphometry, meristic characters and proportional measurements of specimens collected at 20 places along the coast of Korea from September,1989 to July, 1994. Twenty eight species representing 10 genera of the Family Tetraodontidae were redescribed, and external morphological charcters to species and genera were provided. Of these, 4 species are new to the Korean fish fauna. They are Sphoeroides pachygaster(Müller et Troschel), Chelonodon patoca (Buchanan-Hamilton), Feroxodon multistriatus (Richardson) and Ephippion guttifer (Bennett). The Genus Canthigaster has different characters in length of snout, body height, lateral line system and olfactory organ in other genus, therefore it should be included in the Subfamily rank. In Genus Ephippion the prickles on the dorsal and lateral of the body are enormously enlarged into plates forming a partial carapace. Of the 23 species which have spinous scales (prickles), Lagocephalus fishes, Takifugu stictonotus and Arothron stellatus have larger ventral spinous scales than dorsal ones. Lagocephalus inermis differs from the other four congeneric species, since it showed different synapomorphic characters of the black gill slits and prickles. The Genus Pleurancanthus has different characters of body form, meristic and measurements characters, and lateral line system in Lagocephalus, therefore it should be included in the Genus rank. The pufferfishes of the Family Tetraodontidae have been recorded total 35 species representing 10 genera. These are 19 species of Takifugu, 5 species of genus Lagocephalus, 3 species of genus Arothron, 2 species of Sphoeroides and 1 species of genus Pleuranacanthus, Boesemamichthys, Ephippion, Feroxodon, Canthigaster respectively.
두줄망둑(Tridentiger trigonocephalus) 자치어의 골격발달
한경호 ( Kyeong-ho Han ),이성훈 ( Sung-hun Lee ),김두용 ( Doo-young Kim ),서원일 ( Won-il Seo ),박재민 ( Jae-min Park ) 한국어류학회 2018 韓國魚類學會誌 Vol.30 No.3
이 연구의 목적은 우리나라 연안에 서식하는 두줄망둑의 자치어 골격발달을 관찰하여 분류학적 연구자료로 이용하는 것이다. 부화 후 7일째 평균전장 4.44±0.28mm(n=5) 일 때 섭이기능을 하는 윗턱에는 전상악골, 주상악골이 골화하였고, 아래턱에는 악골이 골화하기 시작하였다. 부화 후 13일째 평균전장 5.62±0.24 mm (n=5) 일 때 두개골의 액골, 노정골, 상이골이 골화하였다. 부화 후 32일째 평균전장 11.8±0.28 mm(n=5) 일 때는 견대부에 사출골, 후쇄골이 골화하였고, 부화 후 40일째 평균전장 13.3±0.21mm(n=5) 일 때 두개골의 측사골이 골화하면서 모든 골격의 골화가 완료되었다. This study was carried out to observe the development of the autonomous skeletal development of the Tridentiger trigonocephalus. Seven days after hatching, the skeleton of the two line cranes began to ossify at premaxillary, maxilla and dentary when the average total length was 4.44 mm (n=5). At thirteen days after hatching, the frontal, parietal, and epiotic ossicles were observed in the cranium when the average total length was 5.62 mm (n=5). At thirty-two days after hatching, actinost and post cleithrum were ossified at the shoulder when the average total length was 11.8 mm (n=5). At forty days after hatching, the lateral ethmoid of the skull was ossified with an average total length of 13.3 mm (n=5) and all skeletal development was completed.