의암호의 (衣岩湖) 패류에 (貝類) 관한 연구 (3) - 대칭이 ( Anodonta fukudai ) 의 유생형태에 (幼生形態) 관한 연구 -

권오길 ( Oh Kil Kwon ) 한국하천호수학회 1983 생태와 환경 Vol.16 No.1·2

The embryonic development, the releasing from the mussels, the fixing mechanism on the host, and the morphological characters of glochidia of Anodonta fukudai were investigated. This freshwater mussel incubates youngs in the outer demibranchs and attaches them to the fins of various fish before assumming a free-living existence. Glochidia are released in small groups in which the members are joined by interwined larval filaments(threads). Glochidia attach externally to the body of a fish, probably by the means of the hooks and attach to the host firmly by a cyst-like structure excreted by host and haustoria acting both trophic and fixing. The anodantae glochidium is large-subtriangular form and arms with spined hooks at the apex of the ventral side.

한강 유역환경의 종합적 연구 (2) / 담수삿갓조개 ( Pettancylus nipponicus ) 의 산란과 발생에 관한 연구

권오길(Oh Kil Kwon),이준상(Jun Sang Lee),박갑만(Gap Man Park) 강원대학교 환경연구소 1985 한강유역조사보고서 Vol.- No.-

의암호의 (衣岩湖) 패류에 (貝類) 관한 연구 (1) - Anodonta fukudai 유생의 어체부착에 (魚體附着) 관하여

권오길 ( Oh Kil Kwon ) 한국하천호수학회 1981 생태와 환경 Vol.14 No.3·4

The auther has studied the attachment of glochidia of A. fukudai to the fish in the Lake Uiam. This research is one of the ecological studies on the molluscs in this lake. The attachment of the glochidia to the fish body is summarized as follows: 1. The fish attached the glochidia of this mussel are 5 species including Carassius carassius, Oryzias lapites, Pseudorasbora parva, Misgurnus anguillicaudatus, Channa argus. 2. The attachment of giochidia of A. fukudai to the fish was found from December to February, while other mussels were in April. 3. The infectious rates of glochidia were 82%, 40% and 18% in M. anguillicaudatus, O. lapites and C. carassius respectively. The average rate of these 5 species was 26.9%. 4. The number of glochidia attached to each fish were 26, 13 and 8 individuals in C. argus, P. parva and M. anguillicaudatus respectively. And the average number was 4.9 individuals. 5. The attachment parts on the fish were 42.1%, 29.4% and 10.9% in pectoral fin, caudal fin and dorsal fin, and also on the base of pelvic and mouth part.

의암호의 (衣岩湖) 패류에 (貝類) 관한 연구 (4) - 칼조개 ( Lanceolaria acrorhyncha ) 의 배발생과 (胚發生) 유생형태에 관한 연구

권오길 ( Oh Kil Kwon ) 한국하천호수학회 1984 생태와 환경 Vol.17 No.1·2

Lanceolaria acrorhyncha, one of the 7 species in the family Unionidae living in the Lake Uiam, was used as an experimental material. The spermatogenesis and oogenesis, the structure of hooks, hooklets and sensory hairs, the diameter of larval threads, and the size of glochidium of Lanceolaria acrorhyncha were investigated. The results obtained in this investigation were as follows; 1. The two outer-demibranchs (marsupium) of four demibranchs were filled with glochidia as Anodonta fukudai. 2. The color of gonad and demibranch was red, yellow and white to which changed blackish brown when matured. 3. A glochidium has two hooks at the apex of the ventral side and one hook has 13 to 15 hooklets (spines) and two pairs of sensory hair were found at both side of the larval shell. 4. The size of a glochidium was 200 ㎛ in shell height, 220 ㎛ in shell lengh and 160 ㎛ in hinge lengh and the from of a glochidium was a small subtriangular shape compared with a large subtriangular in Anodonta fukudai. 5. The two white cucumiformed lumps of glochidia were excreted when spawned artificially and the diameter of larval thread was 12 ㎛. 6. The breeding season of L. acrorhyncha was the summer type having glochidia from March to November and October to May in Anodonta fukudai.

南·北漢江 淡水產 貝類의 分布相에 關한 硏究

權伍吉(Oh Kil Kwon),曺東鉉(Dong Hyun Cho),朴甲萬(Gap Man Park),李俊相(Jun Sang Lee) 강원대학교 환경연구소 1989 環境硏究 Vol.6 No.-

의암호 (衣岩湖) 패류에 (貝類) 관한 연구 (5) - 칼조개 ( Lanceolaria acrorhyncha ) 의 생식시기에 관한 조직학적 연구 -

권오길,박갑만 ( Oh Kil Kwon,Gap Man Park ) 한국하천호수학회 1985 생태와 환경 Vol.18 No.3·4

Authors have studied the size of eggs, the seasonal gonad changes, the spawning season and the demibranchs morphology of Lanceolaria acrorhyncha in the Lake Uiam. These researches were studied during the period from April 1983 to September 1984. The results of these investigations were summarized as follows; Mean diameter of the eggs was gradually increased from March (311 ㎛) to November and the mean diameter of maximum and minimum egg size was 282㎛ and 71㎛, respectively. The gonad in the female was filled with the connective tissue and the egg-sacs from March to November. The egg-sac was constricted after discharging of eggs and the connective tissue was gradually increased. The outer demibranchs of females served as marsupial(gravid) pouch. And the secondary water-tubes remain after discharging of the glochidia, and the central water-tubes served as ovisacs only in the primary water-tubes. The marsupial demibranchs lacked the divided system. The size of the marsupial demibranchs on the spawning seasons was increased three times.

의암호의 (衣岩湖) 패류에 (貝類) 관한 연구 (2) - 의암호의 (衣岩湖) 패류상과 (貝類相) 어류의 패류내 산란에 (産卵) 관한 연구 -

권오길,최준길 ( Oh Kil Kwon,Joon Kil Choi ) 한국하천호수학회 1982 생태와 환경 Vol.15 No.1·2

The investigation of mollusks and the swimming-out of pre-larva fish from mussels in the Lake Uiam was carried out from March to November in 1981. The results of these investigations were summarized as follows: 1. The dominant species of mollusks living in the Lake Uiam is Corbicula fluminea. 2. The size of Semisulcospira gottschei and Corbicula fluminea is larger in the southern parts of the lake and gets smaller toward the north of the lake. 3. Semisulcospira gottschei and Corbicula fluminea are collected from all areas in the lake, regardless to the soil texture and water depth. 4. The number of species of mollusks in the lake is two classes, three orders, seven familes, including sixteen species. 5. The swimming-out rates of pre-larva fish are 43.9%, 4.5%, and 1.9% in Anodonta fukudai, Lanceolaria acrorhyncha, and Unio douglasiae respectively. 6. The authors confirmed one more mussel(Lanceolaria acrorhyncha) from which pre-lava fish have swum out. 7. The swimming-out of pre-larva fish from mussels takes more than a month.

의암호의 (衣岩湖) 패류에 (貝類) 관한 연구 (6) - 수정또아리 , Polypylis hemisphaerula 의 산란과 발생에 관한 연구 -

권오길,이준상,박갑만 ( Oh Kil Kwon,Jun Sang Lee,Gap Man Park ) 한국하천호수학회 1986 생태와 환경 Vol.19 No.1·2

Polyplis hemisphaerula (Planorbidae) collected from the rice field and the pond near the Ch`unch`o^˘n City was used as material for researching on the egg deposition and cleavage. The samples were transfered to the aquaria controlled at 28℃ and many characters of the species were studied for three years from 1983. The shell height and width of the adult were 1. 5 mm and 5. 2 mm, respectively. In a certain occassion the method of removement was floating on the waters as Radix. The eggs were surrounded by an egg envelope made up of the jelly-like substances and an average number of the fertilized eggs contained in an envelope was 4. 2 counted 119. The mean time required from two-cell stage to four-cell stage, from 4 to 8, 8 to 16-cell was seventeen minutes respectively and the hatching period was about 4.5 days.

한국비해산패류목록 (韓國非海産貝類目錄)

권오길,파부충중 ( 波部忠重) ( Oh Kil Kwon,Habe Tadashige ) 한국하천호수학회 1979 생태와 환경 Vol.12 No.1·2

남(南)·북한강(北漢江) 담수산(淡水産) 패류(貝類)의 분포상(分布相)에 관(關)한 연구(硏究)

권오길,조동현,박갑만,이준상,Kwon, Oh Kil,Cho, Dong Hyun,Park, Gap Man,Lee, Jun Sang 한국패류학회 1985 The Korean Journal of Malacology Vol.1 No.1

The investigation of freshwater molluscs in the South Han River was carried out from 1984 and in 1985. The authors selected 12 stations and collected freshwater snails and mussels. We here publish the catalogue of molluscs in South and North Han River. The catalogue of molluscs in the South Han River is as follows; two classes, four orders, six families including twenty species(Semisulcospira coreana, Semisulcospira globus, Semisulcospira gottschei, Semisulcospira forticosta, Parafossarulus manchouricus, Gabbia misella, Radix auricularia coreana, Austroppepleaollura, Limnoperma lucustris, Lamprotula gottschei, Lanceolariaacrorhyncha, Unio douglasiae, Unio sp, Solenaia triangulalis, Anodonta fukudai, Anodonta woodiana, Corbicula felnouilliana, Corbiculafluminea, Corbicula sp).