Spawning Behavior, Egg Development, Larvae and Juvenile Morphology of Hyphessobrycon eques (Pisces: Characidae) Characidae Fishes

Jae-Min Park,Na-Ri Kim,Kyeong-Ho Han3,Ji-Hyeong Han,Maeng-Hyun Son,Jae-Kwon Cho 한국발생생물학회 2014 발생과 생식 Vol.18 No.4

Hyphessobrycon eques is a famous fish for ornamental fish market and aquarium. They are inhabit in regions of Amazon and Paraguay River basin. Serpae fishs were investigated 2–3 males are chased to female, and then males attempted to simulate the females abdomen. After fertilization, eggs were kept in incubators at 28oC. The fertilized eggs had adhesive and demesal characteristics and had a mean diameter of 0.92 ± 0.01 mm. Larvae hatched at 16 hrs post fertilization. The hatched larvae averaged 2.90 ± 0.16 mm in total length (LT). Complete yolk sac resorption and mouth opening occurred on the third day post hatching. At 45 days post hatching, the larvae were 12.5 ± 1.60 mm LT and had reached the juvenile stage.

영일만에 출현하는 부유성 난과 자치어의 종조성 및 계절변화

한경호,홍지선,김영섭,전경암,김영숙,홍병규,황동식 한국어류학회 2003 韓國魚類學會誌 Vol.15 No.2

경상북도 영일만 연안에서 2001년 2월, 5월, 8월 및 11월에 계절별로 채집된 부유성 난과 자치어의 종조성 및 계절변화를 연구하였다. 채집된 부유성 난은 총 9개 분류군으로, 멸치가 출현량의 63.4%로 가장 우점하였고, 다음 까나리는 23.7%를 차지하였으며, 나머지는 7개 분류군이 12.9%를 차지하였다. 자치어는 총 7목 28과 37개의 분류군이 출현하였는데, 그 중 32개 분류군은 종 수준까지, 3개 분류군은 속 수준까지, 2개 분류군은 과 수준까지 동정하였다. 2월에는 2목 7과 12종, 5월에는 3목 5과 7종, 8월에는 6목 18과 21종, 11월에는 6목 14과 16종이 출현하였다. 주요 출현종으로서는 까나리가 자치어 출현량의 22.7%를 차지하여 가장 우점하였으며, 다음은 멸치가 16.7%, 동갈양태속 어류가 14.1%를 차지하였고, 노래미와 쥐노래미가 각각 5.7%와 5.5를 차지하였다. The ichthyoplanktons in coastal waters of Yongil Bay were sampled during four different months (February, May, August and November 2001) to study their distribution. The collected fish eggs were identified as belonging to nine species. The most dominant species Engraulis japonicus accounted for 63.4% of the total fish eggs, followed by Ammodytes personatus (23.7%) and Sardinops melanostictus (9.2%). The collected larvae and juveniles were identified into 37 taxa (28 families, 7 orders). Of these, 32 were identified to species, three were identified to genus and two were identified to family level. The dominant species Ammodytes personatus accounted for 22.7% of the total larvae and juveniles, followed by Engraulis japonicus (16.7%), and Repomucenus sp. (14.1%). These three taxa constituted 53.5% of the total collected larvae and juveniles.

저질에 따른 꼬막(Tegillarca granosa)의 염분내성

한경호,진동수,추은경,이우범,이원교 國立 麗水大學校 環境問題硏究所 2000 環境硏究論文集 Vol.3 No.-

The present study was conducted to know the salinity tolerance of the bloody clam, Tegillarca granosa (Linnaeus) caught in Gang-jin Bay from May to June in 2000. In the experimental groups of sandy-mud, the survival and infiltration rate were not bad at 20~40ppt, but all the bloody clam, Tegillarca granosa died at more than 50ppt and less than 10ppt before the experiment finish. In the experimental groups of muddy, the survival and infiltration rate wrer not bad at 20~35ppt and then 40ppt, 45ppt. All the bloody clam, Tegillarca granosa died at more than 50ppt and less than 10ppt. The infiltration rate was high at 25~35ppt in the both of two experimental groups. In the sandy-mud, the bloody clam, Tegillarca granosa infiltrated less than half of their shells at 25ppt, 30ppt but in the muddy, they infiltrated more than half of their shells at 25ppt, 30ppt, 35ppt.

한국産 참복屬(참복科) 魚類의 分類學的 硏究

韓景鎬,金容億 여수대학교 1998 論文集 Vol.12 No.2

The taxonomic revision of the Genus Takifugu(Tetraodontidae) was conducted based on the specimens collected from the coasts of Korea Peninsula from July, 1990 to August, 1994. The species relationships of 15 species of the genus Takifugu were studied based on external morphological characters. Of these, 3 species are new to the Korean fish fauna. They are Takifugu bimaculatus (Richardson). Takifugu snyderi(Abe) and Takifugu sp... Based on spinous scales(prickles), the species of T. alboplumbeus, T. rubripes, T. chinensis, T. xanthopterus, T. niphobles, T. stictonotus, T. flavidus, T. bimaculatus have dorsal and ventral region, and those of T. obscurus have dorsal, ventral and opercular region, while T. snyderi, T. vermicularis, T. prophyreus have no spinous scales. Takifugu stictonotus have larger ventral spinous scales than dorsal ones. Takifugu alboplumbeus and T. poecilonotus were considered ancestral group because of the ancestral character of the vertebrae, dorsal and anal fin ray and pterygiophors.

넙치(Paralichthys olivaceus)의 초기생활사 : ll. 仔稚魚의 골격발달 ll. Osteological Development of Larvae and Juveniles

韓景鎬,金容億 여수대학교 1998 論文集 Vol.13 No.2

넙치 친어를 1995년 5월 19일 오전 8시에 경상북도 포항시 종묘배양장에서 건식법으로 인공수정한 후 수정난에서 孵化한 仔魚를 사육하면서 孵化後 50일까지 매일 10개체를 무작위 추출하여 5% 중성 formalin에 고정시킨 뒤 표본을 염색하여 성장에 따른 골격의 정상적인 發達 過程을 관찰하였다. 1. 孵化後 6∼7일째인 全長 3.75∼3.87㎜의 仔魚에서 額骨과 頭蓋骨이 가장 먼저 骨化되기 시작한다. 2. 脊椎骨은 腹椎骨이 먼저 發達하여 尾椎骨 쪽으로 骨化가 진행되며 각 椎骨에 대응하는 神經棘과 血管棘이 椎體보다 먼저 骨化한다. 3. 腰帶骨은 肩帶部의 鎖骨 下部에 접착되어 있다. 4. 담기골은 脊椎骨과 각 지느러미 연조가 거의 완성된 후에 骨化한다. 5. 尾骨의 尾部棒狀骨은 앞의 椎體와 거의 동시에 骨化하기 시작한다. 6. 모든 내부 골격은 全長 14.60∼20.90㎜ 전후(孵化後 40∼50일째)에 肩帶骨과 腰帶骨이 완전하게 骨化됨으로서 모두 완성된다. The flounder, Paralichthys olivaceus (Temminck et Schlegel) used in the experimental were caught at Pohang brook was performed in May 19, 195 and hatched larvae were reared for 50 days to describe the osteological development of larvae and juveniles. Ossification of the cranium took place at 4.75㎜ of mean total length(MTL) in frontal, supraoccipital, parasphenoid and sphenotic. Ossification of the viseral skeleton occurred in areas where active movements of bones were required, notable in the parts for feeding(premaxillary, dentary, articular) and respiration(opercle, prepercle). 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. In jaw bones, maxillary and a part of dentary appeared first at 4.75㎜ of MTL and attained a fundamental structure at 6.47㎜ of MTL. Ossification of all bones was nearly completed at 16.80㎜ in MTL(45 day after hatching).

한국산 붕어(Carassius auratus)의 초기생활사

한경호,진동수,유동재,백승록,황동식 여수대학교 2001 論文集 Vol.16 No.-

The egg development and morphological development of larvae and juveniles of crucian carp, Carassius auratus (Linnaeus) caught at Bosung River, Chollanam-do, in April to June, 1999 were investigated in the laboratory, Yosu National University. In the spawning season, the nuptial organ was appeared on the opercular region and under region of eye, pectoral fin, ventral fin and lateral line. The egg was transparent of yellowish brown color, demersal of adhesive and sperical in shape, measuring 1.49∼1.63㎜ (mean 1.57㎜, n=50) in diameter. The first hatching was occured in 75 hours 10 minutes after fertilization in water temperature 18.3∼21.7℃. Newly hatched larvae attained mean 4.28㎜ had a big yolk sac and their mouth, and anus were not opened yet. At 5 days after hatching, the larvae attained mean 5.34㎜ and the yolk sac was almost absorded. At 13 days after hatching, the larvae attained mean 7.21㎜. The caudal notocord was flexed 45°upward, and they reached post larvae stage. At 31 days after hatching, the larvae, mean 14.68㎜ in TL reached the juvenile stage with all of the fins formed with complete set of the fin rays (D. ⅩII-11∼15; A. Ⅲ-5∼6; P. 15∼16; V. 1-8).

광양만 묘도해역의 魚類 군집의 종조성 및 양적변동

한경호,윤연미,양한춘 여수대학교 1998 論文集 Vol.13 No.2

전라남도 광양만 묘도 주변의 연안어장에서 1997년 2월부터 12월까지 6회에 걸쳐 소형 저인망을 이용하여 어획물을 채집하여 魚類 군집의 종조성 및 양적변동을 조사하였다. 채집된 어류는 총 8目 38科 56屬 66種 21,541개체, 175,330g 으로 농어目(Perciformes), 쏨뱅이目(Scorpaeniformes) 및 가자미목(Pleuronectiformes) 어류가 총 50種으로 전체 출현종수의 75.8%를 차지하였으며, 科別로는 망둑어科() 어류가 8種 出現하여 가장 많았다. 총 66種의 어류중 개체수는 주둥치(Leiognathus ruchalis), 전어(Konosirus punctatus), 멸치(Engraulis japonicus), 준치(Ilisha elongata), 실양태(Repomucenus valencinnei), 보구치(Argyrosomus argentatus), 및 청멸(Thryssa kammalensis)의 7種이 전 개체수의 95.4%를 차지하여 우점종으로 나타났다. 生體量은주둥치, 전어, 꼼치(Liparis tanakai), 숭어(Mugil cephalus), 준치, 보구치, 문절망둑(Acanthogobius flavimanus), 멸치, 쥐노래미(Hexagrammos otakii) 및 실양태의 順으로 이들 10種이 全生體量의 86.1%를 차지하여 우점하였다. 출현 개체수와 생체량은 고수온기인 봄과 여름에 높게 나타났으며, 저수온기의 가을과 겨울에 낮게 나타나 수온과 밀접한 관계가 있었다. 월별 출현종수는 수온이 낮은 2월과 높은 8월에 각 19種과 20種이 出現하여 적었고, 수온이 상승하기 시작한 4월에 37種으로 가장 많았다. 종다양도지수는 0.460∼1.833으로 2월에 가장 높았으며, 6월에 낮았다. 주요 魚種의 出現頻度는 주둥치, 전어, 준치 및 실양태가 年中 出現하여 본 해역에 우점하는 주거종으로 나타났다. To determine seasonal fluctuations in abundance and species composition, fish samples were collected by a bottom trawl from February to December 1997 off Myo-do in Kwangyang Bay. A total of 21,541 fishes were sampled and indentified into 66 species, 38 families and 8 orders. Of the eight orders, Perciformes, Scorpaniformes and Pleuronectiformes accounted for approximately 75.8% of the fish fauna in this area. Gobiidae was dominant representing 8 species. Of 66 species identified, Leiognathus nuchalis, Konosirus punctatus, Engraulis japonicus, Ilisha elongata, Repomucenus valenciennei, Argyrosomus argentatus and Thryssa kammalensis accounted for 95.4% of the individuals collected. Leiognathus nuchalis, Konosirus punctatus, Liparis tanakai, Mugil cephalus, Ilisha elongata, Argyrosomus argentus, Acanthogobius flavimanus, Engraulis japonicus, Hexagramus otakii and Repomucenus valenciennei constituted 88.1% of the total biomass. Fish fauna in both number and biomass were higher in spring and summer, than other in autumn and winter. A peak abundance of total fishes occurred in April: the following abundance July: the lowest abundance in February. The number of species showed some significant seasonal variations however, a larger number of individuals and greater biomass was observed from July to August than October to the next February.

저질에 따른 바지락(Ruditapes philippinarum)의 염분내성

한경호,오성현,장선익,이우범,이원교 國立 麗水大學校 環境問題硏究所 2000 環境硏究論文集 Vol.3 No.-

Salinity tolerance of the manila clam, Ruditapes philippinarum in Gang-jin Bay on the from May to June was investigated in two different types of sedimentary composition. In the experimental groups of sandy-mud, the survival and infiltration rate were good at 20~40ppt, but all the manila clam, Ruditapes philippinarum died at more than 50ppt and less than 10ppt before the experiment finish. In the experimental groups of muddy, the survival and infiltration rate were the best at 25~35ppt and then 20ppt, 40ppt. All the manila clam, Ruditapes philippinarum died at more than 45ppt and less than 15ppt. The survival rate in the experimental groups of sandy-mud was higher than muddy ones, and the infiltration rate was the highest at 20~35ppt in the both of two experimental groups. In the sand-mud, the manila clam, Ruditapes philippinarum infiltrated half of their shells but in the muddy, they infiltrated more then half of their shells.

한국産 밀복屬과 은띠복屬(國名新稱) 魚類의 分類學的 硏究

韓景鎬,金容億 여수대학교 1998 論文集 Vol.12 No.2

The taxonomic revision of the six species(L. lunaris, L. goloveri, L. wheeleri, L. inermis, L. laevigatus and P. sceleratus) of the genera Lagocephalus and Pleuranacanthus from Korea carried out based on external morphological characters. Six species representing 2 genera of the Family Tetraodontidae in Korea redescribed, and provisional keys to species were provided. Of thses, 2 species are new to the Korean fish fauna. They are Lagocephalus laevigatus (Linnaeus) and Pleurancanthus sceleratur (Gmelin). Lagocephalus inermis differs from the other four congeneric species, since it shows 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.

울산연안 定置網에 어획된 漁類의 종조성 및 양적변동

한경호,김종헌,백승록 한국어류학회 2002 韓國魚類學會誌 Vol.14 No.1

울산 정자연안 외측에 위치한 정치망에서 1998년 2월, 4월 ,6월 ,8월 10월 및 12월, 총 6회에 걸쳐 어획물을 채집하여, 魚類의 種組成, 量的變動 및 群集構造에 대하여 연구하였다. 채집된 어류는 총 12目 45科 89種, 62,978개체였고, 총 생체량은 6,494㎏이였다. 농어目 어류와 쏨뱅이目 어류가 총 56種으로 전체 出現種數의 62.9%를 차지하여 가장 우점하는 目들로 나타났으며, 科別로는 전갱이科와 참복科 어류가 각각 7種 出現하여 가장 많은 種이 出現하였다. 총 89種의 어류중 個體數는 고등어, 전갱이, 멸치 및 말쥐치의 4種이 全個體數의 89.7%를 차지하여 우점하였다. 生體量은 고등어, 전갱이, 꽁치, 말쥐치, 전어, 꼬치고기, 멸치, 정어리, 임연수어 및 덕대의 順으로 이들 10種이 全生體量의 95.5%를 차지하여 우점하였다. 出現 個體數와 生體量은 고수온기인 여름에 높게 나타났으며, 저수온기인 봄과 겨울에 낮게 나타나 수온과 밀접한 관계가 있었다. 월별 出現種數는 2월과 10월에 비교적 적은 種이 출현하였으며, 4월에 49種, 6월에 50種이 나타나 가장 많은 種이 출현하였고, 8월에 46種, 12월에 44種이 出現하였다. 종다양도지수(H')와 0.693~2.146으로 4월에 가장 높은 값을 보였고, 8월에 가장 낮은 값을 보였으며, 우점도지수는 다양도지수와 반대로 4월에 가장 낮은 값을 8월에 가장 높았다. 주요 魚種의 出現頻度를 보면 고등어, 전갱아. 멸치, 말쥐치, 꽁치, 전어, 망상어 및 정어리가 거의 年中 出現하여 본 해역에서의 주거종이었다. Fishes were collected by set net to determine seasonal species composition and fluctuation in abundance in coastal waters of Ulan. Korea, in February, April, June, August and December, 1998. A total of 62,978 fishes (6,494㎏) were sampled and classified into 12 orders, 45 families and 89 species. The most dominant orders were Perciformes and Scorpaeniformes, which accounted for 62.9% of the total. The most dominant families were Carangidae and Tetraodontidae, each represented seven species. The most dominant species were Scomber japonicus, Trachurus japonicus, Engraulis japonicus and Maurolicus muelleri, which accounted for 89.7% of the total fishes collected. The most dominant in biomass were Scomber japonicus, Trachurus japonicus, Cololabis saira, Thamnaconus modestus, Konosirus punctatus, Sphyraena pingues, Engraulis japonicus, Sardinops melanostictus, Pleurogrammus azonus and Pampus echinogaster. Those species together accounted for 95.5% of the total biomass. The number of individuals and the biomass were much higher in summer than in spring and winter, and closely correlated with water temperature. The number of species showed a peak in August, with 46 species, and the lowest number in February, with 30 species. The diversity index was the highest in April(H'=2.146) and the lowest in August(H'=0.693).