http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
오늘 본 자료
바위털갯지렁이(Marphysa sanguinea) 유생의 착저와 초기 성장에 미치 는 기질 크기 및 유기물 함량
와와푸 ( War War Phoo ),김성균 ( Sung Kyun Kim ),김창훈 ( Chang-hoon Kim ) 한국수산과학회(구 한국수산학회) 2020 한국수산과학회지 Vol.53 No.1
Marphysa sanguinea is the most well-known polychaete species with a high economic value. However, this species has a high mortality in the early rearing stage of aquaculture. This study was conducted to find out the optimal substrate size and organic contents for the growth and survival rate of M. sanguinea larvae and juveniles. It was observed that the smaller grain size (<Ø 0.063 mm) and high organic contents (5-10%) induced settlement and reduced settlement time of larvae. Moreover, the growth and survival rate of larvae reached high levels at Ø 0.004-0.016 mm of grain sizes and 5-7.5% of organic contents as advantageous substrates for settlement. The survival rate of juveniles reached over 90% in less than Ø 0.016 mm substrate on 15-day experiment for different grain sizes of substrates. These results indicated that substrate compositions of less than Ø 0.016 mm of sand size and 5-7.5% of organic contents in mud will enhance the productivity of M. sanguinea at the early stage.
Hana Kim,Keun-Yong Kim,War War Phoo,Chang-Hoon Kim 한국동물분류학회 2021 Animal Systematics, Evolution and Diversity Vol.37 No.1
A eunicid polychaete, Marphysa victori Lavesque, Daffe, Bonifácio & Hutchings, 2017 is described for the first time from the intertidal zones of the Korean coasts. It is characterized by having three types of pectinate chaetae (INS, isodont-narrow-slender; AWS, anodont-wide-slender; and AWT, anodont-wide-thick), appearance of pectinate chaetae from chaetiger 2, the chaetae consisted of pectinate and compound spinigers, and pygidium with one pair of pygidial cirri. In genetic analysis based on cytochrome c oxidase subunit I (COI), intra-specific genetic distance between the specimens of M. victori from its type locality, France and Korea are in the range of 0.000-0.013. This paper includes the morphological description and photographs of M. victori new to Korean fauna, with partial sequences of the mitochondrial COI as DNA barcode data on this species.
Appropriate feeding for early juvenile stages of eunicid polychaete Marphysa sanguinea
( Kyeong Hun Kim ),( Byoung Kwon Kim ),( Sung Kyun Kim ),( War War Phoo ),( B. A. Venmathi Maran ),( Chang-hoon Kim ) 한국수산과학회(구 한국수산학회) 2017 Fisheries and Aquatic Sciences Vol.20 No.3
Survival rate (SR) and growth rate (GR) were tested with various feed sources to identify an appropriate feed to improve the productivity in the early life stage of the rock worm Marphysa sanguinea (Montagu, 1813) (Eunicidae: Polychaeta). In addition, feed supply rates were also examined. Three experiments were performed to identify the appropriate feed for the juvenile stages of M. sanguinea. Experiment 1 was done using seven different feed sources and without feed as well for the first 20 days of M. sanguinea culture. Decapsulated Artemia and extruded pellet for shrimp were showed with high SR and GR in the experiment 1. Experiment 2 was performed with five different feed sources. Two feeds were selected from experiment 1 in addition to eel feed, mixed micro-algae, and benthic diatom. Four different quantities of each feed were supplied to 3000 individuals of early juvenile stage of M. sanguinea. High quantity of decapsulated Artemia and shrimp feed resulted with a relatively good SR and GR. In experiment 3, we provided 20, 50, and 75 mg of decapsulated Artemia and shrimp feed to 3000 individuals of M. sanguinea. Our results demonstrated that after 3 months, decapsulated Artemia showed high survival rate and 75 mg/3000 inds provided the best quantity of feed in the earlier life stage culture of M. sanguinea.