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ACOMS+ 및 학술지 리포지터리 설명회

  • 한국과학기술정보연구원(KISTI) 서울분원 대회의실(별관 3층)
  • 2024년 07월 03일(수) 13:30
 

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2017과 2018년 춘절기 충남 보령시 주교 조간대에 서식하는 자연산 바지락 (Ruditapes philippinarum) 치패의 공간적 분포
이희중(국립수산과학원 남동해수산연구소) ; 정희도(국립수산과학원 갯벌연구소) ; 송재희(국립수산과학원 서해수산연구소) ; 박경일(군산대학교) pp.81-85
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Abstract

The Jugyo intertidal zone, located in Boryeong of Chungcheongnam-do Province on the west coast of Korea, is a well-known for natural seed production of the Manila clam Ruditapes philippinarum. In the present study, to understand the spatial distribution and density of natural seeds of wild Manila clams inhabiting this tidal flat, sediments were collected from 48 sites during mid-March in 2017 and 2018, and the density and size of the clams were measured. The collected clams were divided into five size groups (< 5mm, 5-10 mm, 10-20 mm, 20-30 mm, and > 30 mm). In addition, the clams were various ages, from spats measuring < 5 mm in length to those longer than 30 mm. In particular, during the 2017 survey, the densities of the five groups were comparable however, during the 2018 survey, over 90% of the individuals were spats of < 5 mm, whereas large individuals over 40 mm were not observed. Taken together, these results indicate that in the studied tidal flat, annual production fluctuates greatly, thus stable seed production should be induced through the continuous inhabitation of large individuals that serve as brood stock, as well as maintaining suitable sediment type.

First record of the starry night octopus, Callistoctopus luteus (Sasaki, 1929) (Cephalopoda: Octopodidae) from Korea
이상화(Invertebrate Diversity Institute (InDI)) ; 오택관(국립해양생물자원관) ; 김민섭(국립해양생물자원관) ; 김형준(국립해양생물자원관) pp.87-91
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Abstract

In this study, commonly known as “starry night octopus” or “small-spot octopus”, Callistoctopus luteus (Sasaki, 1929), was newly recorded in Korea. This species is distributed in warm temperate oceans and is found at depths of up to 82 m. To data, 13 species in genus Callistoctopus have been recorded worldwide, but none have been reported in Korean waters. Herein, we provide the diagnostic characteristics with descriptions and pictures of C. luteus and with mitochondrial cytochrome c oxidase I (cox1) partial sequence.

새꼬막 (Scapharca subcrenata) 부착기 유생을 이용한 고밀도 채묘에 관한 비교 연구
한종철(국립수산과학원) ; 황인준(국립수산과학원 서해수산연구소) ; 강정하(국립수산과학원) ; 강희웅(국립수산과학원) pp.93-100
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Abstract

The purpose of this study is to improve economical seed production of ark shell, Scapharca subcrenata by remote induced setting method. The setting rate according to the ark shell setting method differed from the set on net by 5.7% and high-density settlement system (Downwelling system) by ranging from 11.1-19.8%. Setting rate of high-density system was significantly influenced by initial stock in density were setting rate of high-density system was variable, at stocking density 30 × 104 individuals per setting aquarium with a setting rate 19.8%. however setting rates of between 60-90 × 104 individuals per setting aquarium were 13.8-11.1%, with higher density leading to higher setting rate. Using substrate in the high-density setting system, the setting rate was investigated and without substrate, microcultch 300 mL and microcultch 600 mL experimental condition with a non substrate condition was 17.2%, the microcultch 300 mL condition was 14.1%, the microcultch 600 mL condition 13.8%. The stimulation of increased setting rate by less substrate as microcultch, a situation beneficial to setting efforts for the species. As a result of investigating the new setting method of S. subcrenata artificial seeds, the hige-density setting method (Downwelling system) was able to produce 85 times higher per unit area than existing natural setting method, and it is expected that mass artificial seed production, S. subcrenata will be possible.

왕우럭 (Tresus keenae) 치패의 생존 및 성장에 미치는 수온, 사육밀도 및 먹이공급 등의 요인의 영향
김철원(한국농수산대학교) ; 이영미(엠에스바이오랩) ; 전하정(엠에스바이오랩) ; 김희린(엠에스바이오랩) ; 강한승(엠에스바이오랩) pp.101-110
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Abstract

This study was conducted to investigate the influence of environmental factors such as water temperature, rearing density, food organism and feeding amount on the growth and survival of spat in surf clam, Tresus keenae. As a result of this study, the optimum conditions of spat rearing were as follows. The optimum range of water temperature is 22℃ to 25℃, the optimum rearing density is 500 ind./cm2 and the supply of mixed feed organism for spat rearing such as Isochrysis galbana, Chaetoceros simplex and Tetraselmis suecica is 50 × 104 cells/ml-100 × 104 cells/ml. The results of this study suggest that the optimum conditions of environmental factors in spat rearing of Tresus keenae contribute to productivity improvement through rapid growth and high survival.

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