초록 ▼

○ 붉은멍게 유생 발생률과 부착율의 적정 조건 등 초기 발생학적 특성 구명
- 발생률은 8℃, 34 에서 50.3%, 부착율은 12℃, 34 에서 42.5%로 가장 양호

○ 붉은멍게 인공종묘생산 성공
- 종묘생산 : 6백만 마리(분양 3백만 마리, ’09)

○가이식 종묘 성장
- ’09년산(8월): 양양 22.1g, 주문진 15.3g, 10월 주문진 20.7g으로 성장 양호

○양식어장의 생물 모니터
- 먹이생물: 출현종 3∼7종으로 매우 단순(4월, 6월 Protoperid

○ 붉은멍게 유생 발생률과 부착율의 적정 조건 등 초기 발생학적 특성 구명
- 발생률은 8℃, 34 에서 50.3%, 부착율은 12℃, 34 에서 42.5%로 가장 양호

○ 붉은멍게 인공종묘생산 성공
- 종묘생산 : 6백만 마리(분양 3백만 마리, ’09)

○가이식 종묘 성장
- ’09년산(8월): 양양 22.1g, 주문진 15.3g, 10월 주문진 20.7g으로 성장 양호

○양식어장의 생물 모니터
- 먹이생물: 출현종 3∼7종으로 매우 단순(4월, 6월 Protoperidinium sp., 8월 Nitzschia dellicatisima, 10월 Pseudonitzschia pungens 우점), 현존량은 2∼8 cells/㎖
- 부착생물: 총 12종 출현(단각류 97.0%)

○성분분석
- 일반성분: 일반멍게와 성분상(지방, 단백질, 열량, 지방산) 차이 없음
- 무기원소: 붉은멍게에 비해 멍게에서 금속이온(철, 구리, 알류미늄) 농도 높았음

○기능성물질 분석
- 항산화효과: 멍게와 유사(7.3～10.9%), VB 와 VC(95.8%)에 비해 현저히 낮았음
- Chondroitin 농도(0.01～0.03㎎/㎖) 및 대식세포 억제기능은 멍게와 차이가 없었으며, 헥산층 추출물(40ug/㎖)에서 혈소판 응집억제 효과 나타남
- Cartenoid 함량 : 붉은멍게가 멍게에 비해 약 2.1배 높았음

(출처 : 보고서 요약 2p)

Abstract ▼

The solitary ascidian, Halocynthia aurantium, which is commonly called the solitary ascidian because of its coloration and general shape, is a valuable organism of benthic marine population in the northern region of the East Sea, Korea. It is seldom found at a depth of less than 10 meters and the so

The solitary ascidian, Halocynthia aurantium, which is commonly called the solitary ascidian because of its coloration and general shape, is a valuable organism of benthic marine population in the northern region of the East Sea, Korea. It is seldom found at a depth of less than 10 meters and the solitary ascidian si frequently observed in large populations between 20 and 100 meters. It appears to prefer attachment to vertical rocks faces and artificial cement blocks exposed to the currents. Mass northern and reduction of resources in solitary ascidian, H. aurantium, were occurred in the benthic area of the northern region of the East Sea because of the rapid fluctuation of environmental factors such as temperature and salinity due to mass rainfall in summer and going up north of a strong warm current in winter.

Therefore, we examined the effects of temperature and salinity on embryonic development of fertilized eggs, tadpole larva to metamorphosis, and attachment to siphon development. Laboratory-raised larvae were studied using a two-factorial experimental design with four levels of temperature(8, 12, 16 and 20℃) and four levels of salinity(20, 25, 30 and 34).

The ascidian larvae of H. aurantium survived environmental conditions between temperature of 8~20℃ and salinity of 25~34 and exhibited positive growth at 8~16℃ and 30~34 . Fertilized eggs have not developed at lower salinity of 20 irrespective of temperature range tested and have showed an abnormal development at the salinity of 25 between higher temperature of 20 and 24℃. This result suggests that temperature increase and salinity reduction depending on environmental fluctuation may have signigicant impacts on population variation of H. aurantium in the northern region of the East Sea.

The hatching rate of Solitary ascidian showed the highest value, 50.3% at 8℃ in water temperature and 34 in salinity. And the highest attachment rate, 42.5% showed at 12℃, 34. We produced 6 million seeds of Solitary ascidian and parceled out 3 million in 2009.

Attached organisms in aquaculture facility was 2~8 cells/㎖ and dominant species were Protoperidinium sp(April and June), Nitzschia dellicatisima(August), and Pseudonitzschia pungens(December). Through compositional analysis of Solitary ascidian following results were obtained. Sea perch was similar to Sea squirt in contents of fats, proteins, calories and fatty acids. The concentrations of metal ions such as irons, coppers and aluminiums in Sea perch were higher than in Sea squirt. Sea perch was much lower in antioxidants than either vitmin B or Vitamin C(95.8%) but similar to Sea squirt(7.3~10.9%).

There was no difference between Sea perch and Sea squirt in the concentration of chondroitin(0.01~0.03㎎/㎖). The material which extracted from Sea perch by haxane was effective for depression of platelet aggregation. The Sea perch contained carotenoid that was 2.1 times that of Sea squirt.

(출처 : SUMMARY 7p)

목차 Contents

• 표지 ... 1
• 보고서 요약 ... 2
• 요약문 ... 3
• SUMMARY ... 7
• 목차 ... 9
• CONTENTS ... 10
• 그림목차 ... 11
• FIGURE LISTS ... 13
• 표목차 ... 16
• TABLE LISTS ... 17
• 제 1 장 연구개발과제의 개요 ... 18
• 제 1 절 연구개발 배경 ... 18
• 제 2 절 연구개발 목적 ... 18
• 제 3 절 연구개발 필요성 ... 18
• 제 2 장 국내외 기술개발 현황 ... 19
• 제 1 절 국내 연구개발 현황 ... 19
• 제 2 절 국외 연구개발 현황 ... 19
• 제 3 장 연구개발 수행 내용 및 결과 ... 20
• 제 1절 실험방법 ... 20
• 제 2절 연구결과 ... 24
• 제 4 장 목표달성도 및 관련분야에의 기여도 ... 45
• 제 1 절 연구개발목표의 달성도 ... 45
• 제 2 절 기술발전의 기여도 ... 46
• 제 5 장 연구개발 활용계획 ... 47
• 제 1 절 멍게양식 대체품종 가능성 ... 47
• 제 2 절 붉은멍게의 시장성 ... 47
• 제 3 절 붉은멍게의 기능성물질 활용 ... 47
• 제 6 장 참고문헌 ... 48
• 끝페이지 ... 49