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NTIS 바로가기한국수산과학회지 = Korean journal of fisheries and aquatic sciences, v.52 no.5, 2019년, pp.482 - 495
이동훈 (경기도해양수산자원연구소) , 김진영 (경기도농업기술원) , 임성률 (경기도해양수산자원연구소) , 김달영 (경기도해양수산자원연구소) , 김광배 (경기도해양수산자원연구소) , 김주민 (세븐필라) , 김정대 (강원대학교 동물생명과학대학)
This study compared the productivity of fish and vegetables grown using the hybrid biofloc technology-aquaponics (HBFT-AP), a semi-recirculating aquaculture system (SRAS), and hydroponics (HP). For the study of fish productivity (HBFT-AP vs. SRAS), fish were provided feed containing 3.0% monobasic p...
핵심어 | 질문 | 논문에서 추출한 답변 |
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아쿠아포닉스(aquaponics)란 무엇인가? | 아쿠아포닉스(aquaponics)는 수산양식(aquaculture)과 농업의 수경재배(hydroponics)가 결합된 복합재배 시스템으로, 수산양식 생물의 성장과 생존을 위해 공급된 먹이(사료)가 종속및 독립영양미생물(heterotrophic and autotrophic microorgan-isms)에 의해 각종 무기물과 질산염으로 분해 및 생성된 것을식물이 성장 영양소로 흡수하면서 양어수질의 안정화와 식물성장을 이루어지게 하여 사육수의 교환없이 지속적으로 농∙수산물을 생산할 수 있는 친환경 생산방법이다(FAO, 2014). 아쿠아포닉스에서 식물생산을 위해 제공되는 양어사료는 식물이 필요로 하는 13종류 영양소(N, P, K, S, Ca, Mg, Fe, Mn, Cu, Zn, B, Mo, Al) 중 10종류는 식물이 성장할 수 있는 적정량을 제공하나, Ca, K, Fe와 같은 영양소는 매우 부족할 정도로 존재하여 인위적으로 추가 되어야 한다(Rakocy, 2007). | |
사육수의 재순환을 통한 양식방법의 대표적인 방식에는 무엇이 있는가? | 현재까지 수산양식에서 사육수의 재순환을 통한 양식방법으로 recirculating aquaculture system (RAS)과 biofoc technology (BFT)가 대표적이나(FAO, 1986; Avnimelech et al.,2015), 국내 순환여과식양식(RAS)은 완전히 물을 재사용하는 것이 아니라 하루에 전체 순환수의 10% 이하가 환수되고 보충되는 것이 일반적이다(Suh et al. | |
안정적으로 배액을 재사용하는 연구가 진행되는 이유는 무엇인가? | 또한 농업분야에서 수경재배(hydroponics)는 인공 배지인 양액(nutrient solution)을 사용하는데, 배지 내 염류의 집적을 방지하기 위해 식물의 증산 요구량 이상으로 양액을 관수하여 일정 비율의 배액을 발생시키는 것이 일반적이다. 배액은 영양염 농도가 높기 때문에 방류할 경우 환경오염원으로 이어질 수 있어 비료와 수자원을 낭비하게 된다(Ahn and Son, 2011). 이러한 이유로 안정적으로 배액을 재사용하는 연구가 현재 진행되고 있으나(Gieling et al. |
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