Sustainable Integrated Finfish/Nori Aquaculture for Bioremediation and Production of Food and Biochemicals: Culture and Mesocosm Studies
|Christopher Neefus||UNH - Department of Biological Sciences||Principal Investigator|
|Charles Yarish||University of Connecticut - Stamford||Co-Principal Investigator|
|George Kraemer||State University of New York - Purchase||Co-Principal Investigator|
|Thierry Chopin||University of New Brunswick||Co-Principal Investigator|
It is important to note that nori aquaculture cannot solve the general problem of coastal eutrophication; the problem is too widespread and would require extensive and obtrusive nearshore growth facilities. However, the integration of Porphyra and finfish mariculture is one part of a comprehensive plan to reduce nutrient loads that would otherwise contribute to coastal eutrophication. The coupling of a nori production/bioremediation system to land-based effluent has three distinct advantages:
1) The effluent remains undiluted as it passes from the fishfarm to the seaweeds, maximizing seaweed uptake rates (Harrison and Druehl 1982, Wheeler 1988)
2) The costs and risks associated with the engineering structures needed to anchor bay-based (i.e., Asian) seaweed mariculture systems are avoided
3) Conflicts with recreational users of coastal waters are obviated
To obtain growth and nutrient uptake information for native species of the seaweed Porphyra that would allow successful integration with finfish aquaculture farms.
Growth rate, nutrient uptake and biochemical production of four native species of Porphyra will be determined over a range of light, temperature, nutrient and flow rate conditions. Initial studies will be done in laboratory culture. For the most promising strains and/or species, the assessment will continue in small and large-tank greenhouse mesocosms experiments. Some of the large-tank mesocosms studies will be integrated with the commercial summer flounder hatchery at Great Bay Aquafarms.
Finfish aquaculture is a rapidly growing industry both locally and globally. On a global scale, it is a multi-billion dollar industry. High levels of nutrients wasted in fish farm effluent represent an economic loss for the fish farm and a problem for the environment. Seaweed aquaculture is a multi-billion dollar industry in Asia. Annual production of seaweed Porphyra (nori) alone accounts for $US 1.8 billion.
Commercial aquaculture of Porphyra in the northeast is in its infancy. Seaweed requires significant amounts of nutrients to grow. Porphyra in particular can uptake very high levels of nutrients. We propose that integration of Porphyra production with land based finfish farms can be both economically and ecologically attractive. The project will provide the Porphyra culture information needed to make this work.
Available from the National Sea Grant Library (use NHU number to search) or NH Sea Grant
- Carmona, R., G. Kraemer and C. Yarish. Exploring Northeast American and Asian species of Porphyra for use in an integrated finfish-algal aquaculture system. Aquaculture 252:54-65, 2006.
- Neefus, C., A. Mathieson, A. Klein, B. Teasdale, T. Bray and C. Yarish (2002). "Porphyra birdiae sp. nov." (Bangiales, Rhodophyta): A new species from the northwest Atlantic. Algae 17(4):203-216.
- Klein, A., A. Mathieson, C. Neefus, D. Cain, H. Taylor, B. Teasdale, A. West, E. Hehre, J. Brodie, C. Yarish and A. Wallace (2003). Identification of Northwestern Atlantic "Porphyra" (Bangiaceae, Bangiales) based on sequence variation in nuclear SSU and plastic rbcL genes. Phycologia 42(2):109-122.
- Chopin, T., A. Buschmann, C. Halling, M. Troell, N. Kautsky, A. Neori, G. Kraemer, J. Zertuche-Gonzalez, C. Yarish and C. Neefus (2001). Integrating seaweeds into marine aquaculture systems: a key towards sustainability. Journal of Phycology 37(6):975-986.
- Yarish, C., R. Wilkes, T. Chopin, X. Fei, A. Mathieson, A. Klein, C. Neefus, G. Mitman and I. Levine (1998). Domestication of indigenous "Porphyra" (nori) species for commercial cultivation in northeast America. World Aquaculture 29(4):26-31.
- Chung, I., Y.Kang, C. Yarish, G. Kraemer and J. Lee (2002). Application of seaweed cultivation to the bioremediation of nutrient-rich effluent. Algae 17(3):187-194.
- Kraemer, G., R. Carmona, T. Chopin, C. Neefus, X. Tang and C. Yarish (2005). Evaluation of the bioremediatory potential of several species of the red alga "Porphyra" using short-term measurements of nitrogen uptake as a rapid bioassay. Journal of Applied Phycology 16(6):489-497.
- Troell, M., C. Halling, A. Neori, T. Chopin, A. Buschmann, N. Kautsky and C. Yarish (2003). Integrated mariculture: asking the right questions. Aquaculture 226:69-90.
- Sahoo, D., X. Tang and C. Yarish (2002). "Porphyra"--the economic seaweed as a new experimental system. Current Science 83(11): 1313-1316.
- Kraemer, G., R. Carmona, C. Neefus, T. Chopin, S. Miller, X. Tang and C. Yarish (2004). Preliminary examination of the bioremediation and mariculture potential of a Northeast U.S.A. and an Asian species of "Porphyra." Bulletin Fish. Res. Agen. Supplement No. 1:77-82.
- Day, J. (2003). Effects of solar irradiance and ammonium on growth, nitrogen uptake and pigment content of "Porphyra umbilicalis" Kutzing, "P. linearis" Greville, "P. leucosticta" Thuret in LeJolis and "P. amplissima" Kjellman. Master's Thesis, University of New Hampshire.
- Sampath-Wiley, P. (2003). Physiological ecology of the red alga "Porphyra" (Rhodophyta, Bangiales). Master's Thesis, University of New Hampshire.
- Bray, T. (2003). A molecular and morphological survey of "Porphyra purpurea" (Roth) C. Agardh (Rhodophyta, Bangiales) in the northwest Atlantic. Master's Thesis, University of New Hampshire.
- Chopin, T., C. Yarish and G. Sharp (2007). Beyond the monospecific approach to animal aquaculture--the light of integrated multi-trophic aquaculture. Chapter 25 (pp. 447-458) in Ecological and Genetic Implications of Aquaculture Activities, Theresa Bert (ed.).
- McVey, J., R. Stickney, C. Yarish and T. Chopin (2002). Aquatic polyculture and balanced ecosystem management: new paradigms for seafood production. In: Responsible Marine Aquaculture Symposium, R.R. Stickney and J.P. McVey, eds., pp. 91-104, Orlando, Fla., January 22-23, 2001.
- Chopin, T., C. Yarish, C. Neefus, G. Kraemer, J. Zertuche-Gonzalez, E. Belyea and R. Carmona (2001). Aquaculture from a different angle: the seaweed perspective, and the rationale for promoting integrated aquaculture. In: Marine Aquaculture and the Environment: A Meeting for Stakeholders in the Northeast, proceedings of the Workshop, M.F. Tlusty, D.A. Bengston, H.O. Halvorson et al., eds., pp. 69-72, Boston, Mass., Jan. 11-13, 2001.
- Chopin, T., C. Yarish, G. Sharp, C. Neefus, G. Kraemer, J. Zertuche-Gonzalez, E. Belyea, R. Carmona, G. Saunders and C. Bates (2001). Development of integrated aquaculture systems for responsible coastal zone management. In: Aquaculture and its Role in Integrated Coastal Zone Management, proceedings of the Eurpoean Aquaculture Society International Workshop, pp. 77-80, Oostende, Belgium, April 19-21, 2001.
- Kraemer, G., R. Carmona, T. Chopin and C. Yarish (2000). Use of photosynthesis measurements in the choice of algal species for bioremediation. Fifth Biennial Long Island Sound Research Conference Proceedings 2000, pp. 113-117, Stamford, Conn., November 17-18, 2000.
- Carmona, R., L. Chanes, G. Kraemer, T. Chopin, C. Neefus, J. Zertuche-Gonzalez, R. Cooper and C. Yarish (2000). Nitrogen uptake by "Porphyra purpurea": its role as a nutrient scrubber. Fifth Biennial Long Island Sound Research Conference Proceedings 2000, pp. 87-91, Stamford, Conn., Nov. 17-18, 2000.
- Rawson Jr., M., C. Chen, R. Ji, M. Zhu, D. Wang, L. Wang, C. Yarish, J. Sullivan, T. Chopin and R. Carmona (2002). Understanding the interaction of extractive and fed aquaculture using ecosystem modelling. In: Responsible Marine Aquaculture Symposium, R.R. Stickney and J.P. McVey, eds., pp. 263-269, Orlando, Fla., January 22-23, 2001.