Growth and nutrient uptake by Palmaria palmata integrated with Atlantic halibut in a land-based aquaculture system
Open accessAbstract
Palmaria palmata was integrated with Atlantic halibut Hippoglossus hippoglossus on a commercial farm for one year starting in November, with a temperature range of 0.4 to 19.1°C.The seaweed was grown in nine plastic mesh cages (each 1.25 m 3 volume) suspended in a concrete sump tank (46 m 3 ) in each of three recirculating systems.Two tanks received effluent water from tanks stocked with halibut, and the third received ambient seawater serving as a control.Thalli were tumbled by continuous aeration, and held under a constant photoperiod of 16 : 8 (L : D).Palmaria stocking density was 2.95 kg m -3 initially, increasing to 9.85 kg m -3 after a year.Specific growth rate was highest from April to June (8.0to 9.0°C), 1.1% d -1 in the halibut effluent and 0.8% d -1 in the control, but declined to zero or less than zero above 14°C.Total tissue nitrogen of Palmaria in effluent water was 4.2 to 4.4% DW from January to October, whereas tissue N in the control system declined to 3.0-3.6%DW from April to October.Tissue carbon was independent of seawater source at 39.9% DW.Estimated tank space required by Palmaria for 50% removal of the nitrogen excreted by 100 t of halibut during winter is about 29,000 to 38,000 m 2 , ten times the area required for halibut culture.Fifty percent removal of carbon from the same system requires 7,200 to 9,800 m 2 cultivation area.Integration of P. palmata with Atlantic halibut is feasible below 10°C, but is impractical during summer months due to disintegration of thalli associated with reproductive maturation.
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Algae can be used to eliminate inorganic nutrients such as phosphorus compounds, nitrogen, carbon dioxide, and other compounds used for their metabolism, thus decreasing negative impacts on the environment.
“In both aquaculture systems described, algae can be used as a solution to eliminate inorganic nutrients (phosphorus compounds, nitrogen, carbon dioxide, and other compounds used for their metabolism), thus decreasing the negative impacts on the environment [35,36,37,38].”
From The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value (2019) · cites this paper as [35]
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- Authors
- Corey, P., Kim, J. K., Duston, J., & Garbary, D. J.
- Affiliations
- Dalhousie University (CA)
- St. Francis Xavier University (CA)
- Corresponding author
- Kim, Jang K.
- Venue
- ALGAE
- Publisher
- The Korean Society of Phycology
- Published
- 2014-03-15
- Volume
- 29
- Issue
- 1
- Pages
- 35-45
- ISSN
- 1226-2617 (ISSN-L)
- OpenAlex
- W2161734405
- Cited by
- 54
- References
- 35
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 3 · 2023: 3 · 2022: 6 · 2021: 4 · 2020: 4 · 2019: 4 · 2018: 4 · 2017: 7 · 2016: 2 · 2015: 4 · 2014: 3
- FWCI
- 3.85
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- ALGAE (publishedVersion)
- Funders
- Natural Sciences and Engineering Research Council of Canada
- Topics
- Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal plant biology
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Innovations in Aquaponics and Hydroponics Systems
- Keywords
- Palmaria palmata, Atlantic halibut, Hippoglossus hippoglossus, seaweed cultivation, nutrient uptake, nitrogen removal, carbon dioxide removal, recirculating aquaculture system, land-based aquaculture, seaweed growth, temperature effects, effluent, reproductive maturation, stocking density
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