Ingestion rate, absorption efficiency, oxygen consumption, and fecal production in green sea urchins (Strongylocentrotus droebachiensis) fed waste from sablefish (Anoplopoma fimbria) culture

Orr, Lindsay C.; Curtis, Daniel L.; Cross, Stephen F.; Gurney‐Smith, Helen; Shanks, Alynn; Pearce, Christopher M.

doi:10.1016/j.aquaculture.2013.11.030

Cited by 21 publications

(10 citation statements)

References 44 publications

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“…Whether using neighboring natural communities to aid in dealing with effluents from nearby aquaculture is a good management strategy or acceptable to society should be open to debate. Our findings D r a f t also lend support to recommendations for rearing California sea cucumber (Hannah et al 2013) and green sea urchin (Orr et al 2014) alongside finfish in a multi-trophic setting. Last, our analysis represents, to our knowledge, the first use of circular statistics to explore and characterize seasonal dynamics of food webs in relation to multi-trophic aquaculture, as well as other studies on spatial subsidies in near-shore ecosystems.…”

Section: R a F T 2012)supporting

confidence: 76%

Seasonal dynamics in a nearshore isotopic niche and spatial subsidies from multi-trophic aquaculture

Weldrick

2017

Can. J. Fish. Aquat. Sci.

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A poorly understood food web dynamic concerns possible seasonal variation in spatial subsidies associated with multi-trophic aquaculture and their effects on extractive and naturally occurring organisms. We used the stable isotopes δ13C and δ15N and circular statistics to investigate niche overlap across a year-long period at an experimental multi-trophic aquaculture facility in British Columbia, Canada. A two-source mixing model revealed that particulate organic matter was the most important food source for all sample invertebrates (mean range 40%–98%) compared with farm effluent (mean range 3%–35%). There were significant month-to-month changes in δ13C and δ15N for all species except for the brooding transparent tunicate (Corella inflata). We did not detect any directionality for the entire community, but did identify variable directional shifts for each species, suggesting resource partitioning driven by competition and (or) morphology-based differences in feeding strategies. This was further supported by seasonal variation in inter- and intraspecific isotopic niche widths. Isotopic niche overlap among co-occurring invertebrates appeared to be stronger during winter and summer than autumn months. Our study provides valuable insights on the role of multi-trophic derived effluent on a nearshore marine community composed of both natural and cultured species within the same feeding guild.

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Section: R a F T 2012)supporting

confidence: 76%

Seasonal dynamics in a nearshore isotopic niche and spatial subsidies from multi-trophic aquaculture

Weldrick

2017

Can. J. Fish. Aquat. Sci.

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“…A study recently demonstrated that green sea urchins (Strongylocentrotus droebachiensis) actively ingest and absorb organic material from the waste produced by sablefish (Anoplopoma fimbria) culture. Further research was recommended to determine the effect of the sablefish waste diet on green sea urchin survivorship, growth, and gonad quality for urchin production [18]. Multi-species production in an IMTA system must be optimized and better utilized in the future to increase productivity and improve sustainability.…”

Section: Feeding and The Environmentmentioning

confidence: 99%

Fish Nutrition and Current Issues in Aquaculture: The Balance in Providing Safe and Nutritious Seafood, in an Environmentally Sustainable Manner

Hixson¹

2014

J Aquac Res Development

109

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Global aquaculture production has increased in recent years and it is predicted that aquaculture will provide the most reliable supply of seafood in the future. However, there are many controversial issues in aquaculture regarding food safety, nutrition, and sustainability; many of which are directly related to the nutrition and feeds for farmed fish. These nutrition-related issues must be considered in order to achieve balance in safe and nutritious food production and sustainability in aquaculture. This review highlights recent studies and discusses new and innovative aspects in fish nutrition. Some issues in the area of fish nutrition require consideration and improvement, such as: feed and nutrient efficiency, overfeeding and waste, fish meal and fish oil replacements, fish health, biotechnology, and human health concerns. The findings reviewed in this manuscript demonstrate promise toward improvement of the aquaculture industry through nutrition. This review is an update in fish nutrition research, and provides insight on the progression and evolution of this field in order to meet the needs of the industry with the purpose to achieve a balance in seafood production and environmental sustainability. The outcome of this review encourages the use of biotechnology as a tool to meet seafood production and environmental sustainability, in order to ensure global food security in the future and to improve our resource use.

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“…5 coasts of Canada (Orr et al, 2014). The principle of IMTA is to introduce into fish and shellfish farming various extractive species that can utilize the waste of other organisms while providing a secondary cash crop (Chopin et al, 2012).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Co-culturing green sea urchins (Strongylocentrotus droebachiensis) with mussels (Mytilus spp.) to control biofouling at an integrated multi-trophic aquaculture site

2016

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Ingestion rate, absorption efficiency, oxygen consumption, and fecal production in green sea urchins (Strongylocentrotus droebachiensis) fed waste from sablefish (Anoplopoma fimbria) culture

Cited by 21 publications

References 44 publications

Seasonal dynamics in a nearshore isotopic niche and spatial subsidies from multi-trophic aquaculture

Seasonal dynamics in a nearshore isotopic niche and spatial subsidies from multi-trophic aquaculture

Fish Nutrition and Current Issues in Aquaculture: The Balance in Providing Safe and Nutritious Seafood, in an Environmentally Sustainable Manner

Co-culturing green sea urchins (Strongylocentrotus droebachiensis) with mussels (Mytilus spp.) to control biofouling at an integrated multi-trophic aquaculture site

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