Refocusing Seafood Sustainability as a Journey Using the Law of the Minimum

Tlusty, Michael F.; Tausig, Heather; Taranovski, Tania; Jeans, Meghan; Thompson, Matt; Cho, Michelle; Eppling, Michael; Clermont, Jason; Goldstein, Jennifer; Fitzsimons, Elizabeth

doi:10.3390/su4092038

Cited by 16 publications

(15 citation statements)

References 34 publications

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“…Sustainability is not judged merely at a species level, but on the system that comprises the species along with vagaries of how that species is produced/harvested (Tlusty et al . 2012), processed, and distributed to market (Tlusty and Lagueux 2009).…”

Section: Peer‐reviewed Lettermentioning

confidence: 99%

Trophic level links seafood sustainability to human health

Tlusty¹

2013

Frontiers in Ecol & Environ

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Section: Peer‐reviewed Lettermentioning

confidence: 99%

Trophic level links seafood sustainability to human health

Tlusty¹

2013

Frontiers in Ecol & Environ

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“…Because of this, there is a current acknowledgement that any increase in aquaculture, as with all food production, needs to occur with attention to sustainability objectives (Ward ; Tlusty ; Tlusty et al . ).…”

Section: Introductionmentioning

confidence: 97%

Reviewing GAA‐BAP shrimp farm data to determine whether certification lessens environmental impacts

Tlusty

Tausig

2014

Reviews in Aquaculture

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The sustainable seafood movement is over a decade old. It has done much to raise awareness regarding improper production and harvest of seafood and to derive a course to lessen the deleterious environmental impacts of this industry. Certification has been a key tool, yet few programmes have demonstrated comprehensive improvements. Here, the degree of aquaculture improvement through the implementation of certification was assessed using data from the Global Aquaculture Alliance (GAA) Best Aquaculture Practice (BAP) shrimp standard. An examination of 323 audits from 192 farms spanning 2005–2012 showed that overall, 35% of the farms were conditionally certified, indicating they had to improve prior to being certified. This version of the BAP shrimp farm audit had both compliance and scored components. Out of the 28 critical points, only six were in full compliance by all farms during all audits and hence provided no value to determine farm performance. Farms that passed the audit without compliance issues had a greater aggregate scored value than those that farms with noncompliances. However, performance‐based metrics exhibited few differences between the compliant and noncompliant farms. Overall, issues pertaining to water quality were a leading cause of farms being scored as noncompliant, although they were distributed among the seven different water quality parameters. Certification systems have not been designed specifically to demonstrate adherence to continual improvement. Because of this, and the multitude of factors with which a fully compliant farm needs to acquiesce, the specific means by which certification improves aquaculture and the overall value of improvement will remain challenging to demonstrate.

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“…It is not only practices but also values and objectives that have to be modified and it therefore requires a continuous improvement process, starting from sustainable development values or principles that are deemed to be of the highest priority for producers and stakeholders. Sustainability, as it was conceived and addressed in the work carried out under the Evaluation of aquaculture system sustainability (EVAD) project from 2005 to 2010 (Rey-Valette et al 2008), is similar to that defined by Tlusty et al (2012), that is, a continuous process, a 'journey' rather than a destination in terms of a sustainable, final and ideal aquaculture product.…”

Section: Introductionmentioning

confidence: 98%

Assessing aquaculture sustainability: a comparative methodology

Lazard

Rey‐Valette

Aubin

et al. 2014

International Journal of Sustainable Development & World Ec

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Faculty of Natural Sciences Institute of Aquaculture Doctor of Philosophy By-products and mortalities from aquaculture have often posed significant challenges to the industry because of their low value resulting in high costs and environmental impact from their disposal. However increasing interest is being expressed in their utilisation to add value to the aquaculture industry and provide synergies with industries which had previously been in competition with aquaculture. Current and prospective processing by-product and farm mortality utilisation strategies were reviewed along with regulations and standards which aim to control their use and protect against human and animal health hazards. The role of aquaculture and fishery by-products in the supply of fishmeal was investigated and it was found that both sectors had the potential to contribute to increasing global supply. There were significant quantities of processing by-products identified which could be directed to fishmeal manufacture but there were also significant amounts of fish production which were not being processed in some regions and could also add to supplies. Processing by-products from aquaculture species often exceed 50% of the production by mass and therefore their efficient utilisation is of significant importance to the overall performance of the value chain. Their utilisation ii strategies are diverse and in some circumstances offer the possibility to add significant value. Life Cycle Assessment (LCA) is increasingly being used to inform decision makers and consumers about the environmental performance of goods and services to make choices on best practices and informative decisions on purchasing choices. Current methodology in LCA was critiqued and developed to be used for identifying disproportionate impacts from by-product industries and comparative assessment of the eco-efficiency of value chains from Thai shrimp, Vietnamese Pangasius catfish and Scottish salmon aquaculture. New LCA methodology was developed assessing the eco-efficiency of co-products as a whole and in relation to a tonne of edible yield. Measuring the impact of the by-product industry in relation to their edible yield gave different results to measuring their eco-efficiency between the three study species. It was found that the Thai shrimp value chain was the most eco-efficient when by-products were directed to chitosan and hydrolysate manufacture, but production of the salmon was the least impacting between the species in terms of edible yield. Pangasius was the most environmentally impacting of the three species value chains using both methods. It was also found that the upstream impacts of fish and shrimp production, especially feed manufacture, contributed most to the environmental impact in most circumstances, using both economic and mass allocation. Although the methodology produced interesting results, there were some drawbacks and the data sets also had several gaps which led to some assumptions, which could have skewed the results and interpretation. The cau...

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Refocusing Seafood Sustainability as a Journey Using the Law of the Minimum

Cited by 16 publications

References 34 publications

Trophic level links seafood sustainability to human health

Trophic level links seafood sustainability to human health

Reviewing GAA‐BAP shrimp farm data to determine whether certification lessens environmental impacts

Assessing aquaculture sustainability: a comparative methodology

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