Pelletier Nathan, Tyedmers Peter
School for Resource and Environmental Studies, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 4R2.
Environ Manage. 2008 Nov;42(5):918-31. doi: 10.1007/s00267-008-9148-9. Epub 2008 May 28.
It is widely accepted that improving the sustainability of seafood production requires efforts to reverse declines in global fisheries due to overfishing and to reduce the impacts to host ecosystems from fishing and aquaculture production technologies. Reflective of on-going dialogue amongst participants in an international research project applying Life Cycle Assessment to better understand and manage global salmon production systems, we argue here that such efforts must also address the wider range of biophysical, ecological, and socioeconomic impacts stemming from the material and energetic throughput associated with these industries. This is of particular relevance given the interconnectivity of global environmental change, ocean health, and the viability of seafood production in both fisheries and aquaculture. Although the growing popularity of numerous ecolabeling, certification, and consumer education programs may be making headway in influencing Western consumer perceptions of the relative sustainability of alternative seafood products, we also posit that the efficacy of these initiatives in furthering sustainability objectives is compromised by the use of incomplete criteria. An emerging body of Life Cycle Assessment research of fisheries and aquaculture provides valuable insights into the biophysical dimensions of environmental performance in alternative seafood production and consumption systems, and should be used to inform a more holistic approach to labeling, certifying, and educating for sustainability in seafood production. More research, however, must be undertaken to develop novel techniques for incorporating other critical dimensions, in particular, socioeconomic considerations, into our sustainability decision-making.
人们普遍认为,提高海产品生产的可持续性需要努力扭转因过度捕捞导致的全球渔业衰退,并减少捕捞和水产养殖生产技术对宿主生态系统的影响。作为一个国际研究项目的参与者之间正在进行的对话的体现,该项目应用生命周期评估来更好地理解和管理全球鲑鱼生产系统,我们在此认为,这些努力还必须解决与这些行业相关的物质和能量流通所产生的更广泛的生物物理、生态和社会经济影响。鉴于全球环境变化、海洋健康以及渔业和水产养殖中海产品生产的可行性之间的相互联系,这一点尤为重要。尽管众多生态标签、认证和消费者教育项目越来越受欢迎,可能正在影响西方消费者对替代海产品相对可持续性的认知方面取得进展,但我们也认为,这些举措在推进可持续性目标方面的效力因使用不完整的标准而受到损害。新兴的渔业和水产养殖生命周期评估研究为替代海产品生产和消费系统中环境绩效的生物物理维度提供了宝贵的见解,应用于为海产品生产的可持续性标签、认证和教育提供更全面的方法。然而,必须进行更多研究,以开发新的技术,将其他关键维度,特别是社会经济因素纳入我们的可持续性决策。