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| Registros recuperados: 28 | |
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| Drakeford, Ben; Pascoe, Sean. |
| Intensive aquaculture, especially the production of carnivorous species, requires artificial feeding. Fishmeal and oil are preferred to vegetable proteins, since marine proteins provide the essential nutrients required by farmed fish. Therefore, given the stagnant production of reduction species and the rapid increase in aquaculture production, fishmeal availability would pose a biological constraint on aquaculture contribution to world fish supplies in the future, unless alternative feed sources can be incorporated in diets. In this paper, the technical substitutability between fish and vegetable based feeds are assessed through the estimation of Morishima elasticities of substitution. These are derived from a meta-analysis production function. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Fishmeal; Meta-analysis; Salmon; Trout; Elasticity; Livestock Production/Industries; Q2. |
| Ano: 2005 |
URL: http://purl.umn.edu/56074 |
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| Pernet, Fabrice; Browman, Howard I. |
| Aquaculture now produces more seafood than wild capture fisheries and this production is expected to at least double by 2050. Representing almost half of global production, marine aquaculture will contribute to sustainably feeding the growing humanity. However, climate change will undoubtedly challenge the future growth of marine aquaculture. Temperature and sea-level rise, shifts in precipitation, freshening from glacier melt, changing ocean productivity, and circulation patterns, increasing occurrence of extreme climatic events, eutrophication, and ocean acidification are all stressors that will influence marine aquaculture. The objective of this themed article set was to bring together contributions on the broad theme of the potential impacts,... |
| Tipo: Text |
Palavras-chave: Adaptation; Bivalve; Blue economy; Carbon; Climate change; Marine diseases; Mitigation; Ocean acidification; Plasticity; Salmon; Seaweed; Sustainability. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00682/79406/81951.pdf |
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| Castro Sánchez,Rodrigo; Bustos Obregón,Eduardo; Rojas Rauco,Mariana. |
| Vertebral Column Deformity (VCD) is a common pathology in Chilean salmon farms, lowering the quality and commercialization of the product. Hypoxia has been related to other musculoskeletal deformities, but not to VCD. This work analyzes the morphology of the vertebral column of Salmo salar alevins, cultured under hypoxic conditions (60% O2 saturation in the water tanks) for different time periods after hatching (2, 4, 6 and 8 days). They are compared with their normoxic controls (100% O2 saturation). Using histological (H/E), and morphometric techniques, it was found that the time of exposure to hypoxia is inversely proportional to the body length, notochordal diameter and thickness of its sheath. The organic response to hypoxia was quantified by... |
| Tipo: Journal article |
Palavras-chave: Vertebral Column; Deformity; Hypoxia; Salmon. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400036 |
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| Registros recuperados: 28 | |
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