Development and Current Status of Abalone Aquaculture in Chile

Flores-Aguilar, Roberto; Gutierrez, A.; ELLWANGER, ANDRÉS; Searcy-Bernal, Ricardo

doi:10.2983/0730-8000(2007)26[705:dacsoa]2.0.co;2

Cited by 66 publications

(55 citation statements)

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“…Farms in the North (Regions III-V) generally use four wildharvested species namely Lessonia trabeculata, Lessonia berteroana, Lessonia spicata and Macrocystis pyrifera while those in the South in the vicinity of Chiloé rely predominantly on wild-harvested M. pyrifera, but utilise cultured Gracilaria chilensis during winter months (Flores-Aguilar et al, 2007) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

The effect of macroalgal, formulated and combination diets on growth, survival and feed utilisation in the red abalone Haliotis rufescens

2015

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Section: Introductionmentioning

confidence: 99%

The effect of macroalgal, formulated and combination diets on growth, survival and feed utilisation in the red abalone Haliotis rufescens

2015

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“…In the year 2006, Chile positioned itself as the fifth largest producer of abalones in the world with 304 ton. In 2009, 886 ton were produced (SERNAPESCA, 2009), demonstrating increased production and an industry that finds itself in expansion, with currently twenty-five companies related to the production of abalone in Chile (Flores-Aguilar et al, 2007). The majority of these installations are land-based cultures principally located in the northern region of the country and which take on seed production as well as the adult growth.…”

Section: Introductionmentioning

confidence: 99%

“…The majority of these installations are land-based cultures principally located in the northern region of the country and which take on seed production as well as the adult growth. Conversely, cultivation in the south is predominately sea-based, and, in some cases, provided with seeds produced in the north (Flores-Aguilar et al, 2007). In this way, there is a high expected potential for increasing abalone production in the future, based on cultivation site availability in the south of Chile as well as the expansion of the limits for sea-based cultivation in the north.…”

Section: Introductionmentioning

confidence: 99%

Nutrient uptake efficiency of Gracilaria chilensis and Ulva lactuca in an IMTA system with the red abalone Haliotis rufescens

Macchiavello

Bulboa

2014

lajar

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ABSTRACT. The current study examined the nutrient uptake efficiency of Ulva lactuca and Gracilaria chilensis cultivated in tanks associated with the wastewater of a land-based abalone culture. The experiments evaluated different seaweed stocking densities (1200, 1900, 2600, and 3200 g m -2 ) and water exchange rates (60, 80, 125, and 250 L h -1 ). The results show that both U. lactuca and G. chilensis were efficient in capturing and removing all of the inorganic nutrients originating from the abalone cultivation for all of the tested conditions. Furthermore, an annual experiment was performed with U. lactuca, cultivated at a stocking density of 1900 g m -2 and at a water exchanged rate of 125 L h -1, in order to evaluate seasonal changes in the nutrient uptake efficiency, productivity, and growth rate associated with the wastewater of a land-based abalone culture. The results confirmed high uptake efficiency during the entire year, equivalent to a 100% removal of the NH4, NO3, and PO4 produced by the land-based abalone culture. The growth rate and productivity of U. lactuca presented a marked seasonality, increasing from fall until summer and varying from 0.5 ± 0.2% to 2.6 ± 0.2% d -1 and 10 ± 6.1% to 73.6 ± 8.4% g m -2 d -1 for sustainable growth rate and productivity, respectively. We conclude that there is sufficient evidence that demonstrates the high possibility of changing the traditional monoculture system of abalone in Chile, to a sustainable integrated multi-trophic aquaculture system, generating positive environmental externalities, including the use of U. lactuca as a biofiltration unit. Keywords: Haliotis rufescens, abalone, multitrophic, seaweeds, Gracilaria, Ulva, aquaculture, Chile. Eficiencia de absorción de nutrientes de Gracilaria chilensis y Ulva lactuca en un sistema multitrófico integrado con el abalón rojo Haliotis rufescensRESUMEN. Se analizó la eficiencia de captación de nutrientes de Ulva lactuca y Gracilaria chilensis, cultivadas en estanques asociados a aguas de desecho proveniente de un cultivo del abalón rojo Haliotis rufescens. Los experimentos consideraron evaluar diferentes densidades de cultivo de algas (1200, 1900, 2600 and 3200 g m -2 ) y tasas de recambio de agua (60, 80, 125 y 250 L h -1 ). Los resultados mostraron que tanto U. lactuca como G. chilensis fueron eficientes en la captación de nutrientes inorgánicos provenientes del cultivo de abalón, en todas las condiciones probadas, con remoción total de los nutrientes aportados por el cultivo. De la misma forma se realizó un experimento anual con U. lactuca, siendo cultivada con densidad de 1900 g m -2 y tasa de recambio de agua de 125 L h -1 para evaluar cambios estacionales en la eficiencia de captación de nutrientes, así como en la productividad y tasa de crecimiento de U. lactuca. Los resultados confirmaron una alta eficiencia de captación de U. lactuca durante todo el año, equivalente a la remoción del 100% del NH4, NO3 y PO4 aportado por el cultivo de abalón. La tasa de crecimiento y la productividad de U. lac...

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“…The identification of higher value products and extracts from macroalgae will serve as an added argument in support of their production in IMTA systems. For instance, Macrocystis, a low-value genus harvested for its alginates, has recently been used in higher valued edible products, and as organic feed for abalone (Gutiérrez et al, 2006;Flores-Aguilar et al, 2007). The utilization of seaweeds for aquafeeds is an emergent research priority for the aquaculture industry, and this may act as an additional convincing point to the industry to deploy IMTA systems.…”

Section: Internal Economic Considerationsmentioning

confidence: 99%

State of the Art and Challenges for Offshore Integrated Multi-Trophic Aquaculture (IMTA)

et al. 2018

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By moving away from coastal waters and hence reducing pressure on nearshore ecosystems, offshore aquaculture can be seen as a possible step towards the large-scale expansion of marine food production. Integrated multi-trophic aquaculture (IMTA) in nearshore water bodies has received increasing attention and could therefore play a role in the transfer of aquaculture operations to offshore areas. IMTA holds scope for multi-use of offshore areas and can bring environmental benefits from making use of waste products and transforming these into valuable co-products. Furthermore, they may act as alternative marine production systems and provide scope for alternative income options for coastal communities, e.g., by acting as nodes for farm operation and maintenance requirements. This paper summarizes the current state of knowledge on the implications of the exposed nature of offshore and open ocean sites on the biological, technological and socio-economic performance of IMTA. Of particular interest is improving knowledge about resource flows between integrated species in hydrodynamic challenging conditions that characterize offshore waters.

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Development and Current Status of Abalone Aquaculture in Chile

Cited by 66 publications

References 0 publications

The effect of macroalgal, formulated and combination diets on growth, survival and feed utilisation in the red abalone Haliotis rufescens

The effect of macroalgal, formulated and combination diets on growth, survival and feed utilisation in the red abalone Haliotis rufescens

Nutrient uptake efficiency of Gracilaria chilensis and Ulva lactuca in an IMTA system with the red abalone Haliotis rufescens

State of the Art and Challenges for Offshore Integrated Multi-Trophic Aquaculture (IMTA)

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