Acuicultura y salud pública: La expansión de la difilobotriasis en Chile y el mundo

Cabello, Felipe C.

doi:10.4067/s0034-98872007000800016

Cited by 17 publications

(10 citation statements)

References 21 publications

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“…Specific MHC alleles seem to confer resistance to a number of salmonid diseases (Langefors et al 2001;Palti et al 2001;Slierendrecht et al 2001;Lohm et al 2002;Grimholt et al 2003), and disease resistance might explain better some of the MHC changes observed in our study. Salmonids in Chile are exposed to a suite of novel pathogens and diseases (Cabello 2007;Burridge et al 2010;Torres et al 2010) and some private alleles were clustered together, suggesting potential functional similarity (Fig. S2).…”

Section: Discussionmentioning

confidence: 99%

Less can be more: loss of MHC functional diversity can reflect adaptation to novel conditions during fish invasions

Monzón‐Argüello

Leániz

Gajardo

et al. 2013

Ecology and Evolution

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The ability of invasive species to adapt to novel conditions depends on population size and environmental mismatch, but also on genetic variation. Away from their native range, invasive species confronted with novel selective pressures may display different levels of neutral versus functional genetic variation. However, the majority of invasion studies have only examined genetic variation at neutral markers, which may reveal little about how invaders adapt to novel environments. Salmonids are good model systems to examine adaptation to novel pressures because they have been translocated all over the world and represent major threats to freshwater biodiversity in the Southern Hemisphere, where they have become invasive. We examined patterns of genetic differentiation at seven putatively neutral (microsatellites) loci and one immune-related major histocompatibility complex (MHC class II-β) locus among introduced rainbow trout living in captivity (farmed) or under natural conditions (naturalized) in Chilean Patagonia. A significant positive association was found between differentiation at neutral and functional markers, highlighting the role of neutral evolutionary forces in shaping genetic variation at immune-related genes in salmonids. However, functional (MHC) genetic diversity (but not microsatellite diversity) decreased with time spent in the wild since introduction, suggesting that there was selection against alleles associated with captive rearing of donor populations that do not provide an advantage in the wild. Thus, although high genetic diversity may initially enhance fitness in translocated populations, it does not necessarily reflect invasion success, as adaptation to novel conditions may result in rapid loss of functional MHC diversity.

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Section: Discussionmentioning

confidence: 99%

Less can be more: loss of MHC functional diversity can reflect adaptation to novel conditions during fish invasions

Monzón‐Argüello

Leániz

Gajardo

et al. 2013

Ecology and Evolution

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“…It might spread pathogens such as the ISA virus and sea lice to the native biota (Sepúlveda et al . ; Cabello ,), and escaped salmons could predate and compete with other species (Soto et al . ; Buschmann et al .…”

Section: A Brief Description Of the Structure And Socio‐economic Relementioning

confidence: 99%

Main issues and challenges for sustainable development of salmon farming in Chile: a socio‐economic perspective

Chávez

Dresdner

Figueroa

et al. 2019

Reviews in Aquaculture

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We identify and discuss the main problems and challenges in sustainable development faced by the salmon farming industry in Chile from a socio‐economic perspective. This perspective is broad, in that it includes how the industry interacts with society and the environment, but also limited, in that it only assesses the impact on different social groups and economic agents. First, we present a brief description of the structure and socio‐economic relevance of salmon farming in the country. Second, we identify and discuss the primary current issues in the sustainable development of salmon farming in Chile. Third, we identify and discuss the challenges for developing sustainable salmon farming in Chile, including regulatory design and sectoral management, options for future expansion of the industry, responses and adjustments in the face of climate change and climatic variability, and the proper handling and growth of public‐private cooperation and goods governance.

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“…have been found in cultured Atlantic salmon, rainbow trout, and other trouts in the United States, Scotland, Ireland, Finland, Russia, and Chile (Cabello, 2007;Lima dos Santos and Howgate, 2011). However, salmon smolts are occasionally reared in cages in freshwater lakes prior to the marine grow-out phase.…”

Section: Speciesmentioning

confidence: 99%

Transmission dynamics of foodborne parasites in fish and shellfish

Jones

2015

Foodborne Parasites in the Food Supply Web

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Acuicultura y salud pública: La expansión de la difilobotriasis en Chile y el mundo

Abstract: (Rev Méd Chile 2007; 135: 1064-71

Cited by 17 publications

References 21 publications

Less can be more: loss of MHC functional diversity can reflect adaptation to novel conditions during fish invasions

Less can be more: loss of MHC functional diversity can reflect adaptation to novel conditions during fish invasions

Main issues and challenges for sustainable development of salmon farming in Chile: a socio‐economic perspective

Transmission dynamics of foodborne parasites in fish and shellfish

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