Genetic impacts of a commercial aquaculture lease on adjacent oyster populations

Varney, Robin L.; Watts, Jessica C.; Wilbur, Ami E.

doi:10.1016/j.aquaculture.2018.03.060

Cited by 7 publications

(5 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…123 , such that the effects of introgression from farm-reared animals is rapidly diluted. Such introgression may even be beneficial in some species, for example, bivalve shellfish, by contributing to natural recruitment and adding genetic variation to wild populations 124,125 . By contrast, freshwater and anadromous species are characterized by fairly small effective population sizes 126 , and gene flow can be heavily modified (or blocked) 127,128 .…”

Section: [H2] Interaction Between Farmed and Wild Animalsmentioning

confidence: 99%

Harnessing genomics to fast-track genetic improvement in aquaculture

et al. 2020

View full text Add to dashboard Cite

Aquaculture is the fastest growing farmed food sector and will soon become the primary source of fish and shellfish for human diets. In contrast to crops and livestock, production is derived from numerous, exceptionally diverse species that are typically in the early stages of domestication. Genetic improvement of production traits via well-designed, managed breeding programmes has great potential to help meet the rising seafood demand driven by human population growth. Supported by continuous advances in sequencing and bioinformatics, genomics is increasingly being applied across the broad range of aquaculture species and at all stages of the domestication process to optimize selective breeding. In the future, combining genomic selection with biotechnological innovations, such as genome editing and surrogate broodstock technologies, may further expedite genetic improvement in aquaculture.

show abstract

Section: [H2] Interaction Between Farmed and Wild Animalsmentioning

confidence: 99%

Harnessing genomics to fast-track genetic improvement in aquaculture

et al. 2020

View full text Add to dashboard Cite

show abstract

“…In particular for wild freshwater and anadromous fish such as salmon with relatively small effective population sizes, gene pools found in nature can be significantly affected by inflow of genes from farmed animals (Hindar et al 2006;Glover et al 2017). Conversely, it has been suggested that interbreeding with captive native oyster stock may benefit sparse wild populations by contributing to genetic variation (Varney et al 2018;Hornick & Plough 2019). Besides preventing introgression effects of escapees from farms, sterility can also avoid early maturation during on-growing, which may negatively affect growth, welfare and product quality leading to harvest downgrades.…”

Section: Sterility and Gender Manipulationmentioning

confidence: 99%

“…Conversely, it has been suggested that interbreeding with captive native oyster stock may benefit sparse wild populations by contributing to genetic variation (Varney et al . 2018; Hornick & Plough 2019). Besides preventing introgression effects of escapees from farms, sterility can also avoid early maturation during on‐growing, which may negatively affect growth, welfare and product quality leading to harvest downgrades.…”

Section: Sterility and Gender Manipulationmentioning

confidence: 99%

Genetic improvement technologies to support the sustainable growth of UK aquaculture

Regan

Bean

Ellis

et al. 2021

Reviews in Aquaculture

View full text Add to dashboard Cite

While the UK is the fourth largest aquaculture producer in Europe by volume, it is the second largest by value with an annual first sale value of around £1 billion. Over 90% of this value is from Atlantic salmon farmed in Scotland, but other finfish and shellfish aquaculture species are important to several UK regions. In this review, we describe the state of the art in UK aquaculture breeding and stock supply, and how innovation in genetics technologies can help achieve the Scottish Government's ambitious target of doubling its aquaculture industry by 2030. Particular attention is given to the four most important UK aquaculture species: Atlantic salmon, rainbow trout, blue mussel and Pacific oyster, and we contrast the highly variable level of selective breeding and genomics technologies used in these sectors. A major factor in the success of Atlantic salmon farming has been large-scale investment in modern breeding programmes, including family selection programmes and genomic selection. This has proven cost-effective at scale, leading to improved production efficiency and reduction of some infectious diseases. We discuss the feasibility of applying similar technologies to the UK shellfish sectors, to ensure consistent and robust spat supply and begin trait selection. Furthermore, we discuss species-specific application of modern breeding technologies in a global context, and the future potential of genomics and genome editing technologies to improve commercially desirable traits. Increased adoption of modern breeding technologies will assist UK aquaculture industries to meet the challenges for sustainable expansion, and remain competitive in a global market.

show abstract

“…Unprecedented rates of species introductions and pest invasions in the marine environment, alongside accidental and deliberate releases from hatchery environments, have been another major contributor to genetic diversity loss in native biota due to competition, predation, infection, or introgression effects (Glover et al, 2017; Laikre et al, 2010; Olden et al, 2004; Teagle & Smale, 2018). The translocation of non‐native species and populations in the shellfish aquaculture industry for instance has resulted in widespread hybridization, impacting the genetic diversity of natural wild populations, as well as impacting the physiology of farmed populations (Gardner et al, 2016; Michalek et al, 2016; Šegvić‐Bubić et al, 2020; Varney et al, 2018). Aquaculture escapees, as well as hatchery‐bred populations released for marine stock enhancement projects, have likewise had widespread effects on the genetics of wild populations, including changes in allele frequencies and population structure, hybridization and introgression, and loss of genetic diversity (Glover et al, 2017; Kitada, 2018).…”

Section: Impacts On Genetic Diversity In the Marine Environmentmentioning

confidence: 99%

Charting a course for genetic diversity in the UN Decade of Ocean Science

Thomson

Archer

Coleman

et al. 2021

Evolutionary Applications

View full text Add to dashboard Cite

The health of the world's oceans is intrinsically linked to the biodiversity of the ecosystems they sustain. The importance of protecting and maintaining ocean biodiversity has been affirmed through the setting of the UN Sustainable Development Goal 14 to conserve and sustainably use the ocean for society's continuing needs. The decade beginning 2021–2030 has additionally been declared as the UN Decade of Ocean Science for Sustainable Development. This program aims to maximize the benefits of ocean science to the management, conservation, and sustainable development of the marine environment by facilitating communication and cooperation at the science–policy interface. A central principle of the program is the conservation of species and ecosystem components of biodiversity. However, a significant omission from the draft version of the Decade of Ocean Science Implementation Plan is the acknowledgment of the importance of monitoring and maintaining genetic biodiversity within species. In this paper, we emphasize the importance of genetic diversity to adaptive capacity, evolutionary potential, community function, and resilience within populations, as well as highlighting some of the major threats to genetic diversity in the marine environment from direct human impacts and the effects of global climate change. We then highlight the significance of ocean genetic diversity to a diverse range of socioeconomic factors in the marine environment, including marine industries, welfare and leisure pursuits, coastal communities, and wider society. Genetic biodiversity in the ocean, and its monitoring and maintenance, is then discussed with respect to its integral role in the successful realization of the 2030 vision for the Decade of Ocean Science. Finally, we suggest how ocean genetic diversity might be better integrated into biodiversity management practices through the continued interaction between environmental managers and scientists, as well as through key leverage points in industry requirements for Blue Capital financing and social responsibility.

show abstract

Genetic impacts of a commercial aquaculture lease on adjacent oyster populations

Cited by 7 publications

References 24 publications

Harnessing genomics to fast-track genetic improvement in aquaculture

Harnessing genomics to fast-track genetic improvement in aquaculture

Genetic improvement technologies to support the sustainable growth of UK aquaculture

Charting a course for genetic diversity in the UN Decade of Ocean Science

Contact Info

Product

Resources

About