Impacts of marine heat extremes on bivalves

Frontiers in Marine Science, Год журнала: 2023, Номер 10

Опубликована: Июнь 8, 2023

As the global ocean continues to experience consequences of an increase in frequency and intensity heat waves, trend is expected persist into 21st century, with a projected tripling waves by 2040. This phenomenon poses significant threat marine ecosystems survival organisms, including ecologically economically vital bivalves. Bivalves are vulnerable harm from stress at various levels biological organization, their growth can be negatively impacted high temperatures, potentially leading mass mortalities posing ecosystem quality food security. In light these concerns, this review aims provide comprehensive examination effects on It summarizes physiological biochemical changes that bivalves undergo response extreme events offers overview strategies they employ mitigate impacts. A better understanding underlying mechanisms bivalve responses crucial order fully appreciate impact organisms. synthesizes current knowledge highlights importance further research area. By providing during use its impact, support development more effective approaches minimize

Язык: Английский

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Genetic improvement of oysters: Current status, challenges, and prospects

Reviews in Aquaculture, Год журнала: 2023, Номер 16(2), С. 796 - 817

Опубликована: Окт. 30, 2023

Abstract Oysters are one of the most commercially important shellfish species and have been cultured for thousands years. Oyster aquaculture supports major industries in many countries. Over last few decades, oyster breeding developed rapidly to meet continually growing demand. Many researchers made significant efforts toward genetic improvement traits oysters. Some strains with fast‐growing, disease‐resistant, stable shell‐colours through selective breeding. hybrid varieties by crossing different geographical populations or cultivated strains. Several hybrids exhibit considerable variation improved productive performance. Additionally, polyploid induction technologies applied industry, which provides a useful tool performance containment stocks. At present, development molecular also great opportunity improvement. These advances quality oysters, brought economic benefits, conducive sustainability production. Nonetheless, there still some limitations obstacles breeding, such as infectious diseases, summer mortality, conservation germplasm resources, environmental contamination, climate change. The present review an overview current status, challenges, prospects

Язык: Английский

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Effects of intensive oyster farming on nitrogen speciation in surface sediments from a typical subtropical mariculture bay

The Science of The Total Environment, Год журнала: 2024, Номер 916, С. 170092 - 170092

Опубликована: Янв. 19, 2024

Язык: Английский

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Environmental and social framework to protect marine bivalves under extreme weather events

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174471 - 174471

Опубликована: Июль 2, 2024

Язык: Английский

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Socioecological factors related to aquaculture introductions and production of Pacific oysters (Crassostrea gigas) worldwide

Reviews in Aquaculture, Год журнала: 2021, Номер 14(2), С. 613 - 629

Опубликована: Сен. 23, 2021

Abstract Pacific oysters ( Crassostrea gigas ) have been introduced worldwide for aquaculture, which can benefit food sovereignty and economic development; however, established non‐native populations may present risks local organisms habitats. We reviewed the documented introductions of C. by country to evaluate factors related introduction, establishment production, determine impacts feral populations. To date, has in 64 countries 10 territories, 32 contributes cupped oyster production 36 (additionally, three native range countries). Oysters were more likely be establish higher‐latitude countries, but factor per capita Gross Domestic Product (GDPpc) served as a stronger explanatory variable than latitude introduction. Earlier introduction use extended periods not just trials, further increased establishment. Commercial with coastline length when present, contrast establishment, declined at higher latitude. Effects studied 11 spanning from negative facilitative expected an ecosystem engineer, while reaching levels concern warranting removal coastlines UK, Norway, Sweden Australia South Africa. The GDPpc analyses revealed widespread inequity terms low investment aquaculture poorer richer able invest only also studies environmental oysters.

Язык: Английский

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Survival and growth of triploid eastern oysters, Crassostrea virginica, produced from wild diploids collected from low-salinity areas

Aquaculture, Год журнала: 2022, Номер 564, С. 739032 - 739032

Опубликована: Ноя. 6, 2022

Язык: Английский

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Potential of genomic selection for growth, meat content and colour traits in mixed-family breeding designs for the Pacific oyster Crassostrea gigas

Aquaculture, Год журнала: 2023, Номер 576, С. 739878 - 739878

Опубликована: Июль 8, 2023

Язык: Английский

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Consequences of domestication in eastern oyster: Insights from whole genomic analyses

Evolutionary Applications, Год журнала: 2024, Номер 17(6)

Опубликована: Май 29, 2024

Selective breeding for production traits has yielded relatively rapid successes with high-fecundity aquaculture species. Discovering the genetic changes associated selection is an important goal understanding adaptation and can also facilitate better predictions about likely fitness of selected strains if they escape farms. Here, we hypothesize domestication as a change induced by inadvertent in culture. Our premise that standardized culture protocols generate parallel effects across independent strains. Using eastern oyster model newly developed 600K SNP array, this study tested multiple lines compared their progenitor wild populations. A single contrast was made between pooled (1-17 generations culture) all samples combined. Population structure analysis indicated rank order levels differentiation [wild - wild] < cultured] [cultured cultured]. genome scan to captive environment applied two methodologically distinct outlier tests versus strain identified total 1174 candidate SNPs. Contrasting revealed early evolutionary consequences terms genomic differentiation, standing diversity, effective population size, relatedness, runs homozygosity profiles, genome-wide linkage disequilibrium patterns. Random Forest used identify 37 SNPs had greatest discriminatory power bulked oysters. The were genes enriched cytoskeletal functions, hinting at possible under during larval or pediveliger setting high density. This documents stemming from hatchery-based cultivation oysters, identifies loci responding among strains, provides potentially useful resources monitoring interbreeding farm

Язык: Английский

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The Roles of Chemical Cues in the Life Cycle of Bivalves: Spawning, Settlement, and Metamorphosis

Reviews in Aquaculture, Год журнала: 2025, Номер 17(1)

Опубликована: Янв. 1, 2025

ABSTRACT Spawning, settlement, and metamorphosis represent the most challenging events for hatchery bivalve production. To enhance aquaculture, hatcheries have relied on a range of chemical compounds to induce these biological processes. Yet, despite apparent importance cues, there is little knowledge chemosensory systems role communication in bivalves. This review aims compile existing chemicals used spawning improve settlement some economically important A lack recent studies regarding this topic has resulted stagnation development new approaches products use aquaculture. explores natural cues how they act environment, efforts made by hatcheries, through synthetic inducers, optimize production overcome challenges associated with spawning, metamorphosis. Furthermore, it discusses current nature spawning‐inducing pheromones. The synthesis pheromones induction may aquaculture efficiency. Nevertheless, more research needed fully understand

Язык: Английский

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Mixed‐Age Releases of the Endangered Pinto Abalone (Haliotis kamtschatkana) to Maximize Hatchery Production and Survival in the Wild

Aquatic Conservation Marine and Freshwater Ecosystems, Год журнала: 2025, Номер 35(2)

Опубликована: Фев. 1, 2025

ABSTRACT The Washington State recovery programme for endangered pinto abalone ( Haliotis kamtschatkana ) relies on captive breeding. From 2009 to 2017, juveniles from wild parent crosses were released after an average of 20 months in the hatchery (average size 24 mm), and results a mark‐recapture experiment suggested that size‐at‐release was not important survival. pilot study at 9‐month age survived similar rates previous releases but there significant cost growth survival 14‐month releases. 2019 2022, 7000 mixed‐age different subset restoration sites each year. Larger individuals (> 5 mm) family 9 (first years), with remainder held be (second years). resulting successful 9‐ 32‐month 0.6%–6.1% first years 0.6%–4.5% second years. In two out three trials, little or no evidence reduced as result releasing almost year early. When combined savings rearing animals shorter duration, possible benefits growth, reduction acclimatization selection, better rotation resources culture space mixing 2 genetic into one release, we suggest are most efficient way forward conservation abalone.

Язык: Английский

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