Fish and Food Security in Small-Scale Fisheries

Loring, Philip A.; Fazzino, David; Agapito, Melinda; Chuenpagdee, Ratana; Gannon, Glenna; Isaacs, Moenieba

doi:10.1007/978-3-319-94938-3_4

Cited by 43 publications

(27 citation statements)

References 51 publications

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“…We identified two primary factors influencing ASNs resilience: structural factors and response diversity. Structural factors are generally fixed or hard-to-change features of society, such as infrastructure and policy, which help or hinder people in their ability to enact diverse responses (Loring et al, 2011). In contrast, response diversity describes features at the individual and societal levels that enable people to enact a variety of existing and new strategies (Leslie and McCabe, 2014).…”

Section: Resilience Of Asns During Systemic Shockmentioning

confidence: 99%

Alternative seafood networks during COVID-19: Implications for resilience and sustainability

Stoll¹,

Harrison²,

Sousa³

et al. 2020

Preprint

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Export-oriented seafood trade faltered during the early months of the COVID-19 pandemic. In contrast, our research shows that alternative seafood networks (ASNs), which deliver seafood locally and direct to consumers, surged in the United States and Canada. The juxtaposition between ASNs and the broader seafood system raises important questions about the role that local food systems may play, paradoxically, in supporting global seafood trade during crises and highlights the need for functional diversity in supply chains.

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Section: Resilience Of Asns During Systemic Shockmentioning

confidence: 99%

Alternative seafood networks during COVID-19: Implications for resilience and sustainability

Stoll¹,

Harrison²,

Sousa³

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Aquaculture plays an important role in global food production ( Belton and Thilsted, 2014 ; Loring et al, 2019 ). However, the availability of land and water resources for aquaculture is currently limited, while susceptibility to new diseases is increasing ( Ayyam et al, 2019 ; Lebel et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

An Investigation of ZZ/ZW and XX/XY Sex Determination Systems in North African Catfish (Clarias gariepinus, Burchell, 1822)

et al. 2021

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An investigation of sex-specific loci may provide important insights into fish sex determination strategies. This may be useful for biotechnological purposes, for example, to produce all-male or all-female fish for commercial breeding. The North African catfish species, Clarias gariepinus, has been widely adopted for aquaculture because its superior growth and disease resistance render the species suitable for hybridization with other catfish to improve the productivity and quality of fish meat. This species has either a ZZ/ZW or XX/XY sex determination system. Here, we investigate and characterize these systems using high-throughput genome complexity reduction sequencing as Diversity Arrays Technology. This approach was effective in identifying moderately sex-linked loci with both single-nucleotide polymorphisms (SNPs) and restriction fragment presence/absence (PA) markers in 30 perfectly sexed individuals of C. gariepinus. However, SNPs based markers were not found in this study. In total, 41 loci met the criteria for being moderately male-linked (with male vs. female ratios 80:20 and 70:30), while 25 loci were found to be moderately linked to female sex. No strictly male- or female-linked loci were detected. Seven moderately male-linked loci were partially homologous to some classes of transposable elements and three moderately male-linked loci were partially homologous to functional genes. Our data showed that the male heterogametic XX/XY sex determination system should co-exist with the ZZ/ZW system in C. gariepinus. Our finding of the co-existence of XX/XY and ZZ/ZW systems can be applied to benefit commercial breeding of this species in Thailand. This approach using moderately sex-linked loci provides a solid baseline for revealing sex determination mechanisms and identify potential sex determination regions in catfish, allowing further investigation of genetic improvements in breeding programs.

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“…Generally, these fell into two categories: structural factors and response diversity. Structural factors describe the fixed or hardto-change features of society, such as infrastructure and policy, which create vulnerabilities to impacts and path dependence as people mount their responses to change and surprise (Loring et al, 2011). Response diversity, on the other hand, describes the breadth of existing and new strategies that people mount in response to some challenge (Leslie and McCabe, 2014), which as we discuss below and is influenced by a variety of factors at the individualand societal-levels.…”

Section: Resilience Of Asns During Systemic Shockmentioning

confidence: 99%

Alternative Seafood Networks During COVID-19: Implications for Resilience and Sustainability

Stoll

Harrison

Sousa

et al. 2021

Front. Sustain. Food Syst.

Self Cite

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Export-oriented seafood trade faltered during the early months of the COVID-19 pandemic. In contrast, alternative seafood networks (ASNs) that distribute seafood through local and direct marketing channels were identified as a “bright spot.” In this paper, we draw on multiple lines of quantitative and qualitative evidence to show that ASNs experienced a temporary pandemic “bump” in both the United States and Canada in the wake of supply chain disruptions and government mandated social protections. We use a systemic resilience framework to analyze the factors that enabled ASNs to be resilient during the pandemic as well as challenges. The contrast between ASNs and the broader seafood system during COVID-19 raises important questions about the role that local and regional food systems may play during crises and highlights the need for functional diversity in supply chains.

show abstract

Fish and Food Security in Small-Scale Fisheries

Cited by 43 publications

References 51 publications

Alternative seafood networks during COVID-19: Implications for resilience and sustainability

Alternative seafood networks during COVID-19: Implications for resilience and sustainability

An Investigation of ZZ/ZW and XX/XY Sex Determination Systems in North African Catfish (Clarias gariepinus, Burchell, 1822)

Alternative Seafood Networks During COVID-19: Implications for Resilience and Sustainability

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