Development of Diversity Arrays Technology markers as a tool for rapid genomic assessment in Nile tilapia, Oreochromis niloticus

The development of genomic markers is described for Nile tilapia, Oreochromis niloticus, using the Diversity Arrays Technology (DArT) genotype-by-sequencing platform. A total of 13 215 single nucleotide polymorphism (SNP) markers and 12 490 silicoDArT (dominant) markers were identified from broodstock of two selective breeding programs [Genetically Improved Farmed Tilapia (GIFT) strain from Malaysia and the Abbassa strain from Egypt]. Over 10 000 SNPs were polymorphic in either strain, and 2985 and 3087 showed strain-specific polymorphisms for the GIFT and Abbassa strains respectively.

Uncovering human social networks in coping with Lake Chilwa recessions in Malawi

This paper provides an in-depth understanding of social dynamics in the form of kinship ties in matrilineal societies. It unpacks gender roles and relationships at the community level to understand how social structures, created by the pattern of relations, enhance or hinder coping initiatives during lake recessions in the Lake Chilwa socio-ecological system.

Participatory diagnosis of coastal fisheries for North Tarawa and Butaritari island communities in the Republic of Kiribati

In support of the Kiribati National Fisheries Policy 2013–2025, the ACIAR project "Improving Community-Based Fisheries Management in Pacific Island Countries" aims to develop and nurture the structures, processes and capacity to implement and sustain national programs in Kiribati, Solomon Islands and Vanuatu.

Food and nutrition security in Sierra Leone with a focus on fish in Tonkolili District

Sierra Leone, located on the west coast of Africa, has a population of 6.3 million, with an annual growth rate of 2.2%. Food insecurity and malnutrition are national concerns, as almost a quarter of the population is undernourished. Poor food availability, access and utilization contribute to undernourishment. Fish is an important part of the Sierra Leonean diet, so increasing fish production—and thus its availability and consumption—may help reduce malnutrition.

Social dynamics shaping the diffusion of sustainable aquaculture innovations in the Solomon Island

Sustainably feeding the world’s growing population represents one of our most significant challenges. Aquaculture is well positioned to make contributions towards this challenge. Yet, the translation of aquaculture production innovations into benefits for rural communities is constrained by a limited understanding of the social dynamics that influence the adoption of new agricultural practices. In this paper, we investigate the factors that shape the spread of small-scale tilapia aquaculture through rural Solomon Islands.

Fish, trade and food security: Moving beyond ‘availability’ discourse in marine conservation

The goal of food security increasingly serves as an objective and justification for marine conservation in the global south. In the marine conservation literature this potential link is seldom based upon detailed analysis of the socioeconomic pathways between fish and food security, is often based on limited assumptions about increasing the availability of fish stocks, and downplays the role of trade. Yet, the relationship between fish and food security is multi-faceted and complex, with various local contextual factors that mediate between fish and food security.

The Nutritious pond project

The Nutritious Pond System has now implemented its activities on the ground for a year. The project is a partnership between a research organization (WorldFish), universities (Wageningen University and Can Tho University), private sector firms (Nutreco, Skretting Vietnam, Vemedin) and shrimp farmers to develop a new approach to feeding pond aquaculture. This project Newsletter highlights recent activities and the first results of on-farm pond trials and outputs from fundamental research.

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