Identification of squid populations to support the development of sustainable stock management measures.
- Genetic analysis to distinguish different populations of Indian squid
- Enabling better stock management and development of harvest strategies
- Supporting efforts to improve sustainability and meet the MSC Fisheries Standard
Start date: May 2023
Student Research Grant
Reza Alnanda, IPB University, Indonesia
Indonesia North Sumatra squid fishery (handline)
Distinguishing squid stocks
Research supported by an MSC Student Research Grant will identify whether there are distinct populations of Indian squid (Uroteuthis duvaucelii) in the Malacca Strait. It is thought that differing water depths and currents between North and South Sumatra have separated the stock into two stock units, which are unable to mix.
To prevent the squid stock from being overfished, sustainable management measures need to be developed. However, the development of these measures requires an understanding of each stock unit. Different units may have different rates of growth, reproductive maturity and mortality, which can influence resilience to fishing.
Analysing squid DNA
Reza Alnanda, a PhD student at IPB University, will collect at least 50 tissue samples from squid caught at four different locations in the Malacca Strait.
DNA will be extracted, and genetic tests carried out. This will help identify whether there is genetic diversity between the stock units and determine which units the samples have originated from.
“The research is very important to support the establishment of an assessment of squid stocks...The results [could] recommend appropriate input that can be applied to develop and improve the management of squid fisheries.”PhD student at IPB University
Progress towards sustainability
The findings from this analysis will enable the fishery to carry out a more accurate stock assessment. This will inform the development of harvest strategies, to ensure the stock is not overfished.
The development of such management measures will help the fishery to meet the MSC Fisheries Standard. The fishery is currently making improvements to its environmental performance through the In-Transition to MSC program, with the aim of entering assessment against the Standard by 2026.