Kappaphycus alvarezii is economically-important seaweed due to higher carrageenin contents. Suitable culture-method, culture-sites and solutions for fish-grazing have not been tested. Hence, growth-rate ofK.alvarezii under three culture-methods namely raft, line, and cylinder-cage were compared off Velanai and Kayts, in northern Sri Lanka from April-August 2014. Raft and line culture-methods were...
After 2008, in the post-war context of northern Sri Lanka, the Blue swimming crab (BSC), Portunus pelagicus, fishery is U68blooming and becoming an export-oriented industry. Presently the major concern of BSC industry is how long this resource could sustainably utilized, if fishery continuous with current increasing exploitation rates. Hence, present...
Balancing sustainable utilisation goals and equity in socio-economic outcomes become challenging in managing artisanal fisheries, confronted by fluctuating fisheries-resources and poor management-structures. Such artisanal trap-net fishery called "Paddi-Valai" has been targeting shrimps in Anthoniyaarpuram coast in northern Sri Lanka. But its main by-catch, blue swimming crab (BSC), Portunus pelagicus, has...
Despite to the high fishing pressure; use of illegal fishing methods; deforestation, manufacturing, tourism and even the dynamic market environment, an artisanal stake-net fishery, which operates for shrimps, has been able to survive since 1721 in Negombo lagoon in the western Sri Lanka. The key strength of the stake-net fishery...