Guiding the sustainable development of sectors within the blue economy is critical not only to the global goal of thriving life under water (SDG 14), but also across many other goals related to resources, poverty, health, equity and wellbeing. This is especially the case for island and coastal states, where oceans support daily subsistence, livelihoods and economic opportunities, in the face of poverty and food and nutrition insecurity.
This paper aims to describe the role of key players in the value chain for milkfish Chanos chanos (Forsskål, 1775) in a mariculture Park in Balingasag, Misamis Oriental in the Philippines with an emphasis on gender dimensions. It also estimates the value additions done by the key players and assesses implications on income distribution. Mapping the chain involved primary data collection through observations, key informant interviews, and focus group discussions. The big, medium and small-scale fish cage operators – 90 % men – are the key players in production.
Giant clam culture is discussed considering in particular Tridacna gigas , T. derasa, T. squamosa and Hippopus hippopus with respect to work undertaken at the Micronesian Mariculture Demonstration Center in Palau.
In this study the authors investigated whether short-term protection from predation improved survival of cultured juvenile sandfish released into a range of seagrass habitats located within potential community sea ranching sites. It also describes the biophysical properties of the habitats and relates these to sandfish growth. The results will assist project managers and community farmers in optimising methods for releases and in selecting suitable sites for sea ranching operations in New Ireland Province (NIP), PNG.
Mariculture of tropical sea cucumbers is promising, but the nursery rearing of juveniles is a bottleneck for farming and sea ranching. We conducted four medium-scale experiments lasting 3–6 weeks, using thousands of cultured juvenile sandfish Holothuria scabra, to optimise nursery rearing in mesh enclosures in earthen seawater ponds and to test rearing in enclosures in the sea. The findings and experimental approach should be valuable for optimising mariculture of other tropical sea cucumbers.
This paper aims to evaluate mariculture as sustainable livelihood diversification option for coastal fishers in the Philippines and guide policy development in this direction. Mariculture in the Philippines refers to the culture of finfishes, shellfish, seaweeds and other commodities in cages, pens, stakes and rafts in marine environment. This paper evaluates the biophysical and socioeconomic contexts in which mariculture operate.
The development of marine fish aquaculture in China is discussed; major species cultured include: mullets, tilapias, milkfish, porgies, groupers, flounders and seahorses.
The marine grouper species are considered high value food fish in several countries. However, controlled breeding and hatchery production of grouper fingerlings for commercial farming is still in its infancy. Investigations on the growth performance of the brown marbled grouper Epinephelus fuscoguttatus (Forskal), camouflage grouper E. polyphekadion (Bleeker) and their hybrid (E. fuscoguttatus x E. polyphekadion) under hatchery and growout culture conditions indicate the potential of grouper hybrids for aquaculture.
The expected more interest of marine aquaculture projects in Egypt will increase the demands of marine seed production for a variety of species. The limited and inconsistent availability of wild finfish and shellfish larvae together with an urgent need of establishing selective breeding programs increased the interest in captive reproduction of finfish and shellfish worldwide. The selection of a species suitable for Egyptian marine aquaculture depends primarily on its marketing value, biology and the ability to produce juveniles in significant numbers for commercial production.
A study of chemoreception in relation to feeding and other factors involved showed that feeding behavior in shrimps can be triggered by chemical stimuli. However, Penaeus indicus and Metapenaeus dobsoni differ significantly in their chemotactic response to different stimuli.