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The enhancement of abalone stocks: lessons from Japanese case studies
The results suggest that releases of abalone should be targeted at local populations in regions where stock enhancement is predicted to have the greatest chance of success, and the magnitude of releases should be considered carefully and determined for each region by taking the local carrying capacity into account.
Genetic effects of long-term stock enhancement programs.
The genetic effects of hatchery fish on wild populations using a comparative analysis of these two stocking programs found no published work apart from two Japanese reports of different types of stocking: red sea bream in Kagoshima Bay (KB) and Pacific herring in northern Japan.
Effects of temperature on the egg incubation period, survival and developmental period of larvae of the mud crab Scylla serrata (Forskål) (Brachyura: Portunidae) reared in the laboratory
For both egg and larval development, the equation of heat summation theory was the best model to characterize the relationship between temperature and the number of days required for development.
A review of kuruma prawn Penaeus japonicus stock enhancement in Japan
Analysis of catch and release histories for the whole of Japan suggested that population sizes of kuruma prawns fluctuated depending on the condition of the coastal marine environment, particularly the tidal nursery habitats, and that hatchery releases have not succeeded in augmenting total production of this species.
Effect of Artemia feeding schedule and density on the survival and development of larval mud crab Scylla serrata.
To avoid cannibalism or excessive feeding in the larval mud crab, Artemia should be given from the Z3 stage at an optimal level of 1.5 ind./mL or increasing density according to the zoeal stage.
Essential fatty acids for larval mud crab Scylla serrata: implications of lack of the ability to bioconvert C18 unsaturated fatty acids to highly unsaturated fatty acids
It is concluded that mud crab larvae have a limited or negligible capability to convert C18 unsaturated fatty acids to highly uns saturated fatty acids.
Batch fecundity of the swimming crab Portunus trituberculatus (Brachyura: Portunidae)
Number of first zoeas being less than the oocyte number for females of the same size, it is suggested that egg loss occurred from oviposition to hatching.
Identification of four mud crab species (genus Scylla) using ITS-1 and 16S rDNA markers
The first internal transcribed spacer (ITS-1) of nuclear ribosomal DNA and mitochondrial DNA 16S rRNA were amplified by Polymerase chain reaction (PCR) using genomic DNA extracted from adult tissue
Effects of Artemia enriched with eicosapentaenoic and docosahexaenoic acid on survival and occurrence of molting failure in megalop larvae of the mud crab Scylla serrata
Results indicate that during Artemia feeding, EPA and DHA content should be adjusted to 0.72% for maintaining a high survival, accelerating the intermolt period, and producing larger carapace width in the first crab stage.
Molecular and morphological evidence of hybridization between native Ruditapes philippinarum and the introduced Ruditapes form in Japan
A genetic affinity of the sample from the Ariake Sea to R. philippinarum was found with the intermediate shell morphology and number of radial ribs, and the hybrid proportion was estimated at 51.3 ± 4.6 % in theAriake Sea.