Browsing Miscellaneous themes by Author "Purcell, S.W."
Now showing items 1-14 of 14
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An external check for disease and health of hatchery-produced sea cucumbers.
(2005)Type: Journal ArticleSea cucumber diseases that arise in the hatchery can cripple production and undermine restocking programmes. A rapid protocol for the external examination of juvenile sea cucumbers was developed in order to screen for ... -
Changes in weight and length of sea cucumbers during conversion to processed beche-de-mer: filling gaps for some exploited tropical species
(2009)Type: Journal ArticleConverting the weights or lengths of sea cucumbers in processed forms (e.g., salted or dried) to their original (live) measurement is essential for standardising data from fishery-dependent surveys and exports. We estimated ... -
Developing technologies for restocking sandfish: Update on the WorldFish-SPC project in New Caledonia.
(2005)Type: Journal ArticleThe WorldFish Center project to develop strategies for restocking sea cucumbers is now in its fourth year. Its main purpose is to develop optimal release strategies for the restocking of sandfish (Holothuria scabra). ... -
Diel burying by the tropical sea cucumber Holothuria scabra: effects of environmental stimuli, handling and ontogeny
(2010)Type: Journal ArticleUnderstanding concealment behaviour of marine animals is vital for population surveys and captive-release programmes. The commercially valuable sea cucumber Holothuria scabra Jaeger 1833 (Holothuroidea) can display a diel ... -
Effective fluorochrome marking of juvenile sea cucumbers for sea ranching and restocking
(2009)Type: Journal ArticleMarking of skeletal body parts of marine animals with fluorochromes, such as tetracycline and calcein, can provide a valuable tool for mark-recapture studies. In recent decades, both fluorochromes have been used extensively ... -
Efficacy of chemical markers and physical tags for large-scale release of an exploited holothurian.
(2006)Type: Journal ArticleHatchery-produced juveniles need to be distinguished from wild conspecifics in order to evaluate the success of restocking experiments and stock enhancement. The commercially valuable sea cucumber Holothuria scabra, or ... -
Final stages of WorldFish-SPC sea cucumber project
(2005)Type: Journal ArticleA joint WorldFish - Secretariat of the Pacific Community (SPC) project to restore to productive levels the breeding populations of sea cucumber, using the sandfish (Holothuria scabra) as the focal species, is in its final ... -
Natural hybridisation does not dissolve species boundaries in commercially important sea cucumbers
(2005)Type: Journal ArticleThe study of species boundaries in areas of sympatry provides important insight into speciation processes. We investigated whether (i) two sympatric holothurians, Holothuria scabra and H. s. var. versicolor constituted ... -
Ontogenetic changes in colouration and morphology of white teatfish, Holothuria fuscogilva, juveniles at Kiribati
(2006)Type: Journal ArticleLittle is known of the appearance or ecology of white teatfish (Holothuria fuscogilva) juveniles, which are very rarely found in the wild. In this study we use juveniles cultured in Kiribati to describe their ontogenetic ... -
Sea cucumber culture, farming and sea ranching in the tropics: Progress, problems and opportunities
(2012)Type: Journal ArticleTropical sea cucumber mariculture has potential to become a profitable industry and contribute towards natural population replenishment. Here, we synthesise the fields of progress, current impediments and research opportunities ... -
Spatial patterns of epilithic algal and detrital resources on a windward coral reef
(2001)Type: Journal ArticleAlgae and detritus co-occur on reef substrata, but their relative importance to consumers, in terms of biomass and nutrient content, is poorly understood. Epilithic algae, sediment and detritus were sampled among four ... -
Spatio-temporal and size-dependent variation in the success of releasing cultured sea cucumbers in the wild
(2008)Type: Journal ArticleLarge-scale releases of cultured “sandfish,” Holothuria scabra, were used to examine size- and density-dependent effects on survival among sites. Juveniles were marked by fluorochromes in 3 size classes and released into ... -
Taxonomy of the heavily exploited Indo-Pacific sandfish complex (Echinodermata: Holothuriidae)
(2009)Type: Journal ArticleTwo commercially valuable holothurians, the sandfish and golden sandfish, vary in colour and have a confused taxonomy, lending uncertainty to species identifications. A recent molecular study showed that the putative variety ... -
Transportation methods for restocking of juvenile sea cucumber, Holothuria scabra.
(2006)Type: Journal ArticleThe sandfish, Holothuria scabra, is a heavily exploited sea cucumber species. Minimising stress in the transportation of hatchery-produced sandfish juveniles to release sites is critical for successful restocking. Replicate ...
