Browsing by Author "Purcell, S.W."
Now showing items 1-20 of 28
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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 ... -
Analysis of optimal habitat for captive release of the sea cucumber Holothuria scabra
(2018)Type: Journal ArticleThe success of marine stocking programs hinges on releasing hatchery-produced juvenile animals into the optimal marine habitat. This study sought to identify optimal microhabitat features of coastal seagrass meadows 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 ... -
Distribution of economic returns in small-scale fisheries for international markets: A value-chain analysis
(2017)Type: Journal ArticleSmall-scale fishers are often believed to receive marginal earnings for seafood relative to other value- chain actors but proportionate incomes across different traded species are rarely compared. This study compares value ... -
Echinoderms piggybacking on sea cucumbers: Benign effects on sediment turnover and movement of hosts
(2015)Type: Journal ArticleSea cucumbers (Holothuroidea) are known to host ectocommensal animals but echinoderm epibionts have never been reported nor their effects on hosts appraised quantitatively. At one location in New Caledonia, we found a high ... -
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 ... -
Experimental evaluation of co-culture of juvenile sea cucumbers, Holothuria scabra (Jaeger), with juvenile blue shrimp, Litopenaeus stylirostris (Stimpson).
(2006)Type: Journal ArticleThe co-culture of juvenile sea cucumber Holothuria scabra (Jaeger), or ‘sandfish’, with juvenile blue shrimp Litopenaeus stylirostris (Stimpson) was tested by growing groups in co-culture and monoculture for 3 weeks in ... -
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 ... -
Governance structures and sustainability in Indian Ocean sea cucumber fisheries
(2015)Type: Journal ArticleGood governance is paramount to the sustainability of fisheries, and inclusiveness of stakeholder groups has become the centerpiece in the ethos of managing small-scale fisheries. Understanding the effect of governance ... -
Grow-out of sandfish Holothuria scabra in ponds shows that co-culture with shrimp Litopenaeus stylirostris is not viable
(2007)Type: Journal ArticleWe examined the potential for producing the large numbers of sandfish (Holothuria scabra) needed for restocking programmes by co-culturing juveniles with the shrimp Litopenaeus stylirostris in earthen ponds. Our experiments ... -
Lessons for resource conservation from two contrasting small-scale fisheries
(2015)Type: Journal ArticleSmall-scale fisheries present challenges to management due to fishers' dependency on resources and the adaptability of management systems. The authors compared social-ecological processes in the sea cucumber fisheries of ... -
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 ... -
Optimisation of mesh enclosures for nursery rearing of juvenile sea cucumbers
(2013)Type: Journal ArticleMariculture 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 ... -
Releases of cultured sub-adult Trochus niloticus generate broodstock for fishery replenishment in Vanuatu
(2004)Type: Journal ArticleThe over-fished topshell Trochus niloticus ('trochus ') was cultured in Vanuatu and grown to sub-adult size (~40 mm) in sea cages. We released 200 of these trochus at each of five reef sites managed through Customary Marine ... -
Restocking the sea cucumber Holothuria scabra: sizing no-take zones through individual-based movement modelling
(2006)Type: Journal ArticleThe valuable sea cucumber Holothuria scabra, known as ‘sandfish’, has potential for restocking. However, there is little information available to determine the size of the no-take zones (NTZs) needed to protect the released ... -
Restoring small-scale fisheries for tropical sea cucumbers
(2008)Type: Journal ArticleOverfishing threatens to extinguish local fisheries for valuable tropical sea cucumbers by reducing population densities to the point where reproductive success trails behind natural mortality (known as depensation or the ...
