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Dive into the research topics where Richard Rasolofonirina is active.

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Featured researches published by Richard Rasolofonirina.


Invertebrate Reproduction & Development | 2009

A new method to induce oocyte maturation in holothuroids (Echinodermata)

Aline Léonet; Richard Rasolofonirina; Ruddy Wattiez; Michel Jangoux; Igor Eeckhaut

Summary Oocyte maturation in sea cucumbers is stopped during the meiosis at prophase I. Maturation naturally concludes just before spawning leading to a mature oocyte ready to be fertilized. Although thermal shocks applied on mature individuals can induce spawning, it is currently not possible to perform reliably in vitro fertilization of sea cucumber oocytes. The present paper reports the discovery of a new and highly effective oocyte maturation inducer (OMI), called MIF (for maturation inducing fractions). MIFs effects on oocytes of the marketable species Holothuria scabra were analysed and compared to that of the few OMIs described in literature. MIF induces the maturation and fertilization of more than 90% of oocytes while other OMIs [1-methyladenine, dithiothreitol (DTT), dimercapto-propanol (BAL) and L-cysteine] induces 28–90% of oocytes to mature depending on the tested inducer. Moreover the use of the other OMIs result in fertilization rates that never exceed 40%, and the obtained larvae often resent developmental abnormalities. MIFs action on H. scabra oocytes is efficient yearlong even outside the spawning period of H. scabra. MIF is effective on the oocytes of all aspidochirote species tested so far but only when it is prepared from spawns of regular female sea urchin.


Aquaculture | 2004

The skin ulceration disease in cultivated juveniles of Holothuria scabra (Holothuroidea, Echinodermata)

Pierre Becker; David Gillan; Déborah Lanterbecq; Michel Jangoux; Richard Rasolofonirina; J. Rakotovao; Igor Eeckhaut


Marine Biology | 2003

Feeding preferences, seasonal gut repletion indices, and diel feeding patterns of the sea urchin Tripneustes gratilla (Echinodermata: Echinoidea) on a coastal habitat off Toliara (Madagascar)

Devarajen Vaïtilingon; Richard Rasolofonirina; Michel Jangoux


Western Indian Ocean journal of marine science | 2007

Reproductive Cycle of Edible Echinoderms from the Southwestern Indian Ocean II. The Ssandfish Holothuria scabra (Jaeger, 1833)

Richard Rasolofonirina; Devarajen Vaïtilingon; Igor Eeckhaut; Michel Jangoux


Bêche-de-mer | 2008

Madagascar Holothurie SA: The first trade company based on sea cucumber aquaculture in Madagascar

Igor Eeckhaut; Thierry Lavitra; Richard Rasolofonirina; M.W. Rabenevanana; P. Gildas; Michel Jangoux


SPC Beche-de-mer Information Bulletin | 2009

Problems related to the farming of Holothuria scabra (Jaeger, 1833)

Thierry Lavitra; Richard Rasolofonirina; Michel Jangoux; Igor Eeckhaut


Archive | 2001

A sea cucumber hatchery and mariculture project in Tulear, Madagascar

Michel Jangoux; Richard Rasolofonirina; Devarajen Vaïtilingon; Jean-Marc Ouin; Guy Seghers; Edouard Mara


Bêche-de-mer | 2008

Processing and marketing of holothurians in the Toliara region, southwestern Madagascar

Thierry Lavitra; Dina Rachelle; Richard Rasolofonirina; Michel Jangoux; Igor Eeckhaut


Western Indian Ocean journal of marine science | 2010

The Effect of Sediment Quality and Stocking Density on Survival and Growth of the Sea Cucumber Holothuria scabra Reared in Nursery Ponds and Sea Pens

Thierry Lavitra; Richard Rasolofonirina; Igor Eeckhaut


Western Indian Ocean journal of marine science | 2007

Reproductive Cycle of Edible Echinoderms from the Southwestern Indian Ocean I. Tripneustes gratilla L. (Echinoidea, Echinodermatata)

Devarajen Vaïtilingon; Richard Rasolofonirina; Michel Jangoux

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Michel Jangoux

Université libre de Bruxelles

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Thierry Lavitra

University of Mons-Hainaut

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Devarajen Vaïtilingon

Université libre de Bruxelles

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David Gillan

Université libre de Bruxelles

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Michel Jangoux

Université libre de Bruxelles

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Guy Seghers

Université libre de Bruxelles

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