Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)

Holothurians are a valuable resource for coastal communities in the Indo-Pacific region; however, the unsustainable exploitation of the species and the rising wholesale price of the processed product (bêche-de-mer) have resulted in the depletion of wild stocks worldwide. Athyonidium chilensis is the...

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Autores principales:	Guisado,Chita, Carrasco,Sergio A, Díaz-Guisado,Daniela, Maltrain,Roberto, Rojas,Herman
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2012
Materias:	Holothuroid bêche-de-mer vitellaria pentactula aquaculture
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000100006
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spelling	oai:scielo:S0718-195720120001000062012-06-21Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)Guisado,ChitaCarrasco,Sergio ADíaz-Guisado,DanielaMaltrain,RobertoRojas,Herman Holothuroid bêche-de-mer vitellaria pentactula aquaculture Holothurians are a valuable resource for coastal communities in the Indo-Pacific region; however, the unsustainable exploitation of the species and the rising wholesale price of the processed product (bêche-de-mer) have resulted in the depletion of wild stocks worldwide. Athyonidium chilensis is the most economically important holothuroid in the Southeast Pacific coast; however, the early life-history of the species has not been previously described. A. chilensis developed through the lecithotrophic vitellaria and the pentactula larval stages in ~7 days at 13 ± 0.3°C. At settlement, individuals were capable of active feeding on micro-algae associated with the sediment. Thirty-five days post-fertilization, the buccal tentacles and the fourth pair of ambulacral podia were completely developed. After 4 months of cultivation, juvenile (~1.4 mm length) had a substantial number of podia on the body surface and some common adult behaviors were also displayed. An evident effect of the density during the culture of juveniles was observed, with higher growth rates and survival observed in the treatment with the lowest density (1 ind cm-2). This study provides the first descriptions of the early life-history stages of A. chilensis, but also shows this sea cucumber can be successfully reared in land-based nursery systems. Culture of this species is feasible and could be potentially developed as an alternative to maintain a sustainable harvest by contributing to the restoration of natural populations.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.47 n.1 20122012-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000100006en10.4067/S0718-19572012000100006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Holothuroid bêche-de-mer vitellaria pentactula aquaculture
spellingShingle	Holothuroid bêche-de-mer vitellaria pentactula aquaculture Guisado,Chita Carrasco,Sergio A Díaz-Guisado,Daniela Maltrain,Roberto Rojas,Herman Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
description	Holothurians are a valuable resource for coastal communities in the Indo-Pacific region; however, the unsustainable exploitation of the species and the rising wholesale price of the processed product (bêche-de-mer) have resulted in the depletion of wild stocks worldwide. Athyonidium chilensis is the most economically important holothuroid in the Southeast Pacific coast; however, the early life-history of the species has not been previously described. A. chilensis developed through the lecithotrophic vitellaria and the pentactula larval stages in ~7 days at 13 ± 0.3°C. At settlement, individuals were capable of active feeding on micro-algae associated with the sediment. Thirty-five days post-fertilization, the buccal tentacles and the fourth pair of ambulacral podia were completely developed. After 4 months of cultivation, juvenile (~1.4 mm length) had a substantial number of podia on the body surface and some common adult behaviors were also displayed. An evident effect of the density during the culture of juveniles was observed, with higher growth rates and survival observed in the treatment with the lowest density (1 ind cm-2). This study provides the first descriptions of the early life-history stages of A. chilensis, but also shows this sea cucumber can be successfully reared in land-based nursery systems. Culture of this species is feasible and could be potentially developed as an alternative to maintain a sustainable harvest by contributing to the restoration of natural populations.
author	Guisado,Chita Carrasco,Sergio A Díaz-Guisado,Daniela Maltrain,Roberto Rojas,Herman
author_facet	Guisado,Chita Carrasco,Sergio A Díaz-Guisado,Daniela Maltrain,Roberto Rojas,Herman
author_sort	Guisado,Chita
title	Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
title_short	Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
title_full	Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
title_fullStr	Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
title_full_unstemmed	Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)
title_sort	embryonic development, larval morphology and juvenile growth of the sea cucumber athyonidium chilensis (holothuroidea: dendrochirotida)
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000100006
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Embryonic development, larval morphology and juvenile growth of the sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida)

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