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Inducing relaxation in the queen conch Strombus gigas (L.) for cultured pearl production
| Title: | Inducing relaxation in the queen conch Strombus gigas (L.) for cultured pearl production. |
 148 views 53 downloads |
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| Name(s): |
Acosta-Salmón, Héctor, creator Davis, Megan, creator |
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| Type of Resource: | text | |
| Genre: | Article | |
| Issuance: | single unit | |
| Date Issued: | 2006 | |
| Publisher: | Elsevier B.V. | |
| Extent: | 6 p. | |
| Physical Description: | ||
| Language(s): | English | |
| Identifier: | 2761975 (digitool), FADT2761975 (IID), fau:5509 (fedora), 10.1016/j.aquaculture.2006.09.032 (doi) | |
| Note(s): |
Five potential relaxant chemicals were evaluated: 2-phenoxyethanol, menthol crystals, benzocaine, MS-222, and magnesium chloride to induce relaxation in the queen conch for cultured pearl production. S. gigas were exposed to each chemical and were observed continuously for 30 min. Conch were placed on the bottom of the container with the aperture facing upwards (i.e., in an inverted position). When conch returned to their ‘normal’ position, they were turned facing upwards again. This process continued until conch were unable to return to their normal position. Only 30 g L−1 magnesium chloride induced adequate relaxation in S. gigas to attempt pearl seeding. Conch exposed to all other treatments, except 0.25 g L−1 menthol, showed a strong ‘kicking’ (escape) reaction during the initial 2 min to 7 min of exposure. After such reaction, conch retracted into their shells and within the 30 min exposure period they showed no signs of relaxation. Conch exposed to 0.25 g L−1 menthol did not attempt to right but slowly retracted into their shells and did not show signs of relaxation. Conch can be relaxed in 20 min with magnesium chloride. They showed an extended mantle, a relaxed foot and a slow response to physical manipulation. This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version has been published at http://www.elsevier.com/ and may be cited as: Acosta‐Salmon, Hector and Davis, Megan(2006) Inducing relaxation in the queen conch Strombus gigas (L.) for cultured pearl production, Aquaculture 262(1):73–77 doi:10.1016/j.aquaculture.2006.09.032 Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1641. |
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| Subject(s): |
Queen conch Pearls Marine biology --Research |
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| Persistent Link to This Record: | http://purl.flvc.org/FCLA/DT/2761975 | |
| Links: | http://dx.doi.org/10.1016/j.aquaculture.2006.09.032 | |
| Restrictions on Access: | ©2006 Elsevier B.V. | |
| Host Institution: | FAU |
