Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain
We describe the valve-opening behavior of raft-cultivated mussels (Mytilus galloprovincialis) in the Ría de Arousa (Arousa estuary), Spain. Eight rope-grown mussels [mean ± standard error (SEM), shell length 61.6 ± 2.1 mm] were connected to a non-invasive valvometry apparatus that monitored (one mea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018-02-01
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| Series: | Aquaculture Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513417300856 |
| _version_ | 1811340332947734528 |
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| author | Luc A. Comeau Jose M.F. Babarro Angeles Longa Xose A. Padin |
| author_facet | Luc A. Comeau Jose M.F. Babarro Angeles Longa Xose A. Padin |
| author_sort | Luc A. Comeau |
| collection | DOAJ |
| description | We describe the valve-opening behavior of raft-cultivated mussels (Mytilus galloprovincialis) in the Ría de Arousa (Arousa estuary), Spain. Eight rope-grown mussels [mean ± standard error (SEM), shell length 61.6 ± 2.1 mm] were connected to a non-invasive valvometry apparatus that monitored (one measurement min−1) the magnitude of valve openness systematically over a 10 day period. It was found that valves were open 97.5 ± 1.3% percent of the time. Valve closures were not synchronized among the eight monitored mussels, suggesting that feeding cessation was physiologically-regulated rather than environmentally-mediated. The opening amplitudes that were most frequently observed were in the range of 60–90%, indicating that, when open, valves are usually opened relatively close to their maximum possible extent. The majority (7/8) of mussels displayed a circadian rhythm (τ = 24.0 h) in valve opening amplitude. They tended to exhibit maximum valve opening during nighttime and minimum opening during daytime. It is possible that the light:dark cycle represents an environmental zeitgeber entraining an endogenous gaping rhythm in this bivalve. |
| first_indexed | 2024-04-13T18:40:23Z |
| format | Article |
| id | doaj.art-0552828731df4bd9a643f74c40f437f0 |
| institution | Directory Open Access Journal |
| issn | 2352-5134 |
| language | English |
| last_indexed | 2024-04-13T18:40:23Z |
| publishDate | 2018-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj.art-0552828731df4bd9a643f74c40f437f02022-12-22T02:34:44ZengElsevierAquaculture Reports2352-51342018-02-019C687310.1016/j.aqrep.2017.12.005Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, SpainLuc A. Comeau0Jose M.F. Babarro1Angeles Longa2Xose A. Padin3Fisheries and Oceans Canada, Gulf Fisheries Centre, Science Branch, P. O. Box 5030, Moncton, New Brunswick, E1C 9B6, CanadaInstituto de Investigaciones Marinas, CSIC, Eduardo Cabello 6, 36208 Vigo, SpainDepartamento de I+D, Consello Regulador Mexillón de Galicia, SpainInstituto de Investigaciones Marinas, CSIC, Eduardo Cabello 6, 36208 Vigo, SpainWe describe the valve-opening behavior of raft-cultivated mussels (Mytilus galloprovincialis) in the Ría de Arousa (Arousa estuary), Spain. Eight rope-grown mussels [mean ± standard error (SEM), shell length 61.6 ± 2.1 mm] were connected to a non-invasive valvometry apparatus that monitored (one measurement min−1) the magnitude of valve openness systematically over a 10 day period. It was found that valves were open 97.5 ± 1.3% percent of the time. Valve closures were not synchronized among the eight monitored mussels, suggesting that feeding cessation was physiologically-regulated rather than environmentally-mediated. The opening amplitudes that were most frequently observed were in the range of 60–90%, indicating that, when open, valves are usually opened relatively close to their maximum possible extent. The majority (7/8) of mussels displayed a circadian rhythm (τ = 24.0 h) in valve opening amplitude. They tended to exhibit maximum valve opening during nighttime and minimum opening during daytime. It is possible that the light:dark cycle represents an environmental zeitgeber entraining an endogenous gaping rhythm in this bivalve.http://www.sciencedirect.com/science/article/pii/S2352513417300856Mytilus galloprovincialisRaft cultureBivalve behaviorValvometryCircadian rhythm |
| spellingShingle | Luc A. Comeau Jose M.F. Babarro Angeles Longa Xose A. Padin Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain Aquaculture Reports Mytilus galloprovincialis Raft culture Bivalve behavior Valvometry Circadian rhythm |
| title | Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain |
| title_full | Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain |
| title_fullStr | Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain |
| title_full_unstemmed | Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain |
| title_short | Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain |
| title_sort | valve gaping behavior of raft cultivated mussels in the ria de arousa spain |
| topic | Mytilus galloprovincialis Raft culture Bivalve behavior Valvometry Circadian rhythm |
| url | http://www.sciencedirect.com/science/article/pii/S2352513417300856 |
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