کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8863344 | 1666263 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Valve-gaping behavior of raft-cultivated mussels in the RÃa de Arousa, Spain
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
We describe the valve-opening behavior of raft-cultivated mussels (Mytilus galloprovincialis) in the RÃa de Arousa (Arousa estuary), Spain. Eight rope-grown mussels [meanâ¯Â±â¯standard error (SEM), shell length 61.6â¯Â±â¯2.1â¯mm] were connected to a non-invasive valvometry apparatus that monitored (one measurement minâ1) the magnitude of valve openness systematically over a 10â¯day period. It was found that valves were open 97.5â¯Â±â¯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 (Ïâ¯=â¯24.0â¯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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture Reports - Volume 9, February 2018, Pages 68-73
Journal: Aquaculture Reports - Volume 9, February 2018, Pages 68-73
نویسندگان
Luc A. Comeau, Jose M.F. Babarro, Angeles Longa, Xose A. Padin,