High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets
The feeding activity of bivalves is understood to change in response to a suite of environmental conditions, including food quantity and quality. It has been hypothesized that, by varying feeding rates in response to the available diet, bivalves may be able to maintain relatively stable ingestion ra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/10/9/1290 |
| _version_ | 1797486308666376192 |
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| author | Laura Steeves Antonio Agüera Ramón Filgueira Øivind Strand Tore Strohmeier |
| author_facet | Laura Steeves Antonio Agüera Ramón Filgueira Øivind Strand Tore Strohmeier |
| author_sort | Laura Steeves |
| collection | DOAJ |
| description | The feeding activity of bivalves is understood to change in response to a suite of environmental conditions, including food quantity and quality. It has been hypothesized that, by varying feeding rates in response to the available diet, bivalves may be able to maintain relatively stable ingestion rates, allowing them to have constant energy uptake despite changes in food availability. The purpose of this study was to determine if the blue mussel <i>Mytilus edulis</i> responds to fluctuations in natural diets by changing feeding rates to maintain constant ingestion rates. Three four-day experiments were conducted to measure pumping and ingestion rates in response to natural fluctuations in food concentration (chlorophyll <i>a</i>). Experiments were conducted in a flow-through system over the spring season in south-western Norway. Pumping and ingestion rates were measured with high temporal resolution (every 20 min), which permitted the observation of the intra- and interindividual variability of feeding rates. Results show pumping rates varying within individuals over 4 days, and some individuals pumping on average at high rates (~5 Lh<sup>−1</sup>), and some at low (~1 Lh<sup>−1</sup>), despite being held in similar conditions. The pumping rate was generally not related to changes in food availability, and population-level ingestion rates increased with increasing food availability. These results suggest that, for this population of <i>M. edulis</i>, feeding rates may not vary with the available diet to produce constant ingestion over time. |
| first_indexed | 2024-03-09T23:32:20Z |
| format | Article |
| id | doaj.art-9bc7a73670fa438db291c3b1784e323c |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T23:32:20Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-9bc7a73670fa438db291c3b1784e323c2023-11-23T17:07:56ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-09-01109129010.3390/jmse10091290High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural DietsLaura Steeves0Antonio Agüera1Ramón Filgueira2Øivind Strand3Tore Strohmeier4Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, NS B3H 4R2, CanadaInstitute of Marine Research, P.O. Box 1870, 5817 Bergen, NorwayInstitute of Marine Research, P.O. Box 1870, 5817 Bergen, NorwayInstitute of Marine Research, P.O. Box 1870, 5817 Bergen, NorwayInstitute of Marine Research, P.O. Box 1870, 5817 Bergen, NorwayThe feeding activity of bivalves is understood to change in response to a suite of environmental conditions, including food quantity and quality. It has been hypothesized that, by varying feeding rates in response to the available diet, bivalves may be able to maintain relatively stable ingestion rates, allowing them to have constant energy uptake despite changes in food availability. The purpose of this study was to determine if the blue mussel <i>Mytilus edulis</i> responds to fluctuations in natural diets by changing feeding rates to maintain constant ingestion rates. Three four-day experiments were conducted to measure pumping and ingestion rates in response to natural fluctuations in food concentration (chlorophyll <i>a</i>). Experiments were conducted in a flow-through system over the spring season in south-western Norway. Pumping and ingestion rates were measured with high temporal resolution (every 20 min), which permitted the observation of the intra- and interindividual variability of feeding rates. Results show pumping rates varying within individuals over 4 days, and some individuals pumping on average at high rates (~5 Lh<sup>−1</sup>), and some at low (~1 Lh<sup>−1</sup>), despite being held in similar conditions. The pumping rate was generally not related to changes in food availability, and population-level ingestion rates increased with increasing food availability. These results suggest that, for this population of <i>M. edulis</i>, feeding rates may not vary with the available diet to produce constant ingestion over time.https://www.mdpi.com/2077-1312/10/9/1290<i>Mytilus edulis</i>pumping rateingestion ratenatural sestonfilter-feedingblue mussel |
| spellingShingle | Laura Steeves Antonio Agüera Ramón Filgueira Øivind Strand Tore Strohmeier High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets Journal of Marine Science and Engineering <i>Mytilus edulis</i> pumping rate ingestion rate natural seston filter-feeding blue mussel |
| title | High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets |
| title_full | High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets |
| title_fullStr | High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets |
| title_full_unstemmed | High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets |
| title_short | High-Frequency Responses of the Blue Mussel (<i>Mytilus edulis</i>) Feeding and Ingestion Rates to Natural Diets |
| title_sort | high frequency responses of the blue mussel i mytilus edulis i feeding and ingestion rates to natural diets |
| topic | <i>Mytilus edulis</i> pumping rate ingestion rate natural seston filter-feeding blue mussel |
| url | https://www.mdpi.com/2077-1312/10/9/1290 |
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