Effect of Mytilus coruscus selective filtration on phytoplankton assemblages
The feeding selectivity of bivalves can play an important role in shaping the structure of phytoplankton communities of natural waters. This could be particularly true in waters with intensive bivalves farming, like Sungo Bay, Northern China. Understanding the role of bivalve feeding behavior is imp...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-11-01
|
| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.1070737/full |
| _version_ | 1811219022781349888 |
|---|---|
| author | Tao Jiang Huizhu Pan Huizhu Pan Laura Steeves Zengjie Jiang Ramón Filgueira Ramón Filgueira Øivind Strand Tore Strohmeier Peter J. Cranford Zhengguo Cui |
| author_facet | Tao Jiang Huizhu Pan Huizhu Pan Laura Steeves Zengjie Jiang Ramón Filgueira Ramón Filgueira Øivind Strand Tore Strohmeier Peter J. Cranford Zhengguo Cui |
| author_sort | Tao Jiang |
| collection | DOAJ |
| description | The feeding selectivity of bivalves can play an important role in shaping the structure of phytoplankton communities of natural waters. This could be particularly true in waters with intensive bivalves farming, like Sungo Bay, Northern China. Understanding the role of bivalve feeding behavior is important for assessing how the dense cultivation of bivalves may affect phytoplankton community composition and food web structure in farm areas. In this study, we investigated the feeding selectivity of blue mussel Mytilus coruscus on natural phytoplankton assemblages in Sungo Bay using both optical microscopy and HPLC-pigment analysis. Results showed that cryptophytes dominated the phytoplankton community and made up 66.1% of the total phytoplankton abundance. A comparison of phytoplankton composition between natural and filtered seawater showed that M. coruscus preferred cryptophytes and dinoflagellates than Chaetoceros spp. and Skeletonema spp. Cryptophytes were not detected in gut contents by microscopic observation, while their marker pigment alloxanthin was present, suggesting they were also consumed by M. coruscus and can be readily digested. This highlights the shortcomings of microscopic methods and the significance of HPLC-pigment analysis in obtaining a comprehensive understanding of feeding selectivity of bivalves. The proportions of Chaetoceros spp. and Skeletonema spp. in gut contents were significantly lower than their proportions in the seawater, and contrastingly, the proportions of Cocconeis spp. and Pinnularia spp. showed opposite patterns. The marker pigments prasinoxanthin and zeaxanthin were detected in the gut of M. coruscus indicating that picophytoplankton (e.g., prasinophytes and Synechococcus) are also food sources for this bivalve. This information furthers our understanding of bivalve aquaculture and environment interactions. |
| first_indexed | 2024-04-12T07:18:47Z |
| format | Article |
| id | doaj.art-df6e153ef6c14c9e99616548023162b0 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-04-12T07:18:47Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-df6e153ef6c14c9e99616548023162b02022-12-22T03:42:23ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-11-01910.3389/fmars.2022.10707371070737Effect of Mytilus coruscus selective filtration on phytoplankton assemblagesTao Jiang0Huizhu Pan1Huizhu Pan2Laura Steeves3Zengjie Jiang4Ramón Filgueira5Ramón Filgueira6Øivind Strand7Tore Strohmeier8Peter J. Cranford9Zhengguo Cui10School of Ocean, Yantai University, Yantai, ChinaKey Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, ChinaGuangxi Key Laboratory of Marine Environmental Science, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Sciences, Nanning, ChinaMarine Affairs Program, Dalhousie University, Halifax, NS, CanadaKey Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, ChinaMarine Affairs Program, Dalhousie University, Halifax, NS, CanadaInstitute of Marine Research, Bergen, NorwayInstitute of Marine Research, Bergen, NorwayInstitute of Marine Research, Bergen, NorwayDepartment of Fisheries and Oceans, St. Andrews Biological Station, St. Andrews, NB, CanadaKey Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, ChinaThe feeding selectivity of bivalves can play an important role in shaping the structure of phytoplankton communities of natural waters. This could be particularly true in waters with intensive bivalves farming, like Sungo Bay, Northern China. Understanding the role of bivalve feeding behavior is important for assessing how the dense cultivation of bivalves may affect phytoplankton community composition and food web structure in farm areas. In this study, we investigated the feeding selectivity of blue mussel Mytilus coruscus on natural phytoplankton assemblages in Sungo Bay using both optical microscopy and HPLC-pigment analysis. Results showed that cryptophytes dominated the phytoplankton community and made up 66.1% of the total phytoplankton abundance. A comparison of phytoplankton composition between natural and filtered seawater showed that M. coruscus preferred cryptophytes and dinoflagellates than Chaetoceros spp. and Skeletonema spp. Cryptophytes were not detected in gut contents by microscopic observation, while their marker pigment alloxanthin was present, suggesting they were also consumed by M. coruscus and can be readily digested. This highlights the shortcomings of microscopic methods and the significance of HPLC-pigment analysis in obtaining a comprehensive understanding of feeding selectivity of bivalves. The proportions of Chaetoceros spp. and Skeletonema spp. in gut contents were significantly lower than their proportions in the seawater, and contrastingly, the proportions of Cocconeis spp. and Pinnularia spp. showed opposite patterns. The marker pigments prasinoxanthin and zeaxanthin were detected in the gut of M. coruscus indicating that picophytoplankton (e.g., prasinophytes and Synechococcus) are also food sources for this bivalve. This information furthers our understanding of bivalve aquaculture and environment interactions.https://www.frontiersin.org/articles/10.3389/fmars.2022.1070737/fullfeeding selectivitypreferential feedingphytoplanktonpigmentsMytilus coruscusSungo Bay |
| spellingShingle | Tao Jiang Huizhu Pan Huizhu Pan Laura Steeves Zengjie Jiang Ramón Filgueira Ramón Filgueira Øivind Strand Tore Strohmeier Peter J. Cranford Zhengguo Cui Effect of Mytilus coruscus selective filtration on phytoplankton assemblages Frontiers in Marine Science feeding selectivity preferential feeding phytoplankton pigments Mytilus coruscus Sungo Bay |
| title | Effect of Mytilus coruscus selective filtration on phytoplankton assemblages |
| title_full | Effect of Mytilus coruscus selective filtration on phytoplankton assemblages |
| title_fullStr | Effect of Mytilus coruscus selective filtration on phytoplankton assemblages |
| title_full_unstemmed | Effect of Mytilus coruscus selective filtration on phytoplankton assemblages |
| title_short | Effect of Mytilus coruscus selective filtration on phytoplankton assemblages |
| title_sort | effect of mytilus coruscus selective filtration on phytoplankton assemblages |
| topic | feeding selectivity preferential feeding phytoplankton pigments Mytilus coruscus Sungo Bay |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.1070737/full |
| work_keys_str_mv | AT taojiang effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT huizhupan effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT huizhupan effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT laurasteeves effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT zengjiejiang effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT ramonfilgueira effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT ramonfilgueira effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT øivindstrand effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT torestrohmeier effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT peterjcranford effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages AT zhengguocui effectofmytiluscoruscusselectivefiltrationonphytoplanktonassemblages |