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Invasive slipper limpets (Crepidula fornicata) act like a sink, rather than source, of Vibrio spp. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02868-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AbstractA large knowledge gap exists regarding the disease profile and pathologic condition of the invasive, slipper limpet Crepidula fornicata. To help address this, we performed a year-long health survey at two sites in South Wales, UK – subtidal Swansea Bay and intertidal Milford Haven. In total, 1,800 limpets were screened systematically for haemolymph bacterial burdens using both general and vibrio-selective growth media (TSA + 2% NaCl and TCBS, respectively), haemolymph (blood) inspection using microscopy, a PCR-based assay targeting Vibrio spp., and multi-tissue histology. Over 99% of haemolymph samples contained cultivable bacterial colony-forming units, and 83% of limpets tested positive for the presence of vibrios via PCR (confirmed via Sanger sequencing). Vibrio presence did not vary greatly between sites, yet a strong seasonal effect was observed with significantly higher bacterial loads during the summer. Binomial logistic regression models revealed larger (older) limpets were more likely to harbour vibrios, and the growth of bacteria on TCBS was a key predictor for PCR-based vibrio detection. Histological assessment of > 340 animals revealed little evidence of inflammation, sepsis or immune reactivity despite the gross bacterial numbers. We contend that slipper limpets are not highly susceptible to bacteriosis at either site, and do not harbour vibrios known to be pathogenic to humans. The lack of susceptibility to local pathogenic bacteria may explain, in part, the invasion success of C. fornicata across this region.
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Qu J, Xu Y, Cui Y, Wu S, Wang L, Liu X, Xing Z, Guo X, Wang S, Li R, Sun X, Li X, Wang X, Liu T, Wang X. MODB: a comprehensive mitochondrial genome database for Mollusca. DATABASE-THE JOURNAL OF BIOLOGICAL DATABASES AND CURATION 2021; 2021:6369039. [PMID: 34510194 PMCID: PMC8435058 DOI: 10.1093/database/baab056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/11/2021] [Accepted: 08/21/2021] [Indexed: 11/14/2022]
Abstract
Mollusca is the largest marine phylum, comprising about 23% of all named marine organisms, Mollusca systematics are still in flux, and an increase in human activities has affected Molluscan reproduction and development, strongly impacting diversity and classification. Therefore, it is necessary to explore the mitochondrial genome of Mollusca. The Mollusca mitochondrial database (MODB) was established for the Life and Health Big Data Center of Yantai University. This database is dedicated to collecting, sorting and sharing basic information regarding mollusks, especially their mitochondrial genome information. We also integrated a series of analysis and visualization tools, such as BLAST, MUSCLE, GENEWISE and LASTZ. In particular, a phylogenetic tree was implemented in this database to visualize the evolutionary relationships between species. The original version contains 616 species whose mitochondrial genomes have been sequenced. The database provides comprehensive information and analysis platform for researchers interested in understanding the biological characteristics of mollusks. Database URL: http://modb.ytu.edu.cn/
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Affiliation(s)
- Jiangyong Qu
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Yanran Xu
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Yutong Cui
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Sen Wu
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Lijun Wang
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xiumei Liu
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Zhikai Xing
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xiaoyu Guo
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Shanshan Wang
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Ruoran Li
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xiaoyue Sun
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xiang Li
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xiyue Wang
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Tao Liu
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
| | - Xumin Wang
- College of Life Sciences, Yantai University, No.30 Qingquan Road, Laishan District, Yantai, Shandong 264005, China
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de Haas TJ, Connell LJ, Greenfield R. Investigating the effects of hypersalinity on the cardiac performance of the invasive gastropod Melanoides tuberculata (Müller, 1774). AFRICAN ZOOLOGY 2021. [DOI: 10.1080/15627020.2021.1962737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- TJ de Haas
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
| | - LJ Connell
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
| | - R Greenfield
- Department of Zoology, University of Johannesburg, Johannesburg, South Africa
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Hao DM, Sy DT, Tuyet DTA, Hiep LM, Dat NT, Huong DTT, Thung DC, Nhon DH, Lan TD, Van Quan N. Distribution and density of Lutraria rhynchaena Jonas, 1844 relate to sediment while reproduction shows multiple peaks per year in Cat Ba-Ha Long Bay, Vietnam. Open Life Sci 2020; 15:721-734. [PMID: 33817260 PMCID: PMC7747507 DOI: 10.1515/biol-2020-0072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 07/10/2020] [Accepted: 07/14/2020] [Indexed: 11/15/2022] Open
Abstract
Lutraria rhynchaena Jonas, 1844 is of great commercial interest, but its reserves have dramatically declined over recent decades. Therefore, there is an urgent need of scientific basis to propose effective fishery management measures and improve artificial aquaculture of the clam. In this study, we investigated the distribution and density of L. rhynchaena, sediment characteristics, and established the clam's reproductive cycle through monthly observations from August 2017 to July 2018. The study results showed that distribution and density of clams are related to sediment types, and the sediment type of medium sand is likely the best benthic substrate for the clams. The spawning of clams occurred throughout the year with three spawning peaks in January, April and September. For the sustainable management of the clam resource in Cat Ba-Ha Long Bay, the fishery authorities can issue a ban on harvest of the clam in spawning peak months in January, April and September.
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Affiliation(s)
- Do Manh Hao
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, No. 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi City, Vietnam
| | - Do Trung Sy
- Institute of Chemistry, Vietnam Academy of Science and Technology, No. 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi City, Vietnam
| | - Dao Thi Anh Tuyet
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Le Minh Hiep
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Nguyen Tien Dat
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Do Thi Thu Huong
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Do Cong Thung
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Dang Hoai Nhon
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
| | - Tran Dinh Lan
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, No. 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi City, Vietnam
| | - Nguyen Van Quan
- Institute of Marine Environment and Resources, Vietnam Academy of Science and Technology, No. 246 Da Nang Street, Ngo Quyen District, Hai Phong City, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, No. 18 Hoang Quoc Viet Street, Cau Giay District, Ha Noi City, Vietnam
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