2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/24/2018 | 2:15 PM - 2:30 PM | GENETIC EVIDENCE SUGGESTS MULTIPLE INTRODUCTIONS OF THE INVASIVE FRESHWATER SNAIL, MELANOIDES TUBERCULATA, IN FLORIDA, USA. | 410 A
GENETIC EVIDENCE SUGGESTS MULTIPLE INTRODUCTIONS OF THE INVASIVE FRESHWATER SNAIL, MELANOIDES TUBERCULATA, IN FLORIDA, USA.
Melanoides tuberculata is a popular freshwater aquarium snail that has invaded aquatic systems throughout the world. In these invaded systems, including Florida, it is known to disrupt ecosystems and spread exotic pathogens that can impair both wildlife and human health. Here, we evaluated the dispersal of M. tuberculata using the mitochondria gene cytochrome oxidase (CO1) to determine if established snail populations in Florida arose via random mechanisms (e.g. aquarium dumping) measured as genetically dissimilar populations, or natural spread mechanisms (e.g. movement among inter-connected waterways) measured as genetically similar populations. From 11 spatially discrete populations head tissues of individuals were removed for DNA extraction, amplification, and CO1 sequencing (n = 100). Results showed an overall high degree of dissimilar genetic structure among all populations. These findings strongly suggest that snails invaded locations in multiple, non-related events which we suspect could be linked to illegal aquarium dumping. As such, more effort to increase public awareness of the hazards of this snail to native fauna and prevention of aquarium dumplings into aquatic systems is paramount to prevent the further spread of this snail.
- Dispersal
- Population
- Genetics
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Presenters/Authors
Lori Tolley-Jordan
(), Jacksonville State University, ljordan@jsu.edu;
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Jessica Wooten
(), Piedmont College, jeagle@piedmont.edu;
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Michael Chadwick
(), King's College London, michael.chadwick@kcl.ac.uk;
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