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Full-Text Articles in Life Sciences
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Biophysical Factors Impacting Sea Lice Settlement And Survival, Eleanor R. Glahn
Electronic Theses and Dissertations
Atlantic salmon (Salmo salar L.) aquaculture production in Maine is a valuable contributor to the economy, the expansion of which has been challenged by the parasitic salmon louse Lepeophtheirus salmonis. As planktonic organisms, the life of the salmon louse is primarily dictated by the physical conditions of the environment: the temperature for development time, salinity for survival, and current velocity for transport. Salmon lice are obligate parasites for whom the successful infection of a suitable host is critical to completion of their life cycle. However, little is understood about the effects of current velocity on infection success. Hydrodynamic …
Distribution And Relative Abundance Of Reintroduced Atlantic Salmon, Salmo Salar, In Lake Ontario Tributaries Using Environmental Dna, Nabeelah Lulat
Distribution And Relative Abundance Of Reintroduced Atlantic Salmon, Salmo Salar, In Lake Ontario Tributaries Using Environmental Dna, Nabeelah Lulat
Electronic Theses and Dissertations
Plans to reintroduce Atlantic salmon in Lake Ontario tributaries consists of stocking hatchery-reared fish yearly which will help to achieve a self-sustaining population. The issue with reintroduction remains in understanding the distribution of fishes after stocking. Environmental DNA (eDNA) provides a sensitive approach for monitoring that can offer inferences into fish distribution. I determined the distribution of stocked Atlantic salmon downstream from stocking sites using qRT-PCR and metabarcoding. I found that Atlantic salmon eDNA detection was more sensitive using qRT-PCR (51%) versus metabarcoding HTS (18.3%). However, metabarcoding provided data on fish community assemblages, which can help to monitor ecological interactions. …