A5067652408- Genetic diversity and population structure
- Fish Ecology and Management Studies
- Genetic and phenotypic traits in livestock
- Identification and Quantification in Food
- Fish Biology and Ecology Studies
- Genetic Associations and Epidemiology
- Avian ecology and behavior
- Marine animal studies overview
- Environmental DNA in Biodiversity Studies
- Hydrology and Sediment Transport Processes
- Genetic Mapping and Diversity in Plants and Animals
- Insect symbiosis and bacterial influences
- Wildlife Ecology and Conservation
- Insect Resistance and Genetics
- Invertebrate Immune Response Mechanisms
University of New Brunswick
2018-2025
Acadia University
2015-2017
Centre National de la Recherche Scientifique
1999
Université de Tours
1999
Centre de Génétique Moléculaire
1999
The south coast of Newfoundland, Canada (Northwest Atlantic Fisheries Organization (NAFO) Subdivision 3Ps) is known to be a mixing zone for cod ( Gadus morhua ). Tagging and genetic studies have shown from the Northern Southern Gulf St. Lawrence (NAFO Divisions 3Pn, 4RST), Grand Banks (3NO), stock complex (2J3KL) frequent waters 3Ps at various times throughout year, but extent unknown. However, has not been central focus previous large-scale genomic analyses population structure, knowledge...
ABSTRACT Objective The Striped Bass Morone saxatilis is an anadromous fish that has experienced population declines and recoveries throughout its range from the 1960s to present day. While many United States fisheries have reopened since most recent declines, ongoing monitoring required ensure numbers remain stable in long term. Central this need determine extent which major spawning locations contribute coastal stocks. next-generation genomic sequencing can discriminate among closely...
Striped Bass,
Drosophila melanogaster larvae usually react against eggs of the parasitoid wasp Leptopilina boulardi by surrounding them with a multicellular melanotic capsule. The genetic determinism this response has been studied previously using susceptible (non-capsule-forming) and resistant (capsule-forming) strains. results suggest that differences in their encapsulation involve single gene, resistance to (Rlb), two alleles, one being dominant. Rlb confers specific protection is thus probably...
Abstract Sound management of a species requires, among other things, careful consideration their distribution and genetic structure throughout range. Historically, there were three spawning populations Striped Bass Morone saxatilis occurring within the Bay Fundy, Canada (Shubenacadie River, Annapolis Saint John River), but today only known population is found in Shubenacadie Nova Scotia. The last event recorded (albeit unsuccessful) River was 1975 shortly after completion Mactaquac Dam 1968....
Eastern Canis latrans (Coyote) dispersed into northeastern North America during the last century and Nova Scotia in 1970s. En route, Coyotes hybridized extensively with C. lycaon (Eastern Wolf). Coyote populations contain mitochondrial nuclear DNA characteristics of both species. In samples collected from Scotia, Prince Edward Island, New Brunswick, Newfoundland, we found haplotypes characteristic and/or Wolf decreasing haplotype diversity consistent sequential founder events/bottlenecks...
Abstract Barriers such as dams have been cited a serious threat to striped bass survival, especially when they affect or impede migration and access spawning grounds. On the Saint John River, New Brunswick, installation of large Mactaquac Dam in immediate vicinity historic location was suspected caused arrest reproduction collapse native population. In 2014, juvenile confirmed River origin were documented river for first time since 1979. current study, we examined juveniles from 6 years...
Abstract The Purple Sandpiper ( Calidris maritima ) is a medium‐sized shorebird that breeds in the Arctic and winters along northern Atlantic coastlines. Migration routes affiliations between breeding grounds wintering are incompletely understood. Some populations appear to be declining, future management policies for this species will benefit from understanding their migration patterns. This study used two mitochondrial DNA markers 10 microsatellite loci analyze current population structure...
Abstract Fishery managers have struggled for decades to rebuild stocks of Atlantic Cod Gadus morhua in the northwestern Ocean, and resolution current fine‐scale population structure will surely help those efforts. Using double digest restriction‐site associated DNA sequencing, we analyzed 248 adult 215 juvenile collected from areas bordering Canada–USA boundary 2017–2018. Chromosomal inversions linkage group (LG) 2 LG 7 contribute largest amount variance data set. A southwesterly decrease...
In this study, we used the phenotype simulation package naturalgwas to test performance of Zhao's Random Forest method in comparison an uncorrected test, latent factor mixed models (LFMM), genome-wide efficient (GEMMA), and confounder adjusted linear regression (CATE). We created 400 sets phenotypes, corresponding five effect sizes two, five, 15, or 30 causal loci, simulated from two empirical data containing SNPs Striped Bass representing three 13 populations. All association methods were...