Nathalie R. Le François
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View article: Temperature and Pressure Shaped the Evolution of Antifreeze Proteins in Polar and Deep Sea Zoarcoid Fishes
Temperature and Pressure Shaped the Evolution of Antifreeze Proteins in Polar and Deep Sea Zoarcoid Fishes Open
Antifreeze proteins (AFPs) have enabled teleost fishes to repeatedly colonize polar seas. Four AFP types have convergently evolved in several fish lineages. AFPs inhibit ice crystal growth and lower tissue freezing point. In lineages with …
View article: Biology and Conservation of Moxostoma spp. Occurring in Canada with Emphasis on the Copper Redhorse (M. hubbsi, Legendre 1952), an Endemic Species on an Extinction Trajectory
Biology and Conservation of Moxostoma spp. Occurring in Canada with Emphasis on the Copper Redhorse (M. hubbsi, Legendre 1952), an Endemic Species on an Extinction Trajectory Open
Freshwater fishes are one of the most threatened animal taxa in North America. In Canada, roughly 30% of the occurring species are currently listed and under protection, including redhorses. This review covers Moxostoma spp. ecology, biolo…
View article: Projected warming disrupts embryonic development and hatch timing in Antarctic fish
Projected warming disrupts embryonic development and hatch timing in Antarctic fish Open
Rising ocean temperatures pose significant threats to marine ectotherms. Sensitivity to temperature change varies across life stages, with embryos often being less tolerant to thermal perturbation than adults. Antarctic notothenioid fishes…
View article: Biology and Conservation of <em>Moxostoma </em>spp. Occurring in Canada with Emphasis on the Copper Redhorse (<em>M</em>. <em>hubbsi</em>, Legendre 1952), an Endemic Species on an Extinction Trajectory
Biology and Conservation of <em>Moxostoma </em>spp. Occurring in Canada with Emphasis on the Copper Redhorse (<em>M</em>. <em>hubbsi</em>, Legendre 1952), an Endemic Species on an Extinction Trajectory Open
Freshwater fishes are one of the most threatened animal taxa in North America. In Canada, roughly 30% of the occurring species are currently listed and under protection including redhorses. This review covers Moxostoma spp. ecology, biolog…
View article: Biology and Conservation of <em>Moxostoma </em>spp. Occurring in Canada with Emphasis on the Copper Redhorse (<em>M</em>. <em>hubbsi</em>, Legendre 1952), an Endemic Species on an Extinction Trajectory
Biology and Conservation of <em>Moxostoma </em>spp. Occurring in Canada with Emphasis on the Copper Redhorse (<em>M</em>. <em>hubbsi</em>, Legendre 1952), an Endemic Species on an Extinction Trajectory Open
Freshwater fishes are one of the most threatened animal taxa in North America. In Canada, roughly 30% of the occurring species are currently listed and under protection including redhorses. This review covers Moxostoma spp. ecology, biolog…
View article: Oxidative stress and growth performance are modulated by polyunsaturated fatty acids in Arctic charr, brook charr and their reciprocal hybrids
Oxidative stress and growth performance are modulated by polyunsaturated fatty acids in Arctic charr, brook charr and their reciprocal hybrids Open
In fish, polyunsaturated fatty acids (PUFAs) are essential structural elements in cellular membranes, participate in pathway regulation and act as important energy storage sources for optimum growth performance. However, they are also high…
View article: Temperature and Pressure Shaped the Evolution of Antifreeze Proteins in Polar and Deep Sea Zoarcoid Fishes
Temperature and Pressure Shaped the Evolution of Antifreeze Proteins in Polar and Deep Sea Zoarcoid Fishes Open
Antifreeze proteins (AFPs) have enabled teleost fishes to repeatedly colonize polar seas. Four AFP types have convergently evolved in several fish lineages. AFPs inhibit ice crystal growth and lower cellular freezing point. In lineages wit…
View article: Cultivation of Brook Charr <i>Salvelinus fontinalis</i>: The Challenges of Disease Control and the Promise of Microbial Ecology Management
Cultivation of Brook Charr <i>Salvelinus fontinalis</i>: The Challenges of Disease Control and the Promise of Microbial Ecology Management Open
Among salmonids, brook charr, Salvelinus fontinalis has been gaining popularity in aquaculture. However, major limitations associated with opportunistic diseases that result from unstable egg and fry‐rearing conditions are experienced unde…
View article: Does chronic exposure to moderate hypoxia affect growth, physiological and oxidative stress biomarkers in adult spotted wolffish ( <i>Anarhichas minor</i> ) and the hybrid <i>A. minor × A. lupus</i> ?
Does chronic exposure to moderate hypoxia affect growth, physiological and oxidative stress biomarkers in adult spotted wolffish ( <i>Anarhichas minor</i> ) and the hybrid <i>A. minor × A. lupus</i> ? Open
Both in their natural habitat (estuaries, marine coastal environment, ocean depths and freshwater lakes) or in captivity conditions (land‐based, open‐sea aquaculture and aquariums), exposure to hypoxia can have direct detrimental effects o…
View article: Nature-based coastal restoration: Development of an early-rearing production protocol of sugar kelp (Saccharina latissima Linnaeus) for bottom planting activities in the Gulf of St-Lawrence (Québec, Canada)
Nature-based coastal restoration: Development of an early-rearing production protocol of sugar kelp (Saccharina latissima Linnaeus) for bottom planting activities in the Gulf of St-Lawrence (Québec, Canada) Open
Successful bottom planting of indigenous macroalgae Saccharina latissima aimed at coastal restoration purposes require the mass production in controlled conditions of strongly fixed, healthy sporophytes followed by optimal transfer techniq…
View article: Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities
Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities Open
The first artificially fertilized spotted wolffish (Anarhichas minor) eggs hatched in Norway in the mid-1990s as this species was considered by Norwegian authorities to be a top candidate species for cold-water aquaculture in the North Atl…
View article: The status of spotted wolffish, <scp><i>Anarhichas minor</i></scp>: A commercially ready species for U.S. marine aquaculture?
The status of spotted wolffish, <span><i>Anarhichas minor</i></span>: A commercially ready species for U.S. marine aquaculture? Open
The requirements to rear spotted wolffish, Anarhichas minor , a cold water, demersal fish, native to the north Atlantic Ocean, have been developed over the past 25 years (since 1990s) and it now is commercially produced in one fish farm in…
View article: Thermal tolerance and fish heart integrity: fatty acids profiles as predictors of species resilience
Thermal tolerance and fish heart integrity: fatty acids profiles as predictors of species resilience Open
The cardiovascular system is a major limiting system in thermal adaptation, but the exact physiological mechanisms underlying responses to thermal stress are still not completely understood. Recent studies have uncovered the possible role …
View article: From Africa to Antarctica: Exploring the Metabolism of Fish Heart Mitochondria Across a Wide Thermal Range
From Africa to Antarctica: Exploring the Metabolism of Fish Heart Mitochondria Across a Wide Thermal Range Open
The thermal sensitivity of ectotherms is largely dictated by the impact of temperature on cellular bioenergetics, particularly on mitochondrial functions. As the thermal sensitivity of bioenergetic pathways depends on the structural and ki…
View article: Hybridization between char species (<i>Salvelinus alpinus</i> and <i>Salvelinus fontinalis</i>): a fast track for novel allometric trajectories
Hybridization between char species (<i>Salvelinus alpinus</i> and <i>Salvelinus fontinalis</i>): a fast track for novel allometric trajectories Open
Hybridization between closely related species can generate genetic and phenotypic variation, providing valuable biological material to assess the physiological impact of the structural or functional variability of different organs. In the …
View article: Embryogenesis and early skeletogenesis in the antarctic bullhead notothen, <i>Notothenia coriiceps</i>
Embryogenesis and early skeletogenesis in the antarctic bullhead notothen, <i>Notothenia coriiceps</i> Open
Background: Environmental temperature influences rates of embryonic development, but a detailed staging series for vertebrate embryos developing in the subzero cold of Antarctic waters is not yet available from fertilization to hatching. G…