Coregonus
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Life-history variability and conservation status of landlocked Atlantic salmon: an overview Open
Nonanadromous Atlantic salmon (Salmo salar) exhibit a combination of variation in life history, habitat, and species co-existence matched by few vertebrates. Distributed in eastern North America and northern Europe, habitat ranges from hun…
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Climate and productivity shape fish and invertebrate community structure in subarctic lakes Open
Summary Climate change and land‐use intensification are increasing productivity in subarctic lakes. Simultaneously, fish and invertebrate species adapted to temperate conditions are expanding their range northwards into subarctic habitats.…
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Speciation and genetic divergence of three species of charr from ancient Lake El'gygytgyn (Chukotka) and their phylogenetic relationships with other representatives of the genus<i>Salvelinus</i> Open
The diversity of phenotypically different and often reproductively isolated lacustrine forms of charrs of the genus Salvelinus represents a substantial problem for taxonomists and evolutionary biologists. Based on the analysis of variabili…
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Polygenic selection drives the evolution of convergent transcriptomic landscapes across continents within a Nearctic sister species complex Open
In contrast to the plethora of studies focusing on the genomic basis of adaptive phenotypic divergence, the role of gene expression during speciation has been much less investigated and consequently less understood. Yet, the convergence of…
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A de novo chromosome‐level genome assembly of <i>Coregonus</i> sp. “ <i>Balchen</i> ”: One representative of the Swiss Alpine whitefish radiation Open
Salmonids are of particular interest to evolutionary biologists due to their incredible diversity of life‐history strategies and the speed at which many salmonid species have diversified. In Switzerland alone, over 30 species of Alpine whi…
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Managing cryptic biodiversity: Fine‐scale intralacustrine speciation along a benthic gradient in Alpine whitefish (<i>Coregonus</i>spp.) Open
Whitefish ( Coregonus spp.) are an important catch for many freshwater fisheries, particularly in Switzerland. In support of this, supplemental stocking of whitefish species is carried out, despite lacking complete knowledge of the extent,…
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Differential gene expression during early development in recently evolved and sympatric Arctic charr morphs Open
Phenotypic differences between closely related taxa or populations can arise through genetic variation or be environmentally induced, leading to altered transcription of genes during development. Comparative developmental studies of closel…
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Trophic niche overlap between round sardinella (<i>Sardinella aurita</i>) and sympatric pelagic fish species in the Western Mediterranean Open
The northward expansion of round sardinella ( Sardinella aurita ) in the Mediterranean Sea, together with declines and fluctuations in biomass and landings of European sardine ( Sardina pilchardus ) and anchovy ( Engraulis encrasicolus ) o…
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Long‐term ecological studies in northern lakes—challenges, experiences, and accomplishments Open
We review three long‐term research programs performed over the last four decades on the ecology and management of oligotrophic lake systems with different fish communities at 69° N in Norway. Through whole‐lake perturbation experiments, in…
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Determination and Comparison of Physical Meat Quality Parameters of Percidae and Salmonidae in Aquaculture Open
Although aquaculture has been the fastest growing food sector for decades, there are no standardized parameters for most of the fish species regarding physical meat quality. Therefore, this study provides for the first time an overview of …
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Population abundance in arctic grayling using genetics and close‐kin mark‐recapture Open
Arctic Grayling ( Thymallus arcticus ) are among the most widely distributed and abundant freshwater fish in the Yukon Territory of Canada, yet little information exists regarding their broad and fine‐scale population structures or the num…
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Past selection impacts the strength of an aquatic trophic cascade Open
In complex food webs, interactions among species in different trophic levels can generate cascading indirect effects that couple top predators with primary producers, thereby affecting ecosystem functioning. Natural selection imposed by to…
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Genetic differentiation between and within ecotypes of pike (<span><i>Esox lucius</i></span>) in the Baltic Sea Open
Aquatic systems often lack physical boundaries for gene flow, but ecological and behavioural barriers can form surprisingly fine spatial scale genetic patterns that challenge traditional, large scale management. To detect fine spatial scal…
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Effect of Microplastics on the Activity of Digestive and Oxidative-Stress-Related Enzymes in Peled Whitefish (Coregonus peled Gmelin) Larvae Open
Microplastics (MPs) are emergent pollutants in freshwater environments and may impact aquatic organisms, including those of nutritional value. The specific activities of digestive and antioxidant enzymes can be used as good bioindicators o…
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Relative abundance, diet and growth of perch (Perca fluviatilis) and roach (Rutilus rutilus) at Tvärminne, northern Baltic Sea, in 1975 and 1997: responses to eutrophication? Open
The coastal waters of the northern Baltic Sea have been undergoing a progressive process of eutrophication in recent decades. Gill net samples were taken in the Tvärminne area (SW Finland) to assess the effects of coastal eutrophication on…
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Ecological divergence in sympatry causes gene misexpression in hybrids Open
Ecological speciation occurs when reproductive isolation evolves as a byproduct of adaptive divergence between populations. Selection favouring gene regulatory divergence between species could result in transgressive levels of gene express…
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Ecological speciation in a generalist consumer expands the trophic niche of a dominant predator Open
Ecological speciation – whereby an ancestral founder species diversifies to fill vacant niches – is a phenomenon characteristic of newly formed ecosystems. Despite such ubiquity, ecosystem-level effects of such divergence remain poorly und…
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The effect of diet on the structure of gut bacterial community of sympatric pair of whitefishes (<i>Coregonus lavaretus</i>): one story more Open
In the Coregonus lavaretus complex may be found lacustrine sympatric pairs, which serves as an intriguing model for studying different aspects of fish evolutionary biology. One such sympatric whitefish pair inhabits Teletskoye Lake (West S…
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An Analysis of Lake Morphometric and Land‐Use Characteristics that Promote Persistence of Cisco in Indiana Open
Remnant populations of Cisco Coregonus artedi persist at the southern extent of their range among northern Indiana's glacial lakes, where most of their populations have become extirpated during the past century. Land‐use practices have lik…
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Bomb radiocarbon age validation for the long-lived, unexploited Arctic fish species Coregonus clupeaformis Open
The growth rates of freshwater fish in the Arctic would be expected to be very low, but some previous studies of lake whitefish (Coregonus clupeaformis) have reported relatively rapid growth and longevity estimates of less than 15 years. W…
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Comparative Genomic Analyses and a Novel Linkage Map for Cisco ( <i>Coregonus artedi)</i> Provide Insights into Chromosomal Evolution and Rediploidization Across Salmonids Open
Whole-genome duplication (WGD) is hypothesized to be an important evolutionary mechanism that can facilitate adaptation and speciation. Genomes that exist in states of both diploidy and residual tetraploidy are of particular interest, as m…
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Illumina Sequencing Reveals Aberrant Expression of MicroRNAs and Their Variants in Whitefish (Coregonus lavaretus) Liver after Exposure to Microcystin-LR Open
Molecular analyses show that challenging fish with microcystin-LR (MC-LR) causes perturbations of microRNA (miRNA) signaling. However, the significance and scope of these alterations is currently unknown. To address this issue, we studied …
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Growth and size-selective mortality of vendace (Coregonus albula (L.)) and whitefish (C. lavaretus L.) larvae Open
Vendace (Coregonus albula (L.)) and whitefish (C. lavaretus L.) larvae were sampled by stratified random sampling design in four Finnish lakes. Otolith microstructure analysis was used to investigate individual age, hatching time and growt…
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Mercury Accumulation, and the Mercury-PCB-Sex Interaction, in Lake Whitefish (Coregonus clupeaformis) Open
We determined whole-fish Hg concentrations of 26 female and 34 male adult lake whitefish (Coregonus clupeaformis) from northern Lake Huron captured during November 2010. Subsampling from these 60 fish, Hg concentration was also determined …
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Declines in lake whitefish larval densities after dreissenid mussel establishment in Lake Huron Open
Lake whitefish (Coregonus clupeaformis) is an ecologically and commercially significant species across the Laurentian Great Lakes. Over the past 20 years, lake whitefish population abundance has substantially declined across lakes Huron an…
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A taxonomic revision of the whitefish of lakes Brienz and Thun, Switzerland, with descriptions of four new species (Teleostei, Coregonidae) Open
The alpha taxonomy of the endemic whitefish of lakes Brienz and Thun, Switzerland, is revised. We evaluate the status of seven known species: Coregonus steinmanni sp. nov. , Coregonus profundus sp. nov. and Coregonus acrinasus sp. nov. are…
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The influence of ontogeny and prey abundance on feeding ecology of age‐0 Lake Whitefish (<i>Coregonus clupeaformis</i>) in southeastern Lake Michigan Open
A shift towards oligotrophic conditions in Lake Michigan has led to concern that altered trophic pathways are leading to lower early life survival and recruitment for Lake Whitefish ( Coregonus clupeaformis ). This study evaluated ontogene…
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Nanopore Amplicon Sequencing Reveals Molecular Convergence and Local Adaptation of Rhodopsin in Great Lakes Salmonids Open
Local adaptation can drive diversification of closely related species across environmental gradients and promote convergence of distantly related taxa that experience similar conditions. We examined a potential case of adaptation to novel …
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Groundtruthing of pelagic forage fish detected by hydroacoustics in a whale feeding area using environmental DNA Open
Conservation of whales, considered as umbrella species in marine environments, requires to be able to understand their relationships with ecosystem components such as prey species, including pelagic fish. However, studying such relationshi…
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Turning summer into winter: nutrient dynamics, temperature, density dependence and invasive species drive bioenergetic processes and growth of a keystone coldwater fish Open
A combination of global changes such as species invasions, climate change and nutrient pollution have altered ecosystems, food webs and the bioenergetic processes that control growth. These changes are especially pronounced in freshwater e…