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View article: Response of aquatic invertebrate communities to different management strategies in central European fishponds
Response of aquatic invertebrate communities to different management strategies in central European fishponds Open
Fishponds are essential ecosystems, inhabited by many different groups of biota and having commercial and non-commercial functions. Therefore, managing fishponds can be a crucial parameter affecting all biota inhabiting a given fishpond, a…
View article: Winter predatory efficiency and periodicity of the non‐native brown bullhead <i>Ameiurus nebulosus</i>
Winter predatory efficiency and periodicity of the non‐native brown bullhead <i>Ameiurus nebulosus</i> Open
Winter is a challenge for fish in temperate regions as it is likely to create a bottleneck for small‐bodied fish due to starvation. Resource consumption could contribute substantially to the overwinter survival of fish. Nevertheless, fish …
View article: Decryption of Amphipod Cryptic Species: Ecological Differentiation of Syntopic Lineages of a <i>Gammarus</i> Species Complex
Decryption of Amphipod Cryptic Species: Ecological Differentiation of Syntopic Lineages of a <i>Gammarus</i> Species Complex Open
Cryptic species represent an ever‐increasing proportion of discovered biological diversity. Thus, the number of observations of cryptic species co‐occurring in syntopy also increases, raising the question of mechanisms facilitating this ph…
View article: Seasonal changes in trophic ecology of co-occurring freshwater invasive species at a thermal locality
Seasonal changes in trophic ecology of co-occurring freshwater invasive species at a thermal locality Open
We investigated the trophic ecology of three non-native crayfish species (the marbled crayfish Procambarus virginalis , the red swamp crayfish Procambarus clarkii and the spiny-cheek crayfish Faxonius limosus ) and two non-native fishes (t…
View article: Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry
Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry Open
Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem. Due to…
View article: A fresh perspective on carp feeding behavior in an aquaculture pond and its consequences for individual growth
A fresh perspective on carp feeding behavior in an aquaculture pond and its consequences for individual growth Open
The common carp (Cyprinus carpio) is an important species in global aquaculture. To optimize its production, it is necessary to understand its behaviour in relation to environmental and management factors. This study investigated the spati…
View article: Species-specific trophic discrimination factors can reduce the uncertainty of stable isotope analyses
Species-specific trophic discrimination factors can reduce the uncertainty of stable isotope analyses Open
Stable isotope analysis has been broadly used to study food webs, but often relies on inaccurate assumptions of trophic isotopic discriminations, which could lead to misinterpretation of obtained results. While many taxa exhibit similar tr…
View article: Pikeperch (Sander lucioperca) larval rearing optimization: utilization of lactic acid bacteria for improving microbiome diversity and digestive enzyme activity
Pikeperch (Sander lucioperca) larval rearing optimization: utilization of lactic acid bacteria for improving microbiome diversity and digestive enzyme activity Open
Lactic acid bacteria (LAB) probiotics were evaluated for their impact on the microbiota and development of pikeperch ( Sander lucioperca ) larvae during their initial feeding stage (first 21 days). Pikeperch larvae were exposed to LAB prob…
View article: Live feed enrichments using microalgae for pikeperch ( <scp> <i>Sander lucioperca</i> </scp> ) larval culture
Live feed enrichments using microalgae for pikeperch ( <span> <i>Sander lucioperca</i> </span> ) larval culture Open
This trial aimed to customize pikeperch ( Sander lucioperca ) larval nutrition using live feed enrichments based on Chlorella vulgaris and Trachydiscus minutus . Pikeperch larvae were fed with rotifers and Artemia enriched with C. vulgaris…
View article: Sustained ecological impacts of invasive crayfish following claw injury
Sustained ecological impacts of invasive crayfish following claw injury Open
The rapid acceleration of human-mediated translocation of species has led to the introduction of thousands of species outside their native range with severe consequences for global biodiversity. Freshwater crayfish are a particularly succe…
View article: Size-dependent functional response of the round goby Neogobius melanostomus; implications for more accurate impact potential calculation
Size-dependent functional response of the round goby Neogobius melanostomus; implications for more accurate impact potential calculation Open
Abundance and per-capita foraging efficiency are essential factors for predicting and quantifying an invasive predator impact on prey, i.e., the impact potential (IP). However, population structure is not included in the calculation, and I…
View article: Sustained ecological impacts of invasive crayfish following claw injury
Sustained ecological impacts of invasive crayfish following claw injury Open
International audience
View article: Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture
Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture Open
This trial aimed to customize pikeperch ( Sander lucioperca ) larval nutrition using live feed enrichments based on Chlorella vulgaris and Trachydiscus minutus . Pikeperch larvae were fed with rotifers and Artemia enriched with Chlorella v…
View article: Strong temporal variation of consumer δ13C value in an oligotrophic reservoir is related to water level fluctuation
Strong temporal variation of consumer δ13C value in an oligotrophic reservoir is related to water level fluctuation Open
Using stable carbon and nitrogen isotope analysis (δ 13 C and δ 15 N) to assess trophic interactions in freshwater ecosystems is a well established method, providing insight into ecosystem functioning. However, the spatial and temporal var…
View article: A contribution on the morphometrics of the thick-clawed crayfish Pontastacus pachypus (Rathke, 1837) (Decapoda, Astacoidea, Astacidae)
A contribution on the morphometrics of the thick-clawed crayfish Pontastacus pachypus (Rathke, 1837) (Decapoda, Astacoidea, Astacidae) Open
The thick–clawed crayfish Pontastacus pachypus (Rathke, 1837) is an endangered, and the least known, crayfish species in Europe. Currently, detailed information regarding the morphology, ecology and reproduction of thick–clawed crayfish is…
View article: The effect of water temperature, prey availability and presence of conspecifics on prey consumption of pikeperch (Sander lucioperca)
The effect of water temperature, prey availability and presence of conspecifics on prey consumption of pikeperch (Sander lucioperca) Open
In this study, the effect of water temperature, predator's sex, prey density, and the presence of conspecifics on prey consumption of pikeperch (Sander lucioperca) was experimentally tested. In Experiment 1, predators of both sexes [males:…
View article: Short‐term thermal acclimation modulates predator functional response
Short‐term thermal acclimation modulates predator functional response Open
Phenotypic plastic responses to temperature can modulate the kinetic effects of temperature on biological rates and traits and thus play an important role for species adaptation to climate change. However, there is little information on ho…
View article: The Invasive Round Goby Neogobius melanostomus as a Potential Threat to Native Crayfish Populations
The Invasive Round Goby Neogobius melanostomus as a Potential Threat to Native Crayfish Populations Open
Despite the spread of round goby Neogobius melanostomus into freshwater streams, there is a lack of information with respect to its effect on macroinvertebrate communities, especially crustaceans. We studied foraging efficiency of N. melan…
View article: Survival, Growth, and Reproduction: Comparison of Marbled Crayfish with Four Prominent Crayfish Invaders
Survival, Growth, and Reproduction: Comparison of Marbled Crayfish with Four Prominent Crayfish Invaders Open
Biological invasions are increasingly recognized ecological and economic threats to biodiversity and are projected to increase in the future. Introduced freshwater crayfish in particular are protruding invaders, exerting tremendous impacts…
View article: Absolute interferometry for fast and precise radius measurement
Absolute interferometry for fast and precise radius measurement Open
A novel radius of the curvature measurement method for optical spherical surfaces using absolute interferometry is proposed. A measurement setup is designed and built around a common-path Fizeau interferometer. The cavity length (volume of…
View article: Round goby <i>versus</i> marbled crayfish: alien invasive predators and competitors
Round goby <i>versus</i> marbled crayfish: alien invasive predators and competitors Open
Aquatic biodiversity is threatened by spread of invasive alien species. Round goby Neogobius melanostomus is an invasive fish in large European rivers as well as in coastal waters near their mouths and marbled crayfish Procambarus virginal…
View article: Predatory functional responses under increasing temperatures of two life stages of an invasive gecko
Predatory functional responses under increasing temperatures of two life stages of an invasive gecko Open
The direct effects of temperature increases and differences among life-history might affect the impacts of native and invasive predators on recipient communities. Comparisons of functional responses can improve our understanding of underly…
View article: Improvements on Live Feed Enrichments for Pikeperch (Sander lucioperca) Larval Culture
Improvements on Live Feed Enrichments for Pikeperch (Sander lucioperca) Larval Culture Open
This study focused on supplementing pikeperch (Sander lucioperca) larvae with rotifers fed with Chlorella vulgaris during the first 15 days post hatching (dph). Larvae were fed a combination of rotifers and artemia under three different en…
View article: Use of Lactic Acid Bacteria During Pikeperch (Sander lucioperca) Larval Rearing
Use of Lactic Acid Bacteria During Pikeperch (Sander lucioperca) Larval Rearing Open
This trial tested the use of lactic acid bacteria (LAB) on pikeperch (Sander lucioperca) larvae during their first feeding. The trial included the use of two probiotic treatments and one control (no probiotics). Pikeperch larvae were expos…