Juvenile fish
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Single and combined effects of microplastics and mercury on juveniles of the European seabass (Dicentrarchus labrax): Changes in behavioural responses and reduction of swimming velocity and resistance time Open
Microplastics and mercury are environmental pollutants of great concern. The main goal of the present study was to investigate the effects of these pollutants, both individually and in binary mixtures, on the swimming performance of juveni…
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The malleable gut microbiome of juvenile rainbow trout (Oncorhynchus mykiss): Diet-dependent shifts of bacterial community structures Open
Plant-derived protein sources are the most relevant substitutes for fishmeal in aquafeeds. Nevertheless, the effects of plant based diets on the intestinal microbiome especially of juvenile Rainbow trout (Oncorhynchus mykiss) are yet to be…
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Invasive silver carp is empirically linked to declines of native sport fish in the Upper Mississippi River System Open
Empirical assessments of the influence of invasive species on native species are infrequent because the required long-term data are rarely available. The invasion of silver carp in the Upper Mississippi River System (UMRS) provides a uniqu…
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Density‐ and size‐dependent mortality in fish early life stages Open
The importance of survival and growth variations early in life for population dynamics depends on the degrees of compensatory density dependence and size dependence in survival at later life stages. Quantifying density‐ and size‐dependent …
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Extensive hybridization following a large escape of domesticated Atlantic salmon in the Northwest Atlantic Open
Domestication is rife with episodes of interbreeding between cultured and wild populations, potentially challenging adaptive variation in the wild. In Atlantic salmon, Salmo salar , the number of domesticated individuals far exceeds wild i…
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Simulated eutrophication and browning alters zooplankton nutritional quality and determines juvenile fish growth and survival Open
The first few months of life is the most vulnerable period for fish and their optimal hatching time with zooplankton prey is favored by natural selection. Traditionally, however, prey abundance (i.e., zooplankton density) has been consider…
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Contrasting feeding habits of post-larval and adult Astyanax cavefish Open
International audience
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Fish larvae dynamics in temperate estuaries: A review on processes, patterns and factors that determine recruitment Open
Early life stages of fish (eggs and larvae) are particularly vulnerable with mortality rates of up to 99% recorded for a large number of species. High mortality rates result from the limited swimming ability of larvae preventing them from …
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Metabolic and molecular stress responses of European seabass, Dicentrarchus labrax at low and high temperature extremes Open
Extreme water temperatures related to global climate change represent a significant challenge in terms of fish welfare and aquaculture productivity. Understanding the effect of more frequent and extended extreme temperature events on physi…
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Juvenile fish assemblages in temperate rocky reefs are shaped by the presence of macro-algae canopy and its three-dimensional structure Open
Arborescent macro-algae forests covering temperate rocky reefs are a known habitat for juvenile fishes. However, in the Mediterranean, these forests are undergoing severe transformations due to pressures from global change. In our study, j…
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Remote underwater video reveals higher fish diversity and abundance in seagrass meadows, and habitat differences in trophic interactions Open
Seagrass meadows play a key ecological role as nursery and feeding grounds for multiple fish species. Underwater Visual Census (UVC) has been historically used as the non-extractive method to characterize seagrass fish communities, however…
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Juvenile life-history diversity and population stability of spring Chinook salmon in the Willamette River basin, Oregon Open
Migratory and rearing pathways of juvenile spring Chinook salmon (Oncorhynchus tshawytscha) were documented in the Willamette River basin to identify life histories and estimate their contribution to smolt production and population stabili…
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Using species distribution models to describe essential fish habitat in Alaska Open
Describing essential habitat is an important step toward understanding and conserving harvested species in ecosystem-based fishery management. Using data from fishery-independent ichthyoplankton, groundfish surveys, and commercial fisherie…
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Lagoon nurseries make a major contribution to adult populations of a highly prized coastal fish Open
This study investigated the contributions of five putative nursery areas, namely four coastal lagoons and the marine coastal zone, to the local offshore fishery of the gilthead sea bream Sparus aurata , in the Gulf of Lion (NW Mediterranea…
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Warm, dry winters truncate timing and size distribution of seaward‐migrating salmon across a large, regulated watershed Open
Ecologists are pressed to understand how climate constrains the timings of annual biological events (phenology). Climate influences on phenology are likely significant in estuarine watersheds because many watersheds provide seasonal fish n…
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Effects of Thermal Stress on the Gut Microbiome of Juvenile Milkfish (Chanos chanos) Open
Milkfish, an important aquaculture species in Asian countries, are traditionally cultured in outdoor-based systems. There, they experience potentially stressful fluctuations in environmental conditions, such as temperature, eliciting chang…
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Toxicology across scales: Cell population growth in vitro predicts reduced fish growth Open
Cells in vitro can save lives of experimental fish used in chemical safety testing.
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Hot eats and cool creeks: juvenile Pacific salmonids use mainstem prey while in thermal refuges Open
Thermal refuges form important habitat for cold-water fishes in the face of rising temperatures. As fish become concentrated in refuges, food resources may become depleted. In this study, we used invertebrate drift sampling and fish densit…
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Contested Paradigm in Raising Zebrafish (<i>Danio rerio</i>) Open
The current body of work on rearing larval/juvenile zebrafish is based on (1) utilization of freshwater and (2) diurnal light/dark cycle, (3) provision of live feed at modest density, and (4) culture in high visibility environment. We chal…
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Toward a phenological mismatch in estuarine pelagic food web? Open
Alterations of species phenology in response to climate change are now unquestionable. Until now, most studies have reported precocious occurrence of life cycle events as a major phenological response. Desynchronizations of biotic interact…
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A suitable anaesthetic protocol for metamorphic zebrafish Open
Zebrafish are frequently used as a means to investigate development. These studies increasingly require repeated anaesthesia of zebrafish during juvenile (i.e. metamorphic) stages. The effects of anaesthesia during this time remain poorly …
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Condition Indices as Surrogates of Energy Density and Lipid Content in Juveniles of Three Fish Species Open
To guide the selection of condition indices for juvenile fishes, we compared the ability of several indirect condition indices (those based on length–mass relationships, the hepatosomatic index, and relative lipid estimates from the Distel…
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Impact of multiple stressors on juvenile fish in estuaries of the northeast Pacific Open
A key step in identifying global change impacts on species and ecosystems is to quantify effects of multiple stressors. To date, the science of global change has been dominated by regional field studies, experimental manipulation, meta‐ana…
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Configuration of Gut Microbiota Structure and Potential Functionality in Two Teleosts under the Influence of Dietary Insect Meals Open
Insect meals are considered promising, eco-friendly, alternative ingredients for aquafeed. Considering the dietary influence on establishment of functioning gut microbiota, the effect of the insect meal diets on the microbial ecology shoul…
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Riverine spawning, long distance larval drift, and floodplain recruitment of a pelagophilic fish: A case study of golden perch (<span><i>Macquaria ambigua</i></span>) in the arid Darling River, Australia Open
Pelagic spawning riverine fish (pelagophils) spawn in free‐flowing river habitats with downstream drift of eggs and larvae but the spatial scale is often unknown, and this constitutes a major ecological knowledge gap. In the arid Darling R…
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Modulation of Intestinal Microbiota in Solea senegalensis Fed Low Dietary Level of Ulva ohnoi Open
Gastrointestinal (GI) microbiota has a relevant role in animal nutrition, modulation of the immune system and protection against pathogen invasion. Interest in algae as source of nutrients and functional ingredients for aquafeeds is increa…
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Sensitivity of a shark nursery habitat to a changing climate Open
Nursery area habitats such as estuaries are vital for the success of many fish populations. Climate change is altering conditions in these areas, which can thus impact the availability of suitable nursery habitat. The sandbar shark Carchar…
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Uniting paradigms of connectivity in marine ecology Open
The connectivity of marine organisms among habitat patches has been dominated by two independent paradigms with distinct conservation strategies. One paradigm is the dispersal of larvae on ocean currents, which suggests networks of marine …
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Ecomorphology and resource use by dominant species of tropical estuarine juvenile fishes Open
Eleven ecomorphological attributes and diet of seventeen juvenile fish species were examined to test the hypothesis that morphological patterns determine resource uses in estuarine habitats. Species were separated according to the apparatu…
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Protecting juveniles, spawners or both: A practical statistical modelling approach for the design of marine protected areas Open
Fish populations undertaking ontogenetic or spawning migrations pose challenges to marine protected area (MPA) planning because of the large extent of their distribution areas. There is a need to identify the juvenile and spawner hotspots …