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Showing 1 to 20 of 27 for “"Esox lucius"”.
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Evaluating Alberta’s Fall Index Netting Protocol for Assessing Northern Pike (Esox lucius) Populations
… Netting (FIN) for monitoring Northern Pike (Esox lucius) populations, we tested five hypotheses relating FIN catches to independently measured abundance and sizes of Northern Pike, including testing the economic effectiveness of FIN monitoring. These tests used fisheries survey data on 133 …
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Ecological and recreational interactions of the native pike Esox lucius and the invasive pikeperch Sander lucioperca in England.
… the ecological interactions of the native pike Esox lucius and the invasive pikeperch in England were quantified, including their life history traits, size- structured feeding relationships, and their trophic and spatial interactions. For anglers who exploit these species, their recreational …
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Diet, growth and bioenergetics of Northern Pike (Esox lucius Linnaeus, 1758) in Box Canyon Reservoir, Pend Oreille River, Washington
<p>"The objectives of this study were to describe the growth of northern pike, describe the food habits of northern pike and using bioenergetics modeling assess the mass and total numbers of each species of forage fish the northern pike population consumed in Box Canyon Reservoir,Pend Orielle …
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The influence of food web structure on the diet, mercury dynamics and bioenergetics of northern pike in reservoirs of the upper South Saskatchewan River Basin
… and fisheries target species northern pike (Esox lucius). Where lake whitefish (Coregonus clupeaformis) were abundant in the prey community, pike were found to be piscivorous, consuming predominantly lake whitefish and other large-bodied fish species. Benthivorous feeding behavior was …
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A comparison of growth rates of coarse fish in gravel-pit lakes in south-east England and of population structure in selected lakes
… L.), perch (Perca fluviatilis L.) and pike (Esox lucius L.). There was no apparent correlation between fish growth rate and age, size or any other measured parameter of a lake. Two lakes dominated by pike and perch and four lakes dominated by roach, bream and tench were studied. Two annual …
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Growth, survival, and vulnerability to predation of stocked walleye (Stizostedion vitreum) fingerlings
… bass (Micropterus salmoides) and northern pike (Esox Lucius consumed fathead minnows (Pimephales promelas) 2.6 times more frequently than walleye (Stizostedion vitreum) and 5.7 times more than lepomids. Prey were more vulnerable in circular than rectangular tanks. In field studies, walleye …
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The Consequences of Non-Native Species Invasions on the Contemporary and Historic Trophic Ecology of Native Sport Fish in a Lake Michigan Embayment
… overlap between walleye, northern pike (<em>Esox lucius</em>), smallmouth bass (<em>Micropterus dolomieu</em>) and yellow perch (<em>Perca flavescens</em>) indicating shared use of common prey items including round goby (<em>Neogobius melanostomus</em>)]. As length increased, northern pike …
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Behavioural causes and consequences of sexual size dimorphism in an apex predator species.
… and result in size dimorphism by using pike (Esox lucius) as a model species. The results show that early life growth is an important driver of sexual size dimorphism in this species. A subsequent focus on the juvenile life stages revealed that individual differences in movement and dispersal …
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Zur Rekonstruktion historischer Biodiversität aus archivalischen Quellen: Das Beispiel des Oderbruchs (Brandenburg) im 18. Jahrhundert
… auf der überragenden Stellung des Hechtes (Esox lucius) in den Überlieferungen des unmeliorierten Oderbruchs (darunter u. a. Verkaufsstatistiken der Hechtreißer , einer auf die Vermarktung von Hechten spezialisierten Fischerinnung). Da der Hecht in Süßgewässern sowohl Top-Predator als auch …
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The Influence of the Clean Water Act and Tributaries on the Fish Community of the Big Sioux River, South Dakota
… of other species including northern pike Esox lucius, shorthead red horses Moxostoma macrolepidotum, and yellow perch Perea flayescens were also collected in tributaries. The results suggest that improvements in municipal waste treatment since the passage of the Clean Water Act in 1972 …
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Annual Food Habits of Northern Pike in an Eastern South Dakota Natural Lake
Food habits of northern pike Esox lucius were documented in Lake Thompson, a shallow, windswept, eutrophic lake in eastern South Dakota. The main food items, assessed with the Relative Importance Index, eaten by northern pike in Lake Thompson were common carp Cyprinus carpio, black crappies …
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Indexing Walleye Recruitment in Eastern South Dakota Natural Lakes
… selection results supported adult Northern Pike Esox lucius relative abundance and reduced models that included winter severity. Although relationships were weak, lower Walleye recruitment was generally associated with higher Northern Pike relative abundance and increased winter severity.</p>
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Ecology of Fish Communities in Nebraska Sandhill Lakes
… high among all lakes. However, northern pike Esox Lucius exhibited relatively low condition when compared to other fish species. Quality bluegill and yellow perch populations were influenced by their environment; however, predation by largemouth bass Micropterus salmoides and northern pike …
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Biotic Integrity and Northern Pike Ecology in Eastern South Dakota
… of the important sport species northern pike Esox lucius in the wadeable perennial streams of the NGP. For IBI development, fish were sampled from 54 sites (sites span a gradient of human disturbance). Candidate metrics were sorted into metric classes and screened using a series of statistical …
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Predator-prey Interactions of Fishes in Two Nebraska Sandhill Lakes
… bass Micropterus salmoides and northern pike Esox Lucius food habit studies have been undertaken extensively throughout the United States and Europe, none have been completed for fish communities in the Nebraska Sandhill lakes. Additionally, little information exists on the seasonal food …
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Mercury concentration and aquatic food web alterations associated with zebra mussel invasion in Minnesota lakes
… for safe eating of average sized northern pike (Esox Lucius) and walleye (Sander vitreus) ranged from 60%-70%, with zebra mussel lakes having an increased chance. Specifically, mercury concentrations analyzed using Before-After Control-Impact (BACI) study design increased by 8.2% in northern pike …
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Growth, Distribution, and Movement of Northern Pike in a South Dakota Natural Lake, With Sampling Considerations
A total of 702 northern pike Esox lucius was collected monthly on 17 occasions from July 1991 to June 1993 from Lake Thompson, South Dakota to assess seasonal variations in growth and sampling data. Mean length of male northern pike from the 1990 year class increased during the spring and autumn of …
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Space Use by Piscivorous Birds, Fish, and Humans on a Multi-Use Lake in Southern Saskatchewan
… species (walleye Sander vitreus; northern pike Esox Lucius; and burbot Lota lota) use lakes and identify key areas for protection and management efforts. Conflicts between humans and fish-eating birds over fisheries resources have also emerged and may be exacerbated by the limited availability …
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The Effect of Grass Carp Introduction on Aquatic Vegetation and Existing Fish Populations in Two Small Prairie Lakes
… respectively. The biomass of northern pike (Esox lucius) was also high at 13.8 kg/hectare. A Proportional Stock Density (PSD) of 11 and Relative Weight (WK) of 117 indicated a relatively healthy bluegill population in East Lake Eureka. However, the PSD value for black bullheads was lower (8) …
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Fischökologische Funktionalität von Fließgewässerrenaturierungen im oberfränkischen Mainsystem
… Für die phythophilen Arten Hecht (Esox lucius), Schleie (Tinca tinca) und Rotfeder (Scardinius erythrophthalmus) waren die Laichbedingungen im Seitengewässer günstig. Die Anbindung war ein hochwertiges Jungfischhabitat. Das reiche Zooplanktonangebot in der Anbindung führte zu …
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