Log in

Relevant bibliographies by topics / Brown trout / Journal articles

To see the other types of publications on this topic, follow the link: Brown trout.

Journal articles on the topic 'Brown trout'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 June 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Brown trout.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lyach, Roman. "The Ten Commandments of Successful Fishery Management of Wild Brown Trout Salmo trutta Populations in Salmonid Streams in the Bohemian Region (Czech Republic)." Applied Sciences 12, no. 9 (2022): 4602. http://dx.doi.org/10.3390/app12094602.

Full text

Abstract:

The brown trout Salmo trutta is a fish species that is vulnerable to climate change and anthropogenic activities in its native range. The case studies of successful restoration of brown trout populations are rare. In this study, fishery managers who successfully restored brown trout populations are sharing their know-how and advice about their conservation strategy. Overall, twenty fishery managers were interviewed to give advice about their successful conservation practices of local brown trout populations. Using a qualitative analysis method, ten main recommendations were extracted: (1) asse

APA, Harvard, Vancouver, ISO, and other styles

2

Zimmerman, Julie KH, and Bruce Vondracek. "Interactions of slimy sculpin (Cottus cognatus) with native and nonnative trout: consequences for growth." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 7 (2006): 1526–35. http://dx.doi.org/10.1139/f06-054.

Full text

Abstract:

We examined growth of native slimy sculpin (Cottus cognatus), native brook trout (Salvelinus fontinalis), and nonnative brown trout (Salmo trutta) to investigate potential interactions of a native nongame fish with native and nonnative trout. Enclosures (1 m2) were stocked with five treatments (juvenile brown trout with sculpin, juvenile brook trout with sculpin, and single species controls) at three densities. Treatments (with replication) were placed in riffles in Valley Creek, Minnesota, and growth rates were measured for six experiments. We examined the difference in growth of each species

APA, Harvard, Vancouver, ISO, and other styles

3

Spens, Johan, Anders Alanärä, and Lars-Ove Eriksson. "Nonnative brook trout (Salvelinus fontinalis) and the demise of native brown trout (Salmo trutta) in northern boreal lakes: stealthy, long-term patterns?" Canadian Journal of Fisheries and Aquatic Sciences 64, no. 4 (2007): 654–64. http://dx.doi.org/10.1139/f07-040.

Full text

Abstract:

This study of 193 boreal lakes of northern Sweden suggests a long-term detrimental impact of introduced brook trout (Salvelinus fontinalis) on brown trout (Salmo trutta) populations. Thirteen of 65 (20%) brown trout populations in lakes exposed to brook trout went extinct, whereas the extinction rate in unexposed lakes was significantly lower (2%). We verified other studies that indicate that altitude strongly affects the distribution of the two species; brown trout populations in our higher altitude lakes were more sensitive to impact from brook trout. In 28 lakes above 285 m, 12 trout popula

APA, Harvard, Vancouver, ISO, and other styles

4

Öhlund, Gunnar, Fredrik Nordwall, Erik Degerman, and Torleif Eriksson. "Life history and large-scale habitat use of brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) — implications for species replacement patterns." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 4 (2008): 633–44. http://dx.doi.org/10.1139/f08-003.

Full text

Abstract:

Simple models of temperature-mediated interference competition have generally failed to explain salmonid species replacement patterns along altitudinal gradients, a fact that emphasizes the need to link individual features and their relation to habitat characteristics to population-level dynamics. We compared life history parameters in stream-resident populations of brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) in eight boreal streams. By use of electrofishing data from 1000 sites, we analyzed and related differences in life history traits to habitat- and interaction-relat

APA, Harvard, Vancouver, ISO, and other styles

5

Chivers, Douglas P., Anthony Mathiron, Janelle R. Sloychuk, and Maud C. O. Ferrari. "Responses of tadpoles to hybrid predator odours: strong maternal signatures and the potential risk/response mismatch." Proceedings of the Royal Society B: Biological Sciences 282, no. 1809 (2015): 20150365. http://dx.doi.org/10.1098/rspb.2015.0365.

Full text

Abstract:

Previous studies have established that when a prey animal knows the identity of a particular predator, it can use this knowledge to make an ‘educated guess' about similar novel predators. Such generalization of predator recognition may be particularly beneficial when prey are exposed to introduced and invasive species of predators or hybrids. Here, we examined generalization of predator recognition for woodfrog tadpoles exposed to novel trout predators. Tadpoles conditioned to recognize tiger trout, a hybrid derived from brown trout and brook trout, showed generalization of recognition of seve

APA, Harvard, Vancouver, ISO, and other styles

6

Rahel, Frank J., and Nathan P. Nibbelink. "Spatial patterns in relations among brown trout (Salmo trutta) distribution, summer air temperature, and stream size in Rocky Mountain streams." Canadian Journal of Fisheries and Aquatic Sciences 56, S1 (1999): 43–51. http://dx.doi.org/10.1139/f99-210.

Full text

Abstract:

Stream size interacted with mean July air temperature to influence the distribution of brown trout (Salmo trutta) in southeastern Wyoming streams. The geographic range of brown trout was positively associated with mean July air temperatures of 19-22°C. Within this thermal zone, brown trout were more likely to occur in large streams (>4 m wetted width) than in small streams. We used a geographic information system to examine spatial patterns in the distribution of anomalous sites (i.e., sites predicted to have brown trout but which lacked this species). Sites that lacked brown trout but cont

APA, Harvard, Vancouver, ISO, and other styles

7

Borgstrøm, Reidar, Sigurd Rognerud, Sondre Meland, and Bjørn Olav Rosseland. "Introduced European minnow Phoxinus phoxinus in alpine lakes may increase total mercury concentration in brown trout Salmo trutta." Fauna norvegica 41 (November 26, 2021): 41–49. http://dx.doi.org/10.5324/fn.v41i0.3967.

Full text

Abstract:

In Norway, the cyprinid European minnow Phoxinus phoxinus has been spread far outside its previous natural distribution area, with lots of establishments in mountain lakes where brown trout Salmo trutta originally was the only fish species. We have analysed δ15N and total mercury (THg) concentration in brown trout from eight lakes, situated between 1031 and 1244 m a.s.l. on the Hardangervidda mountain plateau, southern Norway. One of the lakes is inhabited by brown trout and European minnow, while in the other seven lakes, brown trout is the only fish species. δ15N of brown trout were signific

APA, Harvard, Vancouver, ISO, and other styles

8

McHugh, Peter, and Phaedra Budy. "An experimental evaluation of competitive and thermal effects on brown trout (Salmo trutta) and Bonneville cutthroat trout (Oncorhynchus clarkii utah) performance along an altitudinal gradient." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 12 (2005): 2784–95. http://dx.doi.org/10.1139/f05-184.

Full text

Abstract:

Temperature-mediated competition (i.e., dominance shifts between species depending on temperature) may explain the segregation of salmonid species along altitudinal stream gradients. We evaluated this hypothesis for exotic brown trout (Salmo trutta) and native Bonneville cutthroat trout (Oncorhynchus clarkii utah) by rearing them in experimental sympatry and allopatry using enclosures constructed at six sites spaced along a 45-km segment of a mountain stream. For both species, we compared condition and growth between allopatric and sympatric treatment groups. We found that brown trout negative

APA, Harvard, Vancouver, ISO, and other styles

9

Barylo, Ye O., Yu V. Loboiko, and B. S. Barylo. "Fishery-exteriors characteristics of the brooders of brown trout, rainbow trout and brook trout." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 90 (2019): 88–92. http://dx.doi.org/10.32718/nvlvet-a9015.

Full text

Abstract:

This study aims to determine the reproductive indices of three types of salmon fish: brown trout (Salmo trutta morfa fario Linnaeus (1758), rainbow trout (Oncorhynchus mykiss Walbaum, 1792) and brook trout (Salvelinus fontinalis Mitchill, 1814) in aquaculture. For this purpose, 10 females and 10 males of each species were selected on an analogous basis and the main fishery-exteriors and reproductive characteristics were identified. The researching of relative fertility permit to establish that this indicator in brook trout females was 18.36% higher compared to rainbow trout, however, by 7.5% l

APA, Harvard, Vancouver, ISO, and other styles

10

Al-Chokhachy, Robert, David Schmetterling, Chris Clancy, et al. "Are brown trout replacing or displacing bull trout populations in a changing climate?" Canadian Journal of Fisheries and Aquatic Sciences 73, no. 9 (2016): 1395–404. http://dx.doi.org/10.1139/cjfas-2015-0293.

Full text

Abstract:

Understanding how climate change may facilitate species turnover is an important step in identifying potential conservation strategies. We used data from 33 sites in western Montana to quantify climate associations with native bull trout (Salvelinus confluentus) and non-native brown trout (Salmo trutta) abundance and population growth rates (λ). We estimated λ using exponential growth state-space models and delineated study sites based on bull trout use for either spawning and rearing (SR) or foraging, migrating, and overwintering (FMO) habitat. Bull trout abundance was negatively associated w

APA, Harvard, Vancouver, ISO, and other styles

11

Hayes, John W. "Competition for Spawning Space Between Brown (Salmo trutta) and Rainbow Trout (S. gairdneri) in a Lake Inlet Tributary, New Zealand." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 1 (1987): 40–47. http://dx.doi.org/10.1139/f87-005.

Full text

Abstract:

Effect of interference competition for spawning space on spawning success of brown (Salmo trutta) and rainbow trout (S. gairdneri) was studied in the main spawning tributary of Lake Alexandrina, New Zealand. Competition was mediated through redd superimposition and severely limited the spawning success of both species. Overall spawning success, from egg deposition to fry emergence, was 2.1% for rainbow trout and 0.2% for brown trout and was dependent on time of spawning. Brown trout spawned from April to June and rainbow trout spawned from April to October. Brown trout and early spawning rainb

APA, Harvard, Vancouver, ISO, and other styles

12

Bazaz, Asim Iqbal, Tasaduq H. Shah, Farooz A. Bhat, et al. "Assessment of Spawning Fecundity and Its Relationship with Body Parameters of Rainbow Trout (Oncorhynchus mykiss) and Brown Trout (Salmo trutta fario)." International Journal of Bio-resource and Stress Management 13, no. 10 (2022): 1115–23. http://dx.doi.org/10.23910/1.2022.3066a.

Full text

Abstract:

The present investigations were carried out at Trout Culture Farm Laribal, Srinagar (J&K Govt.), India during December, 2020. Relationship between length-weight, spawning fecundity and relative fecundity was observed in rainbow trout (O. mykiss) and brown trout (S. trutta fario). The mean length of male rainbow trout was (38.77±1.38 cm) and mean length of (38.05±1.32 cm) was observed in female rainbow trout. While as, the mean length of male brown trout was (38.86±1.41 cm) and for female brown trout mean length of (37.98±1.30 cm) was observed. The mean weight of male and female rainbow tro

APA, Harvard, Vancouver, ISO, and other styles

13

Larranaga, Nicolas, Magnus L. Wallerius, Haoyu Guo, Julien Cucherousset, and Jörgen I. Johnsson. "Invasive brook trout disrupt the diel activity and aggregation patterns of native brown trout." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 7 (2019): 1052–59. http://dx.doi.org/10.1139/cjfas-2018-0110.

Full text

Abstract:

In European streams, native brown trout (Salmo trutta) feed primarily on aquatic prey but consume a higher proportion of terrestrial prey in sympatry with non-native brook trout (Salvelinus fontinalis). This is a rare example of diet convergence that may be associated with changes in diel activity or aggregation pattern by brown trout in sympatry. We recorded the activity and positions of brown trout from two origins and in two competition modes (allopatry versus sympatry, four combinations) placed in replicated stream enclosures for 29 days to test these hypotheses. Brown trout originating fr

APA, Harvard, Vancouver, ISO, and other styles

14

SNOJ, Aleš. "Genetic variation between phenotypically different native and introduced brown trout in Slovenia." Acta agriculturae Slovenica 70, no. 1 (1997): 111–16. http://dx.doi.org/10.14720/aas.1997.70.1.16148.

Full text

Abstract:

The aim of the study was the identification of genetic polymorphism enabling a discrimination between Slovenian native (Danubian) and introduced (Atlantic) brown trout (Salmo trutta) populations. Within the mitochondrial DNA D-loop region three polymorphic sites with four different genotypes were found, two of them being characteristic for the Danubian brown trout, and the other two for the Atlantic and the Ohrid trout, respectively. Analyzing microsatellite DNA one informative locus was found, revealing four alleles which enabled the discrimination among the Danubian, the Atlantic and the Ohr

APA, Harvard, Vancouver, ISO, and other styles

15

Marr, J. C. A., H. L. Bergman, J. Lipton, and C. Hogstrand. "Differences in relative sensitivity of naive and metals-acclimated brown and rainbow trout exposed to metals representative of the Clark Fork River, Montana." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 9 (1995): 2016–30. http://dx.doi.org/10.1139/f95-793.

Full text

Abstract:

Naive and metals-acclimated juvenile brown (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) were exposed to a metals mixture containing zinc, copper, lead, and cadmium, to compare relative sensitivities to metals concentrations typical of the Clark Fork River, Montana. Differences in the survival responses (tolerance versus resistance) measured for naive fish indicated that the rainbow trout are more tolerant (higher 96-h LC50) of the metals mixture, yet the naive rainbow and brown trout showed similarities in resistance (mean time to death). Differences for metals-acclimated fish indica

APA, Harvard, Vancouver, ISO, and other styles

16

Hitt, Nathaniel P., Erin L. Snook, and Danielle L. Massie. "Brook trout use of thermal refugia and foraging habitat influenced by brown trout." Canadian Journal of Fisheries and Aquatic Sciences 74, no. 3 (2017): 406–18. http://dx.doi.org/10.1139/cjfas-2016-0255.

Full text

Abstract:

The distribution of native brook trout (Salvelinus fontinalis) in eastern North America is often limited by temperature and introduced brown trout (Salmo trutta), the relative importance of which is poorly understood but critical for conservation and restoration planning. We evaluated effects of brown trout on brook trout behavior and habitat use in experimental streams across increasing temperatures (14–23 °C) with simulated groundwater upwelling zones providing thermal refugia (6–9 °C below ambient temperatures). Allopatric and sympatric trout populations increased their use of upwelling zon

APA, Harvard, Vancouver, ISO, and other styles

17

Erdem, Ömer Alper, Başak Alkan, and Mehmet Tolga Dinçer. "Comparison on nutritional properties of wild and cultured brown trout and Atlantic salmon." Ege Journal of Fisheries and Aquatic Sciences 37, no. 1 (2020): 37–41. http://dx.doi.org/10.12714/egejfas.37.1.05.

Full text

Abstract:

Brown trout is a fish species that both is caught and is cultured. This study has presented a comparison on proximate composition, fatty acids profile and lipid quality of wild- and cultured brown trout, and Atlantic salmon. Crude protein and crude oil of Atlantic salmon were found highest than wild and cultured brown trout and significantly differences (P<0.05). Although there is no significantly difference (P<0.05) between cultured brown trout and Atlantic salmon on eicosapentaenoic acid (EPA), there are significantly differences (P<0.05) between three fish samples on linoleic acid,

APA, Harvard, Vancouver, ISO, and other styles

18

Rawat, M. S., Babita Bantwan, Dhyal Singh, and O. P. Gusain. "Status of brown trout (Salmo trutta fario L.) in Garhwal Himalaya with a note on it morphometric characteristics." Environment Conservation Journal 12, no. 3 (2011): 47–52. http://dx.doi.org/10.36953/ecj.2011.120309.

Full text

Abstract:

The history of introduction of brown trout in Garhwal Himalaya is 100 years. However, the scientific information on brown trout is grossly lacking. The present study is a part of investigation on various aspects of brown trout inhabiting the River Asiganga in Uttarkashi district of Uttarakhand. The status of brown trout was ascertained in River Asiganga and other reports from elsewhere in the region. The morphometric study was based on 253 fish specimens collected from River Asiganga. In addition to the 12 body measurements of the fish, red/orange and brown spots on body were also studied.

APA, Harvard, Vancouver, ISO, and other styles

19

Young, Michael K. "Mobility of brown trout in south-central Wyoming streams." Canadian Journal of Zoology 72, no. 12 (1994): 2078–83. http://dx.doi.org/10.1139/z94-278.

Full text

Abstract:

Stream-resident brown trout (Salmo trutta) have often been considered to have small home ranges. To test this hypothesis, positions of adult brown trout in two streams were monitored from mid-June to early December 1991 and from late September 1992 to early June 1993 by using radiotelemetry. Thirty-seven of the 54 brown trout that were relocated at least once had home ranges greater than 50 m, trout larger than 340 mm moved more than did smaller brown trout, and movement of all fish tended to be greater in autumn. Different movement patterns of large and small fish imply the existence of two l

APA, Harvard, Vancouver, ISO, and other styles

20

Arndt, Fux, Blutke, et al. "Proliferative Kidney Disease and Proliferative Darkening Syndrome are Linked with Brown Trout (Salmo trutta fario) Mortalities in the Pre-Alpine Isar River." Pathogens 8, no. 4 (2019): 177. http://dx.doi.org/10.3390/pathogens8040177.

Full text

Abstract:

For many years, brown trout (Salmo trutta fario) mortalities within the pre-alpine Isar River in Germany were reported by the Bavarian Fisheries Association (Landesfischereiverband Bayern e.V.) and local recreational anglers during August and September. Moribund fish seemed to be affected by proliferative darkening syndrome (PDS). In addition, proliferative kidney disease (PKD) caused by Tetracapsuloides bryosalmonae was discussed. To investigate this phenomenon, the present field study monitored brown trout mortalities by daily river inspection in 2017 and 2018. Moribund brown trout (n = 31)

APA, Harvard, Vancouver, ISO, and other styles

21

Näslund, Ingemar, Erik Degerman, and Fredrik Nordwall. "Brown trout (Salmo trutta) habitat use and life history in Swedish streams: possible effects of biotic interactions." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 4 (1998): 1034–42. http://dx.doi.org/10.1139/f97-313.

Full text

Abstract:

To test if habitat use and life history of stream-dwelling brown trout (Salmo trutta) differed between allopatric and sympatric situations, we compared three streams with differing fish communities and used data from a large national database containing electrofishing results from Swedish streams. In the three-creek study, allopatric brown trout used all habitats and shifted from nursery areas in riffles to pool habitats, where adult growth and survival were higher. Mainly females shifted habitat and this was undertaken after age 1. Sympatric brown trout under intense pressure from other fish

APA, Harvard, Vancouver, ISO, and other styles

22

Qvenild, Tore, Trygve Hesthagen, and Jon Museth. "A long-term study of the impact of the invasive species Eurasian minnow Phoxinus phoxinus on brown trout Salmo trutta production in a high mountain lake, Southern Norway." Fauna norvegica 43 (May 24, 2024): 1–11. http://dx.doi.org/10.5324/fn.v43i0.5826.

Full text

Abstract:

The shallow Lake Skjerja was originally one of the most outstanding brown trout lakes on the Hardangervidda mountain plateau. During the period 1973–1985, the annual yield was on average 3.35 kg ha-1. In the mid-1980s, Eurasian minnow established a dense population in the lake. Since 1994, 5304 kg of Eurasian minnow have been removed with baited traps, which correspond to an annual mean catch of 177 kg year-1 or 1.12 kg ha-1. The competition for food, in addition to longer food chains, has had a strong negative impact on the brown trout production, with an annual yield reduced to 1.07 kg ha-1,

APA, Harvard, Vancouver, ISO, and other styles

23

Taniguchi, Yoshinori, Frank J. Rahel, Douglas C. Novinger, and Kenneth G. Gerow. "Temperature mediation of competitive interactions among three fish species that replace each other along longitudinal stream gradients." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 8 (1998): 1894–901. http://dx.doi.org/10.1139/f98-072.

Full text

Abstract:

Competitive ability changed across a range of 3-26°C among three fish species that show longitudinal replacement in Rocky Mountain streams: brook trout (Salvelinus fontinalis) at high elevations, brown trout (Salmo trutta) at middle elevations, and creek chub (Semotilus atromaculatus) at low elevations. Competitive ability was measured by food consumption and aggression in a stream tank. At 20°C, the trout species were competitively equal, and both were competitively superior to creek chub. Creek chub began to have competitive success against brook trout at 22°C and brown trout at 24°C, temper

APA, Harvard, Vancouver, ISO, and other styles

24

Kocik, John F., and William W. Taylor. "Effect of juvenile steelhead (Oncorhynchus mykiss) on age-O and age-1 brown t rout (Salmo trutta) survival and growth in a sympatric nursery stream." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 1 (1995): 105–14. http://dx.doi.org/10.1139/f95-444.

Full text

Abstract:

We determined that juvenile steelhead (Oncorynchus mykiss) had little effect on the survival and growth of age-0 and age-1 brown trout (Salmo trutta) in a Lake Huron tributary. Starting in 1989, we surveyed wild brown trout juveniles in two stream sections. Unfed steelhead fry were introduced into one section in May of 1990 and 1991, establishing moderate populations. Assessments continued through 1992. Steelhead had no measurable effect on juvenile brown trout abundance or survival. Steelhead did negatively influence age-0 brown trout growth, but this effect was minor compared with intraspeci

APA, Harvard, Vancouver, ISO, and other styles

25

Marr, J. C. A., H. L. Bergman, M. Parker, et al. "Relative sensitivity of brown and rainbow trout to pulsed exposures of an acutely lethal mixture of metals typical of the Clark Fork River, Montana." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 9 (1995): 2005–15. http://dx.doi.org/10.1139/f95-792.

Full text

Abstract:

Brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss) fry and juveniles were episodically or continuously exposed to a metals mixture (Zn, Cu, Pb, Cd): the concentrations and ratios of the metals, and variations in water quality (pH, hardness), were selected to represent conditions measured during episodic storm events in the Clark Fork River, Montana. Brown trout fry were more sensitive (lower LC50) than rainbow trout fry to the metals in 8-h exposures with constant hardness and pH, but less sensitive to elevated metal concentrations in conjunction with depressed hardness and pH.

APA, Harvard, Vancouver, ISO, and other styles

26

Mruk, A., G. Kucheruk, L. Galoyan, and N. Mykhailenko. "Study and development of methods for obtaining intergeneric hybrids of salmonids (Salmonidae (Jarocki or Schinz, 1822)) for achieving the effect of heterosis and increasing their productivity." Ribogospodarsʹka nauka Ukraïni., no. 4(58) (December 22, 2021): 40–55. http://dx.doi.org/10.15407/fsu2021.04.040.

Full text

Abstract:

Purpose. To study the possibility of obtaining highly productive intergeneric salmonid hybrids between rainbow trout and brook trout; brown trout and brook trout; rainbow trout and brown trout, as well as to develop methodological approaches and determine of optimal variants of hybrid crosses. Findings. In order to obtain intergeneric hybrids, we used six variants of hybrid crosses with brood fish of three salmonids belonging to three families (Salmo, Oncorhynhus, Salvelinus). The study used age-4 female rainbow trout with average body weight of 3296.8 g, Fork length was 62.6 cm, and the avera

APA, Harvard, Vancouver, ISO, and other styles

27

Bravo, Sandra, Ken Whelan, and María Teresa Silva. "Assessment of trout populations inhabiting the Palena River, southern Chile." Latin American Journal of Aquatic Research 49, no. 1 (2021): 29–39. http://dx.doi.org/10.3856/vol49-issue1-fulltext-2577.

Full text

Abstract:

A survey of trout species was carried out to assess the trout stocks' quality inhabiting the Palena River Basin, one of the most important rivers for recreational angling in Chilean Patagonia. Six sampling campaigns were carried out over 16 selected stretches of the river between February 2012 and June 2013. A total of 912 trout were collected, 57% rainbow trout (Oncorhynchus mykiss), 33.3% brown trout (Salmo trutta), and 9.6% brook trout (Salvelinus fontinalis). Also, one tiger trout (Salmo trutta × Salvelinus fontinalis) (a hybrid between brown and brook trout) was recorded. Results showed t

APA, Harvard, Vancouver, ISO, and other styles

28

Cucherousset, Julien, Libor Závorka, Sergine Ponsard, Régis Céréghino, and Frédéric Santoul. "Stable isotope niche convergence in coexisting native and non-native salmonids across age classes." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 8 (2020): 1359–65. http://dx.doi.org/10.1139/cjfas-2019-0186.

Full text

Abstract:

Niche divergence resulting from coevolution is commonly believed to favour coexistence among competing species; however, recent investigations have demonstrated that an unexpected niche convergence can occur when native and non-native species coexist. Yet, our understanding of the ontogenetic characteristics of this niche convergence remains limited. In the present study, we quantified the stable isotope niche of native brown trout (Salmo trutta) in allopatry and sympatry with non-native brook trout (Salvelinus fontinalis) across four age classes. Our results demonstrated that brown trout disp

APA, Harvard, Vancouver, ISO, and other styles

29

Tkachenko, H., N. Kurhaluk, and J. Grudniewska. "ALTERATIONS OF LACTATE DEHYDROGENASE ACTIVITY IN THE SKELETAL MUSCLES AND CARDIAC TISSUE OF SALMONID AFTER DISINFECTING PROCEDURE WITH CHLORAMINE-T." Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine, no. 125 (2021): 37–46. http://dx.doi.org/10.32900/2312-8402-2021-125-37-46.

Full text

Abstract:

Chloramine-T is a widely used disinfectant for the treatment of gill diseases of fish in freshwater and can be toxic to fish. Therefore, the current study aimed to examine the safety of this disinfecting product (as it has been attracting researchers’ attention for applying in aquatic animals) for fish health using markers of aerobic and anaerobic capacity (i.e. lactate dehydrogenase activity) in the skeletal muscle and cardiac tissues of rainbow trout (Oncorhynchus mykiss Walbaum), grayling (Thymallus thymallus Linck), and brown trout (Salmo trutta m. fario). Twenty-two clinically healthy rai

APA, Harvard, Vancouver, ISO, and other styles

30

Dürrani, Ömerhan. "Do the length-weight relationships and condition factors of farmed rainbow trout, brook, and brown trout differ from their wild counterparts?" Aquatic Research 6, no. 4 (2023): 253–59. http://dx.doi.org/10.3153/ar23024.

Full text

Abstract:

This study examines the length-weight relationships (LWR) and condition factors (CF) of three farmed fish species: rainbow trout (Oncorhynchus mykiss), brook trout (Salvelinus fontinalis), and brown trout (Salmo trutta). It then compares these findings with existing literature data for their wild counterparts to gain insights into the influence of aquaculture on their growth patterns. Using a simple power function, W=α〖L_T〗^β where W represents the fish's weight, and LT represents the fish's total length, the LWR is determined. The estimated β values indicate positive allometric growth for rai

APA, Harvard, Vancouver, ISO, and other styles

31

Chalupa, Petr, Eva Poštulková, Lenka Hadašová, and Petr Spurný. "The Influence of Fisheries Management on the Brown Trout Population in Moravice River." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 64, no. 4 (2016): 1115–23. http://dx.doi.org/10.11118/actaun201664041115.

Full text

Abstract:

In 2013, an ichthyological investigation with focus on the population of brown trout (Salmo trutta m. fario) in Moravice River above Slezská Harta dam reservoir in 6 localities of two salmonid fisheries was conducted (3 locations in fishery Moravice 7 and 3 locations in fishery Moravice 8). Ichthyological investigation in 2013 found abundance of brown trout in fishery Moravice 7 1,621 pcs/ha, in fishery Moravice 8 668 pcs/ha. These results were compared with the results of ichthyological investigations from 2004 (Spurný et al. 2006) and 2012 (unpublished data) that were conducted in the same l

APA, Harvard, Vancouver, ISO, and other styles

32

Mikheev, P. B., S. V. Prusov, J. Erkinaro, et al. "Tributary-Specific Contribution to a Lacustrine Mixed-Stock Fishery of Brown Trout Salmo trutta (Salmonidae) in a Diverse Sub-Arctic Watershed." Вопросы ихтиологии 63, no. 2 (2023): 209. http://dx.doi.org/10.31857/s0042875223020157.

Full text

Abstract:

Mixed-stock fisheries which simultaneously cause mortality amongst several populations of a species of fish may occur where separate stocks partially or completely overlap in the geographic area of harvest. This study aims to analyze the population-of-origin of adult and subadult adfluvial lacustrine brown trout Salmo trutta, exploited in a mixed-stock fishery in Upper Tuloma Reservoir in Eastern Fennoscandia, using otolith microchemistry. To evaluate the origin of migratory brown trout captured in these mixed-stock harvest fisheries, we undertook otolith sampling of brown trout juveniles in f

APA, Harvard, Vancouver, ISO, and other styles

33

Essington, Timothy E., Peter W. Sorensen, and Dean G. Paron. "High rate of redd superimposition by brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) in a Minnesota stream cannot be explained by habitat availability alone." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 10 (1998): 2310–16. http://dx.doi.org/10.1139/f98-109.

Full text

Abstract:

This study was conducted to test the hypothesis that redd superimposition by salmonine fishes is a consequence of limited habitat availability. We monitored redd site selection by brook trout (Salvelinus fontinalis) and brown trout (Salmo trutta) for two spawning seasons in Valley Creek, Minnesota. Redd superimposition rates were high; over one half of the brook trout and one third of the brown trout superimposed redds. We tested the role of habitat availability in this process by characterizing microhabitat at sites with and without redds in four small sections of this stream and then determi

APA, Harvard, Vancouver, ISO, and other styles

34

Piria, Marina, Ivan Špelić, Luana Velagić, et al. "Feeding Habits and Diet Overlap between Brown Trout Lineages from the Danube Basin of Croatia." Fishes 7, no. 4 (2022): 179. http://dx.doi.org/10.3390/fishes7040179.

Full text

Abstract:

Brown trout of non-native lineages have been stocked into Croatian streams and rivers primarily to meet angler demand. The diet of brown trout in the Black Sea Basin of Croatia is poorly understood, and there are no studies examining feeding competition between the Atlantic (AT) and Danube (DA) lineages of brown trout and their hybrids (HY). The aim of this study was to examine the natural diet of brown trout of both lineages and their hybrids and to compare feeding overlap. Canonical correspondence analysis was used to investigate the relationships between feeding habits of fish from differen

APA, Harvard, Vancouver, ISO, and other styles

35

Bylak, Aneta. "The effects of brown trout (Salmo trutta morpha fario) on habitat selection by larval Fire Salamanders (Salamandra salamandra): a predator-avoidance strategy." Canadian Journal of Zoology 96, no. 3 (2018): 213–19. http://dx.doi.org/10.1139/cjz-2017-0064.

Full text

Abstract:

Predatory fish can have a major impact on aquatic amphibian assemblages. Knowledge regarding the influence of habitat heterogeneity on predator–prey dynamics is extensive, but not much is published on how the habitat structure influences the co-occurrence of brown trout (Salmo trutta Linnaeus, 1758 morpha fario) and Fire Salamander (Salamandra salamandra (Linnaeus, 1758)). I examined the microhabitat distribution of larval salamanders relative to the presence of brown trout and stream morphology, hypothesizing that larval salamanders will increase their habitat use in the presence of trout to

APA, Harvard, Vancouver, ISO, and other styles

36

Sobenes, Catterina, Evelyn Habit, Konrad Górski, and Oscar Link. "Behavioral Responses of Galaxias platei to Salmo trutta: Experimental Evidence of Competition and Predation Risk." Water 17, no. 12 (2025): 1774. https://doi.org/10.3390/w17121774.

Full text

Abstract:

The adverse impacts of invasive salmonids on native galaxiids are well documented at the population level in the freshwater ecosystems of the Southern Hemisphere. However, the mechanism underlying these interactions and sub-lethal effects of salmonids on native galaxiids at the individual level remain poorly understood. In this study, a series of controlled experiments was conducted to assess sub-lethal interactions between invasive brown trout (Salmo trutta) and the native Galaxias platei at an individual level. The microhabitat preferences of G. platei were evaluated in response to potential

APA, Harvard, Vancouver, ISO, and other styles

37

Bozek, Michael A., and Wayne A. Hubert. "Segregation of resident trout in streams as predicted by three habitat dimensions." Canadian Journal of Zoology 70, no. 5 (1992): 886–90. http://dx.doi.org/10.1139/z92-126.

Full text

Abstract:

We assessed the relation of three measures of habitat to the distribution of four species of Salmonidae, cutthroat trout (Oncorhynchus clarki), brook trout (Salvelinus fontinalis), brown trout (Salmo trutta), and rainbow trout (Oncorhynchus mykiss), in streams of the central Rocky Mountains. We examined whether single measures of three habitat dimensions (climate, stream energy, and stream size) could account for current distribution patterns of four resident trout species in Wyoming. The three habitat dimensions were represented by three habitat variables: elevation, channel gradient, and wet

APA, Harvard, Vancouver, ISO, and other styles

38

BYRNE, C. J., C. V. HOLLAND, R. POOLE, and C. R. KENNEDY. "Comparison of the macroparasite communities of wild and stocked brown trout (Salmo trutta L.) in the west of Ireland." Parasitology 124, no. 4 (2002): 435–45. http://dx.doi.org/10.1017/s0031182001001330.

Full text

Abstract:

The aim of the present study was to compare the helminth infra and component communities of wild and stocked brown trout in Lough Feeagh, in the west of Ireland, and also to examine the establishment and development of helminth communities in stocked brown trout. Fish were sampled in May, August and November 1997 and 1998 and an additional sample of wild brown trout was examined in April 1997. In total 217 wild trout and 122 stocked trout were examined. The acanthocephalans Acanthocephalus clavula and Pomphorhynchus laevis were the first parasite species to infect stocked trout in May 1997. In

APA, Harvard, Vancouver, ISO, and other styles

39

Bannon, Eileen, and Neil H. Ringler. "Optimal prey size for stream resident brown trout (Salmo trutta): tests of predictive models." Canadian Journal of Zoology 64, no. 3 (1986): 704–13. http://dx.doi.org/10.1139/z86-104.

Full text

Abstract:

The time required to handle different-sized prey (crickets) was measured in an artificial stream for eight wild brown trout (Salmo trutta L.) in two size classes (mean total lengths, 186 and 214 mm). Handling times (HTs) scaled by mouth size were described by an exponential equation: HT = 1 + 0.84e2.35(ps/ms) (ps, prey size; ms, predator (mouth) size). Cost curves based on handling time/prey weight were used to predict optimal prey lengths of 22 mm for small trout and 24 mm for large trout. A second model based on J. W. J. Wankowski's empirical results predicted slightly smaller optima. Physic

APA, Harvard, Vancouver, ISO, and other styles

40

E., Barnes Michael, Nathan Huysman, Sarah White, Jeremy Kientz, and Voorhees Jill M. "Suture-less Implantation of Acoustic Transmitters in Two Salmonids." International Journal of Sciences Volume 9, no. 2020-03 (2020): 60–64. https://doi.org/10.5281/zenodo.3980069.

Full text

Abstract:

The surgical incision required to insert acoustic transmitters into fish peritoneal cavities is typically closed with sutures, staples, or cyanoacrylate adhesive. This study evaluated a novel tag insertion technique that did not use any method of wound closure. Twenty-six adult rainbow trout (Oncorhynchus mykiss) and 26 adult brown trout (Salmo trutta) received a small, 6 mm abdominal incision. A dummy acoustic transmitter tag was inserted into half (N = 13) of the fish in each species. Neither group received any wound closure; no sutures, staples, nor adhesives were used. Tag retention, wound

APA, Harvard, Vancouver, ISO, and other styles

41

Muzzall, Patrick M. "Parasites of trout from the Au Sable River, Michigan, with emphasis on the population biology of Cystidicoloides tenuissima." Canadian Journal of Zoology 64, no. 7 (1986): 1549–54. http://dx.doi.org/10.1139/z86-231.

Full text

Abstract:

Trout (212 brook trout, Salvelinus fontinalis, and 231 brown trout, Salmo trutta, Salmonidae) were collected from the Au Sable River, Michigan, and examined for parasites between April 1982 and July 1984. One hundred seventy-six brook trout and 153 brown trout were infected with at least one of the following parasites: Crepidostomum cooperi, Neascus sp., Eubothrium sp., Proteocephalus sp., Truttaedacnitis sp., Cystidicoloides tenuissima, Rhabdochona canadensis, Spinitectus gracilis, Epistylis sp., Trichodina sp., and Salmincola edwardsii. Cystidicoloides tenuissima, the most common and abundan

APA, Harvard, Vancouver, ISO, and other styles

42

Závorka, Libor, Nicolas Larranaga, Magnus Lovén Wallerius, et al. "Within-stream phenotypic divergence in head shape of brown trout associated with invasive brook trout." Biological Journal of the Linnean Society 129, no. 2 (2019): 347–55. http://dx.doi.org/10.1093/biolinnean/blz192.

Full text

Abstract:

Abstract Competition with a non-native species can lead to morphological changes in native organisms induced by phenotypic plasticity, and by selection against individuals that do not adjust their morphology to the novel selection pressure. The morphological changes in native organisms are often associated with rapid behavioural responses to competition with the invader. However, knowledge of the interaction between the behaviour and morphology of native organisms competing with a non-native species remains scarce. Here, we investigated the effect of competition with non-native brook trout Sal

APA, Harvard, Vancouver, ISO, and other styles

43

Jagiełło, Krzysztof, Tomasz Zalewski, Stefan Dobosz, Oliwia Michalik, and Konrad Ocalewicz. "High Rate of Deformed Larvae among Gynogenetic Brown Trout (Salmo trutta m. fario) Doubled Haploids." BioMed Research International 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/2975187.

Full text

Abstract:

Mitotic gynogenesis results in the production of fully homozygous individuals in a single generation. Since inbred fish were found to exhibit an increased frequency of body deformations that may affect their survival, the main focus of this research was to evaluate the ratio of individuals with spinal deformities among gynogenetic doubled haploids (DHs) brown trout as compared to nonmanipulated heterozygous individuals. Gynogenetic development was induced by the activation of brown trout eggs by UV-irradiated homologous and heterologous (rainbow trout) spermatozoa. The subsequent exposure of t

APA, Harvard, Vancouver, ISO, and other styles

44

Ivie, Jansen, Owen George, and Scott F. Collins. "Assessing the Predatory Effects of Invasive Brown Trout on Native Rio Grande Sucker and Rio Grande Chub in Mountain Streams of New Mexico, USA." Conservation 2, no. 3 (2022): 514–25. http://dx.doi.org/10.3390/conservation2030035.

Full text

Abstract:

Invasive predators pose a critical threat to native taxa. Body size plays an important role in mediating the interactions of predator and prey. For piscivorous fishes, increased predator body size can be accompanied by the selection of increasingly larger prey or may reflect a mix of small and large prey. Knowledge of such interactions helps determine how predation affects population vital rates. Here, we assessed the predatory effects of invasive Brown Trout (Salmo trutta) on populations of native Rio Grande Sucker (Catostomus plebeius) and Rio Grande Chub (Gila pandora) in streams of the Jem

APA, Harvard, Vancouver, ISO, and other styles

45

Hermann, Nathan T., Dominic T. Chaloner, Brandon S. Gerig, and Gary A. Lamberti. "Ecological consequences of Great Lakes salmon subsidies for stream-resident brook and brown trout." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 11 (2020): 1758–71. http://dx.doi.org/10.1139/cjfas-2020-0086.

Full text

Abstract:

Introduced Pacific salmon (Oncorhynchus spp.) deliver novel, pulsed resource subsidies to Great Lakes streams. We explored interactions between native brook trout (Salvelinus fontinalis) and non-native brown trout (Salmo trutta) in the context of this resource pulse. Diets surveyed before and during salmon spawning showed that, regardless of species, trout consumed 4.5-fold more biomass during than before salmon runs. Brook trout grew more quickly than brown trout under controlled feeding regimes due, in part, to their higher food conversion efficiency of 36% compared with 21%. Bioenergetics m

APA, Harvard, Vancouver, ISO, and other styles

46

Alimova, Aziza, Boymakhmat Kakhramanov, and Feruza Safarova. "Water quality indicators in high-density cage farming of trout." BIO Web of Conferences 65 (2023): 04003. http://dx.doi.org/10.1051/bioconf/20236504003.

Full text

Abstract:

Trout fishing means raising fish in water whose temperature does not exceed +18°C under completely or partially artificial conditions. Today, several fish belonging to the salmon family are bred in cold water fisheries in the world. These are river trout (Rainbow trout - Oncorhynchus mykiss), brook trout (Brown trout - Salmo trutta), and brown trout (Brook trout - Salvelinus fontinalis). Currently, river trout breeding dominates global production. Its cultivation has been mastered in almost all regions [8]. In the article, the water quality indicators were studied during high-density breeding

APA, Harvard, Vancouver, ISO, and other styles

47

Sorensen, Peter W., Tim Essington, Dana E. Weigel, and James R. Cardwell. "Reproductive interactions between sympatric brook and brown trout in a small Minnesota stream." Canadian Journal of Fisheries and Aquatic Sciences 52, no. 9 (1995): 1958–65. http://dx.doi.org/10.1139/f95-787.

Full text

Abstract:

The reproductive activities of sympatric brook (Salvelinus fontinalis) and brown trout (Salmo trutta) in a Minnesota stream were documented on a regular basis for 3 years to determine whether behavioral interactions between these species might influence their spawning activities and success. The spawning seasons of brook and brown trout consistently overlapped by 2–4 weeks, during which time nearly 10% of all sexually active females were simultaneously courted by males of both species. Male brook trout attempted to hybridize most frequently; however, both our behavioral observations and popula

APA, Harvard, Vancouver, ISO, and other styles

48

Lagunas, Marcos, Arnar Pálsson, Benóný Jónsson, Magnús Jóhannsson, Zophonías O. Jónsson, and Sigurður S. Snorrason. "Genetic structure and relatedness of brown trout (Salmo trutta) populations in the drainage basin of the Ölfusá river, South-Western Iceland." PeerJ 11 (September 5, 2023): e15985. http://dx.doi.org/10.7717/peerj.15985.

Full text

Abstract:

Background Lake Þingvallavatn in Iceland, a part of the river Ölfusá drainage basin, was presumably populated by brown trout soon after it formed at the end of the last Ice Age. The genetic relatedness of the brown trout in Þingvallavatn to other populations in the Ölfusá drainage basin is unknown. After the building of a dam at the outlet of the lake in 1959 brown trout catches declined, though numbers have now increased. The aim of this study was to assess effects of geographic isolation and potential downstream gene flow on the genetic structure and diversity in brown trout sampled in sever

APA, Harvard, Vancouver, ISO, and other styles

49

Olofsson, H., and H. Mosegaard. "Larger eggs in resident brown trout living in sympatry with anadromous brown trout." Ecology of Freshwater Fish 8, no. 2 (1999): 59–64. http://dx.doi.org/10.1111/j.1600-0633.1999.tb00054.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Bosakowski, Thomas, and Eric J. Wagner. "Assessment of Fin Erosion by Comparison of Relative Fin Length in Hatchery and Wild Trout in Utah." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 3 (1994): 636–41. http://dx.doi.org/10.1139/f94-064.

Full text

Abstract:

We measured all fins of 600 hatchery trout sampled from all 10 state fish hatcheries in Utah, and of wild fish sampled as controls comprising 58 rainbow trout (Oncorhynchus mykiss), 33 cutthroat trout (O. clarki), and 54 brown trout (Salmo trutta). A strong linear correlation was found between fin length and total body length (100–300 mm) for all fins of wild rainbow trout. "Relative fin length" (fin length/total body length × 100) proved to be a useful comparative measure, as this statistic was not biased by fish length in the wild fish sampled (all slopes <0.01%). Interspecific comparison

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!