Results 51 to 60 of about 5,213 (212)

Long‐term shifts in pikeperch, Sander lucioperca, diet composition in a changing reservoir

Journal of Fish Biology, EarlyView.
Abstract As a significant piscivorous predator, the pikeperch (Sander lucioperca) plays a critical role in regulating aquatic ecosystems. Understanding its size‐related feeding behaviour is thus vital for assessing its impact. To evaluate its role in the ecosystem, stomach content analysis provides useful insights into predator–prey dynamics.
Karlos Ribeiro de Moraes, Million Tesfaye, Daniel Bartoň, Petr Blabolil, Jakub Brabec, Marek Brabec, Vladislav Draštík, Marie Prchalová, Josef Matěna, Milan Muška, Michal Tušer, Tomáš Jůza, Luboš Kočvara, Zuzana Sajdlová, Katerina Soukalová, Allan T. Souza, Marek Šmejkal, Radka Symonová, Milan Říha, Mojmír Vašek, Jan Kubečka   +20 more
wiley   +1 more source

Potential Trophic Competition Between the European Perch Perca fluviatilis and Pikeperch Sander lucioperca

International Review of Hydrobiology, Volume 111, Issue 1, June 2026.
ABSTRACT The European perch Perca fluviatilis and pikeperch Sander lucioperca can co‐occur, potentially competing for food resources. However, few studies have addressed the potential feeding competition between these species. We used carbon and nitrogen stable isotope analysis to assess the potential trophic competition between these species in two ...
Mathieu Toutain, Phillip J. Haubrock, Nadège Belouard, Irmak Kurtul, Sadi Aksu, Özgür Emiroglu, Ali Serhan Tarkan, Paride Balzani   +7 more
wiley   +1 more source

COMPARISON OF MORPHOMETRIC AND MERISTIC ATTRIBUTES OF BREAM (ABRAMIS BRAMA ORTIENTALIS), IN CASPIAN SEA AND ARAS DAM RESERVIOR

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2007
Morphometric and meristic specifications of Abramis brama orientalis of the Caspian Sea and Aras Dam Reservoir was studied in the year 2002. For this purpose, 40 morphometric attributes, 16 meristic attributes and 37 specifications in relation to the ...
H. Khara; A. Keyvan; Gh. Vosoghi; M. Porkazemi; S. Rezvani; Sh. Nezami; M. Ramin; A. Sarpanah; M. Ahmadnezhad
doaj  

Length-Weight Relationships of the Bream Abramis Brama (Linnaeus, 1758) in Beni- Haroun Dam of Mila City (North-East Of Algeria)

Journal of Bioresource Management, 2022
The study of fish growth is a valuable tool in providing good understanding on the general biology and growth of fish populations, in addition to the comparison of the same fish species populations living in remote geographic areas.
Tolba Mounia, Hadjab Ramzi, Chikara Bouziani Mohamed, Berrouk Houda , Kaouachi Nouha   +4 more
doaj  

Warning of Reducing Genetic Diversity of Abramis brama (Berg, 1905) in Gilan Coast Using SSR Markers [PDF]

Journal of Cell and Molecular Research, 2015
Genetic diversity is one of the three levels of biodiversity. The aim of present study was to compare levels of genetic polymorphism between wild Bream populations using seven microsatellite loci.
Zeinab Hosseinnia, Ali Shabani, Hamed Kolangi Miandare   +2 more
doaj   +1 more source

Morphological abnormalities in some dominant fish species from the polluted site of the Pozim River (Udmurt Republic, Russia)

Учёные записки Казанского университета: Серия Естественные науки, 2021
Morphological abnormalities resulting from the anthropogenic load on juveniles of five cyprinid species (common roach (Rutilus rutilus Linnaeus, 1758), common rudd (Scardinius erythrophthalmus Linnaeus, 1758), ide (Leuciscus idus Linnaeus, 1758 ...
A.K. Mineev
doaj   +1 more source

Multi‐Seasonal eDNA Metabarcoding Highlights a Resurgence in Fish Diversity Across a Severely Impacted Estuarine Ecosystem

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Aquatic ecosystems have been in an alarming state of decline for decades. In particular, estuarine ecosystems have experienced long‐term declines in fish diversity due to factors such as habitat degradation, pollution and altered hydrology. Monitoring these systems is often limited by the difficulty and cost of conventional survey methods.
Jake M. Jackman, Naiara Guimarães Sales, Chiara Benvenuto, Andrea Drewitt, Andrew Wolfenden, Peter E. Robins, Ilaria Coscia, Allan D. McDevitt   +7 more
wiley   +1 more source

Four natural cyprinid hybrids recorded from Lake Vansjø, SE Norway

Fauna Norvegica, 1981
An examination of a sub-sample of 356 cyprinid specimens collected in Lake Vansjø, SE Norway in June, Aug. and Oct. 1978 revealed 187 specimens of Abramis brama (L.) and 94 specimens of Blicca bjoerkna (L.) together with four natural cyprinid hybrids, i.
Per Pethon
doaj  

Dynamics of indices of metabolism in muscle tissue, liver and gonads of Abramis brama in different periods of the annual cycle

, 2020
The aim of this research was to study the dynamics of metabolism in the body of bream Abramis brama (L.) at different periods of the annual cycle: pre-spawning, spawning, post-spawning and feeding.
A. Payuta, E. Flerova
semanticscholar   +1 more source

Seasonal Variation of δ13C and δ15N in a Boreal Lake Fish Community—Year‐Round Patterns and Explanatory Variables

Ecology of Freshwater Fish, Volume 35, Issue 2, April 2026.
ABSTRACT Seasonal changes in freshwater ecosystems influence fish resource use through both environmental and biological factors, but year‐round studies that include ice‐covered months have been lacking. We investigated seasonal variation in the stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) using year‐round monthly sampling of the fish ...
E. S. Eerola, B. Hayden, A. J. Piro, K. K. Kahilainen   +3 more
wiley   +1 more source