Results 51 to 60 of about 718 (168)

Factors Influencing the Stocking of Juvenile Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, Volume 33, Issue 3, Page 425-437, June 2026.
ABSTRACT Predator species of fish play crucial roles in ecosystem balance through top‐down control, a mechanism frequently exploited in biomanipulation to stock predator species. Juvenile pikeperch (Sander lucioperca) were stocked (n = 52,887) in spring 2023 and 2024 and autumn 2023 to compare stocking efficiency between Recirculation Aquaculture ...
Michaela Holubová, Petr Blabolil, Martin Čech, Vladislav Draštík, Jaroslava Frouzová, Luboš Kočvara, Jan Kubečka, Václav Kučera, Oleksandr Malinovskyi, Milan Muška, Marie Prchalová, Rubén Rabaneda‐Bueno, Pavel Rychtecký, Milan Říha, Zuzana Sajdlová, Michal Tušer, Mojmír Vašek, Tomáš Jůza   +17 more
wiley   +1 more source

Karyotypic characterization of bream, Abramis brama (Pisces, Cyprinidae) [PDF]

Folia Zoologica, 2004
The karyotype of bream Abramis brama was analysed by means of C-banding, replication banding, DAPI fluorescent staining and in situ hybridisation with 18S rDNA and telomeric probes. The use of the in vivo 5-bromodeoxyuridine incorporation technique enabled the induction of replication bands of the RBA type in the karyotype. C-bands corresponded to late
Konrad Ocalewicz, Małgorzata Jankun, Alicja Boroń   +2 more
openaire   +1 more source

Effects of farming practices on the performance of fish pond polyculture assessed by trophic modeling

Journal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract This study aimed to identify species compositions that use resources more efficiently and recommend management practices for extensive and semi‐intensive pond polyculture by modeling food webs and calculating performance indicators. We monitored 8 polyculture fish ponds managed by fish farmers that had contrasting fish species compositions in ...
Purco Ralaiarison Ralien, Angela Larivain, Marc Roucaute, Michael S. Corson, Alexandrine Pannard, Joël Robin, Léo Girard, Mathieu Guérin, Marielle Thomas, Thomas Lecocq, Julie Coudreuse, Sarah Nahon, Kazi Ahmed Kabir, Joël Aubin   +13 more
wiley   +1 more source

Asymmetric hybridization of roach Rutilus rutilus and common bream Abramis brama in controlled backcrosses: Genetic and morphological patterns

Biosystems Diversity, 2020
In most cases in natural environments, hybrids of roach Rutilus rutilus L. and bream Abramis brama L. possess mitochondrial DNA of bream. Presumably, the genetic basis for unidirectional hybridization of roach and bream is the high level of divergence in
V. V. Stolbunova, V. V. Pavlova, Y. V. Kodukhova   +2 more
doaj   +1 more source

Effects of temperature and browning on the functional response of a freshwater top predator

Journal of Animal Ecology, Volume 95, Issue 5, Page 824-836, May 2026.
This study explores for the first time how temperature and browning affect the functional response of a freshwater piscivore, the northern pike. The authors find surprisingly weak effects of browning, challenging visual foraging theory. Pike displayed a rare dome‐shaped functional response in cold clear water, potentially driven by seasonal changes in ...
Viktor Nilsson‐Örtman, Erik Nilsson, Christer Brönmark   +2 more
wiley   +1 more source

A Meta‐Analysis on Environmental Triggers of Spawning Migrations Reveals a New Classification of Thermal Guilds in European Freshwater Fishes

Fish and Fisheries, Volume 27, Issue 3, Page 478-495, May 2026.
ABSTRACT Fish migration through river networks is essential for completing life cycles and accessing critical habitats, but fragmentation increasingly disrupts spawning movements. In Europe, over one million barriers limit connectivity and create trade‐offs between ecological integrity and human uses, such as hydropower, flood control, fisheries and ...
Christian Schlautmann, Robert Arlinghaus, Daniel Hering, Armin W. Lorenz, Christian Wolter, Christian Schürings   +5 more
wiley   +1 more source

Study of adaptation of the gill apparatus of commercial fish of the Ile-Balkhash basin to the effects of pollutants [PDF]

Brazilian Journal of Biology
In recent decades, there has been an increase in the pollution of the waters of the Ile-Balkhash basin by agricultural, industrial and domestic discharges, which has negative consequences for the ichthyofauna.
А. Zhanbyrbayeva, S. Nurtazin, Z. Yessimsiitova, I. Zharkova, Z. Inelova, А. Bakieva, A. Seksembayev   +6 more
doaj   +2 more sources

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

Ladik Gölü (Samsun, Türkiye)'ndeki Çapak Balığı, Abramis brama (L., 1758)'nın Yaşı, Büyümesi ve Üreme Dönemi

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2015
Özet: Bu çalışma, Türkiye iç sularında yaşayan Çapak Balığı, Abramis brama (L., 1758)'nın biyolojik özellikleri üzerine ilk kapsamlı araştırmadır. Ladik Gölü'nden (Samsun) Kasım 2009-Ekim 2010 tarihleri arasında aylık olarak yakalanan toplam 722 birey ...
Savaş YILMAZ, Mesut ERBAŞARAN, Okan YAZICIOĞLU, Nazmi POLAT   +3 more
doaj  

The food of common bream (Abramis brama L.) in a biomanipulated water supply reservoir

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2012
Food composition of common bream (Abramis brama, L.) was studied in the shallow, meso–eutrophic, Hamry reservoir (Czech Republic). Fish were sampled during the daytime in the pre-spawning period (April), the post-spawning (June), summer (July) and autumn
Tomáš Zapletal, Jan Mareš, Pavel Jurajda, Lucie Všetičková   +3 more
doaj   +1 more source