Results 41 to 50 of about 824 (174)

Biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities

Journal of Animal Ecology, EarlyView.
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin, Gaël Grenouillet, Ignasi Arranz, Julien Cucherousset   +3 more
wiley   +1 more source

Osteological characteristics of fish remains from early medieval sedimentary layers of the port in the town of Wolin [PDF]

Acta Ichthyologica et Piscatoria, 2000
In seventeen early medieval sedimentary layers of the port of the town of Wolin, corresponding chronologically with the time period from the beginning of the 9th till the middle of the 13th century, the occurrence of 3 537 bone remains was stated, of ...
J. Filipiak, Z. Chełkowski
doaj   +3 more sources

Haematological characteristics associated with parasitism in bream, Abramis brama orientalis [PDF]

Journal of Parasitic Diseases, 2013
A parasitological investigation was done on 175 specimens. Infections of A. brama orientalis were analyzed according to the age and sex. The fish also were examined for evaluation changes of haematological parameters in relation to parasitic infection.
Mohammad Reza, Hayatbakhsh, Hossein, Khara, Rashideh, Movahed, Mohammad, Sayadborani, Javad Daghigh, Rohi, Mohadesseh, Ahmadnezhad, Mina, Rahbar, Amir Sajedi, Rad   +7 more
openaire   +2 more sources

“Just put them in a group?” Teaching cooperation in childhood: Behavioural effects of a structured, tech‐supported intervention

British Journal of Educational Psychology, EarlyView.
Abstract Backgrounds Cooperation is a core social skill essential for learning and citizenship, yet spontaneous cooperation in group settings cannot be taken for granted. Aims This study investigates whether a structured, technology‐supported Cooperative Learning (CL) intervention can foster greater levels of observable cooperative behaviour in primary
Benedetta Zagni, Mark Van Ryzin, Dario Ianes, Sara Scrimin   +3 more
wiley   +1 more source

The diet, growth and condition of common bream, Abramis brama (L.) in Włocławek Reservoir [PDF]

Acta Ichthyologica et Piscatoria, 2001
Within 1997-1999, studies were carried out in Włocławek Reservoir to determine diet composition, growth rate, and condition of common bream, Abramis brama (L.)-the dominant fish species there.
T. Kakareko
doaj   +3 more sources

Recovery of Four Commercial Fish Stocks in Lake IJsselmeer (The Netherlands) After Major Fishery Management Interventions

Fisheries Management and Ecology, EarlyView.
ABSTRACT Sustainable management of inland fisheries presents major challenges because it often involves complex and open access systems. Lake IJsselmeer is among the largest freshwater lakes in western Europe and supports active commercial fisheries.
Joey J. J. Volwater, Justin C. Tiano, Kelly Chin, Joep J. de Leeuw   +3 more
wiley   +1 more source

Abramis brama

, 2007
Published as part of Nurettin Meriç, Lütfiye Eryilmaz & Müfit Özulug, 2007, A catalogue of the fishes held in the Istanbul University, Science Faculty, Hydrobiology Museum., pp.
Nurettin Meriç, Lütfiye Eryilmaz, Müfit Özulug   +2 more
openaire   +2 more sources

Integrating environmental DNA, diving surveys and DNA barcoding to track endangered twaite shad (Alosa fallax) spawning sites

Journal of Fish Biology, EarlyView.
Abstract The twaite shad (A. fallax), an anadromous fish species belonging to the Clupeidae family, has experienced population declines throughout Europe. This decline is attributable to a range of anthropogenic pressures, including migration barriers, environmental pollution, habitat degradation, predation by invasive species and unsustainable fishing
Alessia Ardenghi, Laura Filonzi, Nicolò Bellin, Pietro Maria Rontani, Matthew A. Campbell, Mattia Saccò, Morten E. Allentoft, Daniele Nizzoli, Armando Piccinini, Riccardo Papa, Francesco Nonnis Marzano   +10 more
wiley   +1 more source

Renal Trichodinosis in the Japanese Rice Fish, Oryzias latipes: First Report and Phylogenetic Classification

Journal of Fish Diseases, EarlyView.
ABSTRACT Investigation of a disease outbreak in a hobbyist's medaka (Oryzias latipes) collection led to the detection of Trichodina sp. in the kidney tubuli of individual fish. Based on this observation, a thorough clinical workup, including native microscopy, histopathology and molecular genetics, was conducted.
J. Harl, K. Lipnik, S. Thalguter, E. Lewisch   +3 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