Results 41 to 50 of about 718 (168)
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 +3 more
wiley +1 more source
Abstract Introduction Over 44% of European lakes fail to meet ecological quality standards, prompting substantial investment in lake restoration to achieve good ecological status. Unfortunately, effects are often short‐lived due to persistent internal phosphorus (P) loading and strong cyprinid‐driven bottom‐up control, which limits water quality ...
Emma Polauke +3 more
wiley +1 more source
Variation in Life History Characteristics of Common Bream (Abramis brama) Populations in Sweden
ABSTRACT Knowledge of life history characteristics is important for fisheries management and monitoring of ecosystem integrity. This study examines life history characteristics of common bream (Abramis brama) from Swedish Baltic Sea coastal areas, two larger lakes and five smaller lakes in Sweden.
Göran Sundblad +7 more
wiley +1 more source
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
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye +21 more
wiley +1 more source
Four natural cyprinid hybrids recorded from Lake Vansjø, SE Norway
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
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 +4 more
doaj
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 +7 more
wiley +1 more source
Warning of Reducing Genetic Diversity of Abramis brama (Berg, 1905) in Gilan Coast Using SSR Markers [PDF]
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 +2 more
doaj +1 more source
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

