نتایج جستجو برای: anguilla

تعداد نتایج: 1540  

Journal: :Journal of the Marine Biological Association of the United Kingdom 1959

Journal: :Journal of Experimental Marine Biology and Ecology 2021

Nineteen female silver European eels (Anguilla anguilla L.) were tagged with satellite tags and released in the Gulf of Lion Mediterranean during migration seasons 2013 2015. Sixteen transmitted data: five Atlantic Ocean, eleven Mediterranean. Of those, 50% migrating consumed by marine mammals each year, all The diving behaviour recorded after indicated that most likely predators deep toothed w...

Journal: :Applied sciences 2022

The European eel (Anguilla anguilla, Linnaeus 1758) is a catadromous fish with significant cultural, scientific, and commercial value. protection of this species particularly difficult because the biology life cycle remains unknown in many aspects. (A. anguilla) population has declined alarmingly over past 30 years; condition led to questions about long-term welfare species. This work aims perf...

2007
Wann-Nian Tzeng Chih-Wei Chang Chia-Hui Wang Jen-Chieh Shiao Yoshiyuki Iizuka Yi-Jung Yang Chen-Feng You Linas Ložys

Most fish otoliths are composed of aragonite, but occasionally they form a mosaic with its polymorph, vaterite. We found an unusual mosaic structure of extremely low strontium to calcium (Sr/Ca) ratio in the aragonite otoliths of European eels Anguilla anguilla. The mosaic crystal structure in the eel otolith appeared opaque under reflected light after EDTA etching and was confirmed to be a vat...

Journal: :Environmental pollution 2008
C A Oliveira Ribeiro Y Vollaire E Coulet H Roche

Fish consumption is a potential source of human exposure to pollutants. Here, we study residue levels of PCBs in the eel, Anguilla anguilla, from the Nature Camargue Reserve in southern France. Chromatographic analysis (GC-ECD) found seventy identifiable congeners, among which, 10 are considered as dioxin-like PCBs, such as the non-ortho PCB 81 and the mono-ortho chlorobiphenyls PCB105, 114, 11...

2003
J. Behrmann - Godel R. Eckmann

To study the behaviour of silver eels (Anguilla anguilla L.) during their downstream migration, particularly near a hydroelectric power dam, we tagged nine eels with ultrasonic transmitters and tracked their paths in the River Mosel, Germany. The onset of migration coincided with the first flood event that followed the full moon but was independent of daytime, because migration and turbine pass...

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