Insight into Danube sturgeon life history: trace element assessment in pectoral fin rays
(2011) In Environmental Biology of Fishes 90(2). p.171-181- Abstract
- Sturgeon populations in the Danube River have experienced severe decline during the last several decades, mostly due to the poorly regulated fishery, river fragmentation and water pollution. This study focuses on gaining better understanding of sturgeon life history primarily by addressing the assessment of microelement accumulation in sturgeon pectoral fin rays, especially of strontium and calcium, as a method that can reveal migration patterns of anadromous sturgeons. Analysis was performed on pectoral fin samples of three anadromous Danube sturgeon species (beluga, Russian sturgeon and stellate sturgeon) by the use of a Nuclear Microprobe technique. The most frequent pattern in analyzed samples was represented by a low Sr:Ca ratio in... (More)
- Sturgeon populations in the Danube River have experienced severe decline during the last several decades, mostly due to the poorly regulated fishery, river fragmentation and water pollution. This study focuses on gaining better understanding of sturgeon life history primarily by addressing the assessment of microelement accumulation in sturgeon pectoral fin rays, especially of strontium and calcium, as a method that can reveal migration patterns of anadromous sturgeons. Analysis was performed on pectoral fin samples of three anadromous Danube sturgeon species (beluga, Russian sturgeon and stellate sturgeon) by the use of a Nuclear Microprobe technique. The most frequent pattern in analyzed samples was represented by a low Sr:Ca ratio in the innermost annuli, followed by an increased ratio in the middle annuli segment, and often with a decreased ratio in the outermost annuli. Probability density estimate has revealed three distinguished maxima of the Sr: Ca ratio, 7.08x10(-3), 8.98x10(-3) and 9.90x10(-3), which might correspond, respectively, to fresh, brackish and saltwater. Although the analysis of the Sr: Ca ratio in sturgeon pectoral fin rays has revealed changes that might indicate probable migration between habitats with different water salinity, further studies are needed for improvement of this method. This study represents the first analysis of this kind that was conducted on sturgeon species from the Black Sea basin. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1882613
- author
- Jaric, Ivan ; Lenhardt, Mirjana ; Pallon, Jan LU ; Elfman, Mikael LU ; Kalauzi, Aleksandar ; Suciu, Radu ; Cvijanovic, Gorcin and Ebenhard, Torbjorn
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Acipenser, Huso, Migration patterns, Pectoral fin microchemistry, Sr:Ca, ratio, Nuclear microprobe
- in
- Environmental Biology of Fishes
- volume
- 90
- issue
- 2
- pages
- 171 - 181
- publisher
- Springer
- external identifiers
-
- wos:000286392400006
- scopus:78751539708
- ISSN
- 0378-1909
- DOI
- 10.1007/s10641-010-9728-4
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
- id
- 6260ece2-75fb-4817-becf-cab75957ba7f (old id 1882613)
- date added to LUP
- 2016-04-01 14:57:50
- date last changed
- 2022-02-19 21:42:26
@article{6260ece2-75fb-4817-becf-cab75957ba7f,
abstract = {{Sturgeon populations in the Danube River have experienced severe decline during the last several decades, mostly due to the poorly regulated fishery, river fragmentation and water pollution. This study focuses on gaining better understanding of sturgeon life history primarily by addressing the assessment of microelement accumulation in sturgeon pectoral fin rays, especially of strontium and calcium, as a method that can reveal migration patterns of anadromous sturgeons. Analysis was performed on pectoral fin samples of three anadromous Danube sturgeon species (beluga, Russian sturgeon and stellate sturgeon) by the use of a Nuclear Microprobe technique. The most frequent pattern in analyzed samples was represented by a low Sr:Ca ratio in the innermost annuli, followed by an increased ratio in the middle annuli segment, and often with a decreased ratio in the outermost annuli. Probability density estimate has revealed three distinguished maxima of the Sr: Ca ratio, 7.08x10(-3), 8.98x10(-3) and 9.90x10(-3), which might correspond, respectively, to fresh, brackish and saltwater. Although the analysis of the Sr: Ca ratio in sturgeon pectoral fin rays has revealed changes that might indicate probable migration between habitats with different water salinity, further studies are needed for improvement of this method. This study represents the first analysis of this kind that was conducted on sturgeon species from the Black Sea basin.}},
author = {{Jaric, Ivan and Lenhardt, Mirjana and Pallon, Jan and Elfman, Mikael and Kalauzi, Aleksandar and Suciu, Radu and Cvijanovic, Gorcin and Ebenhard, Torbjorn}},
issn = {{0378-1909}},
keywords = {{Acipenser; Huso; Migration patterns; Pectoral fin microchemistry; Sr:Ca; ratio; Nuclear microprobe}},
language = {{eng}},
number = {{2}},
pages = {{171--181}},
publisher = {{Springer}},
series = {{Environmental Biology of Fishes}},
title = {{Insight into Danube sturgeon life history: trace element assessment in pectoral fin rays}},
url = {{http://dx.doi.org/10.1007/s10641-010-9728-4}},
doi = {{10.1007/s10641-010-9728-4}},
volume = {{90}},
year = {{2011}},
}