|Migratory history of the Russian sturgeon Acipenser guldenstadti in the Caspian Sea, as revealed by pectoral fin spine Sr:Ca ratios|Arai, T.; Levin, A.V.; Boltunov, A.N.; Miyazaki, N. (2002). Migratory history of the Russian sturgeon Acipenser guldenstadti in the Caspian Sea, as revealed by pectoral fin spine Sr:Ca ratios. Mar. Biol. (Berl.) 141(2): 315-319. hdl.handle.net/10.1007/s00227-002-0820-y
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
|Authors|| || Top |
- Arai, T.
- Levin, A.V.
- Boltunov, A.N.
- Miyazaki, N.
Ontogenic patterns of change in pectoral fin spine Sr:Ca ratios were examined in the Russian sturgeon Acipenser guldenstadti from the Caspian Sea. Pectoral fin spine Sr:Ca ratios of the sturgeon fluctuated strongly along the life history transect in accordance with the migration pattern from freshwater to sea (brackish) water habitats, i.e. all specimens exhibited a typical anadromous pattern in the ratio. Several specimens showed two transition points in pectoral fin spine Sr:Ca ratios from low ratios to high, indicating that those specimens had a flexible migration strategy in the ambient water, and could migrate downstream to the Caspian Sea multiple times after spawning.