Migration of Sakhalin taimen (Parahucho perryi): Evidence of freshwater resident life history types

Zimmerman, C. E.; Rand, P. S.; Fukushima, M.; Zolotukhin, S. F.

Abstract:

Sakhalin taimen (Parahucho perryi) range from the Russian Far East mainland along the Sea of Japan coast, and Sakhalin, Kuril, and Hokkaido Islands and are considered to primarily be an anadromous species. We used otolith strontium-to-calcium ratios (Sr/Ca) to determine the chronology of migration between freshwater and saltwater and identify migratory contingents of taimen collected from the Koppi River, Russia. In addition, we examined taimen from the Sarufutsu River, Japan and Tumnin River, Russia that were captured in marine waters. Transects of otolith Sr/Ca for the Sarufutsu River fish were consistent with patterns observed in anadromous salmonids. Two fish from the Tumnin River appeared to be recent migrants to saltwater and one fish was characterized by an otolith Sr/Ca transect consistent with marine migration. Using these transects as benchmarks, all Koppi River taimen were classified as freshwater residents. These findings suggest more work is needed to assess life history variability among locations and the role of freshwater productivity in controlling migratory behavior in taimen. ?? 2011 Springer Science+Business Media B.V. (outside the USA).

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Article

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70032605

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Zimmerman, C. E.; Rand, P. S.; Fukushima, M.; Zolotukhin, S. F.

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232

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English

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Environmental Biology of Fishes

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Migration of Sakhalin taimen (Parahucho perryi): Evidence of freshwater resident life history types; 2012; Article; Journal; Environmental Biology of Fishes; Zimmerman, C. E.; Rand, P. S.; Fukushima, M.; Zolotukhin, S. F.