A critical review of marine adaptability within the anadromous Salmoninae

A critical review of marine adaptability within the anadromous Salmoninae Salmoninae adaptability to the marine environment was evaluated based on the following criteria: (1) extent, and (2) duration of migration; (3) horizontal and (4) vertical habitats; and (5) minimum and (6) maximum thermohaline limits experienced. The most-to-least marine adapted genera were Oncorhynchus, Salmo and Salvelinus, agreeing with Rounsefell’s anadromy ranking. The lowest and highest thermohaline limits were reached by O. keta, S. salar, S. alpinus and S. malma; and O. kisutch, O. keta and O. nerka, respectively. Marine adaptability criteria rearranged Rounsefell’s top three species, with O. keta and O. nerka ranked higher than O. gorbuscha, and suggested recently evolved salmonids are adapted to a more marine life history. Oncorhynchus masou ranked similar to its sister taxa: O. mykiss and O. clarki. Lower ranked salmonids usually evolved earlier, adding evidence to a freshwater salmonid ancestor. More research on marine migration is needed on all Salmoninae, especially the lesser studied trout and charr which demonstrate highly variable life histories compared to salmons. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

A critical review of marine adaptability within the anadromous Salmoninae

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Publisher
Springer Journals
Copyright
Copyright © 2015 by Springer International Publishing Switzerland
Subject
Life Sciences; Freshwater & Marine Ecology; Zoology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-015-9392-z
Publisher site
See Article on Publisher Site

Abstract

Salmoninae adaptability to the marine environment was evaluated based on the following criteria: (1) extent, and (2) duration of migration; (3) horizontal and (4) vertical habitats; and (5) minimum and (6) maximum thermohaline limits experienced. The most-to-least marine adapted genera were Oncorhynchus, Salmo and Salvelinus, agreeing with Rounsefell’s anadromy ranking. The lowest and highest thermohaline limits were reached by O. keta, S. salar, S. alpinus and S. malma; and O. kisutch, O. keta and O. nerka, respectively. Marine adaptability criteria rearranged Rounsefell’s top three species, with O. keta and O. nerka ranked higher than O. gorbuscha, and suggested recently evolved salmonids are adapted to a more marine life history. Oncorhynchus masou ranked similar to its sister taxa: O. mykiss and O. clarki. Lower ranked salmonids usually evolved earlier, adding evidence to a freshwater salmonid ancestor. More research on marine migration is needed on all Salmoninae, especially the lesser studied trout and charr which demonstrate highly variable life histories compared to salmons.

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Jul 25, 2015

References

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