- National Institute of Water and Atmospheric Research, P.O. Box 8602, Christchurch, New Zealand
Synopsis: Diadromy in its three forms (anadromy, catadromy and amphidromy) necessarily involves fish spending part of their lives in the sea. It is not uncommon contention that diadromous fish have a recent marine ancestry and that they are in the process of moving from a marine to a freshwater lifestyle. However, analysis of the distribution of diadromy in fishes suggests that, for most species, it is an ancient life history style though, for a few, a recent marine ancestry seems plausible. In general, there is no reason to consider diadromy anything but a stable and successful life history style, and no reason to regard it as transitional between marine and freshwater habitats.
- 1 - sciences appliquees, technologies et medecines
- 2 - sciences biologiques et medicales
- 3 - sciences biologiques fondamentales et appliquees. psychologie
- 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
- 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics