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Variation with age in the timing and duration of spawning in American plaice

✍ Scribed by M. J. Morgan


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
143 KB
Volume
62
Category
Article
ISSN
0022-1112

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✦ Synopsis


Spawning time of female American plaice Hippoglossoides platessoides varied significantly with age. This effect, however, was not consistent across years. Generally, younger fish spawned earlier than older fish, but in the 1990s they spawned later than older fish. Spawning duration also varied with age, with younger fish generally having a longer spawning period than older fish. Changes in depth distribution were related to changes in both spawning time and duration. As depth increased, spawning time became later and duration became shorter. Fish <11 years old showed the largest change in both spawning time and depth distribution.


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