Cape cod canal C&R only question

[zimmy]

Originally Posted by MakoMike

Found this Migrations: Striped bass migrate north and south seasonally and ascend to rivers to spawn in the spring. Males in the Chesapeake Bay may forego coastal migrations and remain in the Bay."

From:https://chesapeakebay.noaa.gov/fish-facts/striped-bass

And this: Kohlenstein
(1981) showed that approximately 50% of the 3-year-old female striped bass in Chesapeake Bay, and a smaller percentage of 2- and 4-year-old females, moved to the coast to join the migration annually. In contrast, few males of that age were migratory."

Fromhttps://www.nwrc.usgs.gov/wdb/pub/species_profiles/82_11-008.pdf

Yeah, I came across the "may forego" too, but there wasn't an explanation or source. It probably comes from that Kohlenstein paper, which I think was the one that lead to the assumption that males stayed in the bay. That is the right time frame. My recollection, and it's been probably 15 years since I actually read a lot of the related literature, was that they looked specifically at the young classes and it was extrapolated that males don't leave, but later studies determined that they just don't leave until they are older. I don't know if/what reasons were hypothesized, but my first guess would be linked to differences in time to mature between males and females. It is a critical consideration when evaluating benefits of a slot.
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[MakoMike]

Originally Posted by zimmy

Yeah, I came across the "may forego" too, but there wasn't an explanation or source. It probably comes from that Kohlenstein paper, which I think was the one that lead to the assumption that males stayed in the bay. That is the right time frame. My recollection, and it's been probably 15 years since I actually read a lot of the related literature, was that they looked specifically at the young classes and it was extrapolated that males don't leave, but later studies determined that they just don't leave until they are older. I don't know if/what reasons were hypothesized, but my first guess would be linked to differences in time to mature between males and females. It is a critical consideration when evaluating benefits of a slot.
Posted from my iPhone/Mobile device

Well, when you add in the fact that over 90% of the coastal fish caught in all of the various studies were all female and add in the fact that we do know that males from the Delaware and Hudson stocks do migrate it makes sense that very few if any Chessie males migrate.