View Full Version : Anadromous fish begin with an "S"

09-06-2005, 03:10 PM
Is it coincidence that anadromous fish begin with an S?
This question has always perplexed me and I have never found an answer.
Let me throw a few more out there while I am on a roll...
Do Steelhead die after they spawn?
What are Salmon doing when they roll? Filling the air bladder? Getting a land bearing?
Drstressor? Where are you hiding?
2Shakes ;D ;D 8)
I am just trying to help you keep that degree active. ;)

09-06-2005, 03:15 PM
Is it coincidence that anadromous fish begin with an S?


09-06-2005, 03:20 PM
Trout fall under steelhead because they are the only ones that migrate.
Lamprey fall under no one cares. Just kidding. I didnt include them because I think they fall under the eel family and I dont know if they are considered fish? Maybe doc will answer that question too?
2Shakes ;D ;D 8)

09-06-2005, 03:34 PM
Whoo Boy!

Arctic Charr and alewives are anadromous also.

Steelhead can spawn more than once. But the trip up the river and the spawning process takes a toll such as there is high mortality.

I don't know why steelhead role. However, I've watched spawning fish around redds and a lot of splashing is caused by males chasing other males away.

Lamprey are not eels but they are fish. They belong to the Class Agnatha. These are primitive jaw less fish with cartilaginous skeletons rather than bony ones.

Any more questions? ;D ;D

09-06-2005, 04:41 PM
We should have an Ask the Doc thread, haha.

09-06-2005, 05:23 PM
Starry Flounder

as well :P

09-06-2005, 05:41 PM
There should be a thread like that...I'd have a ton of em for the good old Docta

09-06-2005, 05:47 PM
Brown trout are anadromous in the Great Lakes. Ever here of a Coaster Brook Trout??

09-06-2005, 05:48 PM
Starry flounder live in the estuaries and come into river mouths. But they don't spawn in rivers. So they are not anadromous. I don't think that smelt spawn in freshwater either. At least they didn't on the East coast. There they would spawn in the brackish water.

09-06-2005, 05:52 PM
Browns in the Great Lakes are not anadromous either since they are always in freshwater. Coaster brookies, Sea Run Browns, and Coastal Cutthroat are sort of in between. They spawn in freshwater. But they only go out to the estuaries for a few months each year to feed or to avoid high water temperature. And not all of the individual fish in the same population go out to sea.

09-06-2005, 05:57 PM
Then why are the Great Lakes Hatcherys (at least Superior and Michigan) labled "Anadromous Hatcherys" ??? ???

09-06-2005, 06:09 PM
Because people in the midwest wouldn't know an anadromous fish if one bit them in the a$$. ;D

Actually it's because those hatcheries mostly raise salmon and steelhead that are anadromous fishes.

09-06-2005, 08:02 PM
Those whacky Midwesterners ;D

09-07-2005, 09:08 AM
For your info I located this document on the DFG website, very informative though a little dated.


Happy reading ;)

09-07-2005, 09:57 AM
Smelt spawn in freshwater in AK in rivers where they run. It's a big deal in Unalakleet, at least, because it's one of the first fishes that come in. I also found out that the whitefish can tolerate brackish water- I don't know if they were Lake Whitefish (a misnomer if there ever was one), Humpback Whitefish or Arctic Whitfish- not that it matters too much. So can the little Arctic Cod.

Just more trivia to through out there...

09-07-2005, 10:16 AM
Doc- I had always heard that salmon were rolling to dislodge the sealice that are attached. What happens to sealice - does the "S" make them anadromous, too?

09-07-2005, 10:40 AM
Sealice aren't fish. ;D They fall off on their own in a few days. Why don't salmon role in saltwater where they are even more heavily infested by sealice.

There are all kinds of stories that try to explain why fish jump or roll on their own. Most are just stories.

BTW, an anadromous fish is a species that spawns in freshwater and spends a significant portion of it's life cycle in the ocean. Fish that wander back and forth between a river and an estuary are not considered anadromous. Striped bass on the West coast are not truly anadromous since not all of them leave the Delta and they don't stay out at sea like many of their ancestral populations do on the East coast. Most the Chesapeake Bay population winters off the Carolina Capes and only enters the estuary to spawn. They migrate further up the East Coast in the late spring and summer. In the southern part of their range (South Carolina, Georgia, and Florida), stripers are not anadromous. The ocean is too warm for them in the summer so they stay in the rivers all year using seeps and spring holes to stay cool.

09-07-2005, 12:02 PM
In Maine, at least, some stripers use the estuary as a refuge from cold sea temps in the winter. At least, that's what I've been told, and they are definitely there in there in the winter.

09-07-2005, 12:35 PM
That's right. The striper populations North of the Chesapeake use the rivers as a winter refuge. The biggest population is in the Hudson River. Hudson fish range at least as far North as Cape Cod during the summer. It's all a matter of temperature and the availability of food. The proximity of the Gulf Stream to the North Carolina Capes keeps the temperature just right for stripers during the winter. And since many of the other mid-Atlantic fish also use that area as a wintering ground, there is plenty to eat. That's also why the Cape Hatteras area has THE best surf fishing in the US during the winter months.

09-07-2005, 02:08 PM
Just one more question doc, how do you pronounce the word anadromous...at least I learned how to spell it ;D

09-07-2005, 02:30 PM

09-07-2005, 02:41 PM
There is an ask the doc thread its called the General Freshwater Discussion Forum... ;D

09-07-2005, 02:57 PM
Now, why do all catadromous North American fish start with an "e"?

Just kidding... ;) ;D

09-07-2005, 03:56 PM
Because there's only one. ;)

09-07-2005, 08:25 PM
Someday, when I grow up(which I've been told to do alot), I want to be like Doc. Your my hero, you seem to take fishing knowledge to a whole new level. ;D ;D ;D

Where do the sea run Browns in Patagonia fall into this?

09-08-2005, 06:50 AM
I can field that one- anadromous.

09-10-2005, 07:42 PM
Something you dont see everyday, while I was managing the Napa Golf Course, Jelly Fish had made their way into our fresh/brackish water ponds. They worked their way up the Napa river from San Pablo bay from the Ocean. Strange thing to see Jelly Fish swimming with bugle mouth Bass. I had no idea what the Jellies were doing---Doc?


09-15-2005, 11:10 AM
Oh c'mon Doc! I thought that we covered the reason "why fish roll" that day when we were out together...it's because they don't have middle fingers! ;D

09-15-2005, 11:17 AM
Oh yeah. I forgot. ;D

09-20-2005, 03:07 PM
This is my thoughts on why salmon roll. I think its because when they get to the fresh water they arent as bouyant so they get this sinking feeling. Then they hop up to the surface to add air to the air bladder so they float a little better like they would in salt and feel more at home traveling up the river. ;)
That is a pretty scientific explanation if I ever heard one. :o
2Shakes ;D ;D 8)

09-23-2005, 07:35 AM
I'm thinking that it is just migratory mating behavior. When the come trough my area I see lots of jumping and splashing, that is when I throw in the lil cleo or Kasrmaster. ;)

09-26-2005, 02:54 PM
Here is a link to one of DFG's online books about anadromous fish if anyone is interested:
2Shakes ;D ;D 8)

09-26-2005, 03:23 PM

Is it salmon role or salmon roll? Is it one of the roles of salmon to roll?

Now I'm really cornfused!


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