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SRC vs Coho ID - again

2.5K views 19 replies 15 participants last post by  Dale Dennis  
#1 ·
I've found several old posts (almost one a year) on the forum about identifying SRC's and it's still not an easy task when you're trying to differentiate between resident Coho and SRC's. I've seen the photos on recent posts about increasing numbers of rezzies being caught, and I've noted the many pictures of SRC's that are posted all the time. I've also reviewed the informative blog on Gig Harbor Fly Shop's site with a detailed comparison.
http://gigharborflyshop.blogspot.com/2010/01/fish-id-coho-vs-coastal-cutthroat.html
From all this I think it's hard to be confident of an accurate ID from a photo. And with all the variations in color, spots, fin color, etc - its not that easy in person either, unless of course, they have a clipped adipose fin or an obvious red slash. I try to handle fish as little as possible when I bring them to my kayak so I'm not anxious to stick my finger in their throat to check for 'teeth' on the back of their tongue. The standard definition of the jaw line extending past the eye is not very precise either... as you can see in these photos. I'd say the jaw doesn't extend past the eye on this fish, but I'm not so sure - it's close. Adipose fin was intact.
I caught this fish on Sunday in the nice overcast morning on Saratoga Passage while fishing for SRC. I'd estimate about 14-15 inches and 2+ lbs. His behavior said Coho to me with the usual aerobatics. I never assumed it was anything but a Coho and it's nothing like the SRC's I've caught on Vancouver Island. But after seeing all the photos lately (including the thread on Bellingham Bay) of what appears to be identical fish being called SRC's I'm not so sure. He fought hard and I was happy to unhook his nose and send him back home safely. It would certainly be the biggest SRC I ever caught but I'm calling this a resident Coho. With Aug 1 opening fast approaching I'd really like to keep a Coho or two like this for dinner over the season and I certainly don't want to kill an SRC. What do you all think?
Thanks
 
#5 ·
With the spots going well beyond the lateral line, the olive color of the head and the amount of spots on the whole tail....not just some on the upper lobe, I would agree with Evan...cutty. There are some things on the fish that would say Coho so it could be a tough call. Thanks for the post though and nice fish none the less! These posts are great for ID purposes....may save some cutties!
 
#7 ·
Definitely a cutthroat. But sometimes when you're out there fishing, it can be kindof tricky. If you think its a coho on the end of your line, and expect it to be a coho, then sometimes its hard for your eyes to convince your brain its not a coho.

For example:
Its a candlestick.

Image


Oh wait no its two people kissing.

Our brain sometimes sees what it expects to, despite what our eyes tell it. so it can be tricky. Good job on posting to get second opinions, and to educate us about how careful we need to be before bagging a fish.:thumb:
 
#8 ·
A fool proof way to ID a cutt is stick your finger in its mouth along the tongue, If you feel teeth at the base of the tongue it is a cutt. These hyoid teeth point back to the gullet of the fish and are very apparent when you slide your finger back out of the mouth.

Dave
 
#9 ·
If in doubt, let it go.

I've caught some large Coastal Cutts that were
difficult to ID (bright silver, almost no spots,
very very slight color slashes under the jaw)
which takes me back to my first line.

Nice fish!

Dave
 
#11 ·
Coho have a "forked" tail, trout have a "squared" off tail. Look at the photos of the salmon vs. the coho on here. You will see.
Here's a little coho to look at. They also have white gum line. Now compare this to your photo.
 
#12 ·
This is the best and safest way to tell. Coho have forked tails, and trout are squared across. If you really can't tell, just let it go, there's no reason to be sticking your fingers down their throats.

The fork is so distinct that when we measure coho in surveys, the reading is from the nose to the inside of the fork. With cutthroat, you measure to the tip of the tail.

It's easier as you see more of each species obviously, but look at page 28 of the current regs. The coastal cutt has a squared off tail. On page 99 the coho has a fork in the tail, which is even more pronounced in younger fish.
 
#13 ·
Thanks for all your insight and especially for posting a picture of a real Coho. The visual differences are subtle but I think I can finger it out now. :clown:
It was good advice - so unless I'm pretty sure... they all go back to the briny deep.
Maybe someday someone can figure out how these Puget Sound SRC's came to look more like Coho than Cutthroat. Might even be a graduate thesis in there somewhere.
 
#14 ·
In addition to the above, another quick way to differentiate is to squint your eyes a bit and just look at the coloration: Coho give off a bluish hue to them, Coastal cutts have a greenish tone with a yellowish hue to the underside/fin area. This is usually evident as soon as the fish comes toward the surface.
 
#15 ·
The coloration of the sea-run cutthroat is similar to that of the coho for the same reason that all salmonids develop such coloration in salt water: it's the stealthiest color combination for a free-swimming fish which may be prey or predator.
 
#17 ·
If anyone needs sea-run cutthroat 8.5"x11" yellow plastic identification signs to be posted at popular fishing locations we still have some at the Gig Harbor Fly Shop. Next time you're in ask for one and go staple it up. If you have access to private piers that are part of housing developments please put one up. A lot of cutthroat are killed by inexperienced anglers out fishing during the Summer and they just don't know any better.
 
#18 ·
Thanks Blake!

I just dropped some off at Puget Sound Fly Co. as they had run out, and I still have a good supply of posters.

If any of you can use more signs, especially the shops and clubs, pm me and I'll mail some out.

With pinks coming this season, there will be lots more novices on the beaches, so this is a good time to protect the trout.
 
#19 ·
I could probably use a few. I have seen some that were pretty faded, but, they were facing "south" toward the sun. Better to orient them facing north. I'll pick some up at Gig Harbor Fly Shop if I remember. I was in my credit union a few weeks ago and overheard a customer speaking with the clerk. Conversation was that he was going fishing for sea run cutthroat. The gal said, "oh, gonna have a barbeque eh?" The guy said "Yup". I had to speak up at that point and I said "You know they are catch and release right?" Oh, yeah..... (pause) but you can keep the "clipped ones"..... $^&*^%#*)#@#&@
 
#20 ·
HTML:
Conversation was that he was going fishing for sea run cutthroat. The gal said, "oh, gonna have a barbeque eh?" The guy said "Yup". I had to speak up at that point and I said "You know they are catch and release right?" Oh, yeah..... (pause) but you can keep the "clipped ones"..... $^&*^%#*)#@#&@[/QUOTE]

There is no excuse for that kind of stupidity.
Thanks to Don F. I made sure this last spring that every beach access on Camano and Everett I could get too was posted.