Tail may or may not have "round" spots in the upper lobe. Occasionally, coho will have spots in both lobes of the tail. "Small" spots may or may not be present on the back. Note that the coloration at the base of the teeth is consistent with the area inside and outside the mouth.

2024年6月4日 · Tail: Coho tail fin rays have hardened segments that can be felt. Chinook lack these segments. When salmon enter the ocean, they take on a uniform silver coloration Spot pattern and jaw characteristics are the only reliable ways to identify coho in marine habitats. Look for spots only on the back and upper tail lobe.

Please note, when salmon enter fresh water they undergo significant physical changes including changes in coloration. This chart is intended to help anglers identify salmon by species. However, it is the angler’s responsibility to be able to positively identify the species at …

2022年9月16日 · Anglers can tell coho and chinook salmon apart by touching the bone segments in their tail fin ray. The proper way to do this is by lightly running a fingernail atop the fin ray of the fish. If you can feel the bone, it’s a coho salmon. If you cannot feel the bone segments, then it’s a chinook salmon.

2013年3月16日 · Tail- both the upper and lower lobes of the tail are covered with spots and silver is prominent. Coho Jaw- mouth is white and the gum line is almost white, but the tongue may be black. The teeth are sharp and strong. Tail- has just a few scattered spots, usually on the upper lobe, with silver streaks. It has a wide caudal peduncle.

Steelhead have a completely white mouth (left) and a square tail with a thick peduncle (right). Coho are deeper bodied than steelhead, spots are larger and less numerous than on steelhead. Males often have a hook nose. Coloration of mature fish often includes red (maroon) flanks and a …

Spawning adults can be distinguished from Chinook Salmon by the lack of black spots on the lower lobe of the tail and by their white gums. Coho salmon fry. Photo by Roger Tabor, USFWS. DIET: Young Coho Salmon feed on plankton, crustaceans and insects.

Tail: The tail might have a few scattered spots, usually on the upper lobe, with silver streaks. Eye: The pupil is very large in comparison with the iris and is much bigger than the pupil of the other types of salmon. Body: Lay the fish on its side and look down the side of the fish.

2019年10月18日 · Another way to distinguish coho from chinook is on the tail. Coho have ridges on their tails that you can feel with your thumbnail, similar to the ridges on a quarter; chinook don’t. The gum line is the easiest method; the tail method can be a confirmation.

However, coho will have a white gum line on the lower jaw with darker color both inside and outside of the gum line, and will only have spots on the upper lobe of their tails. When coho return to freshwater they become red on their sides and dark greenish on their backs, heads, and fins.