adipose fin


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adipose fin

[′ad·ə‚pōs ‚fin]
(vertebrate zoology)
A modified posterior dorsal fin that is fleshy and lacks rays; found in salmon and typical catfishes.
References in periodicals archive ?
4%); dorsal fin yellow-brown with multiple oblique rows of dark pigment; adipose fin brown; pectoral fin translucent with 4-5 diagonal bars of dark brown pigment; pelvic fins golden-yellow with darker pigment between rays; anal fin yellow; caudal fin light brown with 3-5 rows of dark pigmentation spanning both lobes, posterior fringes of fin dark brown.
Anglers, of course, may target only hatchery-reared "springers," marked by a clipped adipose fin.
It's a selective coho season, which means a limit of two salmon per day that have a healed adipose fin clip.
13 or 15,000 selective coho quota with a bag limit of two salmon, all coho must have a healed adipose fin clip.
The bulk of the 2011 ocean coho season in waters south of Cape Falcon, near Tillamook, will operate under the now-familiar "marked-selective" rules, meaning only coho with a healed adipose fin clip may be kept.
The resulting Cougar Dam Adult Fish Collection Facility is a lengthy concrete fish ladder that starts at the base of the dam and stair-steps up through 31 small pools to a holding tank where a worker can sort the wild salmon from the hatchery-raised fish - identified by their clipped adipose fin.
The 18-pounder, which took a trolled silver Toby, was missing its adipose fin, which indicated it had been bred and stocked by the Loch Lomond Angling Improvement Association, who do sterling work on the loch and its rivers.
Adipose fin long, anterior margin rising gently and then almost straight for the entire length.
Two had their adipose fins clipped, identifying them as North American hatchery fish.
Currently, a bottleneck exists in terms of the ability to quickly analyze thousands of salmon DNA samples, extracted from scales or adipose fins.
As part of the experiment, many of the 150,000-plus five inch trout stocked into the loch this spring have had their adipose fins clipped so they will be readily identifiable.
That was the largest harvest since 2001, when the state first began requiring the release of spring chinook with intact adipose fins (to protect wild salmon.