. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. THK FISHERY OF TflK flOLORADO ir)9 Bluegill, Lepomis macrochirus Rafinesque Local Names. Blueg'ill, bluefrill "percli," "perch," sun perch, sunfish. Recognition Characters. The bluegill and green sunfish can be told from the crappies by the following characters: anal fin less than half as long as (loi'sal; 3 anal spines; 10 dorsal spines. Their short bodies (depth about one-half standard length) and t
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. THK FISHERY OF TflK flOLORADO ir)9 Bluegill, Lepomis macrochirus Rafinesque Local Names. Blueg'ill, bluefrill "percli," "perch," sun perch, sunfish. Recognition Characters. The bluegill and green sunfish can be told from the crappies by the following characters: anal fin less than half as long as (loi'sal; 3 anal spines; 10 dorsal spines. Their short bodies (depth about one-half standard length) and the presence of a black "ear flap" on the gill cover easily distinguishes them from the black basses {Huro and Micropterus). These two sunfishes are Frequently confused in the Colorado River as in many other parts of California. The following table will serve to distinguish them. It may be noted that these two species frequently liybridize, and hybrids were seen at several points along the river. Character Portion of opercular flap bearing black spot Tipper jaw Pt'ctoi-al Bluegill Til ill and flexible Not extending nearly to middle of eye Long and pointed (at least 3 times in stand- ard length) Green sunfixh Stiff and bony Extending nearly to (or even beyond) middle of eye Short and rouiide<| times in standard length) (4 Distrihution; Ahmulance; Habitat. The bluegill is abundant in the quiet waters all along the lower river, and in irrigation canals where the water is checked. It is especially common in areas where the cover is thick as in the brushy portions of the lakes above Imperial Dam, near boat landings, etc. It seems to be the most abundant of the centrarchids, despite the report that it is quite a newcomer to the Fig. 70. Haughtelin Lake, an oxbow where bluegills are abundant. Jan. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of th
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