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(sport fish) Micropterus dolomieu: 2005 [61] Channel catfish (state commercial fish) Ictalurus punctatus: 1987 [61] Texas: Guadalupe bass (freshwater) Micropterus treculii: 1989 [62] Red drum (saltwater) Sciaenops ocellatus: 2011 [62] Utah: Bonneville cutthroat trout: Oncorhynchus clarkii (subspecies utah) 1997 [63] Vermont: Brook trout (cold ...
The following list of known freshwater fish species, subspecies, and hybrids occurring in Washington state is taken from Wydoski and Whitney(2003). Some scientific names have been updated or corrected. Trout nomenclature follows Behnke et al.(2002). Asterisks denote introduced fishes.
Billfish have a long, bony, spear-shaped bill, sometimes called a snout, beak or rostrum. The swordfish has the longest bill, about one-third its body length. Like a true sword, it is smooth, flat, pointed and sharp. The bills of other billfish are shorter and rounder, more like spears. [40] Billfish normally use their bills to slash at ...
Many fish have a number of small outpocketings, called pyloric caeca, along their intestine. The purpose of the caeca is to increase the overall surface area of the intestines, thereby increasing the absorption of nutrients. [32] [33] The number of pyloric caeca varies widely between species, and in some species of fish no caeca are present at all.
The fish are injected with LH-RH hormone to stimulate spawning. The number of eggs a female may produce depends on the size of the fish and can range anywhere from 70,000 to 300,000 eggs. The number of eggs a female may produce depends on the size of the fish and can range anywhere from 70,000 to 300,000 eggs.
Catfish have a powerful sense of smell and can detect some scents at one part to 10 billion parts of water. They also have an extraordinary sense of taste. Even the smallest of catfish have over ...
The petroglyphs are carved on a granite boulder located on a wooded hillside overlooking the eastern bank of the Illinois River. This section of the river lies in the central Illinois River Valley and is administered by the state of Illinois as the Marshall State Fish and Wildlife Area.
Chondrichthyes (/ k ɒ n ˈ d r ɪ k θ i iː z /; from Ancient Greek χόνδρος (khóndros) 'cartilage' and ἰχθύς (ikhthús) 'fish') is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage.