Essay On Shovelnose Sturgeon

At New Melones Reservoir, despite the continuing snow melt, the water level dropped another foot last week. The water clarity is good and the temperature is slowly coming up, now averaging 76 to 81-degrees. Trout are showing signs of schooling over deep water and feeding on shad minnows. Trollers have been finding trout at 40 to 60 feet with Speedy Shiners, Needlefish, and ExCel lures. Night fishermen have been doing well by anchoring over fairly deep water and lowering their light to about 20 feet. This attracts plankton, which in turn, attracts shad, which will attract larger fish. Live minnows and nightcrawlers are choice baits. The kokanee numbers may be down, but the quality is good with some going 15 to 18 inches. Bladed lures may work well in deeper water as they create vibration which will attract fish. Scented corn on each hook is important. Big trout winner at Glory Hole Sports was, again, Bob James, of Murphys, with a 2-pound rainbow caught at 55 feet in the main lake. Big catfish winner was John Tennant, of Twain Harte, with an 11-pound, 15-ounce fish caught with sardine bait in the main lake. Bass fishing is good for those who specialize in that type of fishing. Hayden Lee, of Angels Camp, recently caught a 10 pound Largemouth Bass on a topwater lure and he had no net in the boat. He and a friend were able to boat the fish for photos before release.

Roanoke Logperch are all very similar in size and color . Most of these fish at the bottom are a cream color that fades to a green-yellow color as you go up , they also have dark markings on their bottom half . Since all of these fish look very similar it is hard to tell the genders apart from one another . Therefore there is one distinctive way to tell and that is that the males have a more vivid orange ring around their first dorsal fin .The top jaw is longer than the bottom so that the fish has more strength to push rocks and sand over . They also can get up to 16.5 centimeters but they usually stay in between 5-7 centimeters . These fish also have bilateral symmetry as in one side is similar to the opposite side .

According to the Peterson Field Guide to Freshwater Fishes of North America North of Mexico, the Central Stoneroller resides in various regions of Wisconsin, but it is not found throughout the state. It occurs in the southern end of the state ranging from the Mississippi River, the lower Wisconsin River, the Rock River, and over in the Little Fox River, to only name a few. It also occurs in the Mississippi River on the western side of the state, a few of its tributaries such as the Chippewa River and the Red Cedar River, and its floodplains. A small portion of central Wisconsin also has this species, such as the Waupaca River and Wisconsin River, as well as streams in the Driftless Area. They do not occur in the northern end of Wisconsin.

Salmon- large popular game fish, liked for their pink flesh, live in sea but come to freshwater to spawn.

Smallmouths have both external fertilization and external development. Feeding for smallmouth tops when the temperature is around 78 degrees and starts to slow down once the temperature goes below 40 degrees. The male always guards the eggs and the babies which are known as fry. The spawning usually occurs in April or May unless the temperature stays cold than it can be delayed. The first person to describe a smallmouth bass was Lacepede is 1802. The fry hatch out of their eggs in about a week and then continue to develop for another week. Young smallmouths are fed upon by yellow perch, Northern pike or muskellunge. Bigger bass are only eaten by northern pike, musky but the main predators of smallmouth bass are humans. The lifespan in the wild is normally about seven years, but some will live up to 20 years. In captivity the average age is ten years. When the young hatch out of their eggs they are about 0.2 inches long, very easy prey for a variety of animals. Multiple females will spawn in the nest of one male and an individual female will spawn in more than one. Smallmouth dance and bite each other, this is their mating ritual. In New York the record smallmouth was 8 pounds, 4 ounces caught out of Lake Erie on 6/4/1995 by Andrew C Kartesz. Smallmouth bass are beginning to destroy Brooke trout fisheries and Atlantic salmon fisheries. The meat of a smallmouth is very firm and good tasting so many people catch the fish not only for the fun of the

The lateral stripe on this minnow is almost non-existent, they lack any sort of barbel, and there is also no caudal spot. They are very lacking with color and often look just silvery. The best way identify this minnow is by counting the anal fin rays, the furthest fin back on the underside of the fish, which there will be seven of. They also have 14 to 17 pectoral fin rays, the two fins on each side of the fish, and between 7 and 9 pelvic fin rays, which is the pair of fins located right in front of anal fin. They usually range between two and one half to three and one half inches long. They have large eyes that are longer than its mouth and a forked tail. Unlike some other minnows, the river shiners’ chest is scaled. It also has a stripe on top of its body, dorsal stripe that surrounds the entire dorsal fin base, which is the fin on top of its body. Where the lateral line would be, there are between 34 and 37 scales. It is very similar looking to the Mississippi silvery minnow color and shape wise too. Some major differences to tell them apart are that river shiners have a slightly larger mouth and seven instead of eight anal fin rays like the Mississippi silvery

Mayden (1993) used E. zonatum for comparisons in describing the new species E. alabamae. Comparing Cypress Creek to sampled E. zonatum populations in the 1993 Mayden paper show that males in Cypress Creek fell into accepted ranges for known populations but looking at the means for body measurements on average males from Cypress Creek were smaller than those measured by Mayden. Female measurements from Cypress Creek paralleled those seen in Mayden’s comparison. However, females from Bayou de Chien were larger on average than females sampled by Mayden while males were similar in measurements. Walsh and Burr (1984) noted that the maximum length of E. zonatum is usually reported as 32-38mm but lacks definition as to whether those numbers refer to standard or total length. Some variation in size for such a wide-ranging species can be caused by more southern individuals growing larger due to earlier spawning periods and longer growing seasons (Walsh and Burr, 1984). Overall, it appears that individuals found above the fall line in Cypress Creek are of similar measurements to other sampled populations of E. zonatum.

Arkansas river shiners release their eggs and sperm into open flowing water which drifts downstream. Arkansas river shiners have been shown to successfully reproduce from May through September when stream flow exists, However, peak reproduction may take place at moderate to higher flows. In the absence of sufficient stream flows, eggs likely settle to the channel floor, where they are covered and smothered by silt and shifting, hindering oxygen uptake and causing mortality of the embryos. Plataina and Altenbach determined that eggs could be transported forty five to eighty nine miles downstream before hatching and developing larvae could then be transported an additional distance before being capable of direct swimming.

The average period of time that sockeye salmon live in the wild is 4 to 5 years. The oldest salmon that was caught was 8 years of age. Usually sockeye salmon die after mating (“Longevity, aging and life history of Oncorhynchus nerka”, 2009; Groot, 1966)One thing about sockeye salmon that is special and unique about them is that they swim in runs when migrating to freshwater streams to spawn. They additionally establish gregarious hierarchies, conventionally at times of reproduction. The most astronomically immense male is most ascendant (Crutchfield and Pontecorvo, 1969; Quinn, 2005). The predators of sockeye salmon are considered to be bears, lake trout, squawfish, mountain whitefish, and birds such as mew gull. Humans additionally consume a considerable about sockeye salmon.

Sturgeon have a similar life cycle to that of pacific salmon with spawning occurring when the female sturgeon releases eggs and the male sturgeon fertilizes them. Incubation happens for a week until the eggs hatch and the new fish rely on nourishment from a yolk sac until they are further grown. The yolk sac provides complete nourishment for the small sturgeon for its first 12-14 days of life. Similar to salmon entering ocean, sturgeon fish can enter areas with higher salt content to look for food. The fish can spawn once they are mature, with the males reaching it first when they are about 12 to 18 years old. Female sturgeons can only reproduce when they are older at 25 to 30 years of age. Unlike salmon, sturgeon can reproduce several times throughout their lifetime and can reproduce every year or every several years, depending on the age of the female. http://hsbc.frasersturgeon.com/rhspsec/Lesson1/Articles/Article1.pdf

Steelhead fishing in the Pacific Northwest is the most sought-after fish in the entire Northwest and there's no guessing why. This anadromous rainbow trout is one of the hardest fighting fish around, and also one of the most challenging to catch. There's a reason for the old Northwest Anglers saying “10% of the Steelheaders catch 90% of the fish”. These acrobatic fish represent the pinnacle of many of a fisherman's time on Northwest waters. Weather it’s the hatchery run, summer run, or the winter run in the pacific northwest the

Salmon have a truly incredible life cycle. Like all fish, salmon spawn from female eggs and then go on to develop into “alevin,” which is a term for newly hatched fish. First off, they derive nourishment from the yolk sac from where the salmon are born. Once the sac has been absorbed, the “fry,” or baby fish, then emerges from the river gravel and starts the search for food. Fry instinctively deal with the river currents and learn to swim together as a school right away. Anywhere from a couple days to two years old, fry will continue to live in fresh water until they start the next, “smolting,” phase. Smolting is a

Sturgeon is the name for the 27 types of fish belonging to the family Acipenseridae. The Sturgeon dates back to 245 to 208 million years ago. 85% of sturgeon species are classified as at risk of extinction. There population has gone down from an estimated population of more than 180,000 sturgeons in the Delaware River. Just two rivers are believed to support more than 300. The Delaware which was the county’s largest, isn’t one of them.

For our research project, we did our project over the Pallid Sturgeon. We researched why Pallid Sturgeons are going extinct and what we can do to restore them. What we had finalized as our final project was to look up the information about the Pallid Sturgeon and why they are going extinct. Our parts were distributed amongst everyone and I did the research regarding the recovery plan for the Pallid Sturgeon. I did all my research using the internet and finding scholarly sources. The main source for a plan that I used was from the fws.gov website. This was a plan from the U.S. Fish & Wildlife Service. This plan was originally approved in 1993 but since then has been revised.

The lifecycle of the New-Zealand chinook salmon is conventional to that of salmon in the North Pacific. chinook salmon (Otherwise known as quinnat or king salmon) mature in the ocean, they typically will reach sexual maturity at 3 years old, but this can vary anything between 2-7 years. (Females take longer than males.) Upon reaching sexual maturity, they will migrate upstream to spawn. Spawning usually occurs in autumn, immediately after all adults die, as the energy expenditure of the process is too significant to recover.