1/31/2024 0 Comments Apache trout![]() Froese, Rainer Pauly, Daniel (eds.) (2012).Oregon Department of Fish and Wildlife, Corvallis Proceedings of the wild trout-catchable trout symposium. Biology of a southwestern salmonid, Salmo apache (Miller 1972). Patterns of variation and distribution in Apache trout (Salmo Apache) relative to co-occurrence with introduced salmonids. Status, distribution, biology, and conservation of two rare southwestern (U.S.A.) salmonids, the Apache trout, Oncorhynchus apache Miller, and the Gila trout, O. Additionally, there are numerous consumptive fishing opportunities for Apache trout in waters where natural reproduction is not occurring and the Apache trout population is the result of stocking efforts. Catch and release fishing opportunities for wild (stream born), pure-strain Apache trout exist in a limited number of areas. Many of the Mount Baldy headwater streams that are the stronghold of Apache trout are entirely closed to fishing. The range of the Apache trout remains limited, which puts it at risk, but it is now common enough that limited fishing is permitted. Cutthroat trout are also genetically similar and cross-breed with Apache trout, compromising the genetic purity of each species. Today, the main risk to the Apache trout is its easy hybridization with the rainbow trout and major forest fires. Population numbers for this species are still rising. When this act was replaced by the Endangered Species Act of 1973, they became one of the first fish species protected under the newer Act. Once the Endangered Species Act of 1969 was passed, they became one of the first species listed under it. By the late 1960s, their range had been reduced to around 30 miles (48 km) of these streams. ![]() Around 100 years ago, they could be found in 600 miles (970 km) of streams in the White Mountains. While the IUCN considers the Apache trout to be critically endangered, it is listed as threatened under the Endangered Species Act. Apache trout are raised in federal and state hatcheries, and reared fish have been used to assist with recovery and to maintain populations for sport fishing in certain streams and reservoirs. Recovery and management efforts for Apache trout have been ongoing since the 1940s. Map showing Apache Trout occurrences in Arizona In lakes, they also eat small fishes and zooplankton. The Apache trout eats both terrestrial and aquatic insects, such as Trichoptera and Diptera. Maturity was found to occur in three years, and fecundity is based on the size of trout. The Apache trout spawns from March to the middle of June, and varies with elevations. Apache trout exist in their most pure form within headwater streams at an elevation of 2,100m or higher in the White Mountain Apache Reservation. Apache trout have been introduced into isolated streams outside of their historic range in the Pinaleno Mountains and the North Rim of the Grand Canyon. The Apache trout is native to the upper Salt River watershed ( Black and White rivers) and the upper Little Colorado River watershed. It natively lives in clear, cool streams in the White Mountains that flow through coniferous forests and marshes, but has been introduced into several lakes in the area. ![]() The Apache trout is the state fish of Arizona, and is one of only two species of trout native to that state, with the other being the gila trout ( O. There can be a throat mark below the lower jaw, ranging in color from yellow to gold. The top of its head and back are dark olive in color, and it has the appearance of having a black stripe/mask through each of its eyes, due to two small black dots on either side of the pupil. Apache trout are a yellowish-gold color with a golden belly and have medium-sized dark spots that are evenly spaced and that may extend below the lateral line and onto the dorsal and tail fins. It rarely exceeds 10 in (25 cm), but can reach up to 16 in (40 cm) in its native, headwater streams. The Apache trout measures in length from 6 to 24 in (15–61 cm), and weighs between 0.4 to 6 lb (0.2–2.7 kg). The Apache trout, Oncorhynchus apache, is a species of freshwater fish in the salmon family (family Salmonidae) of order Salmoniformes.
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