The Biwa trout (Oncorhynchus rhodurus) is an anadromous salmonid fish of the genus Oncorhynchus, endemic to Lake Biwa in Shiga Prefecture, Japan, but also introduced to Lake Ashi and Lake Chūzenji. While called trout, the fish is most closely related to the masu salmon (Oncorhynchus masou) of the western Pacific Ocean, and is most often considered a subspecies of it, Oncorhynchus masou rhodurus.[1]
Biwa trout is found only in the waters of northern Lake Biwa, and feeds on plankton, freshwater prawns, aquatic insects, worms, ayu and other small fishes, and sometimes small mammals. Adult Biwa trout usually range from 40 to 50 cm (16 to 20 in) in length and 1.5 to 2.5 kg (3.3 to 5.5 lb) in weight, although large specimens can be up to 70 cm (28 in) long and 5.0 kg (11.0 lb) in weight.
^rhodurus, Oncorhynchus Archived February 17, 2015, at the Wayback Machine In: W. Eschmeyer: Catalog of Fishes Online Database. California Academy of Sciences. Downloaded 16 Feb 2015
The Biwatrout (Oncorhynchus rhodurus) is an anadromous salmonid fish of the genus Oncorhynchus, endemic to Lake Biwa in Shiga Prefecture, Japan, but...
Lake Biwa (琵琶湖, Biwa-ko) is the largest freshwater lake in Japan. It is located entirely within Shiga Prefecture (west-central Honshu), northeast of the...
m. formosanus) in landlocked waters of Taiwan, the Biwatrout (O. m. rhodurus) endemic of Lake Biwa, and the anadromous amago (O. m. macrostomus) restricted...
species, namely six species of Pacific salmon and six species of Pacific trout, all of which are migratory (either anadromous or potamodromous) mid-level...
subspecies of Oncorhynchus rhodurus, a name that currently only refers to the Biwatrout, which has a restricted distribution within the range of the amago. Varying...
nare-zushi is also made from freshwater fish such as ugui, hasu, moroko, Ayu Biwatrout, koi, and dojo. Nare-zushi has been designated as Shiga's food cultural...
to home in on the river entrance and even their natal spawning ground. Trout, which are sister species of salmon, also perform similar migrations, although...
contains Japan's highest mountain, Mount Fuji, and its largest lake, Lake Biwa. Most of Japan's industry is located in a belt running along Honshu's southern...
invasive species that wreaked havoc with native species, especially in Lake Biwa. Akihito has since apologized. Bluegill live in the shallow waters of many...
Chinese giant salamander, Chinese/Japanese hybrid salamander, giant Lake Biwa catfish, Amur catfish, tiger pufferfish, turtle For the first time in his...
resident Manabu Kurita caught a 22-pound 4 ounce largemouth bass in Lake Biwa. The increasing popularity of the sport combined with "catch and release"...
such as sickles, hoes, knives and western-style scissors – Bōsō Peninsula Biwa Hamaguri Ise ebi Peanuts Soy sauce Takenoko Aji no tataki, chopped horse...
east Asia, they include Gangesia margolisi Shimazu, 1994 from giant Lake Biwa catfish (Silurus biwaensis) in Japan, Gangesia oligonchis Roitman & Freze...
offering [13] [14] #008 Lake Biwa and Its Surroundings: A Water Heritage Site of Life and Prayer 琵琶湖とその水辺景観～祈りと暮らしの水遺産～ Biwa-ko to sono mizu-be keikan (inori...
habitat and guano deposition) and fisheries (through predation). At the Lake Biwa rookeries, between 10,000 and 25,000 cormorants were shot annually between...
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