Status of the Stocks of Siberian Taimen (Hucho taimen) and Sea-run - - PowerPoint PPT Presentation

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Status of the Stocks of Siberian Taimen (Hucho taimen) and Sea-run - - PowerPoint PPT Presentation

Mar 13, 2023 31 likes •525 views

Status of the Stocks of Siberian Taimen (Hucho taimen) and Sea-run Taimen (Parahucho perryi ) in Russia Dr. Mikhail Skopets Distribution of Hucho taimen and Parahucho perryi Distribution of two taimen species in the Far East Siberian taimen

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Status of the Stocks of Siberian Taimen (Hucho taimen) and Sea-run Taimen (Parahucho perryi ) in Russia

  • Dr. Mikhail Skopets
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Distribution of Hucho taimen and Parahucho perryi

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Distribution of two taimen species in the Far East

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Siberian taimen Hucho taimen

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Konin River – the main source of the Tugur River, which is probably the best taimen stream in the world

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The junction of the Assyni & Konin Rivers forms the Tugur River (rain flood at the Assyni)

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Tuyumun R. (tributary to the Tugur) – Siberian taimen spawning grounds

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Tugur R.: the sloughs and bays are high water habitats of taimen

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Braids & log-jams in the Tugur River

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Siberian taimen parr (Tugur R.)

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Parr of the bigger size – this fish is immature

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Mature Siberian taimen skin and scales

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Fish of the Siberian taimen environment: Khadary whitefishCoregonus chadary

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Common whitefish Coregonus lavaretus pidschian

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Chum salmon Oncorhynchus keta

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Arctic grayling Thymallus arcticus pallasi

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Amur grayling form 1 (“lower Amur” type grayling)

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Amur grayling form 2 (yellow-spotted grayling)

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Sharp-nose lenok Brachymystax lenok

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Blunt-nose lenok Brachymystax savinovi

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Crucian carp Carassius auratus

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Common minnow - Phoxinus phoxinus

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Northern pike Esox lucius

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Amur pike Esox reicherti

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Burbot Lota lota leptura

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Sculpin

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137 cm, 29 kg taimen (Tugur R., 2010)

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36+ kg fish (Bichi R., Amur drainage)

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167 cm, 52 kg fish (Tugur, Sep 2011)

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Anyi River (Amur drainage) in October – good taimen habitat

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Young sea-run taimen Parahucho perryi

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Head of a 3-pounder Parahucho perryi

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87 cm sea-run taimen caught in 2009 in the Poronai River (Eastern Sakhalin)

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Botchi River estuary – important sea-run taimen habitats in the nature preserve

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Botchi River – lower reaches

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Botchi R.: Parahucho perryi in a pool

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Parahucho perryi environment – pink salmon

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Parahucho perryi environment - cherry salmon Onchorhynchus masu

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Parahucho perryi environment - Dolly Varden charr Salvelinus malma

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Parahucho perryi environment - white- spotted charr Salvelinus leucomaenis

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Pacific redfin (Tribolodon) fingerlings, Koppi River

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Koppi River (mainland coast of the Sea of Japan)

  • excellent taimen habitats
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Parahucho perryi spawning ground, Koppi River

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  • P. perryi habitat - Moguchi River, SW Sakhalin
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Parahucho perryi habitat - Samarga River, mainland coast of the Sea of Japan, Primorie

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Illegal gillnet catch in the Samarga River mouth, October 2004

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Poronai River at the Sakhalin Island

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Parahucho perryi underwater

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