Biology and fishery of pond smelt Hypomesus olidus in the Amur River basin

In the Amur River, there are two ecological forms of pond smelt Hypomesus olidus: anadromous and freshwater. Generalized information about biology and fishery of the anadromous form of pond smelt is presented. The smelt migrate to the Amur for spawning in winter and spring, and for wintering in autumn. The most remote point of their spawning migration is Bolbinsky cliff (375 km from the mouth). The spawning herd is represented by three age groups: 2-, 3-, and 4-year-old fish; the two-year-old fish are the most numerous. The sex ratio of spawning smelt is close to 1 : 1, though females prevail slightly. Body length of the pubescent fish ranges from year to year from 7.6 to 13.2 cm, body weight — from 3.05 to 16.04 g; females are slightly larger than males. Absolute fecundity of pond smelt ranges from 0.7 to 12.4 thousand eggs, relative fecundity — from 199 to 1287 eggs/g. During migration to the spawning grounds, the smelt practically do not feed, but they go to active feeding after spawning. Pond smelt is a popular object of fishery in the Amur basin: on average 1569.2 t were caught annually in 2010–2019, during the spawning migration, mainly in the lower Amur River between Nikolayevsk-on-Amur and Bogorodskoe.

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Artificial reproduction of pacific salmons in the Amur River basin: history, current state, prospects

Izvestiya TINRO ◽

10.26428/1606-9919-2020-200-530-550 ◽

2020 ◽

Vol 200 (3) ◽

pp. 530-550

Author(s):

D. V. Kotsyuk

Keyword(s):

River Basin ◽

Chum Salmon ◽

Japan Sea ◽

Amur River Basin ◽

Artificial Reproduction ◽

Amur Basin ◽

Fish Farms ◽

Amur River ◽

The Amur River ◽

Artificial Origin

Experience of pacific salmon artificial reproduction is discussed. Generalized data on juveniles (mostly fall chum salmon) release from hatcheries in the Amur River basin are presented. Information about the fish eggs origin (collection points) and transportation to incubation is provided. Some local features of salmon hatcheries are noted. Thus, the hatcheries in the middle Amur (Teplovsky and Bijansky) used previously the eggs collected in local tributaries of the Amur but recently, in conditions of low abundance of spawners, they transfer the eggs for incubation from fish farms located in the lower Amur. On the contrary, the hatcheries in the lower Amur (Udinsky, Gursky, and Anyuisky) collected the eggs in many dispersed sites in the beginning of their exploitation, but later, when local herds of artificial origin had appeared, they collected the eggs from producers coming to the hatcheries. This experience of eggs collection in dispersed temporary sites could be useful for periods of low stocks of pacific salmons in the Amur basin. The last such period started in 2017, so the fishery officials, as the Amur branch of Glavrybvod, can use this approach. Large transfers of chum eggs within the basin and from other rivers of the Okhotsk Sea and Japan Sea basins, presumably could affect genetic diversity, population structure and gene pool of this species. First results on evaluation efficiency of salmon hatcheries are discussed on the data of otolith marking started in 2015. Negative dependence of chum salmon catch on release of their juveniles is found: increasing of the juveniles output does not provide higher catches. Besides, the number of producers returned to hatcheries does not depend on the number of juveniles released from these hatcheries in the past, but corresponds with general dynamics of salmon stocks in the entire Amur basin. We believe that returns of chum salmon of wild and artificial origin have similar changes caused by same factors influencing on fish in the river and marine periods of their life.

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INTRA-SPECIES GROUPINGS OF CHUM SALMON ONCORHYNCHUS KETA (SALMONIDAE) OF THE AMUR RIVER AND THEIR DISTRIBUTION WITHIN THE BASIN

Izvestiya TINRO ◽

10.26428/1606-9919-2019-197-21-34 ◽

2019 ◽

Vol 197 ◽

pp. 21-34 ◽

Cited By ~ 3

Author(s):

S. F. Zolotukhin

Keyword(s):

River Basin ◽

Chum Salmon ◽

Oncorhynchus Keta ◽

Amur River Basin ◽

Amur Basin ◽

Amur River ◽

Spawning Grounds ◽

Different Types ◽

The Amur River ◽

Major Grouping

Chum salmon in the Amur River basin are represented by two races: summer and fall ones. For the summer race, one population with specific type of spawning grounds is known, but the fall race includes three populations with different types of spawning grounds. In total, four eco-geographical groupings of the species are separated in their reproduction by geographical boundaries of geomorphological zones, as well as temporally and ecologically. Chum salmon do not spawn in the Chinese part of the Amur basin in more than 50 years. In the Russian part, the summer chum salmon spawn completely in the hyporheic waters in late July — August, the major grouping of fall chum (77.1 %) spawns in the spring waters in September-November, other two groupings spawn in the hyporheic waters of the lower Amur in September (20.4 %) and in the spring waters of the lakes near the Amur mouth in October-November (2.5 %).

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GIS methods for inventory of pacific salmons spawning grounds in the Amur River

Izvestiya TINRO ◽

10.26428/1606-9919-2020-200-730-746 ◽

2020 ◽

Vol 200 (3) ◽

pp. 730-746

Author(s):

V. V. Sviridov ◽

S. F. Zolotukhin

Keyword(s):

Information System ◽

Amur River Basin ◽

Amur Basin ◽

Gis Technology ◽

Amur River ◽

Spawning Grounds ◽

Gis Technologies ◽

The Amur River ◽

Gis Methods ◽

Adequate Management

Inventory of spawning grounds is an important tool for estimation of pacific salmons abundance and adequate management of their stocks. A set of the most up-to-date, relevant and effective methods based upon geographic information system (GIS) is substantiated, designed, developed and scheduled to implementation for inventory of the spawning grounds in the Amur basin. Abilities of GIS-technologies for optimization of the surveys planning and conducting and for processing, analysis, visualization and presentation of their results due to accelerated, simplified and enhanced workflow are shown. Three components of modern corporative GIS are presented: server, desktop and mobile ones. The system is partially loaded with the data about spawning grounds, tested for the basic operations as data collection, multi-user editing, geoprocessing, spatial analysis, cartographic visualization, protected web publication, etc., and adjusted and improved using the results of this testing for further implementation in complex fisheries surveys in the Amur River basin. Proposed GIS-technology is modifiable and scalable, so can be spread to other species and areas after appropriate modification; the GIS can be specialized for certain practical tasks.

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ON THE QUESTION ABOUT THE DISTRIBUTION AND ECOLOGICAL RELATIONS BETWEEN TWO SPECIES OF LENOKS (BRACHYMYSTAX, SALMONIDAE) IN THE AMUR RIVER BASIN

Vladimir Ya. Levanidov’s Biennial Memorial Meetings ◽

10.25221/levanidov.08.02 ◽

2019 ◽

Vol 8 ◽

pp. 14-22

Author(s):

A.L. Antonov ◽

◽

N.M. Yavorskaya ◽

Keyword(s):

River Basin ◽

Amur River Basin ◽

Amur River ◽

The Amur River ◽

Ecological Relations

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The sympatric whitefishes Coregonus ussuriensis and C. chadary from the Amur River basin: Morphology, biology and genetic diversity

Fundamental and Applied Limnology / Archiv für Hydrobiologie ◽

10.1127/fal/2016/0801 ◽

2017 ◽

Vol 189 (3) ◽

pp. 193-207 ◽

Cited By ~ 1

Author(s):

NickolaiA. Bochkarev ◽

ElenaI. Zuykova ◽

SergeyA. Abramov ◽

ElenaV. Podorozhnyuk ◽

DmitryV. Politov

Keyword(s):

Genetic Diversity ◽

River Basin ◽

Amur River Basin ◽

Amur River ◽

The Amur River ◽

Basin Morphology

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New taxa in Arundinella and Calamagrostis (Poaceae) from the Russian Far East

Novitates Systematicae Plantarum Vascularium ◽

10.31111/novitates/2017.48.13 ◽

2017 ◽

Vol 48 ◽

pp. 13-22

Author(s):

N. S. Probatova

Keyword(s):

River Basin ◽

New Taxa ◽

Chromosome Numbers ◽

Russian Far East ◽

Far East ◽

Amur Region ◽

Amur River Basin ◽

Amur River ◽

The Amur River ◽

The Russian Far East

Calamagrostis are described from the Russian Far East. Chromosome numbers are reported for two new taxa. Calamagrostis burejensis Prob. et Barkalov, 2n = 28 (sect. Calamagrostis), C. zejensis Prob., 2n = 28 (sect. Deyeuxia), and C. × amgunensis Prob. (C. amurensis Prob. × C. neglecta (Ehrh.) G. Gaertn., B. Mey. et Scherb. s. l.) are described from the Amur River basin (Amur Region or Khabarovsk Territory); Arundinella rossica Prob. (sect. Hirtae) and Calamagrostis kozhevnikovii Prob. et Prokopenko (sect. Calamagrostis) from Primorye Territory.

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The first record of Helobdella nuda (Hirudinida, Glossiphoniidae) in lake Baikal

Vestnik Zoologii ◽

10.2478/v10058-012-0039-4 ◽

2012 ◽

Vol 46 (5) ◽

pp. 40-41 ◽

Cited By ~ 2

Author(s):

I. A. Kaygorodova ◽

S. Yu. Utevsky

Keyword(s):

River Basin ◽

Lake Baikal ◽

First Record ◽

Shallow Waters ◽

Amur River Basin ◽

Amur River ◽

The Amur River

The First Record of Helobdella nuda (Hirudinida, Glossiphoniidae) in Lake Baikal. Kaygorodova I. A., Utevsky S. Yu. - By far, the leech species Helobdella nuda (Moore, 1924) was known from China and the Amur River basin. It is found to occur in shallow waters of Lake Baikal.

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