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<br />Ions, V. A. 1960. A study of the behavior of the goby in the zone of action of a trap net.
<br />Rybn. kh-vo, No. 2.
<br />Korotkov, V.K. and A. S. Kuz'mina. 1972. Tral, povedeniye ob"yekta lova i podvodnyye
<br />nablyudeniya za nim. (The trawl, the behavior of the fish and underwater observations
<br />of it). Moscow, Pishchevaya promyshiennost'.
<br />Maksimov, Yu. M. 1976. Characteristic features of the defensive reaction of pelagic fishes
<br />from the Gulf of Mexico in the fishing zone of a bottom trawl. Vopr. ikhtiol. , 16, No.
<br />3(98).
<br />Mal'kyavichus, S. K. , G. P. Danyulite and A. A. Samarkin. 1968. On the behavior of some
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<br />ryb v svyazi s taktikoy promysla. (All-Union Conference on the Question of the Study
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<br />In Memory of V.I. Vladimirov
<br />(December 19, 1911-March 151 1976)
<br />Soviet ichthyology has suffered a heavy
<br />loss. On March 15, 1976 at the height of
<br />his creative powers, one of the greatest
<br />ichthyologists of the country, Doctor of
<br />Biological Sciences, Professor Vladimir
<br />Ivanovich Vladimirov died suddenly.
<br />V. I. Vladimirov was born on December
<br />19, 1911 in Bobruysk. All his 45 years of
<br />scientific and public activity were closely
<br />linked with ichthyology and fisheries. His
<br />inclination for scientific work and his out-
<br />standing abilities were evident during his
<br />student years, when he studied at Perm
<br />University and at the same time worked in
<br />the Laboratory of the Scientific Research
<br />Biological Institute of that university.
<br />While still a student he participated in two
<br />major fisheries expeditions, the Irtysb ex-
<br />pedition (1932-1933) and the Novaya Zemlya
<br />expedition (1935). His first scientific work,
<br />"On the biology of the cod in Novaya Zemlya"
<br />was published from data collected during
<br />the Novaya Zemlya expedition.
<br />In 1936 on completing his university
<br />training, Vladimirov began work in the
<br />Sevan Hydrobiological Station in Armenia,
<br />where he engaged in scientific research
<br />work until 1946. In the early years of his
<br />work he studied and described the "Lake
<br />Sevan khramulya" and subsequently his
<br />scientific interest was concentrated on in-
<br />vestigations of the trout of Lake Sevan and
<br />Transcaucasia as a whole. So thorough
<br />was his study of the reproductive biology,
<br />the intraspecific differentiation, stocks and
<br />fishing of the Sevan trout that his work may
<br />quite justifiably take its place among the
<br />classics. He also made a great contribution
<br />to the study of the systematics and origin
<br />of the trout of Transcaucasia, and in par-
<br />ticular he described a new Pliocene species
<br />of trout. The result of his Sevan period of
<br />work was 11 scientific works, a candida-
<br />ture thesis, "The Sevan khramulya" defend-
<br />ed by him in 1940 and a thesis for the degree
<br />of doctor, "The trout of Armenia" which he
<br />successfully defended in 1945. Unfortu-
<br />nately, because of the difficulties of the
<br />post-war period, the latter was not published
<br />in the form of a monograph.
<br />In 1946 Vladimirov transferred to the
<br />Institute for Hydrobiology of the Ukrainian
<br />SSR Academy of Sciences, where he worked
<br />until his death. From 1948 to 1972 he headed
<br />the Department of Ichthyology to which the
<br />former Department of Experimental Fish
<br />Ecology was added in 1965, and in July 1972
<br />he became scientific consultant to.the Depart-
<br />ment of Ichthyology.
<br />The scientific activity of Vladimirov in the
<br />Institute of Hydrobiology of the Ukrainian
<br />SSR Academy of Sciences was varied and
<br />fruitful. Between 1948 and 1950 extensive
<br />studies of fishes in the Soviet section of the
<br />Danube were carried out under his direction
<br />and with his participation, special attention
<br />being paid to the Danube shad. The conditions
<br />of its reproduction, the biology of the larvae
<br />and mortality factors of the early stages of
<br />development were studied. Methods of count-
<br />ing drifting larvae, and recommendations
<br />to fisheries organizations aimed at increas-
<br />ing herring catches were worked out. A
<br />monographic description of the Danube shad,
<br />produced under the direction of Vladimirov
<br />in the Proceedings of the Institute of Hydro-
<br />biology of the Ukrainian Academy of Sciences
<br />(No. 28 in 1953) received recognition in the
<br />scientific community and among practical
<br />workers in the fishing industry.
<br />in 1951 Vladimirov organized and led
<br />research into the biology of fish and fishing
<br />stocks of the Lower Dnieper and the Dnieper
<br />estuary, in connection with the construction
<br />of the Kakhov hydroengineering installation.
<br />He described in detail the places and the
<br />conditions of reproduction of the diadromous
<br />Dnieper sturgeon, herrings, vimba.and other
<br />fishes, and he worked out a forecast of the
<br />changes in reproductive conditions and abun-
<br />dance of diadromous and semi-diadromous
<br />species of fish following the construction of
<br />Kakhov dam, and also in connection with dif-
<br />ferent versions of the damming of the
<br />Dnieper-Bug estuary. These forecasts were
<br />312 313 ISSN0032-9452/77/0200-0313$07.50/0
<br />© 1978 Scripts Publishing Co.
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