ISSN 10623604, Russian Journal of Developmental Biology, 2011, Vol. 42, No. 3, pp. 135–136. © Pleiades Publishing, Inc., 2011.
Original Russian Text © N.D. Ozernyuk, 2011, published in Ontogenez, 2011, Vol. 42, No. 3, pp. 163–164.
Investigation of early ontogenesis of fish is impor
tant for analysis of problems of developmental biology
as this group of animals, as the most numerous among
vertebrates, exists (and reproduces) under highly
diverse environmental conditions (Berg, 1955;
Nikol’sky, 1963; Rass, 1983). High diversity of meth
ods of reproduction and of types of early ontogenesis
of these animals is related, to a high extent, to this dis
tinction of fish biology (Kryzhanovskii, 1948, 1949,
1953; Soin, 1968; Pavlov, 2007; Nel’son, 2009).
Evolutionary laws of formation of this group of ver
tebrates and subsequent phylogenetic development are
not the less important factors determining the diversity
of early stages of individual development (Shmal’
gauzen, 1938, 1939, 1946; Severtsov, 1939). The evo
lutionarily older groups of fish (acipenserids, sharks,
and skates) significantly differ in reproduction, egg
structure, and embryonic development from represen
tatives of taxonomic groups that formed later. Thus,
combination of ecological and evolutionary factors
composes the main basis of a considerable diversity of
developmental types of fish.
Investigations of early stages of individual develop
ment of invertebrates, including those having a com
mercial significance, are highly interesting for under
standing of diversity of different types of ontogenesis.
It is known that invertebrates are characterized by
immensely diverse developmental types (Beklemishev,
1964; IvanovaKazas, 1995; Dondua, 2005) and anal
ysis of this problem is a source of information for
understanding of mechanisms controlling this diver
sity. It should be noted that the first essential investiga
tions on genetic regulation of formation of the plan of
body structure and its diversity in different species
were made on invertebrates (Lewis, 1978; Nüsslein
Volhard, Wieschaus, 1980; GarsiaFernandez, 2005;
Andreeva and Kulakova, 2007; Korchagina et al.,
The VIIIth International Conference on Early
Ontogenesis of Fish and Commercial Invertebrates
was held on April 19–23, 2010, in Svetlogorsk (Kalin
ingrad oblast) and dealt with analysis of early stages of
individual development of these animals. The discus
sion concerned, in particular, special traits of repro
duction, embryonic and larval development (differen
tiation, growth, and morphogenesis), and formation
of various metabolic and physiological systems: endo
crine, digestive, olfactive, of behavioral reactions, etc.
Due attention was paid to analysis of adaptations at
early stages of individual development of these animals
and to problems of evolutionary developmental biol
ogy, as fish are often used as an object in investigations
of this problem.
A considerable part of the reports was on analysis of
ichthyoplankton: composition, dynamics of abun
dance in various water bodies, and its fluctuations at
various environmental conditions. This trend of inves
tigations is intensively studied in Russia and is com
mercially important as the obtained results may be
used for prognostication of resources of the world
ocean and of other water bodies.
The conference caused great interest and brought
together specialists from various research institutions
and institutions of higher education of the Russian
Federation and from some foreign countries: Moscow,
St. Petersburg, Kaliningrad, Vladivostok, Murmansk,
Kazan, RostovonDon, Ekaterinburg, Astrakhan,
Tver, PetropavlovskKamchatski, Magadan, as well
Vietnam and Latvia. A considerable interest to prob
lems of early ontogenesis of fish and commercial
invertebrates shown at the conference inspires hope
for further progress in investigations in this important
trend of modern developmental biology.
Andreeva, T.F. and Kulakova, M.A.,
Gene Clusters: The Origin, Structural Organization,
and Functional Significance in Individual Develop
ment and Evolution of Animals, in
molekulyarnye i evolyutsionnye aspekty morfogeneza
(Cellular, Molecular, and Evolutionary Aspects of
Morphogenesis), Moscow: Tovar. Nauchn. Izd. KMK,
2007, pp. 10
Osnovy sravnitel’noi anatomii bespoz
(Fundamentals of Comparative Anatomy
of Invertebrates), Moscow: Nauka, 1964.
Sistema ryboobraznykh i ryb, nyne zhivushchikh i
(The System of FishShaped Lower
Aquatic Vertebrate Animals and Fish, Living and Fos
sil), Moscow: AN SSSR, 1955.
St. Petersburg: Izd. St.Peterb. Univ., 2005, vol. 1.
Early Ontogenesis of Fish and of Commercial Invertebrates
as a Problem of Developmental Biology
N. D. Ozernyuk