good growth demonstrated by Black Sea and Caspian clones on the
White Sea water is clear
evidence that these seaweeds in the freshened seas operate in a narrower salinity zone than
the genotype allows.
Black Sea clones did not grow on the Caspian water, which indicates the inability to
transfer the ionic relationships inherent in the Caspian water.
Undoubtedly, the reason for the inability of the Black Sea clones to grow on the Caspian
water is explained by other ionic relationships of the latter; The Black Sea water is not so
deeply metamorphosed and somewhat closer to the oceanic water than the Caspian Sea, but
the White Sea water is the closest to the oceanic water by the ionic composition [Voronkov
,
1939
].
Differences in the ratio of salts of the Caspian water in comparison with the
oceanic one,
which resulted from the separation of the Caspian from the ocean and formed under the
influence of river runoff, led to radical changes, which are an essential barrier to a number of
marine algae.
REFERENCES
1.
Beklemishev V.N., Baskina V.P. Experimental preconditions for
the ecological geography of
inland waters. / News of Biological Scientific Research Institute of the University of Perm, 1933,
8, p. 9-10
2.
Blinov L.K. Physicochemical properties of the waters of the Caspian Sea and their comparative
characteristics // Proceedings of the State Oceanographic
Institute, 1962, issue 68, с.7-28.
3.
Braarud T. Cultivation of marine organisms in order to elucidate the influence of the
environment on populations // Oceanography. - M. Progress, 1965, p.213-232.
4.
Voronkov P.P. Musina A.A. Salt Composition of the White Sea Water // Proceedings of the State
Hydrological Institute, 1939, issue. 8, p.52-64
5.
Jafarova S.K. Growth of clonal cultures of polyhalobic diatoms with a change in the total salinity
of the environment // Algology, 1991, 1, No. 4, p. 46-51
6.
Zenkevich L.A Biology of the seas of the USSR. - Moscow: Publishing House of the Academy of
Sciences of the USSR, 1963, 739 p.
7.
Lanskaya L.A. Cultures of algae of the Pribosphoric area // Water exchange through the
Bosphorus and its influence on the hydrology and biology of the Black Sea. - Kiev: Science.
Dumka, 1969, p.196-207
8.
Odum Y. Fundamentals of Ecology - M. Mir, 1975, 740 p.
9.
Oceanographic tables - L. Gidrometeoizdat, 1975, 477 p.
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Pora E. Some considerations regarding the factor in the development of life in the Black Sea //
Newsletter of scientific inform. Ser. of natural sciences (Academy of Sciences of the USSR),
1961, issue 1, p.133-140.
11.
Proshkin - Lavrenko A.I. Diatoms of plankton of the Azov Sea. - M; L.: Publishing
House of the
USSR Academy of Sciences, 1963, 190 p.
12.
Finenko Z.Z., Lanskaya L.A. Growth and rate of algal fission in limited volumes of water //
Ecological physiology of marine plankton algae (in conditions of crops). - Kiev NaukaDumka,
1971, p. 22-50.
13.
Harvey H. Modern achievements in chemistry and marine biology. - M; Publishing House
ofForeign Literature, 1948, 244 p.
14.
Droop M. Optimum relative and actual ionic concentrations for growth of some euryhaline
algae// Verh. Int. Ver. theor.und.anqew Limnol., 1958, 8, p. 722-730.
15.
Guillard R, Myklestad S. Osmotic and ionic requirements of the marine centric diatom Cyclotella
nana// Helgoland. Wiss. Meeresuntersuch. 1970, 20, №14, p. 104-110.
16.
Kinne O. Non – genetic adaptation to temperature and salinity// Helgoland. Wiss.
Meeresuntersuch, 1964, 9, №1-4, p.433-458.
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Paasche E. The influence of salinity on the growth of some plankton diatoms from brackish
water // Norw. J. Bot ,1975, 22, №3, p. 209-215.
18.
Pora E. L importance du facteur rhopique ( equilibre ionique) pour la vie aquatique // Verh.
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20
Investigation On Population Genetic Structure Of Caspian Lamprey (Caspiomyzon
Wagneri Kessler 1870) In The Caspian Sea Usinig Microsatellite Molecular Technique.
H. Meftah
1
, Salari-aliabadi, M. A.
2*
,
M., H. Zolgharnein
3
, M. Pourkazemi
4
, A. Farhadi
4
1
Khorramshahr University of Marine Science and Technology, Khorramshahr, Iran.
2*
Khorramshahr University of Marine
Sciences and Technology, Khorramshahr, Iran. Email:
salari@kmsu.ac.ir
3
Khorramshahr University of Marine Sciences and Technology, Khorramshahr, Iran.
4
Genetics and Biotechnology Department, International Sturgeon Research Institute, Agricultural
Research Education and Extension Organization (AREEO), Rasht, Iran
Key words:
Caspiomyzon wagneri, genetic population, Caspian sea, microsatellite.
Lamprey (petromyzontiformes) are a significant ecological cultural ,and economically important fish
groups in the word. There are about 43 lamprey species in 9 genera with only 1 recorded from
Iran(Coad, 2016).Caspian lamprey ,
Caspiomyzon wagneri ,is a Eurashian anadromous non -parasitic
specise(Imanpoor & Abdollahi, 2011). the Caspian lamprey is endemic to the Caspian sea and related
river system in its northern ,western ,and southern watersheds(Holcik, 1986) .The Caspian lamprey in
the southern Caspian sea basin migrates to such rivers as Shirud ,Talar Babolrud ,Karganrud ,Tajan
,Haraz ,Sardabrod ,Aras ,Tonekabon ,Polrud,Sefidrud ,and safarud rivers and the Anzali lagoon(Kiabi,
Abdoli, & Naderi, 1999).This species migrate upstream from the sea where
they spend the feeding stage
and when migration starts ,lamprey stop growing and beginning to mature sexually (Larsen,
1980).Adults die after spawning .During the spawning migration ,the lamprey undergoes certain
morphological changes ,some of which have been linked to the sex of the fish The Caspian sea lamprey
is listed as vulnerable in Europe(Renaud, 1997) and in Iran because it migrates into rivers which are
polluted and dammed and because of its restricted and declining distribution(Coad, 1998). Also this
species to near threatened in the southern Caspian sea according to the IUCN criteria .because of the
valuable ecological importance of Caspian lamprey (Nazari & Abdoli, 2010)
The main of this study was the following: obtaing information about population
differentiation of this
species in four rivers at the reproductive migraton time in the southern Caspian Sea.
The genetic diversity of
Caspiomyzon wagneri population in the Caspian sea was studied using
microsatellite technique .A total of 120 caudal fin samples were collected from adult Caspiomyzon
wagneri specimens caught in the southern Caspian sea ,including specimens from Shirud river ,Babolrod
river ,Talar river ,Kheyrod river . about 2-3 gram of fin tissue was removed from
each caudal fin sample,
stored in 96 % ethyl alcohol and transferred to the genetic laboratory of the mazandaran university.
22