scholarly journals Application of microsatellite markers for genetic conservation and management of Persian sturgeon (Acipenser persicus , Borodin, 1897) in the Caspian Sea

2013 ◽  
Vol 29 (4) ◽  
pp. 696-703 ◽  
Author(s):  
M. Moghim ◽  
A. Javanmard ◽  
M. Pourkazemi ◽  
S. G. Tan ◽  
J. M. Panandam ◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Caspian Sea ◽  
Genetic Conservation ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Acipenser Persicus ◽  
Conservation And Management ◽  
Persian Sturgeon Acipenser Persicus

Diet composition of the Persian sturgeon Acipenser persicus at the coast of the Guilan Province, Caspian Sea

2009 ◽  
Vol 35 (4) ◽  
pp. 331-334 ◽  
Author(s):  
K. Haddadi Moghadam ◽  
Z. Pajand ◽  
H. Parandavar ◽  
F. Chubian ◽  
M. Pahlavan Yali
Keyword(s):  
Caspian Sea ◽  
Diet Composition ◽  
Persian Sturgeon ◽  
Acipenser Persicus ◽  
Guilan Province ◽  
Persian Sturgeon Acipenser Persicus

scholarly journals Population dynamics and the risk of stock extinction of Persian sturgeon (Acipenser persicus Borodin) in the Caspian Sea

2020 ◽  
Vol 28 (2) ◽  
pp. 62-72
Author(s):  
Hasan Fazli ◽  
Mahmoud Tavakoli ◽  
Mohammad Reza Khoshghalb ◽  
Mehdi Moghim ◽  
Tooraj Valinasab
Keyword(s):  
Caspian Sea ◽  
Population Biology ◽  
Significant Proportion ◽  
Anthropogenic Factors ◽  
Total Biomass ◽  
South Caspian Basin ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Acipenser Persicus ◽  
The Impact

AbstractPersian sturgeon, Acipenser persicus Borodin, has been the most significant proportion of Iranian commercial sturgeon catches in the Caspian Sea over in the last three decades. This endemic species has suffered continuous population declines from the impact of anthropogenic factors. The present study filled in information gaps on underlying population biology parameters, evaluated the population status, and determined the vulnerability risk of the stock extinction of Persian sturgeon in the south Caspian basin of Iran. Growth parameters were L∞ = 224.7 cm, K = 0.058 years−1, t0 = -3.4 years. Sexual maturity of 50% for males and females was FL = 127.2 cm and 137.5 cm, respectively. The long-term age composition data showed 35 age groups, and the ages of 14–18 years comprised 80% of the total catch. Natural mortality was 0.123 years−1, and fishing mortality ranged between 0.104 and 0.331 years −1. The total biomass trend decreased and collapsed from 6,071.3 tons in 1990–91 to 144.1 tons in 2014–15. Although >93% of the catch included maturing specimens, the Persian sturgeon stock is now critically endangered because of several anthropogenic factors.

SPECIFIC FEATURES OF METAL ACCUMULATION IN THE RUSSIAN (ACIPENSER GUELDENSTAEDTII, BRANDT, 1833) AND PERSIAN (ACIPENSER PERSICUS, BORODIN, 1897) STURGEON OF THE CASPIAN SEA

Fisheries ◽  
2020 ◽  
Vol 2020 (6) ◽  
pp. 47-52
Author(s):  
Vladimir Chaplygin ◽  
Alisher Khursanov ◽  
Tatiana Ershova ◽  
Vyacheslav Zaitsev
Keyword(s):  
Metal Accumulation ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Biological Features ◽  
Acipenser Gueldenstaedtii ◽  
Acipenser Persicus ◽  
Iron Copper ◽  
Copper Manganese ◽  
Almost All ◽  
Persian Sturgeon Acipenser Persicus

In the course of the research, the biological features of the accumulation of microelements by the organs and tissues of the Persian sturgeon in comparison with the Russian, as well as the regularities of the age accumulation of sturgeon were revealed. Studies of the elemental composition of organs and tissues of the Persian (Acipenser persicus, Borodin, 1897) and Russian (Acipenser gueldenstaedtii, Brandt, 1833) sturgeon revealed a number of specific features associated with different rates of metabolic processes in fish: the level of iron, copper, manganese, zinc, and mercury in the Persian sturgeon (Acipenser persicus) in almost all organs and tissues, it was recorded higher than in the Russian, at the same time, the content of cadmium and cobalt indicates its greater accumulation in the organs and tissues of the Russian sturgeon (Acipenser gueldenstaedtii).

scholarly journals Hydrology and water resources in Caspian Sea

2016 ◽  
Vol 374 ◽  
pp. 113-116
Author(s):  
Kourosh Haddadi Moghaddam
Keyword(s):  
Water Resources ◽  
Caspian Sea ◽  
Stomach Contents ◽  
Flood Frequency ◽  
The Caspian Sea ◽  
Persian Sturgeon ◽  
Acipenser Persicus ◽  
Bony Fishes ◽  
Significant Difference ◽  
Hydrology And Water Resources

Abstract. Precipitation is the main driver of the water balance variability of the water over space and time, and changes in precipitation have very important implications for hydrology and water resources. Variations in precipitation over daily, seasonal, annual, and decadal time scales influence hydrological variability over time in a catchment. Flood frequency is affected by changes in the year-to-year variability in precipitation and by changes in short-term rainfall properties. Desiccation of the Caspian Sea is one of the world's most serious ecosystem catastrophes. The Persian Sturgeon (Acipenser persicus) caught under 10 m depth using bottom trawl net by research vessel during winter 2012, summer and winter 2013 and spring 2014 in east, central and west of southern parts of Caspian Sea, then, their diets were investigated. During 136 trawling in the aimed seasons, Persian sturgeon with 1 to 2 years old and 179.67 × 0.2 g (body weight) and 29.97 ± 0.4 cm (Total length) captured. Examination of stomach contents in the sturgeon specimens revealed that the food spectrum was composed of bony fishes (Neogobius sp., Atherina sp. and Clupeonella delicatula), invertebrates belonging to the family Ampharetidae polychaeta worms including (Hypanai sp. and Nereis diversicolor), various crustaceans (Gammarus sp. and Paramysis sp.). Investigation on stomach contents of sturgeon Acipenser persicus caught under 10 m depth in 2012 to 2013 surveys showed that there is significant difference in the consumed food. The most food diversity have been observed in winter 2013, also Polychaeta is the primary consumed food and crustacean is the secondary one (P > 0.05), no new types of food (such as bony fishes or benthics) have been observed on food chain of Acipenser persicus and shows no significant difference (P > 0.05).

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