Results 111 to 120 of about 756,055 (205)

Determination of polycyclic aromatic hydrocarbons (PAHs) in water, sediment and tissues of five sturgeon species in the southern Caspian Sea coastal regions

Caspian Journal of Environmental Sciences, 2012
Concentration levels of 16 polycyclic aromatic hydrocarbons (PAHs) consisting of naphthalene, acenaphthylene, acenaphthene, fluorine, phenantherene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k ...
Khoshbavar-Rostami, H.A., Soltani, M., Yelghi, S., Hasanzati- Rostami, A.   +3 more
doaj  

Age Composition and Prediction of Optimum Fishing Mortality (Fmsy) for the Beluga, Stellate Sturgeon, Persian Sturgeon and Russian Sturgeon in the South Part of the Caspian Sea

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998
Eight years (1990-1997) of the Beluga, Stellate Sturgeon, Persian Sturgeonand Russian Sturgeon in the south part of the Caspian Sea were analyzed for age composition. Yield-per-recruit curves were derived for each species based on growth parameters and mortality rates, and the optimum fishing mortality in terms of yield-per-recruit was calculated as a ...
openaire   +2 more sources

Improving commercial protocols of Russian sturgeon at larval & fingerling life stages: measuring the effects of weaning on the survival of Russian sturgeon larvae using live feed & measuring the effects of increasing stocking densities on the growth and survival of Russian sturgeon fry

, 2023
The present study was performed to improve protocols for the commercial production of Russian sturgeon at the larval and fingerling life stages. Two trials were undertaken, the first trial ran for 35 days and focused on reducing mortality rates at the larval stage by implementing a co-feeding strategy using live artemia cultures.
openaire   +1 more source

A novel electronarcosis method to anaesthetize adult sturgeon in the river during surgical implantation of acoustic tags

Scientific Annals of the Danube Delta Institute, 2017
Migration and behavioral studies conducted on large fish species often imply electronarcosis and tagging activities. Even if individuals are anaesthetized, tagging operations require considerable handling efforts and, moreover, the likelihood of inducing
IANI Marian , HONŢ Ştefan, PARASCHIV Marian, SUCIU Radu   +3 more
doaj  

Gonadotropins in the Russian Sturgeon: Their Role in Steroid Secretion and the Effect of Hormonal Treatment on Their Secretion. [PDF]

PLoS One, 2016
Yom-Din S, Hollander-Cohen L, Aizen J, Boehm B, Shpilman M, Golan M, Hurvitz A, Degani G, Levavi-Sivan B.   +8 more
europepmc   +1 more source

Development of female Russian sturgeon (Acipenser gueldenstaedtii) and hybrid (Acipenser baerii х Acipenser gueldenstaedtii) gonads reared in net cages

, 2019
The study was conducted with female individuals of Russian Sturgeon at the age of five and seven years old and hybrid of Siberian and Russian Sturgeon at the same age in the spring and the same groups in the winter.
Bonev, Stanimir, Nikolova, Lyudmila
core  

Investigation of Sexes and Fertility Potential of Female Russian Sturgeon (Acipenser gueldenstaedtii) and Male American Paddlefish (Polyodon spathula) Hybrids. [PDF]

Life (Basel)
Bogár K, Stanivuk J, Géczi A, Fazekas GL, Kovács B, Lázár B, Molnár M, Ardó L, Ljubobratović U, Kovács G, Péter D, Várkonyi E, Káldy J.   +12 more
europepmc   +1 more source

Prospects for the Artificial Cultivation of a Hybrid of the Russian and Lena Sturgeons in Dagestan

Herald of Dagestan State University, 2022
I.K. Gazimagomedova, F.M. Magomaev
openaire   +1 more source

Siberian Sturgeon (<i>Acipenser baerii</i>, Brandt, 1869) the Relationship Between Genetic Resources and Acclimatization: Ecology, Conservation, and the Nutritional Significance of Meat and Caviar. [PDF]

Life (Basel)
Cîrmaciu Florea CT, Nistor CE, Hoha GV, Păsărin B.   +3 more
europepmc   +1 more source

Fluorescent emission profiles reveal interspecific differences in three Danube River Basin sturgeon species. [PDF]

Sci Rep
Juhasz-Dora T, Ljubobratovic U, Kovacs G, Lindberg SK.   +3 more
europepmc   +1 more source