Results 31 to 40 of about 22,804 (240)

Mechanical shock during egg de-adhesion and post-ovulatory ageing contribute to spontaneous autopolyploidy in white sturgeon culture (Acipenser transmontanus) [PDF]

open access: yes, 2020
Spontaneous autopolyploidy, a 1.5x increase in genome size resulting from second polar body retention after fertilization, has been documented in cultured sturgeons, with the proportion of spontaneous autopolyploid progeny ranging widely among maternal ...
Conte, FS   +6 more
core  

\u3ci\u3eHexagenia Bilineata\u3c/i\u3e (Ephemeroptera: Ephemeridae) Persists at Low Levels of Abundance in the Lower Fox River, Wisconsin [PDF]

open access: yes, 2018
After burrowing mayflies (Hexagenia bilineata) were first noted in the vicinity of the DePere Dam on the Fox River in 1991, adults have been observed in small numbers each summer since then.
Cochran, Phillip A, Kinziger, Andrew P
core   +2 more sources

Acipenser baerii Brandt 1869

open access: yes, 2020
Acipenser baerii Brandt, 1869 – Non-native (Fig. 14) Acipenser baerii Brandt [J. F.] 1869: 115; Type locality: Ob and Lena river systems, Siberia, Russia. Syntypes: whereabouts unknown. Acipenser Nikolskii stenorrhynchus [A. M.] 1896: 400; Type locality: Large rivers of Siberia flowing to the Arctic.
Jouladeh-Roudbar, Arash   +2 more
openaire   +2 more sources

Age and heat stress as determinants of telomere length in a long-lived fish, the Siberian Sturgeon [PDF]

open access: yes, 2016
Telomeres shorten at each cell division due to the end-replication problem but also in response to oxidative stress. Consequently, telomeres shorten with age in many endotherms, and this shortening is accelerated under stressful environmental conditions.
Angelier, Frédéric   +3 more
core   +3 more sources

Cryopreservation of common carp sperm [PDF]

open access: yes, 2003
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos   +2 more
core   +1 more source

Ultrasonographic Findings of Ovary and Testis in Adult Acipenser Persicus During Artificial Propagation (Stage V of Maturity) [PDF]

open access: yesIranian Journal of Veterinary Surgery, 2013
Objective- Acipenser persicus is one of the most important caviar producing fishes in the Caspian Sea and one of the endangered species of the sturgeon fishes. For breeding of sturgeons, large numbers of animals have to be captured and examined to obtain
Alireza Vajhi   +4 more
doaj  

Species Identification of Caviar Based on Multiple DNA Barcoding

open access: yesMolecules, 2023
This study aimed to explore the applicability of DNA barcoding for assessing the authenticity of caviar on the Chinese market. A set of universal COI primers and two sets of designed primers based on COI and D-loop genes were used to identify maternal ...
Qingqing Hu   +5 more
doaj   +1 more source

The complete mitochondrial genome of the hybrid sturgeon of Huso dauricus (♀) × Acipenser schrenckii (♂)

open access: yesMitochondrial DNA. Part B. Resources, 2017
The complete mitochondrial genome sequence of the hybrid of Huso dauricus (♀) × Acipenser schrenckii (♂) is described in this study. The 16,693bp long circular molecule consisted of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control ...
Xueqing Liu   +5 more
doaj   +1 more source

Influence of repeated intravital extraction of eggs from sturgeon hybrids on their oogenesis under conditions of recirculation aquaculture system

open access: yesИзвестия ТИНРО, 2015
Dynamics of cytomorphological characteristics of oocytes in ovaries is considered for two sturgeon hybrids: besters of the breed Burtlevskaya Huso huso (Linnaeus) x Acipenser ruthenus (Linnaeus) and the breed Aksayskaya Acipenser ruthenus x ( Huso huso x
Olga P. Filippova   +2 more
doaj   +1 more source

Current occurrence of the Atlantic Sturgeon Acipenser oxyrinchus in Northern Spain: a new prospect for Sturgeon conservation in Western Europe [PDF]

open access: yes, 2015
Acipenser oxyrinchus is considered extirpated in Europe, but numerous breeding populations still exist on the Atlantic coast of North America. An adult female A.
Almodóvar Pérez, Ana María   +3 more
core   +7 more sources

Home - About - Disclaimer - Privacy