Results 51 to 60 of about 4,514 (214)

High‐throughput multispecies quantitative polymerase chain reaction assays to study the effects of acute thermal stress in three species of Acipenser sturgeon

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fishes experience thermal stress in their natural environment that can be caused by natural or anthropogenic factors and can directly affect their physiology. In this study, we developed a multispecies OpenArray™ qPCR (quantitative polymerase chain reaction) ‘chip’ to measure the effects of acute thermal stress on the mRNA response of ...
Hossein Haghighi   +6 more
wiley   +1 more source

Mechanism of Ammonia‐Induced Brain Damage in Chinese Striped‐Necked Turtle (Mauremys sinensis)

open access: yesIntegrative Zoology, Volume 21, Issue 2, Page 421-434, March 2026.
High levels of ammonia disrupt the integrity of the brain barrier in Mauremys sinensis, leading to tissue edema. This, in turn, triggers a series of cascade reactions, including disturbances in neurotransmitter levels, particularly glutamate, which might further exacerbate the neurotoxic effects.
Yunjuan Xiao   +6 more
wiley   +1 more source

Endoscopy as a new method for sex determination in Siberian sturgeon (Acipenser baerii) [PDF]

open access: yesبوم‌شناسی آبزیان, 2015
Determination of sex and gonadal development of Siberian sturgeon (Acipenser baerii) by using endoscopy as a new and less aggressive method for sturgeon conservation is the aim of this study.
Najmeh Abbasi   +3 more
doaj  

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  

Warm and cool temperatures decrease early‐life telomere length in wild pied flycatchers

open access: yesJournal of Avian Biology, Volume 2026, Issue 1, January 2026.
Climate change represents a major challenge for avian species. It is characterized by an increase in average ambient temperatures, but also by an increase of extreme weather events, such as heatwaves and cold snaps. These abrupt temperature changes can modify the immediate and long‐term survival prospects of nestling birds, when their thermoregulatory ...
Clémence Furic   +7 more
wiley   +1 more source

Shyer fish are superior swimmers in Siberian sturgeon (Acipenser baerii)

open access: yesFrontiers in Marine Science, 2022
Differences in individual personality are common amongst animals, which can play an ecological and evolutionary role given links to fitness. Personality affects animal life processes and outputs (e.g., behavior, life history, growth, survival ...
Lingli Xiang   +13 more
doaj   +1 more source

Hypoxia and Sturgeons: report to the Chesapeake Bay Program Dissolved Oxygen Criteria Team [PDF]

open access: yes, 2001
In this essay, three lines of evidence are developed that sturgeons in the Chesapeake Bay and elsewhere are unusually sensitive to hypoxic conditions: 1.
Niklitschek, Edwin J., Secor, David H.
core  

Integrated Use of Oxidative Stress and Histological Biomarkers of T. tinca as Indicators of 17‐Alpha‐Ethynylestradiol Exposure

open access: yesEnvironmental Toxicology, Volume 41, Issue 1, Page 49-67, January 2026.
ABSTRACT The potential adverse effects of 17‐alpha‐ethynylestradiol (50, 100, and 500 μg EE2/kg b.w., for 30 days) on tench ( Tinca tinca ) were evaluated by integrating biomarkers including physiological (hepato‐somatic index, spleen‐somatic index, and hematocrit), oxidative stress (catalase, glutathione peroxidase, and glutathione reductase ...
Ana L. Oropesa   +3 more
wiley   +1 more source

MORPHOPHYSIOLOGICAL PARAMETERS OF SOME STURGEON SPECIES (ACIPENSERIDAE, ACIPENSERIFORMES) OF DIFFERENT AGE GROUPS REARED IN AQUACULTURE

open access: yesRibogospodarsʹka Nauka Ukraïni, 2015
Purpose. To study some morphometric parameters, protein and lysozyme content in organs and serum in several sturgeon species reared in aquiculture at the ages of 3, 8 and 18 months, and to investigate the specific and age distribution of lysozyme in fish
L. Kurovskaya, V. Lysenko, S. Neborachek
doaj   +1 more source

The effects of different levels of Aloe vera extract on some of the hematological and non-specific immune parameters in Siberian sturgeon (Acipenser baerii) [PDF]

open access: yes, 2017
In this study, Aloe vera extract was used to evaluate its effects on hematological and immune parameters of Siberian sturgeon (Acipenser baerii).
Bazari Moghaddam, S.   +4 more
core  

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