Results 81 to 90 of about 4,514 (214)

SGLOBE‐Q2D: A Global 2‐D Model of Fundamental and Higher Mode Rayleigh Wave Attenuation From a Large Amplitude Data Set

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.
Abstract We present SGLOBE‐Q2D, a global upper mantle model of frequency‐dependent Rayleigh wave attenuation with uncertainties. We use a data set of ∼ ${\sim} $10 million fundamental and higher mode (up to 4th overtone) Rayleigh wave amplitude measurements with wave periods T∼ ${\sim} $38–275 s.
William Sturgeon, Ana M. G. Ferreira
wiley   +1 more source

Early development and growth of sterlet (Acipenser ruthenus) in the Czech Republic

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2011
Growth rate of sterlet larvae and juveniles during 2008 and 2009 was studied under experimental and farming conditions in the Czech Republic. The embryos hatched when reaching a mean total length (TL) of 9.0 mm.
Juraj Rybnikár   +3 more
doaj   +1 more source

Acclimation conditions and subsequent acute hypoxia challenges do not affect the frequency of erythrocyte nuclear segmentation in triploid brook charr Salvelinus fontinalis (Mitchill 1814)

open access: yesJournal of Fish Biology, Volume 107, Issue 1, Page 292-297, July 2025.
Abstract Routine observations of blood smears have repeatedly shown that triploid fish have a greater proportion of erythrocytes with nuclear segmentation (ENS) than diploids; however, there is as yet no understanding of why this is the case and whether it affects erythrocyte function.
John D. Clark   +4 more
wiley   +1 more source

Omega-3 Fatty Acid, Selenium, and Mercury Content of Aquaculture Products in Hawaii [PDF]

open access: yes, 2012
The purpose of this study was to gather baseline data on the fatty acid profile and selenium and mercury concentration of aquaculture products in ...
Asato, Alfred E.   +3 more
core  

Preliminary assessment of the nutritive value of dietary exuviae from black soldier fly (Hermetia illucens) pupae in Mozambique tilapia

open access: yesJournal of the World Aquaculture Society, Volume 56, Issue 3, June 2025.
Abstract A by‐product of black soldier fly (Hermetia illucens) larvae (BSFL) farming is the chitin‐rich “exuviae” (exoskeleton shell) that is left behind after the prepupae larvae metamorphose into adults. Moreover, exuviae is present in BSFL meal and frass.
Nicholas Romano   +6 more
wiley   +1 more source

The Use of Dietary Additives in Fish Stress Mitigation: Comparative Endocrine and Physiological Responses [PDF]

open access: yes, 2019
In the last years, studies on stress attenuation in fish have progressively grown. This is mainly due to the interest of institutions, producers, aquarists and consumers in improving the welfare of farmed fish.
Abdel-Tawwab   +173 more
core   +2 more sources

Nuclear Multi‐Microsatellite Marker Profiling Provides Clues to Molecular Genetic Diversity in Culture‐Based Caspian Beluga Sturgeon (Huso huso) Brood Stocks: Ecological Mirror for Restoration

open access: yesVeterinary Medicine and Science, Volume 11, Issue 3, May 2025.
We conducted a study involving 436 individuals of both sexes, collected from eight breeder private farms with diverse breeding histories and generational backgrounds. Through the application of eight microsatellites, we amplified a non‐coding core genomic region in the species, followed by capillary electrophoresis (CE) to provide double confirmation ...
Mehdi Moghim   +4 more
wiley   +1 more source

Behavioral characteristics of a chondrostean sturgeon species Acipenser baerii prelarvae in response to different environmental light intensities in a diel photoperiodic cycle

open access: yesJournal of Animal Reproduction and Biotechnology, 2020
Behavioral response to a diel photoperiodicity (500 lx for 16 h, 5 lx for 4 h and < 0.5 lx for 4 h) and phototactic characteristics in dark conditions were examined with Siberian sturgeon Acipenser baerii (Chondrostei, Actinopterygii) prelarvae. Siberian
Eun Jeong Kim   +2 more
doaj   +1 more source

Effects of different three live foods on growth performance and survival rates in beluga (Huso huso) larvae [PDF]

open access: yes, 2012
To determine the best live food and to reevaluate the optimal weaning period for beluga fish (Huso huso) larvae, seven experimental diets: Daphina (DP), Chironomids (CH), Gammarid (G), Daphina + formulated diet (DPFD), Chironomids + formulated diet (CHFD)
Bai, S.C.   +5 more
core  

Disaccharide combinations and the expression of enolase3 and plasma membrane Ca2+ ATPase isoform in sturgeon sperm cryopreservation [PDF]

open access: yes, 2018
ContentsAcipenser sinensis and Acipenser dabryanus are critically endangered species, so germplasm conservation via cryopreservation of sperm is necessary.
Du, H.   +5 more
core   +1 more source

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