Results 11 to 20 of about 15,579 (260)

The “Hatchery” of the Sun-fish [PDF]

open access: yesNature, 1889
THE fact that the “sun-fish” of the American lakes and streams prepares a place for the deposit of its eggs and guards them till hatched is widely known. Certainly is has long been known and is recorded in all recent American works on fishes. The first detailed statement of its nidification I know of was published by Dr. John D. Godman, in his “Rambles
openaire   +4 more sources

Accelerated germination of aged recalcitrant seeds by K+-rich bulk oxygen nanobubbles

open access: yesScientific Reports, 2023
Bulk nanobubbles, measuring less than 200 nm in water, have shown their salient properties in promoting growth in various species of plants and orthodox seeds, and as potential drug-delivery carriers in medicine.
Mijung Kim   +5 more
doaj   +1 more source

Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus)

open access: yesFrontiers in Marine Science, 2022
Stock enhancement based on hatchery-reared fish has become one of the most common forms of management practices in marine fisheries resource restoration.
Haoyu Guo   +8 more
doaj   +1 more source

Low-impact rearing of a commercially valuable shellfish: sea-based container culture of European lobster Homarus gammarus in the United Kingdom

open access: yesAquaculture Environment Interactions, 2023
There is increasing interest in the aquaculture of high-value shellfish species such as European lobster Homarus gammarus. Recent years have seen the development of extractive rearing equipment requiring no additional feed input, including novel sea ...
LJ Clarke   +12 more
doaj   +1 more source

Role of Hydrogen in Metal Oxidation—Implication to Irradiation Enhanced Corrosion of Ni-Based Alloys and Stainless Steels in High Temperature Water

open access: yesCorrosion and Materials Degradation, 2022
Hydrogen plays various roles in metals or at metal–environment interfaces. Well known effects on metals are hydrogen embrittlement, hydrogen enhanced local plasticity, hydrogen enhanced strain-induced vacancy, hydrogen accelerated oxidation, hydrogen ...
Zihao Wang, Tetsuo Shoji
doaj   +1 more source

Multiple decades of stocking has resulted in limited hatchery introgression in wild brook trout (Salvelinus fontinalis) populations of Nova Scotia

open access: yesEvolutionary Applications, 2020
Many populations of freshwater fishes are threatened with losses, and increasingly, the release of hatchery individuals is one strategy being implemented to support wild populations. However, stocking of hatchery individuals may pose long‐term threats to
Sarah J. Lehnert   +6 more
doaj   +1 more source

Perceptions of the Impact of Climate Change on Performance of Fish Hatcheries in Bangladesh: An Empirical Study

open access: yesFishes, 2022
The impacts of climate change (CC) on all spheres of human life are evident worldwide. Fish is the premier protein source, and its production in Bangladesh is mainly dependent on hatchery-based seed production. However, hatchery productivity is disrupted
Mohammad Abu Baker Siddique   +7 more
doaj   +1 more source

Experimental and numerical evaluation of temperature variation by frictional heating at the interface between snow and ski

open access: yesJournal of Biomechanical Science and Engineering, 2020
To evaluate the frictional heating effect during ski gliding by temperature measurement, a temperature measurement system was developed and evaluated numerically and experimentally.
Junnosuke OKAJIMA   +5 more
doaj   +1 more source

Engineering of Eu dopant segregation in colquiriite-type fluoride single crystal scintillators

open access: yesAIP Advances, 2017
Colquiriite-type Eu-doped LiCaAlF6 and LiSrAlF6 (Eu:LiCAF and Eu:LiSAF) scintillator single crystals were grown using Al metal as a starting material to improve the Eu dopant segregation.
Yuui Yokota   +5 more
doaj   +1 more source

Eggshell and Feed Microbiota Do Not Represent Major Sources of Gut Anaerobes for Chickens in Commercial Production

open access: yesMicroorganisms, 2021
In this study, we addressed the origin of chicken gut microbiota in commercial production by a comparison of eggshell and feed microbiota with caecal microbiota of 7-day-old chickens, using microbiota analysis by 16S rRNA sequencing.
Jiri Volf   +12 more
doaj   +1 more source

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