ULTIMO AGGIORNAMENTO BANCA DATI: 13/09/2024 13:00:57
The current state of many freshwater fish stocks worldwide is largely unknown but suspected to be vulnerable to exploitation from recreational fisheries and habitat degradation. Both these factors, combined with complex ecological dynamics and the diffuse nature of inland fisheries could lead to an ...
Eleven sequential size-based hydroacoustic surveys conducted with a 200 kHz split-beam transducer during the summers of 2011 and 2012 were used to quantify seasonal declines in fish abundance in a boreal reservoir in Manitoba, Canada. Fish densities were sufficiently low to enable single target resolution ...
Background The proteolytic enzymes involved in normal protein turnover in fish muscle are also responsible for post-mortem softening of the flesh and are therefore potential determinants of product quality. The main enzyme systems involved are calpains, cathepsins, and the ubiquitin-proteasome (UbP). ...
Glutathione Transferases (GSTs) are phase II detoxification enzymes known to be involved in the molecular response against microcystins (MCs) induced toxicity. However, the individual role of the several GST isoforms in the MC detoxification process is still unknown. In this study, the time-dependent ...
Thirteen new and eighteen known natural products were isolated from a bloom material of an assembly of various Microcystis spp. collected in November, 2008, from a commercial fishpond near Kibbutz Kfar Blum, the Jordan Valley, Israel. The new natural products included the prenylated aeruginosin KB676 ...
Background The European perch, Perca fluviatilis L. is a common paratenic host of dioctophymatid nematodes belonging to the genus Eustrongylides. In this host, once infected oligochaetes, which serve as the first intermediate host, are ingested, Eustrongylides migrates through the intestine and is ...
Global climate change threatens coral growth and reef ecosystem health via ocean warming and ocean acidification (OA). Whereas the negative impacts of these stressors are increasingly well-documented, studies identifying pathways to resilience are still poorly understood. Heterotrophy has been shown ...
Algae are at the base of the aquatic food chain, producing the food resources that fish are adapted to consume. Previous studies have proven that the inclusion of small amounts (<10% of the diet) of algae in fish feed (aquafeed) resulted in positive effects in growth performance and feed utilisation ...
Short-time tracking (one to eight days) of the Japanese eel (Anguilla japonica) using ultrasonic transmitter was performed in the tropical-subtropical area adjacent to the spawning area and temperate area off the Japanese Archipelago. Of 16 eels (11 wild and five farmed) used, 10 wild eels displayed ...
Mitochondrial oxidative phosphorylation provides over 90% of the energy produced by aerobic organisms, therefore the regulation of mitochondrial activity is a major issue for coping with the changing environment and energy needs. In fish, there is a large body of evidence of adaptive changes in enzymatic ...
Scorpions are among the oldest terrestrial arthropods and they have passed through small morphological changes during their evolutionary history on land. They are efficient predators capable of capturing and consuming large preys and due to envenomation these animals can become a human health challenge. ...
Objective 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF) is a metabolite produced endogenously from dietary sources of furan fatty acids. The richest source of furan fatty acids in human diet is fish. CMPF was recently shown to be elevated in fasting plasma in individuals with gestational ...
An apparatus 20 for microwave vacuum-drying organic materials such as foods and bioactives has a plurality of microwave generators 50 actuated so as to cause interference between their respective microwave streams and evenly distribute the microwave energy across the vacuum chamber 34. The microwave-transparent ...
The invention relates to an energy system, in particular an air-conditioning system for air-conditioning rooms, comprising an energy source for heat pump systems, in which energy and/or heat is stored in a latent energy or heat store, comprising an ice slurry producing apparatus (100) for producing ...
La valutazione degli impatti ecologici ed economici/sociali dell'introduzione di specie non indigene (NSI) è una delle principali aree di interesse della scienza della bioinvasione negli ambienti terrestri e acquatici ed è considerata essenziale per la gestione. Recentemente è stato proposto un sistema ...
Disclosed is a system and method for monitoring a physical change of a marine structure which includes a complex optical measuring instrument for detecting a behavior and structural change of the marine structure by using at least one optical sensor by means of optical fiber Bragg grating. A physical ...
A spinning reel spool coupling structure has a pin insertion portion, an anti-rotation pin, a retainer, and an anti-rotation groove. The pin insertion portion has a through hole passing through the spool shaft. The anti-rotation pin includes a first anti-rotation portion, a fitting portion, and a second ...
A device for irradiating media with UV light has a housing which contains at least one tubular body composed of UV-permeable material and through which medium flows, and at least one UV light source disposed at a distance from the tubular body and approximately parallel thereto, and to which a reflector ...
A submarine in-situ net cleaner includes a skid chassis (1) adapted for smooth and snare free sliding across the surface of the net (2), a buoyancy device (3) associated with the chassis to provide the cleaner with buoyancy, a driving device (4) adapted to cooperate with the net (2) and manoeuvre the ...
A filtering device, in particular for fish basins, having a housing (10) encompassing a filter chamber (20) and a filter drum (30), which is rotatably disposed in the filter chamber (20) and is loadable with water to be purified, about which a filter belt (40) is guided along part of its circumference ...