Academic literature on the topic 'Fish virome'
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Journal articles on the topic "Fish virome"
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Gadoin, Elsa, Christelle Desnues, Sonia Monteil-Bouchard, Thierry Bouvier, Jean-Christophe Auguet, Emmanuelle Roque d’Orbcastel, and Yvan Bettarel. "Fishing for the Virome of Tropical Tuna." Viruses 13, no. 7 (July 2, 2021): 1291. http://dx.doi.org/10.3390/v13071291.
Full textAbstract:
While planktonic viruses have received much attention in recent decades, knowledge of the virome of marine organisms, especially fish, still remains rudimentary. This is notably the case with tuna, which are among the most consumed fish worldwide and represent considerable economic, social and nutritional value. Yet the composition of the tuna virome and its biological and environmental determinants remain unknown. To begin to address this gap, we investigated the taxonomic diversity of viral communities inhabiting the skin mucus, gut and liver of two major tropical tuna species (skipjack and yellowfin) in individuals fished in the Atlantic and Indian Oceans. While we found significant differences in the virome composition between the organs, this was totally independent of the tuna species or sex. The tuna virome was mainly dominated by eukaryotic viruses in the digestive organs (gut and liver), while bacteriophages were predominant in the mucus. We observed the presence of specific viral families in each organ, some previously identified as fish or human pathogens (e.g., Iridoviridae, Parvoviridae, Alloherpesviridae, Papillomaviridae). Interestingly, we also detected a ‘core virome’ that was shared by all the organs and was mainly composed of Caudovirales, Microviridae and Circoviridae. These results show that tuna host a mosaic of viral niches, whose establishment, role and circulation remain to be elucidated.
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Filipa-Silva, Andreia, Ricardo Parreira, Sandra Martínez-Puchol, Sílvia Bofill-Mas, Maria Teresa Barreto Crespo, and Mónica Nunes. "The Unexplored Virome of Two Atlantic Coast Fish: Contribution of Next-Generation Sequencing to Fish Virology." Foods 9, no. 11 (November 9, 2020): 1634. http://dx.doi.org/10.3390/foods9111634.
Full textAbstract:
Much of the knowledge on viruses is focused on those that can be propagated using cell-cultures or that can cause disease in humans or in economically important animals and plants. However, this only reflects a small portion of the virosphere. Therefore, in this study, we explore by targeted next-generation sequencing, how the virome varies between Atlantic horse mackerels and gilthead seabreams from fisheries and aquaculture from the center and south regions of Portugal. Viral genomes potentially pathogenic to fish and crustaceans, as well as to humans, were identified, namely Astroviridae, Nodaviridae, Hepadnaviridae, Birnaviridae, Caliciviridae, and Picornaviridae families. Also bacteriophages sequences were identified corresponding to the majority of sequences detected, with Myoviridae, Podoviridae, and Siphoviridae, the most widespread families in both fish species. However, these findings can also be due to the presence of bacteria in fish tissues, or even to contamination. Overall, seabreams harbored viruses from a smaller number of families in comparison with mackerels. Therefore, the obtained data show that fish sold for consumption can harbor a high diversity of viruses, many of which are unknown, reflecting the overall uncharacterized virome of fish. While cross-species transmission of bonafide fish viruses to humans is unlikely, the finding of human pathogenic viruses in fish suggest that fish virome can be a potential threat regarding food safety.
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López-Bueno, Alberto, Carla Mavian, Alejandro M. Labella, Dolores Castro, Juan J. Borrego, Antonio Alcami, and Alí Alejo. "Concurrence of Iridovirus, Polyomavirus, and a Unique Member of a New Group of Fish Papillomaviruses in Lymphocystis Disease-Affected Gilthead Sea Bream." Journal of Virology 90, no. 19 (July 20, 2016): 8768–79. http://dx.doi.org/10.1128/jvi.01369-16.
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ABSTRACTLymphocystis disease is a geographically widespread disease affecting more than 150 different species of marine and freshwater fish. The disease, provoked by the iridovirus lymphocystis disease virus (LCDV), is characterized by the appearance of papillomalike lesions on the skin of affected animals that usually self-resolve over time. Development of the disease is usually associated with several environmental factors and, more frequently, with stress conditions provoked by the intensive culture conditions present in fish farms. In gilthead sea bream (Sparus aurata), an economically important cultured fish species in the Mediterranean area, a distinct LCDV has been identified but not yet completely characterized. We have used direct sequencing of the virome of lymphocystis lesions from affectedS. auratafish to obtain the complete genome of a new LCDV-Sa species that is the largest vertebrate iridovirus sequenced to date. Importantly, this approach allowed us to assemble the full-length circular genome sequence of two previously unknown viruses belonging to the papillomaviruses and polyomaviruses, termed Sparus aurata papillomavirus 1 (SaPV1) and Sparus aurata polyomavirus 1 (SaPyV1), respectively. Epidemiological surveys showed that lymphocystis disease was frequently associated with the concurrent appearance of one or both of the new viruses. SaPV1 has unique characteristics, such as an intron within the L1 gene, and as the first member of thePapillomaviridaefamily described in fish, provides evidence for a more ancient origin of this family than previously thought.IMPORTANCELymphocystis disease affects marine and freshwater fish species worldwide. It is characterized by the appearance of papillomalike lesions on the skin that contain heavily enlarged cells (lymphocysts). The causative agent is the lymphocystis disease virus (LCDV), a large icosahedral virus of the familyIridoviridae. In the Mediterranean area, the gilthead sea bream (Sparus aurata), an important farmed fish, is frequently affected. Using next-generation sequencing, we have identified withinS. auratalymphocystis lesions the concurrent presence of an additional LCDV species (LCDV-Sa) as well as two novel viruses. These are members of polyomavirus and papillomavirus families, and here we report them to be frequently associated with the presence of lymphocysts in affected fish. Because papillomaviruses have not been described in fish before, these findings support a more ancient origin of this virus family than previously thought and evolutionary implications are discussed.
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Carlson, Colin J., Tad A. Dallas, Laura W. Alexander, Alexandra L. Phelan, and Anna J. Phillips. "What would it take to describe the global diversity of parasites?" Proceedings of the Royal Society B: Biological Sciences 287, no. 1939 (November 18, 2020): 20201841. http://dx.doi.org/10.1098/rspb.2020.1841.
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How many parasites are there on Earth? Here, we use helminth parasites to highlight how little is known about parasite diversity, and how insufficient our current approach will be to describe the full scope of life on Earth. Using the largest database of host–parasite associations and one of the world’s largest parasite collections, we estimate a global total of roughly 100 000–350 000 species of helminth endoparasites of vertebrates, of which 85–95% are unknown to science. The parasites of amphibians and reptiles remain the most poorly described, but the majority of undescribed species are probably parasites of birds and bony fish. Missing species are disproportionately likely to be smaller parasites of smaller hosts in undersampled countries. At current rates, it would take centuries to comprehensively sample, collect and name vertebrate helminths. While some have suggested that macroecology can work around existing data limitations, we argue that patterns described from a small, biased sample of diversity aren’t necessarily reliable, especially as host–parasite networks are increasingly altered by global change. In the spirit of moonshots like the Human Genome Project and the Global Virome Project, we consider the idea of a Global Parasite Project: a global effort to transform parasitology and inventory parasite diversity at an unprecedented pace.
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Perry, Benjamin J., Mitra Mohamadi Darestani, Motia Gulshan Ara, Amélie Hoste, Jennifer M. Jandt, Ludovic Dutoit, Edward C. Holmes, Travis Ingram, and Jemma L. Geoghegan. "Viromes of Freshwater Fish with Lacustrine and Diadromous Life Histories Differ in Composition." Viruses 14, no. 2 (January 27, 2022): 257. http://dx.doi.org/10.3390/v14020257.
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Viruses that infect fish are understudied, yet they provide important evolutionary context to the viruses that infect terrestrial vertebrates. We surveyed gill tissue meta-transcriptomes collected from two species of native freshwater fish from Aotearoa New Zealand—Retropinna retropinna and Gobiomorphus cotidianus. A total of 64 fish were used for gill tissue meta-transcriptomic sequencing, from populations with contrasting life histories—landlocked (i.e., lacustrine) and diadromous—on the South Island and Chatham Islands. We observed that both viral richness and taxonomic diversity were significantly associated with life history and host species, with lacustrine R. retropinna characterised by higher viral alpha diversity than diadromous R. retropinna. Additionally, we observed transcripts of fish viruses from 12 vertebrate host-associated virus families, and phylogenetically placed eight novel RNA viruses and three novel DNA viruses in the Astroviridae, Paramyxoviridae, Orthomyxoviridae, Rhabdoviridae, Totiviridae, Poxviridae, Alloherpesviridae, and Adintoviridae in their evolutionary contexts. These results represent an important survey of the viruses that infect two widespread native fish species in New Zealand, and provide insight useful for future fish virus surveys.
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Yudi Cahyoko, Agustono, Hiprita Putri Karlina,. "Fermentasi Ampas Kelapa Menggunakan Trichoderma viride, Bacillus subtilis, Dan EM4 Terhadap Kandungan Protein Kasar Dan Serat Kasar Sebagai Bahan Pakan Alternatif Ikan [Fermentation Of Coconut Dregs Using Trichoderma viride, Bacillus subtilis, And EM4 Against Crude Protein And Crude Fiber As An Alternative Feed Ingredients For Fish]." Jurnal Ilmiah Perikanan dan Kelautan 5, no. 1 (January 20, 2019): 77. http://dx.doi.org/10.20473/jipk.v5i1.11429.
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Abstract Feed plays an important role in fish farming. Feed requirements achieve 60-70% of the cost of fish farming operations. Availability of feed with quality and sufficient quantity is aimed in increasing fish production. A very high feed prices due to artificial feed ingredients used are expensive and required in large quantities. Therefore, it is necessary to find alternatives to fish directly or indirectly obtaining appropiate and adequate nutrition needs to grow. The raw material content used for feed is coconut dregs (Cocos nucifera). The availability of the coconut dregs is abundant and potensial for fish feed ingredients. The coconut dregs is also one type or plantation waste which still has potential to be processed into the manufacture of fish feed. The coconut dregs flour can be processed by fermentation to improve quality. This study was aimed to determine the increase in crude protein content and a decrease in crude fiber content of coconut dregs fermented with Trichoderma viride; Bacillus subtilis and EM4. The research method was an experiment with Completely Randomized Design (CRD). The treatments used without the addition of microbes (P0), Bacillus subtilis 6% (P1), Trichoderma viride 6% (P2), and EM4 6% (P3) with 5 repeatitions each. The parameters observed were the content of crude protein and crude fiber after 7 days of fermentation. Data analysis used Analysis of Variance (ANOVA) and to determine the best treatments using Duncan Multiple Distance Test with 5% confidence interval. The results indicated that coconut dregs fermented with Bacillus subtilis (P1), Trichoderma viride (P2), and EM4 (P3) produced the difference of crude protein and fiber. The best treatment on the increase in crude protein content was Bacillus subtilis (P1) of 7.5564%. The best treatment on the decrease in crude fiber content was EM4 (P3) of 22.3967%. However, the results of the flour fermented coconut dregs can not be used as an alternative feed material because the fermented coconut dregs is not qualified for fish feed. This is due to a lack of crude protein and high crude fiber content.
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Dewa Ketut Meles, Mohamad Yusuf, Agustono,. "Kandungan Protein Kasar Dan Serat Kasar Pada Kulit Pisang Raja Yang Difermentasi Dengan Trichoderma viride Dan Bacillus subtilis Sebagai Bahan Baku Pakan Ikan [ Crude Protein And Fiber Content Of Rough Of Fermented On The King Banana Skins By Trichoderma viride And Bacillus subtilis As Raw Fish Feed]." Jurnal Ilmiah Perikanan dan Kelautan 4, no. 1 (January 24, 2019): 53. http://dx.doi.org/10.20473/jipk.v4i1.11585.
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Abstract Utilization of fish waste as an alternative feed ingredient in the effort to increase the availability of raw materials making up rations. Banana skin is one that has the potential of agricultural waste into alternative feed ingredients, but the nutritional value contained in the banana peel is still low so we need to attempt to improve nutritional content, one of which is fermentation method using Trichoderma viride and Bacillus subtilis in order to improve crude protein and lower content of crude fiber on a banana peel. This study aims to determine the influence of Trichoderma viride on crude protein and crude fiber are fermented banana skin, know the effect of Bacillus subtilis on crude protein and crude fiber are fermented banana skin and know the effect of interaction of Trichoderma viride and Bacillus subtilis of crude protein and fiber fermented banana skin rough. This research method is to experiment with Completely Randomized Design (CRD) as a factorial experimental design. The treatments used consisted of two factors, namely the effect of Trichoderma viride (factor A) and Bacillus subtilis (factor B). Factor A consisted of three dose levels: 0%, 3% and 6%, while factor B consists of three levels ie dose of 0%, 4% and 8%. Each treatment combination was replicated 3 times. The results showed that the use of Trichoderma viride and Bacillus subtilis in fermentation processes plantain skin showed significant differences on crude protein and crude fiber on dry matter (p<0.05).
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Allert, Ann L., Michael J. McKee, Robert J. DiStefano, and James F. Fairchild. "Evaluation of chemical control for nonnative crayfish at a warm-water fish production hatchery." Freshwater Crayfish 22, no. 1 (December 31, 2016): 81–93. http://dx.doi.org/10.5869/fc.2016.v22-1.81.
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Abstract Invasive crayfish are known to displace native crayfish species, alter aquatic habitat and community structure and function, and are serious pests for fish hatcheries. White River Crawfish (WRC; Procambarus acutus) were inadvertently introduced to a warm-water fish hatchery in Missouri, USA, possibly in an incoming fish shipment. We evaluated the use of chemical control for crayfish to ensure incoming and outgoing fish shipments from hatcheries do not contain live crayfish. We conducted acute (≤ 24 hr) static toxicity tests to determine potency, dose-response, and selectivity of pesticides to WRC, Virile Crayfish (VC; Orconectes virilis), and Fathead Minnow (FHM; Pimephales promelas). Testing identified a formulation of cypermethrin (Cynoff®) as the most potent of five pesticides evaluated for toxicity to crayfish. A 4-hr exposure to a cypermethrin concentration of 100 μg·L-1 was found to kill 100% of juvenile and adult WRC; however, adult VC were not consistently killed. Concentrations of cypermethrin ≤ 100 μg·L-1 did not cause significant (> 10%) mortality in juvenile FHM. Additional testing is needed to examine selectivity between crayfish and hatchery fish species. Biosecurity protocols at hatcheries that use chemical control have the potential to reliably prevent inadvertent transfers of live crayfish in fish shipments.
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Kusch, R. C., and D. P. Chivers. "The effects of crayfish predation on phenotypic and life-history variation in fathead minnows." Canadian Journal of Zoology 82, no. 6 (June 1, 2004): 917–21. http://dx.doi.org/10.1139/z04-066.
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Ecological theory predicts that the timing of the transition between life-history stages should vary with the costs and benefits associated with each stage. For example, the timing of hatching or metamorphosis may vary with the predation risk in each stage. Predator-induced changes in hatching time are well documented in some taxa but have not been reported in fishes. We provide the first empirical evidence that a species of fish can alter its hatching time in response to predator cues. We showed that fathead minnows, Pimephales promelas Rafinesque, 1820, exposed to chemical cues from virile crayfish, Orconectes virilis (Hagen, 1870), foraging on minnow embryos hatch sooner than those exposed to a blank control. Moreover, in the presence of cues from virile crayfish feeding on minnow embryos, the hatchlings exhibited a change in morphology because they had significantly shorter total lengths. There was a significant positive correlation between hatchling size and length of the developmental period, except in the high predation threat treatment. By hatching earlier, the fathead minnows escaped predation from virile crayfish that were actively foraging on fathead minnow eggs. Hatching at a smaller size, however, may make the fry more vulnerable to other predators.
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Castro-Sanguino, Carolina, and Juan A. Sánchez. "Dispersal of Symbiodinium by the stoplight parrotfish Sparisoma viride." Biology Letters 8, no. 2 (September 28, 2011): 282–86. http://dx.doi.org/10.1098/rsbl.2011.0836.
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Environmental reservoirs of zooxanthellae are essential for coral larvae settlement; understanding where they occur and how they are maintained is important for coral reef ecology. This study investigated the dispersal of Symbiodinium spp. by the stoplight parrotfish Sparisoma viride , which had high mean densities of viable and cultivable Symbiodinium (3207–8900 cells ml −1 ) in faeces. Clades A, B and G were detected using amplified chloroplast ribosomal sequences (cp23S-HVR), and corresponded with diet preferences of fish and the environmental Symbiodinium diversity of the region. Cells are constantly dispersed in the water column and deposited in the substrate at a local level (86 ± 17.8 m 2 ), demonstrating that parrotfishes are vectors for short-distance dispersal of zooxanthellae. Such dispersal could constitute a key role in the maintenance of environmental Symbiodinium reservoirs.
Dissertations / Theses on the topic "Fish virome"
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Cardwell, James Robert. "Behavioural endocrinology of the stoplight parrotfish, Sparisoma viride, Scaridae, a protogynous coral reef fish." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/29067.
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The behavioural endocrinology of a protogynous coral reef fish, the stoplight parrotfish (Sparisoma viride, Scaridae) was investigated at Glover's Reef, Belize. Detailed behavioural observations in the field were combined with radioimmunoassay of steroids circulating in plasma (11-ketotestosterone, testosterone and 17[sub β]-estradiol) and histological examination of gonads to obtain precise correlations of behaviour, colouration and gonadal condition with endocrine status.
The size, sex and colour phase distribution, together with histological analysis suggests that some individuals of this species undergo sex change as mature adult females, while others change sex as immature individuals, becoming functional males without passing through a female phase. Furthermore, some individuals change sex and colour phase simultaneously while others retain female-like 'initial phase' (Iph) colouration and function as Iph males before acquiring 'terminal phase' (Tph) colouration.
Large Tph males defend permanent, all-purpose territories on which they pair-spawn daily with the females of a harem group. Smaller Tph males (bachelors) neither defend territories, nor spawn, but feed in groups and inhabit overlapping home-ranges.
Females also inhabit overlapping home-ranges within the confines of a Tph male's territory. They spawn with the same male every day at high tide.
Iph males are rare in this population. They spawn by releasing milt into the gamete cloud left after a pair-spawning event. Iph males also pair-spawn with females in the absence of Tph males.
Sex change is correlated with the onset of 11-ketotestosterone production, and a dramatic decrease in plasma levels of estradiol. This is the first report to show that a naturally-occurring androgen increases in plasma concentration during sex change in a protogynous marine species. Administration of 11-ketotestosterone promotes sex and colour change in adult females. Thus, 11-ketotestosterone appears to play a key role in sex and colour phase change in this species. Males that retain Iph colouration after sex change have lower levels of 11-ketotestosterone (undetectable) and higher levels of estradiol than Tph males or males with transitional colouration. This suggests that estradiol may suppress colour phase change in Iph males.
Bachelor Tph males have lower levels of testosterone and 11-ketotestosterone than territorial males. Bachelors rapidly take over experimentally vacated territories, confinning the hypothesis that they are normally excluded from suitable habitat by territorial males. One week after territory acquisition, 11-ketotestosterone and testosterone increase to levels over and above those in undisturbed territorial males, but by three weeks, androgen levels are not significantly different from those in undisturbed territorial males. Simulated territorial intrusion promoted increased androgen production in Tph males, while access to territories without neighbours did not. Thus, the pattern of androgen production seen after territory acquisition is due to interactions with neighbouring males during territory boundary re-establishment. Increased levels of androgen during territorial challenges may promote increased aggressiveness and territorial vigilance, thereby increasing the chances of successfully defending against the challenge.
These findings are discussed in light of recent theory in behavioural endocrinology.Science, Faculty of
Zoology, Department of
Graduate
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Demariaux-Betermier, Mireille. "Transposition du bacteriophage mu : domaines fonctionnels de la transposase virale et role de la proteine fis d'e. coli." Toulouse 3, 1989. http://www.theses.fr/1989TOU30028.
Full textBooks on the topic "Fish virome"
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Adl, Yasir Muhammad. al-Fiqh al-Ghaib: Fiqh al-ikhtilaf, fiqh al-muwazanat, fiqh al-amr bi-al-maruf wa-al-nahy an al-munkar. s.n.], 1993.
Find full textBook chapters on the topic "Fish virome"
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De Grandis, Mario, and Filippo Costantini. "Negotiating with the tradition: representations of fish in Alai’s fictional writing." In Studi e saggi, 111–25. Florence: Firenze University Press, 2021. http://dx.doi.org/10.36253/978-88-5518-506-6.11.
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Tibet has long been orientalized in fictional representations. Taking as a case study two texts by Alai, this paper investigates how a traditional Tibetan cultural trait–the fish taboo–is mobilized to complicate the representation of Tibetan culture. By describing the fish taboo Alai points at Tibet's cultural specificity, which in virtue of its exoticism can catch the attention of non-Tibetan readers. At the same time, however, Alai equips his characters with psychological depth, showing their contrasting inner emotions of attraction and repulsion toward fish. In this sense, Alai subtly points at the fallacies of flat representations of Tibet, thus dismantling them from within.
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Anthony, R., M. Gjerris, and H. Röcklinsberg. "Fish welfare, environment and food security: a pragmatist virtue ethics approach." In The ethics of consumption, 257–62. Wageningen: Wageningen Academic Publishers, 2013. http://dx.doi.org/10.3920/978-90-8686-784-4_41.
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Joseph, Nithila A., Chi-Fan Chen, Jiun-Hong Chen, and Liuh-Yow Chen. "Monitoring Telomere Maintenance During Regeneration of Annelids." In Methods in Molecular Biology, 467–78. New York, NY: Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2172-1_24.
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AbstractTelomere shortening is a hallmark of aging and eventually constrains the proliferative capacity of cells. The protocols discussed here are used for monitoring telomeres comprehensively in Aeolosoma viride, a model system for regeneration studies. We present methods for analyzing the activity of telomerase enzyme in regenerating tissue by telomeric repeat amplification protocol (TRAP) assay, for comparing telomere length between existing tissue and newly regenerated tissue by telomere restriction fragment (TRF) assay, as well as for visualizing telomeres by fluorescence in situ hybridization (FISH).
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Zhang, Kaiqiang. "Challenges of Arbitrators in Inter-State Cases: A Different Cattle of Fish?" In Cofola International 2021, 235–74. Brno: Masaryk University Press, 2021. http://dx.doi.org/10.5817/cz.muni.p210-8639-2021-9.
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Compared to those in international commercial and investment arbitration, arbitrator-challenge practi-ces in inter-state cases are abnormally rare. The reasons behind the asymmetric practices include the ideology towards the role of arbitrators (authority vs. expertise), the effectiveness of enforcement (whether the award can be executed in domestic courts or whether there exist preconditions), and the unique structure and function of the specific tribunals. By virtue of illustrating the rules and practi-ces of the ad hoc tribunal established under Annex VII of the United States Convention on the Law of the Sea, the Iran-United States Claims Tribunal, and the International Court of Justice, the current standard, “justifiable doubts to the impartiality and independence of arbitrators”, is not interpreted uniformly and somehow unreasonable. To overcome the phenomenon of fragmentation and other problems, the arbitrator-challenge rules in inter-state disputes should not be treated differently and should be harmonized with rules and case laws developed in international commercial and investment arbitration.
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Kültz, Dietmar. "Infectious diseases." In A Primer of Ecological Aquaculture, 252–76. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198850229.003.0018.
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Abstract Infectious diseases are responsible for the loss of almost half of all aquaculture production. Their incidence can be minimized by strict biosecurity in closed recirculating aquaculture systems (RAS). Infections are caused by pathogens transmitted by physical contact or biological vectors, either horizontally (within the same generation) or vertically (from parents to offspring). Many infectious pathogens are present in the environment, but healthy aquatic animals suppress them by employing pathogen defence mechanisms such as physical barriers and immunity. Immunity is compromised by stresses encountered in aquaculture. Adaptive immunity is based on cellular memory and limited to vertebrates (aquaculture fishes) while innate immunity and physical defences are also utilized by invertebrates. Four types of pathogens cause significant infectious diseases of aquaculture organisms: viruses, bacteria, fungi, and parasites. Diagnosis of viroses, bacterioses, mycoses, and parasitoses uses PCR, cytopathic effects in host cell lines, growth on selective media, microscopy in combination with specific stains, and visual inspection of hosts (e.g. to observe ectopic macroparasites). Treatment includes antibiotics, medicated feeds, chemotherapeutic, saline, or oxidative baths, and co-culture with cleaner fish. Prophylaxis is the best and sometimes the only (e.g. viroses) approach for minimizing disease problems in aquaculture. It is based on implementing biosecurity, sanitary management, quarantine, water sterilization, disinfection, stress reduction, regular monitoring, domestication of disease-resistant strains of aquaculture organisms, and utilization of specific pathogen-free (SPF) stocks of aquaculture organisms.
Conference papers on the topic "Fish virome"
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A.A., Matrosov, Nizhnik D.A., and Soloviev A.N. "DIFFUSION OF A CRYOPROTECTANT THROUGH THE MEMBRANE OF REPRODUCTIVE CELLS." In OF THE ANNIVERSARY Х INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE «INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION» («ITSE 2022» CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/itse.2022.124-126.
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In order to develop a new technology for low-temperature preservation of fish reproductive cells, and sturgeon fish in particular, mathematical modeling of acoustic impact on biological objects has been performed. A mathematical model of cryoprotectant diffusion through the reproductive cell membrane is constructed. It is assumed that a special piezoactuator creates an acoustic field in the cryoprotectant. By virtue of this, the corresponding velocity field of the environment is assumed to be set. The resulting boundary value problem is solved numerically using the finite element method.