Base de dados : MEDLINE
Pesquisa : B01.050.150.900.493.595 [Categoria DeCS]
Referências encontradas : 303 [refinar]
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  1 / 303 MEDLINE  
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[PMID]:29211418
[Au] Autor:Anikieva LV; Ieshko EP; Ilmast NV
[Ti] Título:[NUMBER DISTRIBUTION AND POPULATION STRUCTURE OF PROTEOCEPHALUS LONGICOLLIS (ZEDER, 1800) (CESTODA: PROTEOCEPHALIDEA), A PARASITE OF SMELT AND COREGONIDS].
[So] Source:Parazitologiia;50(4):291-302, 2016 Jul-Aug.
[Is] ISSN:0031-1847
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The spatial structure and seasonal aspects in the number distribution of the cestode Proteocephalus longicollis population, maintained by trophic connections of specialized plankton-feeders (the vendace Coregonus albula L. and the smelt Osmerus eperlanus L.) in the Lake Onego were studied. Differences in the distribution of number of cestode population in host population, size-age structure, and pre-reproductive/reproductive stages ratio of the studied parasites were revealed. It was demonstrated that the spatial structure of P. longicollis was shaped by the specific characteristics of vendace and smelt populations in the Lake Onego. These species possess partially overlapping ecological niches and differences in the use of food resources, significantly determining the infection dynamics of the examined fish species.
[Mh] Termos MeSH primário: Cestoides/fisiologia
Infecções por Cestoides/parasitologia
Doenças dos Peixes/parasitologia
Lagos/parasitologia
Osmeriformes/parasitologia
[Mh] Termos MeSH secundário: Animais
Cestoides/classificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171221
[Lr] Data última revisão:
171221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171207
[St] Status:MEDLINE


  2 / 303 MEDLINE  
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[PMID]:28690304
[Au] Autor:Minatani T; Sakamoto Y; Nagai H; Goto K
[Ad] Endereço:Gifu Prefectural Research Institute for Health and Environmental Sciences.
[Ti] Título:Determination of Residues of Phenicol Drugs in Ayu (Plecoglossus altivelis) by LC-MS/MS.
[So] Source:Shokuhin Eiseigaku Zasshi;58(3):143-148, 2017.
[Is] ISSN:1882-1006
[Cp] País de publicação:Japan
[La] Idioma:jpn
[Ab] Resumo:An analytical method for the determination of residues of 3 phenicol drugs (chloramphenicol, thiamphenicol and florfenicol) in Ayu (Plecoglossus altivelis) by LC-MS/MS was developed. We used the whole body of Ayu, including the bones and internal organs, in addition to muscle. Phenicols were extracted with 90% acetonitrile and an aliquot of the crude extract was cleaned up on a Florisil column (2 g), followed by defatting with n-hexane. The acetonitrile extract was evaporated and the solvent was replaced with phosphate buffer, then the extract was purified on a hydroxylated styrene-divinylbenzene copolymer column (200 mg). Finally, sample solution was passed through a deproteination cartridge filter with a lipid removal function. Chloramphenicol was quantitated by means of a calibration curve corrected with salogate standard (chloramphenicol-d ) and thiamphenicol and florfenicol were quantitated based on absolute calibration curves. This method was validated in accordance with the notification of the Ministry of Health, Labour and Welfare of Japan. As a result of the validation study, the trueness, repeatability and within-laboratory reproducibility were 85-103, 5-13 and 8-13%, respectively. This method is useful for inspecting residues of 3 phenicol drugs in whole body of Ayu efficiently. Moreover, when chloramphenicol and thiamphenicol are detected by this method, the quantitated value is applicable to decide the compliance of the sample with the specifications and standards of the Food Sanitation Law.
[Mh] Termos MeSH primário: Antibacterianos/análise
Antibacterianos/isolamento & purificação
Cloranfenicol/análise
Cloranfenicol/isolamento & purificação
Cromatografia Líquida/métodos
Resíduos de Drogas/análise
Resíduos de Drogas/isolamento & purificação
Análise de Alimentos/métodos
Osmeriformes/metabolismo
Espectrometria de Massas em Tandem/métodos
Tianfenicol/análogos & derivados
Tianfenicol/análise
Tianfenicol/isolamento & purificação
[Mh] Termos MeSH secundário: Acetonitrilos
Animais
Legislação sobre Alimentos/normas
Extração Líquido-Líquido/métodos
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE; VALIDATION STUDIES
[Nm] Nome de substância:
0 (Acetonitriles); 0 (Anti-Bacterial Agents); 66974FR9Q1 (Chloramphenicol); 9J97307Y1H (florfenicol); FLQ7571NPM (Thiamphenicol); Z072SB282N (acetonitrile)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171016
[Lr] Data última revisão:
171016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170711
[St] Status:MEDLINE
[do] DOI:10.3358/shokueishi.58.143


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[PMID]:28541331
[Au] Autor:Rowe S; Rose GA
[Ad] Endereço:Memorial University of Newfoundland, St. John's, Canada.
[Ti] Título:Cod stocks: Don't derail cod's comeback in Canada.
[So] Source:Nature;545(7655):412, 2017 05 24.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Conservação dos Recursos Naturais/legislação & jurisprudência
Pesqueiros/legislação & jurisprudência
Gadus morhua/fisiologia
[Mh] Termos MeSH secundário: Animais
Canadá
Conservação dos Recursos Naturais/tendências
Cadeia Alimentar
Osmeriformes/fisiologia
Dinâmica Populacional
[Pt] Tipo de publicação:LETTER
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171004
[Lr] Data última revisão:
171004
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170526
[St] Status:MEDLINE
[do] DOI:10.1038/545412b


  4 / 303 MEDLINE  
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[PMID]:28500070
[Au] Autor:Lu XJ; Chen Q; Rong YJ; Chen F; Chen J
[Ad] Endereço:Laboratory of Biochemistry and Molecular Biology, Ningbo University, Ningbo 315211, People's Republic of China.
[Ti] Título:CXCR3.1 and CXCR3.2 Differentially Contribute to Macrophage Polarization in Teleost Fish.
[So] Source:J Immunol;198(12):4692-4706, 2017 Jun 15.
[Is] ISSN:1550-6606
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The study of multiple copies of chemokine receptor genes in various teleosts has long appealed to investigators seeking to understand the evolution of the immune system. The CXCR CXCR3 gene has two isoforms, CXCR3.1 and CXCR3.2, which are both expressed in macrophages. The distinct roles of teleost CXCR3s have not been identified previously. In this article, we found that CXCR3.1 and CXCR3.2 differentially contributed to macrophage polarization in the teleosts: ayu ( ), grass carp ( ), and spotted green pufferfish ( ). In ayu macrophages, the CXCR3.1 (PaCXCR3.1) gene was constitutively expressed, whereas the CXCR3.2 (PaCXCR3.2) gene was induced postinfection with Upon infection, PaCXCR3.1 and PaCXCR3.2 macrophages showed an M1 and an M2 phenotype, respectively. CXCL9-11-like proteins mediated M1 and M2 polarization by interacting with the PaCXCR3.1 and PaCXCR3.2 proteins on macrophages, respectively. The transcription factors STAT1 and STAT3 were activated in PaCXCR3.1 and PaCXCR3.2 macrophages, respectively. Furthermore, the prognosis of septic ayu adoptively transferred with PaCXCR3.2 macrophages was improved. Our data reveal a previously unknown mechanism for macrophage polarization, suggesting that redundant genes may regulate crucial functions in the teleost immune system.
[Mh] Termos MeSH primário: Carpas/imunologia
Proteínas de Peixes/genética
Macrófagos/fisiologia
Osmeriformes/imunologia
Receptores CXCR3/genética
Tetraodontiformes/imunologia
[Mh] Termos MeSH secundário: Animais
Carpas/genética
Carpas/metabolismo
Diferenciação Celular
Clonagem Molecular
Proteínas de Peixes/metabolismo
Peixes/classificação
Peixes/imunologia
Regulação da Expressão Gênica
Macrófagos/imunologia
Monócitos/imunologia
Osmeriformes/genética
Osmeriformes/metabolismo
Fagocitose
Filogenia
Isoformas de Proteínas/genética
Isoformas de Proteínas/metabolismo
Receptores CXCR3/metabolismo
Fator de Transcrição STAT1/genética
Fator de Transcrição STAT1/metabolismo
Fator de Transcrição STAT3/genética
Fator de Transcrição STAT3/metabolismo
Tetraodontiformes/genética
Tetraodontiformes/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fish Proteins); 0 (Protein Isoforms); 0 (Receptors, CXCR3); 0 (STAT1 Transcription Factor); 0 (STAT3 Transcription Factor)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170927
[Lr] Data última revisão:
170927
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:170514
[St] Status:MEDLINE
[do] DOI:10.4049/jimmunol.1700101


  5 / 303 MEDLINE  
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[PMID]:28327943
[Au] Autor:Liu K; Xu D; Li J; Bian C; Duan J; Zhou Y; Zhang M; You X; You Y; Chen J; Yu H; Xu G; Fang DA; Qiang J; Jiang S; He J; Xu J; Shi Q; Zhang Z; Xu P
[Ad] Endereço:Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081, China.
[Ti] Título:Whole genome sequencing of Chinese clearhead icefish, Protosalanx hyalocranius.
[So] Source:Gigascience;6(4):1-6, 2017 Apr 01.
[Is] ISSN:2047-217X
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Background: Chinese clearhead icefish, Protosalanx hyalocranius , is a representative icefish species with economic importance and special appearance. Due to its great economic value in China, the fish was introduced into Lake Dianchi and several other lakes from the Lake Taihu half a century ago. Similar to the Sinocyclocheilus cavefish, the clearhead icefish has certain cavefish-like traits, such as transparent body and nearly scaleless skin. Here, we provide the whole genome sequence of this surface-dwelling fish and generated a draft genome assembly, aiming at exploring molecular mechanisms for the biological interests. A total of 252.1 Gb of raw reads were sequenced. Subsequently, a novel draft genome assembly was generated, with the scaffold N50 reaching 1.163 Mb. The genome completeness was estimated to be 98.39 % by using the CEGMA evaluation. Finally, we annotated 19 884 protein-coding genes and observed that repeat sequences account for 24.43 % of the genome assembly. We report the first draft genome of the Chinese clearhead icefish. The genome assembly will provide a solid foundation for further molecular breeding and germplasm resource protection in Chinese clearhead icefish, as well as other icefishes. It is also a valuable genetic resource for revealing the molecular mechanisms for the cavefish-like characters.
[Mh] Termos MeSH primário: Genoma
Genômica
Osmeriformes/genética
[Mh] Termos MeSH secundário: Animais
Biologia Computacional/métodos
Genômica/métodos
Sequenciamento de Nucleotídeos em Larga Escala
Anotação de Sequência Molecular
Osmeriformes/classificação
Fenótipo
Filogenia
Análise de Sequência de DNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170801
[Lr] Data última revisão:
170801
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170323
[St] Status:MEDLINE
[do] DOI:10.1093/gigascience/giw012


  6 / 303 MEDLINE  
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[PMID]:28291808
[Au] Autor:Hammock BG; Slater SB; Baxter RD; Fangue NA; Cocherell D; Hennessy A; Kurobe T; Tai CY; Teh SJ
[Ad] Endereço:Aquatic Health Program, School of Veterinary Medicine, Department of Anatomy, Physiology, and Cell Biology, VetMed 3B, University of California Davis, Davis, California, United States of America.
[Ti] Título:Foraging and metabolic consequences of semi-anadromy for an endangered estuarine fish.
[So] Source:PLoS One;12(3):e0173497, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Diadromy affords fish access to productive ecosystems, increasing growth and ultimately fitness, but it is unclear whether these advantages persist for species migrating within highly altered habitat. Here, we compared the foraging success of wild Delta Smelt-an endangered, zooplanktivorous, annual, semi-anadromous fish that is endemic to the highly altered San Francisco Estuary (SFE)-collected from freshwater (<0.55 psu) and brackish habitat (≥0.55 psu). Stomach fullness, averaged across three generations of wild Delta Smelt sampled from juvenile through adult life stages (n = 1,318), was 1.5-fold higher in brackish than in freshwater habitat. However, salinity and season interacted, with higher fullness (1.7-fold) in freshwater than in brackish habitat in summer, but far higher fullness in brackish than freshwater habitat during fall/winter and winter/spring (1.8 and 2.0-fold, respectively). To examine potential causes of this interaction we compared mesozooplankton abundance, collected concurrently with the Delta Smelt, in freshwater and brackish habitat during summer and fall/winter, and the metabolic rate of sub-adult Delta Smelt acclimated to salinities of 0.4, 2.0, and 12.0 psu in a laboratory experiment. A seasonal peak in mesozooplankton density coincided with the summer peak in Delta Smelt foraging success in freshwater, and a pronounced decline in freshwater mesozooplankton abundance in the fall coincided with declining stomach fullness, which persisted for the remainder of the year (fall, winter and spring). In brackish habitat, greater foraging 'efficiency' (prey items in stomachs/mesozooplankton abundance) led to more prey items per fish and generally higher stomach fullness (i.e., a higher proportion of mesozooplankton detected in concurrent trawls were eaten by fish in brackish habitat). Delta Smelt exhibited no difference in metabolic rate across the three salinities, indicating that metabolic responses to salinity are unlikely to have caused the stomach fullness results. Adult migration and freshwater spawning therefore places young fish in a position to exploit higher densities of prey in freshwater in the late spring/summer, and subsequent movement downstream provides older fish more accessible prey in brackish habitat. Thus, despite endemism to a highly-altered estuary, semi-anadromy provided substantial foraging benefits to Delta Smelt, consistent with other temperate migratory fish.
[Mh] Termos MeSH primário: Espécies em Perigo de Extinção
Estuários
Comportamento Alimentar
Osmeriformes/fisiologia
[Mh] Termos MeSH secundário: Animais
Salinidade
Estações do Ano
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170908
[Lr] Data última revisão:
170908
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170315
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0173497


  7 / 303 MEDLINE  
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[PMID]:28254710
[Au] Autor:Hu S; Zhang H; Shen G; Yuan Z; Xu T; Ji R
[Ad] Endereço:Shanghai Academy of Environmental Sciences, Shanghai, 200233, China. Electronic address: husq@saes.sh.cn.
[Ti] Título:Effects of 17ß-estradiol and 17α-ethinylestradiol on the embryonic development of the clearhead icefish (Protosalanx hyalocranius).
[So] Source:Chemosphere;176:18-24, 2017 Jun.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Estrogenic effects of 17ß-estradiol (E2) and 17α-ethinylestradiol (EE2) on animals have been widely reported. The high sensitivity of fish in the early-life stages to xenobiotics can be exploited to evaluate the developmental effects of environmentally relevant levels of E2 and EE2. In this work, clearhead icefish (Protosalanx hyalocranius) embryos (blastula stage) were exposed to E2 or EE2 at concentrations between 0.05 ng/L and 1 mg/L. The toxicity endpoints of mortality, teratogenesis, and hatching retardation were evaluated. The results showed that continuous exposure of the fish embryos/larvae to higher concentrations of E2 and EE2 dramatically increased mortality after 17 days, when the hatching period started. An E2 concentration of 8 µg/L (day 16) and an EE2 concentration of at 0.2 mg/L (day 18) induced maximum teratogenesis rates of 30% and 35%, respectively. Embryos exposed to 0.2 mg E2 or EE2/L had a significantly retarded hatching time compared to the control. Thus, although environmentally relevant concentrations E2 and EE2 are not lethal for P. hyalocranius embryos or larvae, their ability to induce teratogenesis and hatching retardation merits concern.
[Mh] Termos MeSH primário: Embrião não Mamífero/efeitos dos fármacos
Estradiol/toxicidade
Etinilestradiol/toxicidade
Osmeriformes/embriologia
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Animais
China
Embrião não Mamífero/anormalidades
Desenvolvimento Embrionário/efeitos dos fármacos
Monitoramento Ambiental
Larva/efeitos dos fármacos
Osmeriformes/anormalidades
Rios/química
Teratogênese/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 423D2T571U (Ethinyl Estradiol); 4TI98Z838E (Estradiol)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170517
[Lr] Data última revisão:
170517
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170304
[St] Status:MEDLINE


  8 / 303 MEDLINE  
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[PMID]:28130078
[Au] Autor:Lu XJ; Chen Q; Chen J; Chen J
[Ad] Endereço:Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China.
[Ti] Título:Molecular identification and functional analysis of KLF2 in Plecoglossus altivelis (ayu): It's regulatory role in monocyte/macrophage activation.
[So] Source:Fish Shellfish Immunol;62:257-264, 2017 Mar.
[Is] ISSN:1095-9947
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Monocytes/macrophages (MO/MФ) play an important role in the response to infection in Plecoglossus altivelis (ayu). However, the role of transcription factors in the function of ayu MO/MФ is poorly understood. Here, we cloned the cDNA sequence of the Kruppel-like factor 2 (PaKLF2) gene from ayu. Phylogenetic analysis indicated that PaKLF2 was closest to that of Atlantic salmon (Salmo salar). Real time quantitative PCR (RT-qPCR) revealed that the PaKLF2 mRNA level was highest in the peripheral blood mononuclear cells among all tested tissues. The mRNA expression of PaKLF2 was upregulated in the head kidney, liver, spleen, and brain after Listonella anguillarum infection. Subsequently, PaKLF2 was expressed and purified to prepare anti-PaKLF2 antibodies. After L. anguillarum challenge, the PaKLF2 mRNA and protein levels were significantly upregulated in ayu MO/MФ. Moreover, PaKLF2 knockdown in MO/MФ resulted in the enhancement of cytokine production as well as phagocytotic and bactericidal capability. Therefore, PaKLF2 may modulate the immune response in ayu by suppressing the function of MO/MФ.
[Mh] Termos MeSH primário: Doenças dos Peixes/genética
Proteínas de Peixes/genética
Fatores de Transcrição Kruppel-Like/genética
Ativação de Macrófagos
Osmeriformes
Vibrioses/veterinária
[Mh] Termos MeSH secundário: Sequência de Aminoácidos
Animais
Sequência de Bases
Clonagem Molecular
DNA Complementar/genética
DNA Complementar/metabolismo
Doenças dos Peixes/imunologia
Doenças dos Peixes/microbiologia
Proteínas de Peixes/química
Proteínas de Peixes/metabolismo
Fatores de Transcrição Kruppel-Like/química
Fatores de Transcrição Kruppel-Like/metabolismo
Macrófagos/imunologia
Monócitos/imunologia
Filogenia
RNA Mensageiro/genética
RNA Mensageiro/metabolismo
Alinhamento de Sequência/veterinária
Regulação para Cima
Vibrio/fisiologia
Vibrioses/genética
Vibrioses/imunologia
Vibrioses/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Complementary); 0 (Fish Proteins); 0 (Kruppel-Like Transcription Factors); 0 (RNA, Messenger)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170410
[Lr] Data última revisão:
170410
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170129
[St] Status:MEDLINE


  9 / 303 MEDLINE  
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[PMID]:27697381
[Au] Autor:McGoran AR; Clark PF; Morritt D
[Ad] Endereço:School of Biological Sciences, Royal Holloway University of London, Egham, Surrey TW20 0EX, UK. Electronic address: alexandra.mcgoran.2012@live.rhul.ac.uk.
[Ti] Título:Presence of microplastic in the digestive tracts of European flounder, Platichthys flesus, and European smelt, Osmerus eperlanus, from the River Thames.
[So] Source:Environ Pollut;220(Pt A):744-751, 2017 Jan.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Like many urban catchments, the River Thames in London is contaminated with plastics. This pollutant is recorded on the river banks, in the benthic environment and in the water column. The present study was conducted to assess the extent of microplastic ingestion in two River Thames fish species, the European flounder (Platichthys flesus) and European smelt (Osmerus eperlanus). Samples were collected from two sites in Kent, England; Erith and Isle of Grain/Sheppey, near Sheerness, with the latter being more estuarine. The results revealed that up to 75% of sampled European flounder had plastic fibres in the gut compared with only 20% of smelt. This difference may be related to their diverse feeding behaviours: European flounder are benthic feeders whilst European smelt are pelagic predators. The fibres were predominantly red or black polyamides and other fibres included acrylic, nylon, polyethylene and polyethylene terephthalate and there was no difference in occurrence between the sites sampled.
[Mh] Termos MeSH primário: Linguado
Trato Gastrointestinal
Osmeriformes
Plásticos/análise
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Animais
Inglaterra
Londres
Rios
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plastics); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161005
[St] Status:MEDLINE


  10 / 303 MEDLINE  
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[PMID]:27693303
[Au] Autor:Yoshioka H
[Ad] Endereço:Faculty of Life and Environmental Science, Shimane University, Nishikawatsu-cho 1060, Matsue, Shimane 690-8504, Japan. Electronic address: yoshih@life.shimane-u.ac.jp.
[Ti] Título:Mathematical analysis and validation of an exactly solvable model for upstream migration of fish schools in one-dimensional rivers.
[So] Source:Math Biosci;281:139-148, 2016 Nov.
[Is] ISSN:1879-3134
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Upstream migration of fish schools in 1-D rivers as an optimal control problem is formulated where their swimming velocity and the horizontal oblateness are taken as control variables. The objective function to be maximized through a migration process consists of the biological and ecological profit to be gained at the upstream-end of a river, energetic cost of swimming against the flow, and conceptual cost of forming a school. Under simplified conditions where the flow is uniform in both space and time and the profit to be gained at the goal of migration is sufficiently large, the optimal control variables are determined from a system of algebraic equations that can be solved in a cascading manner. Mathematical analysis of the system reveals that the optimal controls are uniquely found and the model is exactly solvable under certain conditions on the functions and parameters, which turn out to be realistic and actually satisfied in experimental fish migration. Identification results of the functional shapes of the functions and the parameters with experimentally observed data of swimming schools of Plecoglossus altivelis (Ayu) validate the present mathematical model from both qualitative and quantitative viewpoints. The present model thus turns out to be consistent with the reality, showing its potential applicability to assessing fish migration in applications.
[Mh] Termos MeSH primário: Migração Animal
Modelos Teóricos
Osmeriformes
Rios
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:JOURNAL ARTICLE; VALIDATION STUDIES
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170904
[Lr] Data última revisão:
170904
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161004
[St] Status:MEDLINE



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BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde