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  1 / 2051 MEDLINE  
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[PMID]:28934713
[Au] Autor:Cacciatore F; Boscolo Brusà R; Noventa S; Antonini C; Moschino V; Formalewicz M; Gion C; Berto D; Gabellini M; Marin MG
[Ad] Endereço:ISPRA - Institute for Environmental Protection and Research, Loc. Brondolo, 30015 Chioggia, Italy. Electronic address: federica.cacciatore@isprambiente.it.
[Ti] Título:Imposex levels and butyltin compounds (BTs) in Hexaplex trunculus (Linnaeus, 1758) from the northern Adriatic Sea (Italy): Ecological risk assessment before and after the ban.
[So] Source:Ecotoxicol Environ Saf;147:688-698, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to compare imposex and butyltin compounds (BTs) data, collected before and after the organotin ban in 2008, in order to assess temporal and spatial variation of the phenomenon, the decline of BT contamination, and the effects on Hexaplex trunculus population in the coastal area of the northern Adriatic Sea, close to the Venice Lagoon. Both in marine and in lagoon sites, the results obtained in 2013-2015 showed a significant decline in the incidence of imposex in respect to those from the 2002 survey. In 2002, lagoon samples exhibited Relative Penis Size Index (RPSI) higher than marine samples, whereas no differences were detected in the recent survey, when all RPSI values were below 0.6%. Vas Deference Sequence Index (VDSI) mean values were over 4 before the ban introduction and below this value after that, indicating more critical conditions for gastropod population in 2002 rather than in 2013-15. Percentage of sterile females was up to 69% in 2002, whilst in the more recent survey no sterile female was found. Range of BT concentrations in gastropods decreased from 252 to 579 to 16-31ng∑BT/g d.w. BT body burdens varied according to a gender dependant pattern, with higher concentrations observed in females than in males. A first attempt to propose a classification based on BT impact on H. trunculus, according to the Water Framework Directive, revealed that most sites were in Bad ecological status before the ban and attained a Poor/Moderate status after that.
[Mh] Termos MeSH primário: Transtornos do Desenvolvimento Sexual/induzido quimicamente
Monitoramento Ambiental/métodos
Gastrópodes/efeitos dos fármacos
Compostos de Trialquitina/toxicidade
Poluentes Químicos da Água/toxicidade
[Mh] Termos MeSH secundário: Animais
Carga Corporal (Radioterapia)
Feminino
Gastrópodes/metabolismo
Itália
Masculino
Mar Mediterrâneo
Medição de Risco
Água do Mar/química
Compostos de Trialquitina/metabolismo
Poluentes Químicos da Água/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Trialkyltin Compounds); 0 (Water Pollutants, Chemical); 4XDX163P3D (tributyltin)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170922
[St] Status:MEDLINE


  2 / 2051 MEDLINE  
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[PMID]:29191884
[Au] Autor:Simicevic V
[Ad] Endereço:Rijeka, Croatia.
[Ti] Título:Poachers threaten Balkans' underground biodiversity.
[So] Source:Science;358(6367):1116-1117, 2017 Dec 01.
[Is] ISSN:1095-9203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Biodiversidade
Conservação dos Recursos Naturais
[Mh] Termos MeSH secundário: Animais
Península Balcânica
Cavernas
Gastrópodes
Proteidae
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171202
[St] Status:MEDLINE
[do] DOI:10.1126/science.358.6367.1116


  3 / 2051 MEDLINE  
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[PMID]:29343708
[Au] Autor:Peck VL; Oakes RL; Harper EM; Manno C; Tarling GA
[Ad] Endereço:British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge, CB3 0ET, UK. vlp@bas.ac.uk.
[Ti] Título:Pteropods counter mechanical damage and dissolution through extensive shell repair.
[So] Source:Nat Commun;9(1):264, 2018 01 17.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The dissolution of the delicate shells of sea butterflies, or pteropods, has epitomised discussions regarding ecosystem vulnerability to ocean acidification over the last decade. However, a recent demonstration that the organic coating of the shell, the periostracum, is effective in inhibiting dissolution suggests that pteropod shells may not be as susceptible to ocean acidification as previously thought. Here we use micro-CT technology to show how, despite losing the entire thickness of the original shell in localised areas, specimens of polar species Limacina helicina maintain shell integrity by thickening the inner shell wall. One specimen collected within Fram Strait with a history of mechanical and dissolution damage generated four times the thickness of the original shell in repair material. The ability of pteropods to repair and maintain their shells, despite progressive loss, demonstrates a further resilience of these organisms to ocean acidification but at a likely metabolic cost.
[Mh] Termos MeSH primário: Exoesqueleto/fisiologia
Ecossistema
Gastrópodes/fisiologia
Estresse Mecânico
[Mh] Termos MeSH secundário: Exoesqueleto/anatomia & histologia
Exoesqueleto/ultraestrutura
Animais
Gastrópodes/anatomia & histologia
Gastrópodes/ultraestrutura
Concentração de Íons de Hidrogênio
Microscopia Eletrônica de Varredura
Água do Mar/química
Microtomografia por Raio-X
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180227
[Lr] Data última revisão:
180227
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180119
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02692-w


  4 / 2051 MEDLINE  
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[PMID]:28888791
[Au] Autor:Furfaro G; Salvi D; Mancini E; Mariottini P
[Ad] Endereço:Department of Sciences, University "Roma Tre", Viale G. Marconi 446, I-00146 Rome, Italy. Electronic address: giulia.furfaro@uniroma3.it.
[Ti] Título:A multilocus view on Mediterranean aeolid nudibranchs (Mollusca): Systematics and cryptic diversity of Flabellinidae and Piseinotecidae.
[So] Source:Mol Phylogenet Evol;118:13-22, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Recent molecular studies revealed high level of endemism and numerous cryptic species within opisthobranchs, with Mediterranean taxa clearly understudied. Here we used genetic data from both mitochondrial and nuclear gene fragments as well as morphological data from taxonomically relevant characters to investigate the phylogenetic relationships and systematics of Mediterranean taxa of the Flabellinidae and Piseinotecidae families. Phylogenetic analyses based on Bayesian and Maximum-Likelihood methods indicate that Flabellinidae and Pisenotecidae taxa and species within the genera Flabellina, Calmella and Piseinotecus do not form monophyletic clades. These results are supported by our morphological analyses which allowed the re-evaluation of the triseriate radula condition in Pisenotecidae and Calmella taxa and their inclusion in the genus Flabellina as Flabellina gaditanacomb. nov. (synonym of F. confusa), Flabellina gabiniereicomb. nov. and Flabellina cavolinicomb. nov. Species delimitation and barcoding gap analyses allowed uncovering cryptic species within Flabellina gracilis (Alder and Hancock, 1844), F. trophina (Bergh, 1890), F. verrucosa (M. Sars, 1829) and F. ischitana Hirano and Thompson, 1990, the latter with an Atlantic form which is under description. This study corroborates the relevance of combining molecular and morphological data from multiple populations and species in the assessment of nudibranch diversity and classification.
[Mh] Termos MeSH primário: Gastrópodes/classificação
[Mh] Termos MeSH secundário: Animais
Teorema de Bayes
Biodiversidade
Gastrópodes/anatomia & histologia
Gastrópodes/genética
Funções Verossimilhança
Mar Mediterrâneo
Filogenia
RNA Ribossômico 16S/química
RNA Ribossômico 16S/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170911
[St] Status:MEDLINE


  5 / 2051 MEDLINE  
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[PMID]:29405690
[Au] Autor:Shchenkov SV
[Ti] Título:[Description of virgulate Cercaria etgesh larva Nov. (Xiphidiocercariae): A new type of virgule organ].
[So] Source:Parazitologiia;51(2):158-64, 2017 Mar-Apr.
[Is] ISSN:0031-1847
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:A new species of virgulate cercaria is described. The morphology and chaetotaxy of cercariae are studied. The new type of virgule organ is described. Every description is illustrated by drawings.
[Mh] Termos MeSH primário: Estruturas Animais/anatomia & histologia
Cercárias/anatomia & histologia
Gastrópodes/parasitologia
Trematódeos/anatomia & histologia
[Mh] Termos MeSH secundário: Estruturas Animais/fisiologia
Animais
Cercárias/fisiologia
Rios/parasitologia
Federação Russa
Trematódeos/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180222
[Lr] Data última revisão:
180222
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


  6 / 2051 MEDLINE  
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[PMID]:29038046
[Au] Autor:Sun S; Li Q; Kong L; Yu H
[Ad] Endereço:Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China.
[Ti] Título:Multiple reversals of strand asymmetry in molluscs mitochondrial genomes, and consequences for phylogenetic inferences.
[So] Source:Mol Phylogenet Evol;118:222-231, 2018 Jan.
[Is] ISSN:1095-9513
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Strand asymmetry in nucleotide composition is a remarkable feature of animal mitochondrial genomes. The strand-specific bias in the nucleotide composition of the mtDNA has been known to be highly problematic for phylogenetic analyses. Here, the strand asymmetry was compared across 140 mollusc species and analyzed for a mtDNA fragment including twelve protein-coding genes. The analyses show that almost all species in Gastropoda (except Heterobranchia) and all species in Bivalvia present reversals of strand bias. The skew values on individual genes for all codon positions (P ), third codon positions (P ), and fourfold redundant third codon positions (P ) indicated that CG skews are the best indicators of strand asymmetry. The differences in the patterns of strand asymmetry significantly influenced the amino acid composition of the encoded proteins. These biases are most striking for the amino acids Valine, Cysteine, Asparagine and Threonines, which appear to have evolved asymmetrical exchanges in response to shifts in nucleotide composition. Molluscs with strong variability of genome architectures (ARs) are usually characterized by a reversal of the usual strand bias. Phylogenetic analyses show that reversals of asymmetric mutational constraints have consequences on the phylogenetic inferences, as taxa characterized by reverse strand bias (Heterobranchia and Bivalvia) tend to group together due to long-branch attraction (LBA) artifacts. Neutral Transitions Excluded (NTE) model did not overcome the problem of heterogeneous biases present in molluscs mt genomes, suggested it may not be appropriate for molluscs mt genome data. Further refinement phylogenetic models may help us better understand internal relationships among these diverse organisms.
[Mh] Termos MeSH primário: Genoma Mitocondrial
Moluscos/classificação
[Mh] Termos MeSH secundário: Aminoácidos/química
Aminoácidos/metabolismo
Animais
Composição de Bases
Bivalves/classificação
Bivalves/genética
Códon
Gastrópodes/classificação
Gastrópodes/genética
Moluscos/genética
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Amino Acids); 0 (Codon)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171018
[St] Status:MEDLINE


  7 / 2051 MEDLINE  
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[PMID]:28452048
[Au] Autor:Underwood CN; Davies TW; Queirós AM
[Ad] Endereço:Centre for Ecology and Conservation, Biosciences, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, TR10 9FE, UK.
[Ti] Título:Artificial light at night alters trophic interactions of intertidal invertebrates.
[So] Source:J Anim Ecol;86(4):781-789, 2017 07.
[Is] ISSN:1365-2656
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Despite being globally widespread in coastal regions, the impacts of light pollution on intertidal ecosystems has received little attention. Intertidal species exhibit many night-time-dependent ecological strategies, including feeding, reproduction, orientation and predator avoidance, which are likely negatively affected by shifting light regimes, as has been observed in terrestrial and aquatic taxa. Coastal lighting may shape intertidal communities through its influence on the nocturnal foraging activity of dogwhelks (Nucella lapillus), a widespread predatory mollusc that structures biodiversity in temperate rocky shores. In the laboratory, we investigated whether the basal and foraging activity of this predator was affected by exposure to night-time lighting both in the presence and absence of olfactory predator cues (Carcinus maenas, common shore crab). Assessments of dogwhelks' behavioural responses to night-time white LED lighting were performed on individuals that had been acclimated to night-time white LED lighting conditions for 16 days and individuals that had not previously been exposed to artificial light at night. Dogwhelks acclimated to night-time lighting exhibited natural refuge-seeking behaviour less often compared to control animals, but were more likely to respond to and handle prey irrespective of whether olfactory predator cues were present. These responses suggest night-time lighting likely increased the energetic demand of dogwhelks through stress, encouraging foraging whenever food was available, regardless of potential danger. Contrastingly, whelks not acclimated under night-time lighting were more likely to respond to the presence of prey under artificial light at night when olfactory predator cues were present, indicating an opportunistic shift towards the use of visual instead of olfactory cues in risk evaluation. These results demonstrate that artificial night-time lighting influences the behaviour of intertidal fauna such that the balance of interspecific interactions involved in community structuring may be affected.
[Mh] Termos MeSH primário: Braquiúros
Cadeia Alimentar
Gastrópodes
Luz
[Mh] Termos MeSH secundário: Animais
Ecossistema
Comportamento Predatório
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180221
[Lr] Data última revisão:
180221
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE
[do] DOI:10.1111/1365-2656.12670


  8 / 2051 MEDLINE  
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[PMID]:29372973
[Au] Autor:Snegin EA; Sychev AA; Grebennikov ME; Snegina EA
[Ti] Título:[Assessment of the genetic distances between some species of the family Bradybaenidae (Mollusca, Pulmonata)].
[So] Source:Genetika;53(2):240-8, 2017 Feb.
[Is] ISSN:0016-6758
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:On the basis of inter-simple sequence repeat (ISSR) loci and the nucleotide sequences of nuclear (18S and ITS-1) and mitochondrial genes (COI and 16S), a phylogenetic analysis of the three species of terrestrial mollusks of the family Bradybaenidae (Mollusca, Pulmonata), Bradybaena fruticum Müll., Bradybaena schrencki Midd., and Bradybaena transbaicalia Shileyko, was conducted to clarify their taxonomic status. The analysis showed that Br. fruticum was far apart from the other two species (Br. schrencki and Br. transbaicalia). The genetic distance between the latter puts in doubt their status as distinct species. It is suggested that the species Br. transbaicalia can be treated as a form of Br. schrencki var. transbaicalia.
[Mh] Termos MeSH primário: Complexo IV da Cadeia de Transporte de Elétrons/genética
Gastrópodes
Proteínas Mitocondriais/genética
Filogenia
RNA Ribossômico 16S/genética
RNA Ribossômico 18S/genética
[Mh] Termos MeSH secundário: Animais
Gastrópodes/classificação
Gastrópodes/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Mitochondrial Proteins); 0 (RNA, Ribosomal, 16S); 0 (RNA, Ribosomal, 18S); EC 1.9.3.1 (Electron Transport Complex IV)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180216
[Lr] Data última revisão:
180216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180127
[St] Status:MEDLINE


  9 / 2051 MEDLINE  
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[PMID]:28466897
[Au] Autor:Bornancin L; Bonnard I; Mills SC; Banaigs B
[Ad] Endereço:CRIOBE, USR CNRS-EPHE-UPVD 3278, Université de Perpignan, 58 avenue P. Alduy, 66860 Perpignan, France. louis.bornancin@univ-perp.fr banaigs@univ-perp.fr.
[Ti] Título:Chemical mediation as a structuring element in marine gastropod predator-prey interactions.
[So] Source:Nat Prod Rep;34(6):644-676, 2017 06 07.
[Is] ISSN:1460-4752
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Covering: up to 2017Chemical mediation regulates behavioral interactions between species and thus affects population structure, community organization and ecosystem function. Among marine taxa that have developed chemical mediation strategies, gastropods belong to a diverse group of molluscs found worldwide, including species with a coiled, reduced or absent shell. Most gastropods use natural products to mediate a wide range of behaviors such as defense, prey location or interactions with con- and hetero-geners. Their chemically defended diet, such as cyanobacteria, algae, sponges, bryozoans and tunicates, provides them with a considerable opportunity either as shelter from predators, or as a means to enhance their own chemical defense. In addition to improving their defenses, molluscs also use prey secondary metabolites in complex chemical communication including settlement induction, prey detection and feeding preferences. The assimilation of prey secondary metabolites further provides the opportunity for interactions with conspecifics via diet-derived chemical cues or signals. This review intends to provide an overview on the sequestration, detoxification, and biotransformation of diet-derived natural products, as well as the role of these compounds as chemical mediators in gastropod-prey interactions.
[Mh] Termos MeSH primário: Ecossistema
Gastrópodes
[Mh] Termos MeSH secundário: Animais
Biologia Marinha
Estrutura Molecular
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1707
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170504
[St] Status:MEDLINE
[do] DOI:10.1039/c6np00097e


  10 / 2051 MEDLINE  
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[PMID]:28962967
[Au] Autor:Gao F; Jiang JZ; Wang JY; Wei HY
[Ad] Endereço:Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Shanghai Ocean University, Shanghai, 201306, China. Electronic address: tianchengyinuo@163.com.
[Ti] Título:Real-time isothermal detection of Abalone herpes-like virus and red-spotted grouper nervous necrosis virus using recombinase polymerase amplification.
[So] Source:J Virol Methods;251:92-98, 2018 Jan.
[Is] ISSN:1879-0984
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Abalone herpes-like virus (AbHV) and Red-spotted grouper nervous necrosis virus (RGNNV) are two serious viruses that infect animal populations in aquaculture. Both viruses cause diseases associated with high mortality rates, resulting in dramatic economic losses in the aquaculture industry. There are currently no effective treatments for either of these two viral diseases. Thus, early, rapid, and accurate diagnosis plays a fundamental role in disease prevention and control in aquaculture. Traditional methods of diagnosis, such as virus culture, enzyme-linked immunoassay, and polymerase chain reaction (PCR), are either time consuming or require sophisticated temperature control devices. In this study, one sets of specific primers and probes were designed for the real-time quantitative recombinase polymerase amplification (qRPA) detection of AbHV and RGNNV separately. The sensitivity and specificity of detection were evaluated by comparison with detection by conventional PCR and quantitative PCR. The optimal reaction temperature and time for virus detection is 37°C for 20min. The detection limit is 100 copies per reaction, making this approach faster and more sensitive than qPCR in this study. In a field application, the detection percentage of qRPA was higher than that of qPCR for both AbHV and NNV. Additionally, good correlation was found between qRPA and qPCR detection (R >0.8). The methods presented here can be used as alternatives to qPCR for quick and quantitative detection of pathogens infecting aquaculture species.
[Mh] Termos MeSH primário: Infecções por Vírus de DNA/veterinária
Herpesviridae/isolamento & purificação
Técnicas de Diagnóstico Molecular/métodos
Nodaviridae/isolamento & purificação
Técnicas de Amplificação de Ácido Nucleico/métodos
Infecções por Vírus de RNA/veterinária
[Mh] Termos MeSH secundário: Animais
Aquicultura
Infecções por Vírus de DNA/diagnóstico
Peixes
Gastrópodes
Herpesviridae/genética
Nodaviridae/genética
Infecções por Vírus de RNA/diagnóstico
Sensibilidade e Especificidade
Medicina Veterinária/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180201
[Lr] Data última revisão:
180201
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171001
[St] Status:MEDLINE



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