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[PMID]:29242323
[Au] Autor:Reese A
[Ti] Título:Ice-shrouded life sees daylight.
[So] Source:Science;358(6369):1366, 2017 Dec 15.
[Is] ISSN:1095-9203
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Ecossistema
Camada de Gelo
[Mh] Termos MeSH secundário: Animais
Euphausiacea
Cadeia Alimentar
Baleia Anã
Pepinos-do-Mar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180115
[Lr] Data última revisão:
180115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171216
[St] Status:MEDLINE
[do] DOI:10.1126/science.358.6369.1366


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[PMID]:28577218
[Au] Autor:Maage A; Nilsen BM; Julshamn K; Frøyland L; Valdersnes S
[Ad] Endereço:National Institute of Nutrition and Seafood Research, P. O. Box 2029, Nordnes, 5817, Bergen, Norway.
[Ti] Título:Total Mercury, Methylmercury, Inorganic Arsenic and Other Elements in Meat from Minke Whale (Balaenoptera acutorostrata) from the North East Atlantic Ocean.
[So] Source:Bull Environ Contam Toxicol;99(2):161-166, 2017 Aug.
[Is] ISSN:1432-0800
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Meat samples of 84 minke whales (Balaenoptera acutorostrata) mainly from the Barents Sea, collected between 1 May and 16 August 2011, were analyzed for total mercury, methylmercury, cadmium, lead, total arsenic, inorganic arsenic and selenium. The average total mercury concentration found was 0.15 ± 0.09 mg/kg, with a range from 0.05 to 0.49 mg/kg. The molar ratio of selenium to mercury varied between 1.0 and 10.3. Cadmium content ranged from 0.002 to 0.036 mg/kg, while the content of lead in whale meat ranged from <0.01 to 0.09 mg/kg. None of the whale samples exceeded established EU maximum levels for metals in fish muscle, but 4.8% and 6.8% of the samples exceeded Japanese maximum levels for total mercury and methylmercury, respectively, in whale meat. There was only minor variations in element concentrations between whales from different geographical areas, and cadmium was the only element were the concentration increased with increasing length.
[Mh] Termos MeSH primário: Arsênico/análise
Monitoramento Ambiental
Carne/análise
Compostos de Metilmercúrio/análise
Baleia Anã
Poluentes Químicos da Água/análise
[Mh] Termos MeSH secundário: Animais
Oceano Atlântico
Cádmio
Cetáceos
Peixes
Mercúrio/análise
Músculos/química
Selênio
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Methylmercury Compounds); 0 (Water Pollutants, Chemical); 00BH33GNGH (Cadmium); FXS1BY2PGL (Mercury); H6241UJ22B (Selenium); N712M78A8G (Arsenic)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170604
[St] Status:MEDLINE
[do] DOI:10.1007/s00128-017-2106-6


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[PMID]:28419962
[Au] Autor:Simond AE; Houde M; Lesage V; Verreault J
[Ad] Endereço:Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, P.O. Box 8888, Succursale Centre-ville, Montreal, QC H3C 3P8, Canada.
[Ti] Título:Temporal trends of PBDEs and emerging flame retardants in belugas from the St. Lawrence Estuary (Canada) and comparisons with minke whales and Canadian Arctic belugas.
[So] Source:Environ Res;156:494-504, 2017 07.
[Is] ISSN:1096-0953
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:An exponential level increase of the ubiquitous halogenated flame retardant (HFR) class polybrominated diphenyl ether (PBDE) has been documented during the 1990s in endangered belugas (Delphinapterus leucas) from the St. Lawrence Estuary (SLE), Eastern Canada. The recent worldwide bans and regulations of PBDE mixtures led to their replacement by alternative HFRs (so-called emerging HFRs) that are increasingly being reported in various environmental compartments. There are, however, limited knowledge on the spatial and temporal trends of PBDEs and emerging HFRs in cetaceans, especially after restrictions on PBDE usage. The first objective of this study was to investigate the occurrence of HFRs (35 PBDE congeners and 13 emerging compounds) in the blubber of belugas and minke whales (Balænoptera acutorostrata) found dead in the Estuary or Gulf of St. Lawrence as well as belugas from Nunavik (Canadian Arctic) collected as part of the Inuit subsistence hunt. A second objective was to investigate the trends of HFR concentrations in SLE beluga males between 1997 and 2013. PBDEs were the most abundant HFRs in all three whale populations, while hexabromobenzene (HBB), Chlordene Plus (CPlus), Dechlorane Plus (DP), and Dechlorane 604 Component B (Dec-604 CB) were quantified in the majority of blubber samples. Overall, concentrations of emerging HFRs were notably greater in SLE belugas compared to the two other whale populations, with the exception of DP and Dec-604 CB that were found in greater concentrations in Canadian Arctic belugas. No significant trend in blubber PBDE concentrations was found in SLE belugas during this 17-year period. This suggests that global PBDE regulations are too recent to observe changes in PBDE concentrations in belugas from this highly HFR-exposed environment. In contrast, concentrations of HBB and CPlus in SLE belugas decreased slightly from 1997 to 2013, while DP increased up until 2000 and decreased slightly thereafter. The occurrence and temporal variations of PBDEs and their replacement products in these cetaceans warrant continuous monitoring.
[Mh] Termos MeSH primário: Tecido Adiposo/química
Beluga/metabolismo
Retardadores de Chama/metabolismo
Éteres Difenil Halogenados/metabolismo
Baleia Anã/metabolismo
Poluentes Químicos da Água/metabolismo
[Mh] Termos MeSH secundário: Animais
Feminino
Retardadores de Chama/análise
Éteres Difenil Halogenados/análise
Masculino
Quebeque
Estações do Ano
Fatores de Tempo
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Flame Retardants); 0 (Halogenated Diphenyl Ethers); 0 (Water Pollutants, Chemical); 7REL09ZX35 (pentabromodiphenyl ether)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171119
[Lr] Data última revisão:
171119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170419
[St] Status:MEDLINE


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[PMID]:28086785
[Au] Autor:Malde K; Seliussen BB; Quintela M; Dahle G; Besnier F; Skaug HJ; Øien N; Solvang HK; Haug T; Skern-Mauritzen R; Kanda N; Pastene LA; Jonassen I; Glover KA
[Ad] Endereço:Institute of Marine Research, PO box 1870, Nordnes, N-5817, Bergen, Norway.
[Ti] Título:Whole genome resequencing reveals diagnostic markers for investigating global migration and hybridization between minke whale species.
[So] Source:BMC Genomics;18(1):76, 2017 01 13.
[Is] ISSN:1471-2164
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: In the marine environment, where there are few absolute physical barriers, contemporary contact between previously isolated species can occur across great distances, and in some cases, may be inter-oceanic. An example of this can be seen in the minke whale species complex. Antarctic minke whales are genetically and morphologically distinct from the common minke found in the north Atlantic and Pacific oceans, and the two species are estimated to have been isolated from each other for 5 million years or more. Recent atypical migrations from the southern to the northern hemisphere have been documented and fertile hybrids and back-crossed individuals between both species have also been identified. However, it is not known whether this represents a contemporary event, potentially driven by ecosystem changes in the Antarctic, or a sporadic occurrence happening over an evolutionary time-scale. We successfully used whole genome resequencing to identify a panel of diagnostic SNPs which now enable us address this evolutionary question. RESULTS: A large number of SNPs displaying fixed or nearly fixed allele frequency differences among the minke whale species were identified from the sequence data. Five panels of putatively diagnostic markers were established on a genotyping platform for validation of allele frequencies; two panels (26 and 24 SNPs) separating the two species of minke whale, and three panels (22, 23, and 24 SNPs) differentiating the three subspecies of common minke whale. The panels were validated against a set of reference samples, demonstrating the ability to accurately identify back-crossed whales up to three generations. CONCLUSIONS: This work has resulted in the development of a panel of novel diagnostic genetic markers to address inter-oceanic and global contact among the genetically isolated minke whale species and sub-species. These markers, including a globally relevant genetic reference data set for this species complex, are now openly available for researchers interested in identifying other potential whale hybrids in the world's oceans. The approach used here, combining whole genome resequencing and high-throughput genotyping, represents a universal approach to develop similar tools for other species and population complexes.
[Mh] Termos MeSH primário: Migração Animal
Marcadores Genéticos
Genoma
Genômica
Sequenciamento de Nucleotídeos em Larga Escala
Hibridização Genética
Baleia Anã/genética
[Mh] Termos MeSH secundário: Alelos
Animais
Mapeamento Cromossômico
Cruzamentos Genéticos
Frequência do Gene
Genética Populacional
Genômica/métodos
Genótipo
Polimorfismo de Nucleotídeo Único
Dinâmica Populacional
Reprodutibilidade dos Testes
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Genetic Markers)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171120
[Lr] Data última revisão:
171120
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170115
[St] Status:MEDLINE
[do] DOI:10.1186/s12864-016-3416-5


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[PMID]:27320816
[Au] Autor:Ohishi K; Bando T; Abe E; Kawai Y; Fujise Y; Maruyama T
[Ad] Endereço:Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka, Kanagawa 237-0061 Japan.
[Ti] Título:Long-term and large-scale epidemiology of Brucella infection in baleen whales and sperm whales in the western North Pacific and Antarctic Oceans.
[So] Source:J Vet Med Sci;78(9):1457-1464, 2016 Oct 01.
[Is] ISSN:1347-7439
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:In a long-term, large-scale serologic study in the western North Pacific Ocean, anti-Brucella antibodies were detected in common minke whales (Balaenoptera acutorostrata) in the 1994-2010 offshore surveys (21%, 285/1353) and in the 2006-2010 Japanese coastal surveys (20%, 86/436), in Bryde's whales (B. edeni brydei) in the 2000-2010 offshore surveys (9%, 49/542), in sei whales (B. borealis) in the 2002-2010 offshore surveys (5%, 40/788) and in sperm whales (Physeter macrocephalus) in the 2000-2010 offshore surveys (8%, 4/50). Anti-Brucella antibodies were not detected in 739 Antarctic minke whales (B. bonaerensis) in the 2000-2010 Antarctic surveys. This suggests that Brucella was present in the four large whale populations inhabiting the western North Pacific, but not in the Antarctic minke whale population. By PCR targeting for genes of outer membrane protein 2, the Brucella infection was confirmed in tissue DNA samples from Bryde's whales (14%, 2/14), sei whales (11%, 1/9) and sperm whales (50%, 2/4). A placental tissue and an apparently healthy fetus from a sperm whale were found to be PCR-positive, indicating that placental transmission might have occurred and the newborn could act as a bacterial reservoir. Marked granulomatous testes were observed only in mature animals of the three species of baleen whales in the western North Pacific offshore surveys, especially in common minke whales, and 29% (307/1064) of total mature males had abnormal testes. This study provides an insight into the status of marine Brucella infection at a global level.
[Mh] Termos MeSH primário: Balaenoptera/microbiologia
Brucelose/veterinária
Baleia Anã/microbiologia
Cachalote/microbiologia
[Mh] Termos MeSH secundário: Animais
Regiões Antárticas/epidemiologia
Anticorpos Antibacterianos/imunologia
Brucella/genética
Brucelose/epidemiologia
Feminino
Masculino
Oceano Pacífico/epidemiologia
Reação em Cadeia da Polimerase/veterinária
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Bacterial)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170622
[Lr] Data última revisão:
170622
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160621
[St] Status:MEDLINE


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[PMID]:27078153
[Au] Autor:Todd VL; Warley JC; Todd IB
[Ad] Endereço:Ocean Science Consulting, Ocean House, 4 Brewery Lane, Belhaven, Dunbar, East Lothian, United Kingdom.
[Ti] Título:Meals on Wheels? A Decade of Megafaunal Visual and Acoustic Observations from Offshore Oil & Gas Rigs and Platforms in the North and Irish Seas.
[So] Source:PLoS One;11(4):e0153320, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A decade of visual and acoustic detections of marine megafauna around offshore Oil & Gas (O&G) installations in the North and Irish Seas are presented. Marine megafauna activity was monitored visually and acoustically by Joint Nature Conservation Committee (JNCC) qualified and experienced Marine Mammal Observers (MMO) and Passive Acoustic Monitoring (PAM) Operators respectively, with real-time towed PAM in combination with industry standard software, PAMGuard. Monitoring was performed during routine O&G industrial operations for underwater noise mitigation purposes, and to ensure adherence to regulatory guidelines. Incidental sightings by off-effort MMOs and installation crew were also reported. Visual and acoustic monitoring spanned 55 non-consecutive days between 2004 and 2014. A total of 47 marine mammal sightings were recorded by MMOs on dedicated watch, and 10 incidental sightings of marine megafauna were reported over 10 years. Species included: harbour porpoise (Phocoena phocoena), Atlantic white-sided dolphin (Lagenorhynchus acutus), white beaked dolphin (Lagenorhynchus albirostris), common dolphin (Delphinus delphis), minke whale (Balaenoptera acutorostrata), common seal (Phoca vitulina), grey seal (Halichoerus grypus) and, basking shark (Cetorhinus maximus). Passive Acoustic Monitoring was conducted on two occasions in 2014; 160 PAM hours over 12 days recorded a total of 308 individual clicks identified as harbour porpoises. These appear to be the first such acoustic detections obtained from a North Sea drilling rig whilst using a typically configured hydrophone array designed for towing in combination with real-time PAMGuard software. This study provides evidence that marine megafauna are present around mobile and stationary offshore O&G installations during routine operational activities. On this basis, Environmental Impact Assessments (EIAs) for decommissioning O&G platforms should be carried-out on a case-by-case basis, and must include provisions for hitherto overlooked marine megafauna.
[Mh] Termos MeSH primário: Ecossistema
Meio Ambiente
Mamíferos/fisiologia
Campos de Petróleo e Gás
[Mh] Termos MeSH secundário: Acústica
Animais
Conservação dos Recursos Naturais/métodos
Conservação dos Recursos Naturais/estatística & dados numéricos
Mamíferos/classificação
Biologia Marinha/métodos
Biologia Marinha/estatística & dados numéricos
Baleia Anã/fisiologia
Mar do Norte
Oceanos e Mares
Phoca/fisiologia
Dinâmica Populacional
Focas Verdadeiras/fisiologia
Tubarões/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1608
[Cu] Atualização por classe:160423
[Lr] Data última revisão:
160423
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160415
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0153320


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[PMID]:26935687
[Au] Autor:Morishita J
[Ad] Endereço:National Research Institute of Far Seas Fisheries, Shizuoka, Japan.
[Ti] Título:Research data: Japan justifies whaling stance.
[So] Source:Nature;531(7592):35, 2016 Mar 03.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Baleia Anã
Pesquisa/legislação & jurisprudência
Pesquisa/normas
[Mh] Termos MeSH secundário: Animais
[Pt] Tipo de publicação:COMMENT; LETTER
[Em] Mês de entrada:1604
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160304
[St] Status:MEDLINE
[do] DOI:10.1038/531035a


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[PMID]:26907101
[Au] Autor:Sumida PY; Alfaro-Lucas JM; Shimabukuro M; Kitazato H; Perez JA; Soares-Gomes A; Toyofuku T; Lima AO; Ara K; Fujiwara Y
[Ad] Endereço:Instituto Oceanográfico, Universidade de São Paulo, Praça do Oceanográfico, 191, CEP 05508-120, São Paulo-SP, Brazil.
[Ti] Título:Deep-sea whale fall fauna from the Atlantic resembles that of the Pacific Ocean.
[So] Source:Sci Rep;6:22139, 2016 Feb 24.
[Is] ISSN:2045-2322
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Whale carcasses create remarkable habitats in the deep-sea by producing concentrated sources of organic matter for a food-deprived biota as well as places of evolutionary novelty and biodiversity. Although many of the faunal patterns on whale falls have already been described, the biogeography of these communities is still poorly known especially from basins other than the NE Pacific Ocean. The present work describes the community composition of the deepest natural whale carcass described to date found at 4204 m depth on Southwest Atlantic Ocean with manned submersible Shinkai 6500. This is the first record of a natural whale fall in the deep Atlantic Ocean. The skeleton belonged to an Antarctic Minke whale composed of only nine caudal vertebrae, whose degradation state suggests it was on the bottom for 5-10 years. The fauna consisted mainly of galatheid crabs, a new species of the snail Rubyspira and polychaete worms, including a new Osedax species. Most of the 41 species found in the carcass are new to science, with several genera shared with NE Pacific whale falls and vent and seep ecosystems. This similarity suggests the whale-fall fauna is widespread and has dispersed in a stepping stone fashion, deeply influencing its evolutionary history.
[Mh] Termos MeSH primário: Ração Animal/análise
Carne/análise
Baleia Anã/fisiologia
[Mh] Termos MeSH secundário: Animais
Organismos Aquáticos/classificação
Organismos Aquáticos/fisiologia
Oceano Atlântico
Biodiversidade
Osso e Ossos
Brasil
Ecossistema
Oceano Pacífico
Especificidade da Espécie
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160225
[St] Status:MEDLINE
[do] DOI:10.1038/srep22139


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[PMID]:26791711
[Au] Autor:Brierley AS; Clapham PJ
[Ad] Endereço:University of St Andrews, UK.
[Ti] Título:Whaling permits: Japan's whaling is unscientific.
[So] Source:Nature;529(7586):283, 2016 Jan 21.
[Is] ISSN:1476-4687
[Cp] País de publicação:England
[La] Idioma:eng
[Mh] Termos MeSH primário: Baleia Anã
Pesquisa/legislação & jurisprudência
Pesquisa/normas
[Mh] Termos MeSH secundário: Animais
Japão
Oceanos e Mares
Revisão da Pesquisa por Pares/legislação & jurisprudência
Revisão da Pesquisa por Pares/normas
[Pt] Tipo de publicação:LETTER
[Em] Mês de entrada:1604
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160122
[St] Status:MEDLINE
[do] DOI:10.1038/529283a


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[PMID]:26773392
[Au] Autor:Sonne C; Gustavson K; Eulaers I; Desforges JP; Letcher RJ; Rigét FF; Styrishave B; Dietz R
[Ad] Endereço:Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre, Aarhus University, P.O. Box 358, DK-4000 Roskilde, Denmark. Electronic address: cs@bios.au.dk.
[Ti] Título:Risk evaluation of the Arctic environmental POP exposure based on critical body residue and critical daily dose using captive Greenland sledge dogs (Canis familiaris) as surrogate species.
[So] Source:Environ Int;88:221-227, 2016 Mar.
[Is] ISSN:1873-6750
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The risk from POP (persistent organic pollutant) exposure and subsequent reproductive, immunotoxic and liver histopathological effects was evaluated in a classical parallel trial on Greenland sledge dogs (Canis familiaris) fed contaminated minke whale (Balaenoptera acutorostrata) blubber. First the critical body residues (CBRs) were estimated using the physiologically-based pharmacokinetic (PBPK) model for seven POP compounds based on rat critical daily doses (CDDs). These were then compared with the actual daily oral POP doses (DD) and body residues (BR) in the sledge dogs by calculating risk quotients (RQDD: DD/CDD; RQBR: BR/CBR; ≥1 indicates risk). The results showed that risk quotients for reproductive, immunotoxic and liver histopathological effects were significantly lowest in the control group (p<0.01) while risk quotients based on daily doses (RQDD) were significantly lower than RQs based on body residues (RQBR) (all p<0.01). RQBR in the exposed group ranged from 1.0-12 for reproductive and immunotoxic effects while those for liver histopathological effects ranged from 0.7-3.0. PCBs (polychlorinated biphenyls) and chlordanes were the dominant driver behind high immune and reproductive RQs while dieldrin was the most important factor behind RQs for liver histopathology. Principal component analyses and Spearman rank correlation analyses showed that complement and cellular immune parameters were significantly negative correlated with RQBR (all p<0.05) while logistic regression showed that RQDD had a significant effect on the number of born cups (p=0.03). No significantly relations were found between RQs and hormone concentrations, number of gestations, antibody titres or liver histopathology. These results confirm previous studies showing that POP exposure negatively impacts steroid hormones, various immune parameters, as well as liver histopathology in sledge dogs. It is also clear that RQBR is the best reflector of health effects from POP exposure and that it is especially accurate in predicting immune and reproductive effects. We recommend that PBPK modelled (CBR) and RQBR should be used in the assessment of POP exposure and health effects in Arctic top predators.
[Mh] Termos MeSH primário: Cães/metabolismo
Exposição Ambiental
Poluentes Ambientais/toxicidade
Compostos Orgânicos/toxicidade
[Mh] Termos MeSH secundário: Tecido Adiposo/química
Animais
Regiões Árticas
Feminino
Groenlândia
Fígado/efeitos dos fármacos
Baleia Anã
Distribuição Aleatória
Reprodução/efeitos dos fármacos
Medição de Risco
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Environmental Pollutants); 0 (Organic Chemicals)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:170801
[Lr] Data última revisão:
170801
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160117
[St] Status:MEDLINE



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