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[PMID]:28918287
[Au] Autor:Hoydal KS; Styrishave B; Ciesielski TM; Letcher RJ; Dam M; Jenssen BM
[Ad] Endereço:Department of Biology, Norwegian University of Science and Technology, Trondheim, Norway; Environment Agency, Traðagøta 38, P.O. BOX 2048, FO-165 Argir, Faroe Islands. Electronic address: katrinh@us.fo.
[Ti] Título:Steroid hormones and persistent organic pollutants in plasma from North-eastern Atlantic pilot whales.
[So] Source:Environ Res;159:613-621, 2017 11.
[Is] ISSN:1096-0953
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Persistent organic pollutants (POPs) are known to have endocrine disruptive effects, interfering with endogenous steroid hormones. The present study examined nine steroid hormones and their relationships with the concentrations of selected POPs in pilot whales (Globicephala melas) from the Faroe Islands, NE Atlantic. The different steroids were detected in 15 to all of the 26 individuals. High concentrations of progesterone (83.3-211.7pmol/g) and pregnenolone (PRE; 4.68-5.69pmol/g) were found in three adult females indicating that they were pregnant or ovulating. High androgen concentrations in two of the males reflected that one was adult and that one (possibly) had reached puberty. In males a significant positive and strong correlation between body length and testosterone (TS) levels was identified. Furthermore, positive and significant correlations were found between 4-OH-CB107/4'-OH-CB108 and 17ß-estradiol in males. In adult females significant positive correlations were identified between PRE and CB149 and t-nonachlor, between estrone and CB138, -149, -187 and p,p'-DDE, between androstenedione and CB187, and between TS and CB-99 and -153. Although relationships between the POPs and the steroid hormones reported herein are not evidence of cause-effect relationships, the positive correlations between steroids and POPs, particularly in females, suggest that POPs may have some endocrine disrupting effects on the steroid homeostasis in this species.
[Mh] Termos MeSH primário: Hormônios Esteroides Gonadais/sangue
Poluentes Químicos da Água/sangue
Baleias Piloto/metabolismo
[Mh] Termos MeSH secundário: Animais
Dinamarca
Feminino
Masculino
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Gonadal Steroid Hormones); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171120
[Lr] Data última revisão:
171120
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170918
[St] Status:MEDLINE


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[PMID]:28350446
[Au] Autor:Dassuncao C; Hu XC; Zhang X; Bossi R; Dam M; Mikkelsen B; Sunderland EM
[Ad] Endereço:Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University , Boston, Massachusetts 02115, United States.
[Ti] Título:Temporal Shifts in Poly- and Perfluoroalkyl Substances (PFASs) in North Atlantic Pilot Whales Indicate Large Contribution of Atmospheric Precursors.
[So] Source:Environ Sci Technol;51(8):4512-4521, 2017 Apr 18.
[Is] ISSN:1520-5851
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Poly- and perfluoroalkyl substances (PFASs) are persistent, bioaccumulative anthropogenic compounds associated with adverse health impacts on humans and wildlife. PFAS production changed in North America and Europe around the year 2000, but impacts on wildlife appear to vary across species and location. Unlike other mammal species, cetaceans lack the enzyme for transforming an important intermediate precursor (perfluorooctane sulfonamide: FOSA), into a prevalent compound in most wildlife (perfluorooctanesulfonate: PFOS). Thus, their tissue burden differentiates these two compounds while other mammals contain PFOS from both direct exposure and precursor degradation. Here we report temporal trends in 15 PFASs measured in muscle from juvenile male North Atlantic pilot whales (Globicephala melas) harvested between 1986 and 2013. FOSA accounted for a peak of 84% of the 15 PFASs around 2000 but declined to 34% in recent years. PFOS and long-chained PFCAs (C9-C13) increased significantly over the whole period (2.8% yr to 8.3% yr ), but FOSA declined by 13% yr after 2006. Results from FOSA partitioning and bioaccumulation modeling forced by changes in atmospheric inputs reasonably capture magnitudes and temporal patterns in FOSA concentrations measured in pilot whales. Rapid changes in atmospheric FOSA in polar and subpolar regions around 2000 helps to explain large declines in PFOS exposure for species that metabolize FOSA, including seafood consuming human populations. This work reinforces the importance of accounting for biological exposures to PFAS precursors.
[Mh] Termos MeSH primário: Fluorcarbonetos
Baleias Piloto
[Mh] Termos MeSH secundário: Adolescente
Ácidos Alcanossulfônicos
Animais
Monitoramento Ambiental
Seres Humanos
Sulfonamidas
Poluentes Químicos da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alkanesulfonic Acids); 0 (Fluorocarbons); 0 (Sulfonamides); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:170608
[Lr] Data última revisão:
170608
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170329
[St] Status:MEDLINE
[do] DOI:10.1021/acs.est.7b00293


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[PMID]:27729046
[Au] Autor:Suárez-Santana CM; Fernández-Maldonado C; Díaz-Delgado J; Arbelo M; Suárez-Bonnet A; Espinosa de Los Monteros A; Câmara N; Sierra E; Fernández A
[Ad] Endereço:Division of Histology and Animal Pathology, Institute for Animal Health and Food Security, Veterinary School, University of Las Palmas de Gran Canaria, C/Transmontana, 35413, Canary Islands, Spain. cristian.ss104@gmail.com.
[Ti] Título:Pulmonary carcinoma with metastasis in a long-finned pilot whale (Globicephala melas).
[So] Source:BMC Vet Res;12(1):229, 2016 Oct 11.
[Is] ISSN:1746-6148
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Lung cancer is the most commonly diagnosed neoplasm in humans, however this does not apply to other animal species. Living in an aquatic environment the respiratory system of cetaceans had to undergo unique adaptations in order to them to survive and cope with totally different respiratory pathogens and potentially carcinogens from those affecting humans. CASE PRESENTATION: This article discusses not only macroscopical, histopathological and immunohistochemical features of a pulmonary carcinoma with disseminated metastases in a long-finned pilot whale (Globicephala melas), as well as the immunohistochemical analysis performed on various tissues of cetaceans belonging to the genus Globicephala. On the necropsy examination of the carcass, multiple pulmonary nodules and generalised thoracic lymphadenomegaly were noted. Histologically, a malignant epithelial neoplasia was identified in the lung, thoracic lymph nodes, and adrenal gland. Immunohistochemical analysis revealed a pulmonary carcinoma. Vasculogenic mimicry and epithelial-to-mesenchymal transition phenotype, as suggested by cytomorphological and immunohistochemical characteristics, were observed. CONCLUSIONS: A diagnosis of metastatic pulmonary carcinoma was determined, which to the author's knowledge, appears to be not previously recorded in long-finned pilot whale species. This is also the first report of vasculogenic mimicry and epithelial-to-mesenchymal transition event in a spontaneous cancer from a cetacean species.
[Mh] Termos MeSH primário: Carcinoma/veterinária
Neoplasias Pulmonares/veterinária
Baleias Piloto
[Mh] Termos MeSH secundário: Animais
Carcinoma/diagnóstico
Carcinoma/patologia
Feminino
Neoplasias Pulmonares/diagnóstico
Neoplasias Pulmonares/patologia
Espanha
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[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:161013
[St] Status:MEDLINE


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[PMID]:27508496
[Au] Autor:Miralles L; Oremus M; Silva MA; Planes S; Garcia-Vazquez E
[Ad] Endereço:Department of Functional Biology, University of Oviedo, 33006, Oviedo, Spain.
[Ti] Título:Interspecific Hybridization in Pilot Whales and Asymmetric Genetic Introgression in Northern Globicephala melas under the Scenario of Global Warming.
[So] Source:PLoS One;11(8):e0160080, 2016.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Pilot whales are two cetacean species (Globicephala melas and G. macrorhynchus) whose distributions are correlated with water temperature and partially overlap in some areas like the North Atlantic Ocean. In the context of global warming, distribution range shifts are expected to occur in species affected by temperature. Consequently, a northward displacement of the tropical pilot whale G. macrorynchus is expected, eventually leading to increased secondary contact areas and opportunities for interspecific hybridization. Here, we describe genetic evidences of recurrent hybridization between pilot whales in northeast Atlantic Ocean. Based on mitochondrial DNA sequences and microsatellite loci, asymmetric introgression of G. macrorhynchus genes into G. melas was observed. For the latter species, a significant correlation was found between historical population growth rate estimates and paleotemperature oscillations. Introgressive hybridization, current temperature increases and lower genetic variation in G. melas suggest that this species could be at risk in its northern range. Under increasing environmental and human-mediated stressors in the North Atlantic Ocean, it seems recommendable to develop a conservation program for G. melas.
[Mh] Termos MeSH primário: Aquecimento Global
Hibridização Genética/genética
Baleias Piloto/genética
[Mh] Termos MeSH secundário: Animais
Oceano Atlântico
Evolução Biológica
Conservação dos Recursos Naturais
DNA Mitocondrial/química
DNA Mitocondrial/genética
Feminino
Loci Gênicos
Variação Genética
Genética Populacional
Haplótipos
Masculino
Repetições de Microssatélites/genética
Análise de Sequência de DNA
Especificidade da Espécie
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Mitochondrial)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170823
[Lr] Data última revisão:
170823
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160811
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0160080


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[PMID]:27131793
[Au] Autor:Hoydal KS; Ciesielski TM; Borrell A; Wasik A; Letcher RJ; Dam M; Jenssen BM
[Ad] Endereço:Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway; Environment Agency, Traðagøta 38, FO-165 Argir, Faroe Islands. Electronic address: katrinh@us.fo.
[Ti] Título:Relationships between concentrations of selected organohalogen contaminants and thyroid hormones and vitamins A, E and D in Faroese pilot whales.
[So] Source:Environ Res;148:386-400, 2016 07.
[Is] ISSN:1096-0953
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Pilot whales (Globicephala melas) from the Faroe Islands, North-East Atlantic, have high body concentrations of organohalogenated compounds (OHCs), such as polychlorinated biphenyls (PCBs), organochlorinated pesticides (OCPs) and brominated flame retardants (BFRs). The aim of the present study was to examine if and to what extent blood plasma and liver concentrations of several groups of these OHCs are related to concentrations of relevant nutritional and hormonal biomarkers in pilot whales. Thyroid hormones (THs: total and free thyroxine and total and free triiodothyronine) and vitamin A (retinol), D (25-hydroxyvitamin D3) and E (α-tocopherol) were analysed in plasma (n=27) and vitamin A (total vitamin A, retinol and retinyl palmitate) and E (α- and γ-tocopherol) were analysed in liver (n=37) of Faroe Island pilot whales. Correlative relationships between the biomarkers and OHC concentrations previously analysed in the same tissues in these individuals were studied. The TH concentrations in plasma were significantly higher in juveniles than in adults. Vitamin D concentrations in plasma and α- and γ-tocopherol in liver were higher in adults than in juveniles. Multivariate statistical modelling showed that the age and sex influenced the relationship between biomarkers and OHCs. Some significant positive relationships were found between OHCs and thyroid hormone concentrations in the youngest juveniles (p<0.05). In plasma of juvenile whales α-tocopherol was also positively correlated with all the OHCs (p<0.05). Only few significant correlations were found between single OHCs and retinol and vitamin D in plasma within the age groups. There were significant negative relationships between hepatic PBDE concentrations and retinol (BDE-47) and γ-tocopherol (BDE-49, -47, -100, -99, -153) in liver. The relationships between OHCs and THs or vitamins suggest that in pilot whales OHCs seem to have minor effects on TH and vitamin concentrations.
[Mh] Termos MeSH primário: Hidrocarbonetos Halogenados
Hormônios Tireóideos
Vitamina A
Vitamina D
Vitamina E
Baleias Piloto
[Mh] Termos MeSH secundário: Animais
Monitoramento Ambiental
Feminino
Hidrocarbonetos Halogenados/análise
Hidrocarbonetos Halogenados/sangue
Fígado/química
Masculino
Hormônios Tireóideos/análise
Hormônios Tireóideos/sangue
Vitamina A/análogos & derivados
Vitamina A/análise
Vitamina A/sangue
Vitamina D/análise
Vitamina D/sangue
Vitamina E/análise
Vitamina E/sangue
Poluentes Químicos da Água/análise
Poluentes Químicos da Água/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Hydrocarbons, Halogenated); 0 (Thyroid Hormones); 0 (Water Pollutants, Chemical); 11103-57-4 (Vitamin A); 1406-16-2 (Vitamin D); 1406-18-4 (Vitamin E)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171119
[Lr] Data última revisão:
171119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160502
[St] Status:MEDLINE


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[PMID]:27088853
[Au] Autor:Kulemzina AI; Proskuryakova AA; Beklemisheva VR; Lemskaya NA; Perelman PL; Graphodatsky AS
[Ad] Endereço:Institute of Molecular and Cellular Biology, SB RAS, Novosibirsk, Russia.
[Ti] Título:Comparative Chromosome Map and Heterochromatin Features of the Gray Whale Karyotype (Cetacea).
[So] Source:Cytogenet Genome Res;148(1):25-34, 2016.
[Is] ISSN:1424-859X
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Cetacean karyotypes possess exceptionally stable diploid numbers and highly conserved chromosomes. To date, only toothed whales (Odontoceti) have been analyzed by comparative chromosome painting. Here, we studied the karyotype of a representative of baleen whales, the gray whale (Eschrichtius robustus, Mysticeti), by Zoo-FISH with dromedary camel and human chromosome-specific probes. We confirmed a high degree of karyotype conservation and found an identical order of syntenic segments in both branches of cetaceans. Yet, whale chromosomes harbor variable heterochromatic regions constituting up to a third of the genome due to the presence of several types of repeats. To investigate the cause of this variability, several classes of repeated DNA sequences were mapped onto chromosomes of whale species from both Mysticeti and Odontoceti. We uncovered extensive intrapopulation variability in the size of heterochromatic blocks present in homologous chromosomes among 3 individuals of the gray whale by 2-step differential chromosome staining. We show that some of the heteromorphisms observed in the gray whale karyotype are due to distinct amplification of a complex of common cetacean repeat and heavy satellite repeat on homologous autosomes. Furthermore, we demonstrate localization of the telomeric repeat in the heterochromatin of both gray and pilot whale (Globicephala melas, Odontoceti). Heterochromatic blocks in the pilot whale represent a composite of telomeric and common repeats, while heavy satellite repeat is lacking in the toothed whale consistent with previous studies.
[Mh] Termos MeSH primário: Heterocromatina/genética
Cariótipo
Mapeamento Físico do Cromossomo
Baleias/genética
[Mh] Termos MeSH secundário: Animais
Camelus/genética
Feminino
Variação Genética/genética
Seres Humanos
Hibridização in Situ Fluorescente
Masculino
Sintenia
Telômero/genética
Baleias/classificação
Baleias Piloto/genética
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Heterochromatin)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:170111
[Lr] Data última revisão:
170111
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160419
[St] Status:MEDLINE
[do] DOI:10.1159/000445459


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[PMID]:26986319
[Au] Autor:Vester H; Hammerschmidt K; Timme M; Hallerberg S
[Ad] Endereço:Ocean Sounds, Sauoya 01, 8312 Henningsvaer, Norway.
[Ti] Título:Quantifying group specificity of animal vocalizations without specific sender information.
[So] Source:Phys Rev E;93(2):022138, 2016 Feb.
[Is] ISSN:2470-0053
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Recordings of animal vocalization can lack information about sender and context. This is often the case in studies on marine mammals or in the increasing number of automated bioacoustics monitorings. Here, we develop a framework to estimate group specificity without specific sender information. We introduce and apply a bag-of-calls-and-coefficients approach (BOCCA) to study ensembles of cepstral coefficients calculated from vocalization signals recorded from a given animal group. Comparing distributions of such ensembles of coefficients by computing relative entropies reveals group specific differences. Applying the BOCCA to ensembles of calls recorded from group of long-finned pilot whales in northern Norway, we find that differences of vocalizations within social groups of pilot whales (Globicephala melas) are significantly lower than intergroup differences.
[Mh] Termos MeSH primário: Vocalização Animal
[Mh] Termos MeSH secundário: Animais
Entropia
Baleias Piloto
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160318
[St] Status:MEDLINE
[do] DOI:10.1103/PhysRevE.93.022138


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[PMID]:26982571
[Au] Autor:Sierra E; Fernández A; Suárez-Santana C; Xuriach A; Zucca D; Bernaldo de Quirós Y; García-Álvarez N; De la Fuente J; Sacchini S; Andrada M; Díaz-Delgado J; Arbelo M
[Ti] Título:Morbillivirus and Pilot Whale Deaths, Canary Islands, Spain, 2015.
[So] Source:Emerg Infect Dis;22(4):740-2, 2016 Apr.
[Is] ISSN:1080-6059
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Infecções por Morbillivirus/epidemiologia
Infecções por Morbillivirus/veterinária
Morbillivirus/genética
Filogenia
RNA Viral/genética
Baleias Piloto/virologia
[Mh] Termos MeSH secundário: Animais
Feminino
Masculino
Tipagem Molecular
Morbillivirus/classificação
Morbillivirus/isolamento & purificação
Morbillivirus/patogenicidade
Infecções por Morbillivirus/mortalidade
Infecções por Morbillivirus/patologia
Sistema Respiratório/patologia
Sistema Respiratório/virologia
Rinite/patologia
Rinite/virologia
Espanha/epidemiologia
Estômago/patologia
Estômago/virologia
Supuração/patologia
Supuração/virologia
Análise de Sobrevida
Tonsilite/patologia
Tonsilite/virologia
[Pt] Tipo de publicação:LETTER; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (RNA, Viral)
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160317
[St] Status:MEDLINE
[do] DOI:10.3201/eid2204.150954


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[PMID]:26748005
[Au] Autor:Gajdosechova Z; Brownlow A; Cottin NT; Fernandes M; Read FL; Urgast DS; Raab A; Feldmann J; Krupp EM
[Ad] Endereço:Trace Element Speciation Laboratory, Department of Chemistry, Meston Walk, University of Aberdeen, Aberdeen AB24 3UE, UK.
[Ti] Título:Possible link between Hg and Cd accumulation in the brain of long-finned pilot whales (Globicephala melas).
[So] Source:Sci Total Environ;545-546:407-13, 2016 Mar 01.
[Is] ISSN:1879-1026
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The bioaccumulation of metals was investigated by analysis of liver, kidney, muscle and brain tissue of a pod of 21 long-finned pilot whales (Globicephala melas) of all ages stranded in Scotland, UK. The results are the first to report cadmium (Cd) passage through the blood-brain barrier of pilot whales and provide a comprehensive study of the long-term (up to 35 years) mammalian exposure to the environmental pollutants. Additionally, linear accumulation of mercury (Hg) was observed in all studied tissues, whereas for Cd this was only observed in the liver. Total Hg concentration above the upper neurochemical threshold was found in the sub-adult and adult brains and methylmercury (MeHg) of 2.2mg/kg was found in the brain of one individual. Inter-elemental analysis showed significant positive correlations of Hg with selenium (Se) and Cd with Se in all studied tissues. Furthermore, differences in the elemental concentrations in the liver and brain tissues were found between juvenile, sub-adult and adult groups. The highest concentrations of manganese, iron, zinc, Se, Hg and MeHg were noted in the livers, whereas Cd predominantly accumulated in the kidneys. High concentrations of Hg and Cd in the tissues of pilot whales presented in this study reflect ever increasing toxic stress on marine mammals.
[Mh] Termos MeSH primário: Encéfalo/metabolismo
Cádmio/metabolismo
Monitoramento Ambiental
Mercúrio/metabolismo
Poluentes Químicos da Água/metabolismo
Baleias Piloto/metabolismo
[Mh] Termos MeSH secundário: Animais
Escócia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 00BH33GNGH (Cadmium); FXS1BY2PGL (Mercury)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160110
[St] Status:MEDLINE


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[PMID]:26605917
[Au] Autor:Abecassis M; Polovina J; Baird RW; Copeland A; Drazen JC; Domokos R; Oleson E; Jia Y; Schorr GS; Webster DL; Andrews RD
[Ad] Endereço:Joint Institute for Marine and Atmospheric Research, University of Hawai'i, Honolulu, HI, United States of America.
[Ti] Título:Characterizing a Foraging Hotspot for Short-Finned Pilot Whales and Blainville's Beaked Whales Located off the West Side of Hawai'i Island by Using Tagging and Oceanographic Data.
[So] Source:PLoS One;10(11):e0142628, 2015.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Satellite tagging data for short-finned pilot whales (Globicephala macrorhynchus) and Blainville's beaked whales (Mesoplodon densirostris) were used to identify core insular foraging regions off the Kona (west) Coast of Hawai'i Island. Ship-based active acoustic surveys and oceanographic model output were used in generalized additive models (GAMs) and mixed models to characterize the oceanography of these regions and to examine relationships between whale density and the environment. The regions of highest density for pilot whales and Blainville's beaked whales were located between the 1000 and 2500 m isobaths and the 250 and 2000 m isobaths, respectively. Both species were associated with slope waters, but given the topography of the area, the horizontal distribution of beaked whales was narrower and located in shallower waters than that of pilot whales. The key oceanographic parameters characterizing the foraging regions were bathymetry, temperature at depth, and a high density of midwater micronekton scattering at 70 kHz in 400-650 m depths that likely represent the island-associated deep mesopelagic boundary community and serve as prey for the prey of the whales. Thus, our results suggest that off the Kona Coast, and potentially around other main Hawaiian Islands, the deep mesopelagic boundary community is key to a food web that supports insular cetacean populations.
[Mh] Termos MeSH primário: Migração Animal/fisiologia
Comportamento Predatório/fisiologia
Baleias Piloto/fisiologia
Baleias/fisiologia
[Mh] Termos MeSH secundário: Acústica
Animais
Mergulho
Ecolocação
Cadeia Alimentar
Hawaii
Ilhas
Oceanografia
Densidade Demográfica
Imagens de Satélites
Fatores de Tempo
Vocalização Animal/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1606
[Cu] Atualização por classe:151203
[Lr] Data última revisão:
151203
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151126
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0142628



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