Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF
Among killer whale forms, type C is a fish-eating form and is the most common in the Ross Sea. In the austral summer 2015, a study was conducted to evaluate the toxicological hazard these marine mammals face in the Antarctic ecosystem. Seven biopsy samples were collected from adult individuals (five...
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ftfrontimediafig:oai:figshare.com:article/19335203 2023-05-15T13:45:24+02:00 Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF Cristina Panti Juan Muñoz-Arnanz Letizia Marsili Simone Panigada Matteo Baini Begoña Jiménez Maria Cristina Fossi Giancarlo Lauriano 2022-03-10T06:14:53Z https://doi.org/10.3389/fmars.2022.818370.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Ecotoxicological_Characterization_of_Type_C_Killer_Whales_From_Terra_Nova_Bay_Ross_Sea_Antarctica_Molecular_Biomarkers_Legacy_and_Emerging_Persistent_Organic_Contaminants_PDF/19335203 unknown doi:10.3389/fmars.2022.818370.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Ecotoxicological_Characterization_of_Type_C_Killer_Whales_From_Terra_Nova_Bay_Ross_Sea_Antarctica_Molecular_Biomarkers_Legacy_and_Emerging_Persistent_Organic_Contaminants_PDF/19335203 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering cetaceans persistent organic pollutants (POPs) dechlorane plus (DP) gene expression qRT- PCR protein expression PPARs Dataset 2022 ftfrontimediafig https://doi.org/10.3389/fmars.2022.818370.s001 2022-03-17T00:08:56Z Among killer whale forms, type C is a fish-eating form and is the most common in the Ross Sea. In the austral summer 2015, a study was conducted to evaluate the toxicological hazard these marine mammals face in the Antarctic ecosystem. Seven biopsy samples were collected from adult individuals (five males and two females) in the surroundings of the Italian Research Station Mario Zucchelli, Terra Nova Bay, by remote dart sampling from the pack ice. The accumulation levels of persistent organic pollutants (POPs) such as legacy (DDTs, PCBs, and HCB) and emerging (PBDEs and DP) were measured. Moreover, the protein expression of cytochrome P450 (CYP1A1 and 2B) and the mRNA level variations of the peroxisome proliferator-activated receptors α and γ (PPARα-γ) and the estrogen receptor α (ERα), aryl hydrocarbon receptor (AhR), and Cyp1a were evaluated. Twenty PCB congeners, six DDTs, HCB, three HCHs, and fourteen brominated BDEs and DP-syn and anti-isomers were analyzed on freeze-dried blubber biopsy samples by GC-MS. The protein expression was evaluated by Western Blot and the mRNA levels were quantified by quantitative real-time PCR. The average abundance pattern for the contaminants was DDTs > PCBs > HCB > HCHs ≈ PBDEs >> DP. Contaminant levels resulted to be lower when compared to the existing data from the Antarctic type C killer whales from the McMurdo Sound (Ross Sea) and those reported for fish-eating killer whales worldwide. The mRNA levels of the five target genes were successfully quantified, but no statistical correlation was found with POP levels, suggesting that either the low levels of quantified POPs in blubber may not significantly affect the biological responses investigated, or that other stressors could contribute to the alterations of the molecular biomarkers. Although the results showed a lower risk related to contamination compared to more impacted areas, this study provides baseline data for the conservation of this species in an area with high ecological value, recently declared ... Dataset Antarc* Antarctic Antarctica Killer Whale McMurdo Sound Ross Sea Killer whale Frontiers: Figshare Antarctic The Antarctic Austral Ross Sea McMurdo Sound Terra Nova Bay Mario Zucchelli ENVELOPE(164.123,164.123,-74.695,-74.695) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering cetaceans persistent organic pollutants (POPs) dechlorane plus (DP) gene expression qRT- PCR protein expression PPARs |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering cetaceans persistent organic pollutants (POPs) dechlorane plus (DP) gene expression qRT- PCR protein expression PPARs Cristina Panti Juan Muñoz-Arnanz Letizia Marsili Simone Panigada Matteo Baini Begoña Jiménez Maria Cristina Fossi Giancarlo Lauriano Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering cetaceans persistent organic pollutants (POPs) dechlorane plus (DP) gene expression qRT- PCR protein expression PPARs |
description |
Among killer whale forms, type C is a fish-eating form and is the most common in the Ross Sea. In the austral summer 2015, a study was conducted to evaluate the toxicological hazard these marine mammals face in the Antarctic ecosystem. Seven biopsy samples were collected from adult individuals (five males and two females) in the surroundings of the Italian Research Station Mario Zucchelli, Terra Nova Bay, by remote dart sampling from the pack ice. The accumulation levels of persistent organic pollutants (POPs) such as legacy (DDTs, PCBs, and HCB) and emerging (PBDEs and DP) were measured. Moreover, the protein expression of cytochrome P450 (CYP1A1 and 2B) and the mRNA level variations of the peroxisome proliferator-activated receptors α and γ (PPARα-γ) and the estrogen receptor α (ERα), aryl hydrocarbon receptor (AhR), and Cyp1a were evaluated. Twenty PCB congeners, six DDTs, HCB, three HCHs, and fourteen brominated BDEs and DP-syn and anti-isomers were analyzed on freeze-dried blubber biopsy samples by GC-MS. The protein expression was evaluated by Western Blot and the mRNA levels were quantified by quantitative real-time PCR. The average abundance pattern for the contaminants was DDTs > PCBs > HCB > HCHs ≈ PBDEs >> DP. Contaminant levels resulted to be lower when compared to the existing data from the Antarctic type C killer whales from the McMurdo Sound (Ross Sea) and those reported for fish-eating killer whales worldwide. The mRNA levels of the five target genes were successfully quantified, but no statistical correlation was found with POP levels, suggesting that either the low levels of quantified POPs in blubber may not significantly affect the biological responses investigated, or that other stressors could contribute to the alterations of the molecular biomarkers. Although the results showed a lower risk related to contamination compared to more impacted areas, this study provides baseline data for the conservation of this species in an area with high ecological value, recently declared ... |
format |
Dataset |
author |
Cristina Panti Juan Muñoz-Arnanz Letizia Marsili Simone Panigada Matteo Baini Begoña Jiménez Maria Cristina Fossi Giancarlo Lauriano |
author_facet |
Cristina Panti Juan Muñoz-Arnanz Letizia Marsili Simone Panigada Matteo Baini Begoña Jiménez Maria Cristina Fossi Giancarlo Lauriano |
author_sort |
Cristina Panti |
title |
Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
title_short |
Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
title_full |
Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
title_fullStr |
Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
title_full_unstemmed |
Data_Sheet_1_Ecotoxicological Characterization of Type C Killer Whales From Terra Nova Bay (Ross Sea, Antarctica): Molecular Biomarkers, Legacy, and Emerging Persistent Organic Contaminants.PDF |
title_sort |
data_sheet_1_ecotoxicological characterization of type c killer whales from terra nova bay (ross sea, antarctica): molecular biomarkers, legacy, and emerging persistent organic contaminants.pdf |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.818370.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Ecotoxicological_Characterization_of_Type_C_Killer_Whales_From_Terra_Nova_Bay_Ross_Sea_Antarctica_Molecular_Biomarkers_Legacy_and_Emerging_Persistent_Organic_Contaminants_PDF/19335203 |
long_lat |
ENVELOPE(164.123,164.123,-74.695,-74.695) |
geographic |
Antarctic The Antarctic Austral Ross Sea McMurdo Sound Terra Nova Bay Mario Zucchelli |
geographic_facet |
Antarctic The Antarctic Austral Ross Sea McMurdo Sound Terra Nova Bay Mario Zucchelli |
genre |
Antarc* Antarctic Antarctica Killer Whale McMurdo Sound Ross Sea Killer whale |
genre_facet |
Antarc* Antarctic Antarctica Killer Whale McMurdo Sound Ross Sea Killer whale |
op_relation |
doi:10.3389/fmars.2022.818370.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Ecotoxicological_Characterization_of_Type_C_Killer_Whales_From_Terra_Nova_Bay_Ross_Sea_Antarctica_Molecular_Biomarkers_Legacy_and_Emerging_Persistent_Organic_Contaminants_PDF/19335203 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2022.818370.s001 |
_version_ |
1766223566400913408 |