| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-05-10 |
| タイトル |
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タイトル |
Sub-tropical benthic/epiphytic dinoflagellates of Aotearoa New Zealand and Rangitāhua Kermadec Islands |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Rangitāhua Kermadec Islands; Aotearoa New Zealand; Epiphytic/benthic dinoflagellates; High-throughput sequencing metabarcoding; Biotoxins |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Rhodes, Lesley L.
Smith, Kirsty F.
Murray, J. Sam
Passfield, Emillie M F
D'Archino, Roberta
Nelson, Wendy
西村, 朋宏
Thompson, Lucy
Trnski, Tom
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| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
Temperatures and temperature anomalies have been increasing in the sub-tropical regions of Aotearoa New Zealand and these changes may impact on harmful algal bloom (HAB) events. Benthic and epiphytic dinoflagellates, particularly the toxin producers, are the focus of this study as it is predicted that under future climate conditions they may produce more toxins or marine animals may become more susceptible to them. The results of past expeditions to Rangitāhua Kermadec Islands and sampling trips to Northland, Aotearoa New Zealand, are summarised and the results of the most recent trips to both regions are presented. The macroalgal habitats of the dinoflagellates are also characterised. Dinoflagellate species not previously identified in Rangitāhua include Coolia canariensis, C. palmyrensis, and C. tropicalis, all identified by DNA sequencing of the large subunit ribosomal RNA region. Gambierdiscus polynesiensis was again isolated and produced 44-methylgambierone and gambierone, and one isolate produced ciguatoxins, the cause of Ciguatera Poisoning. An Ostreopsis tairoto isolate, as analysed by the oxidative cleavage method, produced a palytoxin (PLTX)-like amine oxidation fragment, but when analysed for PLTX-like analogues using a new intact method none were detected indicating an ‘unknown’ PLTX-like compound is produced by this isolate. Isolates of O. cf. siamensis (Ostreopsis sp. 9), collected in Northland, were also analysed using the oxidative cleavage method, with the common PLTX-like amine fragment and the amide fragment corresponding to bishomoPLTX detected in all isolates. Again, the intact method indicated no detections in the isolates, again suggesting an unknown compound was being produced by these isolates. Prorocentrum hoffmannianum isolates produced okadaic acid (OA) and isoDTX-1 and P. lima isolates produced OA, DTX-1, and isoDTX-1. It is expected that new species of potentially harmful, benthic dinoflagellates will continue to be recorded in Aotearoa New Zealand and the results from Rangitāhua provide a guide to the HAB species to expect in sub-tropical Northland as the oceans continue to warm. |
|
言語 |
en |
| 書誌情報 |
en : Harmful Algae
巻 128,
p. 102494,
発行日 2023-10
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| 出版者 |
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出版者 |
Elsevier |
|
言語 |
en |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1878-1470 |
| 書誌レコードID |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1568-9883 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.hal.2023.102494 |
| 情報源 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
Local |
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関連識別子 |
23343051 |
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言語 |
ja |
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関連名称 |
水産技術研究所 環境・応用部門 環境保全部 （廿日市） |
| 関連サイト |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
URI |
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関連識別子 |
https://www.sciencedirect.com/science/article/pii/S1568988323001208 |
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言語 |
en |
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|
関連名称 |
Elsevier : Harmful Algae |
| 著者版フラグ |
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|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
Rohdes et al. Sub-tropical be thic epibenthic dinoflagellates.pdf (6 MB)
