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Dinoflagellates from Hainan Island : Potential threat for transporting harmful algae from Hainan to Japan
https://doi.org/10.24795/24201k081
https://doi.org/10.24795/24201k0812b9540fd-c5be-4887-8e76-05e566d230c0
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| Item type | 学位論文 / Thesis or Dissertati(1) | |||||||||
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| 公開日 | 2017-03-27 | |||||||||
| タイトル | ||||||||||
| タイトル | Dinoflagellates from Hainan Island : Potential threat for transporting harmful algae from Hainan to Japan | |||||||||
| 言語 | en | |||||||||
| その他のタイトル | ||||||||||
| その他のタイトル | 海南島の渦鞭毛藻類：海南から日本への有害藻類越境輸送の潜在的脅威 | |||||||||
| 言語 | ja | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||
| 資源タイプ | doctoral thesis | |||||||||
| ID登録 | ||||||||||
| ID登録 | 10.24795/24201k081 | |||||||||
| ID登録タイプ | JaLC | |||||||||
| 著者 |
Yin, Anqi
× Yin, Anqi
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| 学位名 | ||||||||||
| 言語 | ja | |||||||||
| 学位名 | 博士（環境科学） | |||||||||
| 学位授与機関 | ||||||||||
| 言語 | ja | |||||||||
| 学位授与機関名 | 滋賀県立大学 | |||||||||
| 学位授与年月日 | ||||||||||
| 学位授与年月日 | 2015-03-23 | |||||||||
| 学位授与番号 | ||||||||||
| 学位授与番号 | 甲第81号 | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 環課第44号 | |||||||||
| 言語 | ja | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Coastal areas in Hainan Island, China, are important for commercial fisheries, but few studies on harmful algal bloom (HAB) have been performed to date. In south part of Japan, large quantities of the seedlings for greater amberjack farming are imported from Hainan Island every year since 1988. In this study, the dinoflagellate species were identified and described from the plankton samples around Hainan Island to make a list of the species occurred including HAB species for providing against potential threat of HAB events. Additionally, phytoplankton communities between Hainan Island and the two bays in south part of Japan were determined from the plankton and the sediment samples using both microscopic and molecular analyses, to evaluate a possibility for artificial transportation of tropical HAB species to Japan. A total of 37 dinoflagellate species in 11 genera from nine families were identified from 11 coastal stations around Hainan Island. Eight toxic and four red tide-forming species were found at most stations, except for Station (St.) 4. These species included the five genera of Ceratium, Dinophysis, Lingulodinium, Prorocentrum, and Protoperidium. Ceratium furca, a red tide-forming species, and Prorocentrum rhathymum, a ciguatera fish poisoning species, were occurred in large numbers at St. 7 and 8, respectively, both of which are near fish farms or fishing villages. Prorocentrum lima and Dinophysis acuminata are diarrhetic shellfish poisoning species and Lingulodinium polyedrum is a yessotoxin species, which appeared only at St. 5, near the location of a fish farm and seafood markets. These results suggest potential threats of harmful algal blooms around Hainan Island that could cause fish, shellfish, and human poisoning. A total of 27 dinoflagellate species in eight genera from seven families were identified from the plankton samples in Kagoshima Bay and Uranouchi Bay, south Japan. Species from the Kareniaceae were found only in south Japan, while species from the Gonyaulacaceae, Peridiniaceae, and Heterocapsaceae in Hainan Island. Phytoplankton from the sediment samples in Hainan Island consists of 81 species from seven phyla. Whereas in Kagoshima Bay, it consists of 61 species from six phyla. Species from the Bacillariophyta were found most frequently in both Hainan Island and Kagoshima Bay. Species from the Cryptophyta and Phaeophyta were found only in Hainan Island, while species from the Haptophyta in Kagoshima Bay. Thirteen dinoflagellate species including six harmful species were found in both Hainan Island and south Japan from the plankton samples, and most species were recorded from Japan recently, while 35 phytoplankton species including one harmful species were found in both Hainan Island and Kagoshima Bay from the sediment samples, being more than 50% of species which occurred in Kagoshima Bay, and red tide-forming species Heterosigma carterae recorded from Japan since 1994, after the importation of fish fry, indicated the invasion of tropical species, including harmful ones, from Hainan Island to Japan by the global warming through the current systems and/or by artificial transportation of fish fry may be plausible. This study suggest that, Hainan Island potentially faces the danger of HABs, and the invasion of the tropical harmful species to Japan may be plausible. |
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| 言語 | en | |||||||||
| 内容記述 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | 中国海南省は近年、漁業の発展がめざましいが，有害藻類ブルーム(HAB)に関する研究は未だほとんど存在しない。一方、本邦においては養殖用のカンパチ幼魚が毎年、海南省から輸入されている。本研究は、海南省周辺海域におけるHABイベントに備えるため、プランクトン試料から渦鞭毛藻類を同定し、その出現種リストを作成することを目的とした。加えて、海南省からカンパチ幼魚と共に熱帯産の藻類種が運ばれている可能性を確かめるため、鹿児島県と高知県の港湾からプランクトンと堆積物試料を採取し、顕微鏡観察と遺伝子解析によって出現する植物プランクトン組成を海南省のそれらと比較した。海南省からは全部で37種の渦鞭毛藻類が同定された。このうち8種が有毒種であり、4種が赤潮形成種であった｡鹿児島あるいは高知と海南省の両方から同定された種は全部で13種に上り、このうち6種が有害種であった。これらの結果は、海南省におけるHABの潜在的な危険と本邦への熱帯産HAB種の人為的な移入の可能性を示唆した。 | |||||||||
| 言語 | ja | |||||||||
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| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 書誌情報 |
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