First record of wild polyps of Chrysaora pacifica (Goette, 1886) (Scyphozoa, Cnidaria)
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- Toyokawa Masaya
- National Research Institute of Fisheries Science, Fisheries Research Agency
書誌事項
- タイトル別名
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- First record of wild polyps of <i>Chrysaora pacifica</i> (Goette, 1886) (Scyphozoa, Cnidaria)
- 公開日
- 2011
- DOI
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- 10.3800/pbr.6.175
- 公開者
- 日本プランクトン学会、日本ベントス学会
この論文をさがす
説明
Polyps of Chrysaora pacifica were found on sediments sampled from the sea bottom in Sagami Bay near the mouth of the Sagami River on 26 June 2009; they were identified from released ephyrae in the laboratory. This is the first record of wild polyps of C. pacifica. Polyps and/or podocysts were found from five among the six stations. They were found on 25 shells (2.5–9.2 cm in width, 1.6–5.3 cm in height) and on 22 stones (1.5–8.0 cm in width, 1.3–5.0 cm in height). The shells with polyps were mostly from the dead clam Meretrix lamarckii. Polyps and podocysts were mostly found on the concave surface of bivalve shells, or in hollows of the stones. The number of polyps and podocysts per shell ranged between 0–52 (median = 9) and 0–328 (median = 28); and those per stone were 1–12 (median = 2) and 0–26 (median = 1.5). The number, especially of podocysts, was much greater on shells than on stones. On a convex substrate they can easily be removed by being hit with other substrates during dredging and washing, and such a process may also occur in natural conditions. They were induced to strobilate and release ephyrae by decreasing the temperature from 22–23°C to 5–10°C.
収録刊行物
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- Plankton and Benthos Research
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Plankton and Benthos Research 6 (3), 175-177, 2011
日本プランクトン学会、日本ベントス学会
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詳細情報 詳細情報について
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- CRID
- 1390282680241690496
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- NII論文ID
- 10029655659
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- NII書誌ID
- AA12130745
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- ISSN
- 1882627X
- 18808247
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- NDL書誌ID
- 11238602
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
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- 使用不可
