Morphology and distribution of Pronoctiluca (Dinoflagellata, incertae sedis) in the Pacific Ocean |
| |
Authors: | GMEZ Fernando |
| |
Institution: | Department of Biological Oceanography, Institute of Oceanography, University of São Paulo, São Paulo, SP 05508-120, Brazil |
| |
Abstract: | The diversity and distribution of Pronoctiluca, amarine dinoflagellate of enigmatic systematic position,was studied in the vicinity of the Kuroshio andOyashio Currents, the Philippines, Celebes, Sulu and South China Seas, western and central equatorial and southeast Pacific Ocean. The abundance of Pronoctiluca was higher, with a wide vertical distribution, in eutrophic temperate regions, whereas it was nearly absent in surface waters of oligotrophic tropical regions. Most of the specimens corresponded to P. spinifera. Pronoctiluca pelagica, covered by hyaline layers and with no flagella, is considered as an encysted form. The bipartition was only observed in P. acuta-P. spinifera forms, that together with the occurrence of intermediate forms between P. spinifera and P. pelagica suggest that they may correspond to developmental stages of a single species. Pronoctiluca is essential to understanding the evolutionary history of the alveolates. |
| |
Keywords: | Alveolata|basal dinoflagellates|Dinophyceae|heterotrophic flagellate|Noctilucales|plankton |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|