scholarly journals A Cryptic Marine Ciliate Feeds on Progametes of Noctiluca scintillans

Protist ◽  
2017 ◽  
Vol 168 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Shuwen Zhang ◽  
Kit Yu Karen Chan ◽  
Zhuo Shen ◽  
Shunyan Cheung ◽  
Michael R. Landry ◽  
...  
2007 ◽  
Vol 9 (3) ◽  
pp. 236-246
Author(s):  
P. D. Magesh ◽  
J. Santanakumar ◽  
P. Venkateshwaran ◽  
A. K. Abdul Nazar ◽  
R. Venkatesan ◽  
...  

1998 ◽  
Vol 43 (3) ◽  
pp. 204-208 ◽  
Author(s):  
Spartaco Puntoni ◽  
Roberto Marangoni ◽  
Domenico Gioffré ◽  
Giuliano Colombetti
Keyword(s):  

Author(s):  
Xiaozhong Hu ◽  
Weibo Song ◽  
Alan Warren

The cortical development of the marine hypotrichous ciliate Holosticha warreni, found in coastal waters near Qingdao, China, was investigated using the protargol impregnation method. In the proter, disorganization of the parental adoral zone of membranelles and undulating membranes contributes to the formation of its oral primordia which replace the parental buccal apparatus completely. Cirral anlagen in both division parts derive from the breaking of primary primordia. Most midventral cirri join in the formation of these primordia which occurs de novo separately from the oral primordia. Each of the 11 to 13 oblique streaks divides into three segments (new cirri) while the last two anlagen produce four each. Two frontoterminal cirri derive from the posteriormost anlage. The marginal rows develop from the parental structure. The generation mode of dorsal kineties is of the ‘one group type’ without forming caudal cirri.


Harmful Algae ◽  
2007 ◽  
Vol 6 (3) ◽  
pp. 317-320 ◽  
Author(s):  
Laura Escalera ◽  
Yolanda Pazos ◽  
Ángeles Moroño ◽  
Beatriz Reguera

2021 ◽  
Author(s):  
Sergey Piontkovski ◽  
Khalid Al Hashmi ◽  
Yuliya Zagorodnaya ◽  
Irina Serikova ◽  
Vladislav Evstigneev ◽  
...  

<p>Seasonal variability is a powerful component of the spatio-temporal dynamics of plankton communities, especially in the regions with oxygen-depleted waters. The Arabian Sea and the Black Sea are typical representatives of these regions. In both, the dinoflagellate Noctiluca scintillans (Macartney) Kofoid & Swezy, 1921, is one of the abundant plankton species which forms algal blooms. Sampling on coastal stations in the upper mixed layer by the plankton nets with the 120-140 µm mesh size was carried out in 2004-2010. Monthly data were averaged over years. A comparison of seasonal patterns of Noctiluca abundance pointed to the persistence of a bimodal seasonal cycle in both regions. The major peak was observed during spring in the Black Sea and during the winter (Northeast) monsoon in the Arabian Sea. The timing of the second (minor) peak was different over regions as well. This peak was modulated by advection of seasonally fluctuating velocity of coastal currents which transport waters enriched by nutrients by coastal upwelling. The abundance of Noctiluca of the major peak (with the concentration around 1.5*10<sup>6</sup> cells m<sup>-3</sup>) was from one to two orders as much high in the western Arabian Sea compared to the northern Black Sea. The remotely sensed chlorophyll-a concentration during the time of the major seasonal peak exhibited a fivefold difference over these regions. In terms of nutrient<sub></sub>concentration in the upper mixed layer (in particular, nitrates and silicates), a difference of about one order of magnitude was observed.</p>


2019 ◽  
Vol 510 ◽  
pp. 10-14 ◽  
Author(s):  
Saho Kitatsuji ◽  
Hitomi Yamaguchi ◽  
Toshimasa Asahi ◽  
Kazuhiko Ichimi ◽  
Goh Onitsuka ◽  
...  

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