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首页> 外文期刊>International Journal of Marine Science >Impact of Nypa Palm ( Nypa fruticans ) and Mangroves Forests on Plankton Community along Andoni River, Nigeria
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Impact of Nypa Palm ( Nypa fruticans ) and Mangroves Forests on Plankton Community along Andoni River, Nigeria

机译：Nypa Palm（Nypa Fruticans）和美洲红树林对尼日利亚河畔河畔普拉克斯群落的影响

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The invasion of mangroves forest by nypa palm is said to affect the ability of the mangroves to act as a spawning ground for fishes. It is thus hypothesized that nypa palm presence in mangrove forest will impact their fish spawning ability due to the reduction in plankton population. A total of four stations were chosen: station 1 (open water), Station 2 (nypa palm dominant), station 3 (Rhizophora and Avicennia dominant), Station 4 (Mixed forest). Results of water quality parameters include; pH (6.99 ± 0.16), temperature (28.20°C ± 0.05°C), DO (4.71 ± 0.18 mg/L), conductivity (19.52 ± 0.20 μm/s), salinity (10.76 ± 0.07 ppt) and TDS (13.45 ± 0.27 ppt). Mean values of the physico-chemical parameters were not significantly different from each other (P 0.05). In all 737 zooplankton in eleven genera were collected. Copepoda dominated with 75.1%. Similarly, 4774 phytoplankton in six taxa were collected. Bacilliarophyceae dominated with 87.45%. Shannon Weiner index across the stations was highest in station 4 (0.36) and lowest in station 1 (0.33). Margalef’s index was highest in stations 2, 3, and 4 (3.48) and lowest in station 1 (2.67). Pielou’s index of evenness was highest in station 4 (0.099) and lowest in station 1 (0.089). The composition and abundance of plankton showed no significant difference across the four stations (P 0.05). This implies that the presence of Nypa fruticans (Wurmb) did not have negative impact on the abundance and diversity of plankton.
机译：据说Nypa棕榈树林的侵袭是影响红树林充当鱼类产卵的能力。因此假设红树林植物中的Nypa Palm存在将影响其由于浮游生物的减少而受到鱼类产卵能力。选择了四个站点：站1（开放水），站2（Nypa Palm Prominant），站3（Rhizophora和Avicennia的主导），站4（混合林）。水质参数的结果包括; pH（6.99±0.16），温度（28.20°C±0.05°C），做（4.71±0.18 mg / L），电导率（19.52±0.20μm/ s），盐度（10.76±0.07 ppt）和TDS（13.45± 0.27 ppt）。物理化学参数的平均值彼此没有显着差异（P> 0.05）。收集了1177个Zooplankton，收集了11个属。糖果症以75.1％为主。同样，收集了六个分类群的4774个浮游植物。 Bacillierophycoeee占87.45％。 Shannon Weiner指数在第4（0.36）中最高，站1（0.33）。 Margalef的指数在站2,3和4（3.48）中最高，站1（2.67）中最低。 Pielou的偶数指数在第4（0.099）中最高，站1中最低（0.089）。浮游生物的组成和丰度在四个站点显示出没有显着差异（P> 0.05）。这意味着耐氮杂物（Wurmb）的存在对浮游生物的丰富和多样性没有负面影响。

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