E3S Web Conf.
Volume 364, 2023The 3ʳᵈ Edition of Oriental Days for the Environment “Green Lab. Solution for Sustainable Development” (JOE3)
|Number of page(s)||6|
|Section||Natural & Environmental Resources|
|Published online||23 January 2023|
Morphology and distribution of some marine diatoms of the genus Rhizosolenia in the lagoon of Nador (North East of Morroco)
1 OLMAN- BGPE, Nador Multidisciplinary Faculty (FPN), Nador, Mohammed 1st University, Morocco.
2 Water and Environment Management, Department of Civil Engineering and Environment, National School of Applied Sciences Al Hoceima, Abdelmalek Essaadi University, 90060 Tangier, Morocco.
* Corresponding author: Ouassila.firstname.lastname@example.org
This work aims to study the distribution and quantification of the genus Rhizosolenia known for its abundance and diversity among planktonic diatoms at 9 sampling stations in the Nador lagoon and during 2 seasons (spring and summer 2018). The diatoms collected in the 9 sampling stations were identified morphologically using an inverted optical microscope. A total of 10 species of the genus Rhizosolenia have been listed including: Rhizosolenia bushsolei, R alata forma alata, R bergonii, R cochlea, R hyalina, R imbricata, R setigera, R bushsolei, Rhizosolenia sp and R styliformis. The quantitative analysis of the species collected shows that the maximum cell density was recorded respectively at stations 9 and 7 located in the center of the Nador lagoon, with values of 21680 Cell/l and 15710 Cell/l. However, the minimum cell density was recorded at station 5 corresponding to Oued Bou Areg located at the edge of the lagoon with a value of 5120 Cell/l.
Key words: Morphology / distribution / marine diatoms / genus Rhizosolenia / lagoon of Nador / North East of Morocco
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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