Algal community and pollution indicators for the assessment of water quality of Ismailia canal, Egypt

Elshobary, Mostafa E.; Essa, Dorya; Attiah, Abdullah Muhammad; Salem, Zenhom E.; Qi, Xianghui

doi:10.1007/s00477-020-01809-w

Cited by 26 publications

(19 citation statements)

References 37 publications

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“…be due to the higher nutrient content of MW, especially nitrate concentration and N/P ratio, which was 10 and 33 times higher compared to EH, respectively. This finding agreed with Elshobary, Abo-shady, et al (2019) and Elshobary, Essa, et al (2020), who demonstrated that nitrate positively correlates with the phytoplankton community. Lachmann et al (2019) reported that NO3…”

Section: Ta B L E 4 (Continued)supporting

confidence: 92%

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

et al. 2020

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This study aimed to evaluate appropriate water sources to improve Solea aegyptiaca aquaculture from larval to the juvenile stage using two water sources (Eastern Harbour (EH) and MaxWell (MW)). Firstly, four microalgae's nutritional value (Nannochloropsis salina, N. oculata, Chlorella salina and Tetraselmis chuii) was assessed in both water sources. MW of high nitrate content enhanced the algal biomass and biochemical composition of all species compared to EH. MW-N. salina showed the highest growth and biochemical contents among the investigated species and yielded Artemia franciscana with a considerable amount of arachidonic acid (ARA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to EH. Secondly, Artemia enriched MW-N salina was used to improve S. aegyptiaca quality in both water sources from 10-48 days posthatch at a density of 15 larvae L −1. The MW-S. aegyptiaca exhibited a significant increase in morphometric parameters, albino percentages and recorded the highest ARA, EPA and DHA content (35.9, 6.1 and 15.9 µg g −1 , respectively) compared to that reared on EH. The study reports evidence of albinism of MW-S. aegyptiaca due to high dietary and ARA content. Overall, the seawater source has a significant impact on the whole food chain quality from microalgae to S. aegyptiaca.

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Section: Ta B L E 4 (Continued)supporting

confidence: 92%

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

et al. 2020

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“…The highest silicate values were observed in winter and reduced in summer; this could be due to the high density of phytoplankton in summer and its high silicate consumption for their biological activity and ourishing during summer (Sankar et al 2010). These results agreed with (Habib et al 1997;Elshobary et al 2020), who showed that silicate concentration in winter was higher than in summer during their studies.…”

Section: Hydrologysupporting

confidence: 92%

“…High TDS values during the winter season are attributed to the rains that carry soil and other organic matter from the wetlands to the lake (Sharma and Tiwari 2018). The same nding was observed in the Ismailia canal connected with the lake in 2018 (Elshobary et al 2020). Ali et al (2020) demonstrated that TDS in winter exceeded spring, summer and autumn values, respectively.…”

Section: Hydrologysupporting

confidence: 71%

“…Knowledge about different physico-chemical parameters provides a biological activity to assess the ecological quality of an ecosystem. Physicochemical factors play a crucial role in guiding biodiversity in the aquatic environment, contributing to a shift in the diversity and population of aquatic biota (Ramírez et al 2005;Elshobary et al 2020). Fig 2 displays the average value of six physicochemical parameters for the twenty locations in Temsah Lake.…”

Section: Hydrologymentioning

confidence: 99%

“…This nding is slightly lower than that reported in the recent survey in Temsah lake of Gaballa (2014), who found 116 different genera during 2012. These differences may be associated with spatial and temporal variations in the physiochemical and biological parameters of water bodies (Zhang et al 2011;Demir et al 2014;Napiórkowska-Krzebietke and Hutorowicz 2014;Elshobary et al 2020). The low number of species recorded in the lake can generally be attributed to the persistent discharge of wastewater, leading to increased nutrient supplements hence decreasing predominant species.…”

Section: Phytoplankton Composition and Percentage Frequencies Of Phytmentioning

confidence: 99%

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Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Elshobary

Attiah²,

et al. 2021

Preprint

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Relative effects of spatio-seasonal variations on the quantitative and qualitative status of phytoplankton in 20 sampling locations of Temsah Lake were examined during winter and summer 2018. The study reveals that the population structure consisted of 105 species from 69 genera, with an annual average of 924155 cell/L. Bacillariophyceae formed the most dominant group with 42.45% of total phytoplankton with an average of 372379 cell/L. Navicula creptocephala was the most abundant species representing 19.16% of total diatoms and 7.78% of the whole standing crop with an annual average of 376879 cell/L. The highest phytoplankton abundance was in the Northern locations. Phytoplankton density showed a negative correlation of pH, temperature and TDS and positively correlated with nutrient content such as nitrate and silicate. In general, summer showed high indices value compared to winter and the diversity index in the current study ranged in moderate pollution range. The polluted state of the aquatic ecosystem in El-Temsah Lake during summer is comparatively higher than winter during the study period. Palmer’s and diversity indices showed that Northern sites were the most flourishing and polluted sites. The study also recorded a number of tolerate algae (13 genera and 8 species), which can be used as an indicator for different degrees of organic pollution. Genus and species Palmer’s Index scores of the northern site were in the range of ≥20 during summer, indicating most of the sampling locations showed probable to confirmed high level of organic pollution.

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Algae for Aquaculture: Recent Technological Applications

Elshobary,

Ashour

2023

Value-Added Products From Algae

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Algal community and pollution indicators for the assessment of water quality of Ismailia canal, Egypt

Cited by 26 publications

References 37 publications

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

Comparative study on growth, survival and pigmentation ofSolea aegyptiacalarvae by using four different microalgal species with emphasize on water quality and nutritional value

Phytoplankton population as alarming warning bioindicator of water pollution in El-Temsah Lake, Egypt

Algae for Aquaculture: Recent Technological Applications

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