Effect of fertilizers on distribution density and diversity of phytoplankton communities in plastic lined ponds

Ahmad Ismail, . and O'Flaherty L., . Effect of fertilizers on distribution density and diversity of phytoplankton communities in plastic lined ponds. pp. 59-75. ISSN 0126-8643

Phytoplankton communities were compared using organic and inorganic fertilization programs in 12 ponds at Jake Wolf Fishery Hatchery Peoria United States of America. A total of 67 species of phytoplankton was observed in all 12 ponds during the study. Inorganic ponds showed an algal flora typical of eutrophic conditions. Strong dominance by both eutrophic and oligotrophic species suggested a mesotrophic status for organically fertilized ponds. In general phytoplankton populations were governed by free carbon dioxide phosphate concentrations and to some extent by grazing activities of herbivores especially zooplankton. Phytoplankton densities in organically fertilized ponds did not differ significantly from those with inorganic fertilizer but zooplankton production was higher.

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Abstract

Phytoplankton communities were compared using organic and inorganic fertilization programs in 12 ponds at Jake Wolf Fishery Hatchery Peoria United States of America. A total of 67 species of phytoplankton was observed in all 12 ponds during the study. Inorganic ponds showed an algal flora typical of eutrophic conditions. Strong dominance by both eutrophic and oligotrophic species suggested a mesotrophic status for organically fertilized ponds. In general phytoplankton populations were governed by free carbon dioxide phosphate concentrations and to some extent by grazing activities of herbivores especially zooplankton. Phytoplankton densities in organically fertilized ponds did not differ significantly from those with inorganic fertilizer but zooplankton production was higher.

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Item Type:	Article
Additional Information:	11 ill.; 3 tables; 24 ref. Summary (En Ms)
AGROVOC Term:	FITOPLANCTON
AGROVOC Term:	ABONOS INORGANICOS
AGROVOC Term:	ABONOS ORGANICOS
AGROVOC Term:	ESTANQUES/ ESPECIES
AGROVOC Term:	DENSIDAD DE LA POBLACION
AGROVOC Term:	ZOOPLANCTON
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:55
URI:	http://webagris.upm.edu.my/id/eprint/19974

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