Response of periphyton community to salinity gradient in tropical estuary, Niger Delta

• Autorzy: Chindah A C
• Języki publikacji: EN

Abstrakty

EN

Studies on periphyton of Crinium plants were conducted in the estuary (New Calabar River) of the Niger Delta at 4 different locations during the two major seasons (rainy and dry season). Periphyton samples were collected from an area (of 2 cm by 2 cm) in 3 sets of 3 replicates for biomasses (AFDW-ash free dry weight and chlorophyll a) and for numerical abundance. Physicochemical parameters such as temperature, pH, conductivity, hardness and salinity were also collected from the respective stations. Temperature was considerably uniform but conductivity, hardness and salinity showed increasing graduation in concentration down stream. A total of 110 periphyton species were recorded with diatoms constituting 54% of the occurring species followed by Euglenophyta (21%), Chlorophyta (17%), Cyanophyceae (6%) and Rhodophyta (1.8%). There were strong similarities in the values obtained for species richness, periphyton abundance, and chlorophyll a, AFDW (ash free dry weight) for wet and dry season indicating no seasonal influence. However, the periphyton abundance, chlorophyll a and ash free dry weight distribution suggested strongly influence by the salinity gradient. The values for periphyton abundance ranged from 2621 (±168.5) to 3452.8 (±715.9) indiv. cm⁻². In addition, the combined mean values for chlorophyll a, and ash free dry weight in the system were 8.443 ± 2.51 mg cm⁻² and 0.32 ± 0.07 g cm⁻², respectively.

Słowa kluczowe

EN

Crinium natans; New Calabar; periphyton community; Niger Delta; macrophyte; salinity gradient; plant

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2004
• Tom: 52
• Numer: 1
• Opis fizyczny: p.83-89,fig.,ref.

Twórcy

autor

Chindah A C

• Rivers State University of Science and Technology, PMB 5050, PortHarcourt, Rivers State, Nigeria

Bibliografia

• Aizaki M. 1978 – Seasonal changes in standing crop and production of periphyton in the Tamagawa River – Japanese J. of Ecology, 28: 123–134.
• Ajayi S., Osibanjo O. 1981 – Pollution studies on Nigeria rivers, water quality of some Nigerian Rivers. II Water quality of some Nigerian rivers – Environ. Pollut. (Series B) 2: 87–95.
• APHA 1980 – Standard Methods for the Examination of Water and Waste Water – Washington, American Public Health Association, 1134 pp.
• Chindah A. C., Hart A. I., Uzoma A. I. 1999 – Periphyton associated with submerged macrophytes (Crinium natans) in in the upper reaches of the New Calabar River Niger Delta – J. of Agric. Biotec. and Environment, 1 (2): 37–46.
• Chindah A. C. 1998 – The effect of industrial activities on the periphyton community at the upper reaches of New Calabar River, Niger Delta, Nigeria – Wat. Res. 32 (4): 1137–1143.
• Chindah A. C., Amadi A., Braide S. A., Osuamkpe A. 1993 – Investigations into the Epipelic Algal Community of Elechi Creek at Bonny Estuary, Niger Delta, Nigeria – Internat. J. Biochemiphysics, 2 (1): 119–124.
• Chindah A. C. (in press) – The physicochemistry plankton and periphyton community of Elele Alimini swamp forest stream Rivers State, Nigeria – Acta Hydrobiol.
• Chindah A. C., Amadi A. 1993 – Characteristic macroalgae and its biomass in the Bonny/New Calabar river systems of Niger Delta, Nigeria – Intern. J. Biochemiphysics, 2 (1&2): 103–126.
• Chindah A. C., Braide S. A. 2003 – Epipelic algal of tropical estuary: case of stable and invariable seasonally community – Pol. J. Ecol. 50: 91–99.
• Chindah A. C., Pudo J. 1991 – A preliminary checklist of algae found in plankton of Bonny river in Niger Delta, Nigeria – Frag. Flor. Geobot. 36 (1): 112–126.
• Durand J. R., Leveque C. 1980 – Flore et faune aqyatuqyes de l’ Afrque – Cah. off. Rech. Sci. Tech. Outre–Mer. I: 5–46.
• Erondu E. S., Chindah A. C. 1991 – Physicochemical and Phytoplankton Changes in a tidal Fresh Water Station of the New Calabar River, South Eastern, Nigeria – Environ. and Ecol. 3: 561–570.
• Fisher S. G., Gray L. J., Grimm N. B. S., Busch D. E. 1982 – Temporal succession in a desert stream ecosystem following flash flooding – Ecological Monographs, 52 (1): 903–1010.
• Fisher S. G., Sumner S. T. 1976 – Fort River ecosystem: productivity of the periphyton component – NTIS PB, pp. 258–772.
• Hill A. R. 1981 – Stream phosphorus exports from watersheds with contrasting land uses in southern Ontario – Water Resources Bulletin, 17: 627–634.
• Lindstorm E. A., Traaen T. S. 1984 – Influence of current velocity on periphyton distribution and succession in a Norwegian soft water system – Ver. Internat. Verein. Limnologie, 22: 1965–1972.
• Mills F. W. 1932 – Some diatoms from the Warri, Southern Nigeria – J. Royal Microsc. 583: 382–395.
• Moore J. W. 1977 – Some factors effecting algal densities in a eutrophic farmland stream – Oecologia, 29: 257–267.
• Neilsen G. H., MacKenzie A. F. 1977 – Relationships between soluble and sediment nutrient losses, land use and types of soil in agricultural watersheds – Water Pollution Research Canada, 12: 121–134.
• Nwankwo D. I. 1991 – Periphyton algae on fishfenses ”ACADJA” in a tropical open lagoon – Intern. J. of Ecology and Environmental Sciences, 17: 1–10.
• Nwankwo D. I., Akinsoji A. 1988 – Periphyton algae of a eutrophic creek and their possible use as indicator. Nigerian J. of Botany, 1: 96–105.
• Nwankwo D. I., Onitiri A. O. 1992 – Periphyton on submerged aquatic macrophytes (Hornwort and Bladderwort) in Epe Lagoon – J. Agric. Sci. Technol. 2 (2): 135–141.
• Patrick R., Reimer C. 1966 – The diatoms of the United States exclusive Alaska and Hawaii I. Fragillariaceae, Eunoticeae, Achnanthaceae, Naviculaceae – Philadelphia, Livingston Publ. Com. 688 pp.
• Peckarsky B. L. 1986 – Colonisation of natural substrates by stream benthos – Canadian J. of Fisheries and Aquatic Sciences, 43: 700–709.
• Pudo J. 1989 – Ekologiczne skutki zanieczyszczenia ropą naftową w południowej Nigerii [South Nigeria – ecological consequence of crude oil water pollution] – Gosp. Wodna 4, 85–87 (in Polish).
• Pudo J., Fubara D. M. J. 1988 – Studies on Periphyton Algae I in the Petroleum Oil Spillage Area of the Niger Delta aquatic System – Verh. Int. Ver. Limnol. 23: 2259–2261.
• Reiter M. A., Carlson R. E. 1986 – Current velocity in streams and composition of benthic algal mats – Canadian J. of Fisheries and Aquatic Sciences, 43: 1156–1162.
• Rounick J. S., Gregory S. V. 1981 – Temporal changes in periphyton standing crop during an unusually dry winter in streams of the Western Cascades, Oregon – Hydrobiolgia, 83: 197–205.
• Research Planning Institute (RPI) Colombia, South Carolina, USA 1985 – Environmental Baseline Studies for Establishment of Control Criteria and Standards against Petroleum Related Pollution in Nigeria, RPI/R/84/4/15–7.
• Sieminska J. 1964 – Chrysophyta II. Bacillariophyceae. Okrzemki (In: Flora Słodkowodna Polski [Freshwater Flora of Poland] 6, Ed. K. Starmach) – PWN, Warszawa, 610 pp.
• Starmach K. 1966 – Cyanophyta–Sinice, Glaucophyta–Glaukifity (In: Flora Słodkowodna Polski [Freshwater Flora of Poland] vol. 2, Ed. K. Starmach) – PWN, Warszawa, 808 pp.
• Tett P., Gallegos C., Kelly M. G., Hornberger G. M., Cosby G. J. 1978 – Relationships among substrates, flow and benthic microalgal pigment density in Mechums River, Vaginia – Limnol. and Oceanography, 3 (4): 785–797.
• Whyte S. A. 1976 – Distribution, tropic relationships and breeding habits of the fish population in a tropical lake basin (Lake Bosuwtwi), Nigeria – Ghana J. Zoology, London 177: 25–56.