+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Variability in surface water chemistry and phytoplankton biomass in two tropical, tidally dominated mangrove creeks

Variability in surface water chemistry and phytoplankton biomass in two tropical, tidally dominated mangrove creeks

Marine & Freshwater Research 50(5): 451-457

Surface water concentrations of dissolved nutrients and phytoplankton biomass (as chlorophyll a) were examined monthly in relation to physicochemical characteristics and rainfall for 30 months in two tropical, tidally dominated mangrove creeks in north Queensland, Australia. Dissolved nutrient concentrations and phytoplankton biomass peaked during summer with no or little significant change throughout the rest of the year. Dissolved nitrogen and phosphorus concentrations correlated inversely with salinity changes, implying that fresh water and suspended material from the watershed were the main source of dissolved nutrients. The mean dissolved inorganic N:P ratio in each creek (Control Creek 58:1, Sandfly Creek 26:1) was greater than the Redfield ratio (16:1), suggesting excess nitrogen relative to phosphorus. Variability in phytoplankton biomass did not correlate significantly with dissolved nitrogen or phosphorus concentrations, but did relate to rainfall patterns and changes in dissolved oxygen concentrations. These results suggest that pelagic conditions in these mangrove creeks are constant all year round, except during the summer wet season.

(PDF emailed within 0-6 h: $19.90)

Accession: 003330358

Download citation: RISBibTeXText

DOI: 10.1071/mf98155

Related references

The influence of fish cage aquaculture on pelagic carbon flow and water chemistry in tidally dominated mangrove estuaries of peninsular Malaysia. Marine Environmental Research 55(4): 313-333, 2003

Seasonal variations in concentrations and fluxes of dissolved organic and inorganic materials in a tropical tidally dominated mangrove waterway. Marine Ecology Progress Series 50(1-2): 151-160, 1988

The impact of shrimp pond effluent on water quality and phytoplankton biomass in a tropical mangrove estuary. Marine Pollution Bulletin 40(11): 947-951, November, 2000

Spatial and temporal variations in water column nutrient concentrations in a tidally dominated mangrove creek: Chwaka Bay, Zanzibar. Ambio 24(7/8): 482-486, 1995

Phytoplankton biomass and water chemistry in two high-mountain tropical lakes in Central Mexico. Arctic, Antarctic, and Alpine Research 36(3): 342-346, 2004

Hydrologic variability, water chemistry, and phytoplankton biomass in a large floodplain of the Sacramento River, CA, U.S.A. Hydrobiologia 513: 129-139, 2004

The effect of changing water chemistry on rates of manganese oxidation in surface sediments of a temperate saltmarsh and a tropical mangrove estuary. Estuarine Coastal & Shelf Science 38(2): 119-135, 1994

Water circulation and coastal trapping of brackish water in a tropical mangrove-dominated bay in Kenya. Limnology & Oceanography 41(1): 169-176, 1996

Tidally driven export of dissolved organic carbon, total mercury, and methylmercury from a mangrove-dominated estuary. Environmental Science & Technology 46(3): 1371-1378, 2012

Variability of phytoplankton and mesozooplankton biomass in the subtropical and tropical Atlantic Ocean. ine Ecology Progress Series ch 26; 250: 125-144, 2003

Nutrient and phytoplankton dynamics in mangrove tidal creeks of the Indus River Delta. Thompson, M -F, Tirmizi, N M The Arabian Sea: Living marine resources and the environment 395-406, 1995

The distribution and temporal variability of phytoplankton biomass in the tropical waters of the Atlantic Ocean. Marine Science Communications, 56: 399-422, 1979

Nutrient and phytoplankton dynamics in two mangrove tidal creeks of the Indus River delta, Pakistan. Marine Ecology Progress Series 157(0): 13-19, Oct 16, 1997

Residual Fluxes Of Suspended Sediment In A Tidally Dominated Tropical Estuary. Continental Shelf Research, 2013