Hydrology, plankton, and nutrients in Pelorus Sound, New Zealand, July 1981 and May 1982
- 1 June 1987
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Marine and Freshwater Research
- Vol. 21 (2), 223-233
- https://doi.org/10.1080/00288330.1987.9516218
Abstract
The distribution of temperature, salinity, dissolved inorganic nutrients, and chlorophyll a is described along a transect in Pelorus Sound, as are phytoplankton populations and zoo‐plankton biomass. River water contributed dissolved inorganic nutrients to Pelorus Sound; silicon was a conservative property. Pelorus Sound was a sink, and the open sea a source for nitrate‐nitrogen. Havelock Arm and Cook Strait water appeared to be a source for ammonium‐nitrogen. Winter cooling at the head of Kenepuru Sound produced high‐density water which sank at the confluence with Pelorus Sound; this is a mechanism (in addition to internal tides) whereby low‐salinity high‐nutrient water is mixed downwards. Phytoplankton biomass was dominated by diatoms in July 1981. Zoo‐plankton biomass in outer Pelorus Sound in May 1982 was dominated by Amelia aurita. The distribution of chlorophyll a is discussed in relation to the input of river water, inorganic nutrients, and variations in zooplankton grazing pressure. The proposition that more mussel farms would result in long‐term food limitation of cultured mussel production is discussed.Keywords
This publication has 20 references indexed in Scilit:
- Factors controlling summer phytoplankton production in greater Cook Strait, New ZealandNew Zealand Journal of Marine and Freshwater Research, 1986
- A review of the physical oceanography of the seas around New Zealand — 1982New Zealand Journal of Marine and Freshwater Research, 1985
- Winter phytoplankton and microzooplankton populations off the coast of Westland, New Zealand, 1979New Zealand Journal of Marine and Freshwater Research, 1983
- Temporal variability of the waters of Pelorus Sound, South Island, New ZealandNew Zealand Journal of Marine and Freshwater Research, 1982
- A vertical free fall plankton net with no mouth obstructionsLimnology and Oceanography, 1982
- Distribution of Planktonic diatoms in Pelorus sound, South Island, New ZealandNew Zealand Journal of Marine and Freshwater Research, 1977
- Broad classification of New Zealand inlets with emphasis on residence timesNew Zealand Journal of Marine and Freshwater Research, 1976
- Tidal variability of flow and water properties in pelorous sound, South Island, New ZealandNew Zealand Journal of Marine and Freshwater Research, 1976
- Seston transport and deposition in Pelorus sound, south Island, New ZealandNew Zealand Journal of Marine and Freshwater Research, 1976
- Physical oceanographic observations in Marlborough SoundsNew Zealand Journal of Marine and Freshwater Research, 1974