Leader: Margaret Morley
Ostracoda are microscopic crustacea (sometimes
called water-fleas) that mostly live in water and are characterised by the
possession of calcified, bivalved shells that when
they die are commonly buried by sediment and preserved as fossils. The goal of
this programme, involving Margaret Morley and Bruce Hayward, is to document the
biodiversity and ecological distribution of the shallow marine and estuarine Ostracoda
of New Zealand, particularly the northern North Island.
This is a much neglected field of study in New Zealand. The underlying reason
for these studies is to be able to use them to help interpret
paleoenvironmental changes that have occurred in the coastal marine environment
around New Zealand
during the Holocene (e.g. human impacts, earthquake displacements, sea-level
changes). We have also used of ostracods to compliment foraminifera in some of
these human impact and earthquake displacement studies.
a. Intertidal and shallow subtidal zonation, Whangapoua
Harbour, Coromandel – published, 2006.
b. Impact of increased freshwater runoff, Waitemata
Harbour – published, 2006.
c. Ecological distribution, Waitemata Harbour – published, 2007.
d. Impact of introduced Asian date mussels and chord grass, Raglan Harbour,
Firth of Thames, Tamaki Estuary, Mahurangi Harbour, Kaipara Harbour –
e. Microfossil record of the Holocene breaching of Auckland maar craters - published, 2009.
f. Ostracod distribution in Big
Lagoon, Marlborough and use in paleogeographic history – published, 2010.
g. Elevational zonation of ostracods living among coralline-turf on Auckland rocky shores –
h. Biodiversity and distribution of
modern ostracods in the Hauraki Gulf –
i. Biodiversity and
distribution of modern ostracods in Matai Bay, Northland –Published, 2014.
j. Biodiversity and
distribution of modern ostracods of the Cavalli Islands, Northland – Underway,
M.S., Hayward, B.W., 2014: Biodiversity and distribution of Ostracoda,
Foraminifera and Micromollusca of Matai Bay,
Northland. Records of Auckland Museum 49: 55-80.
M.S., Hayward, B.W., 2012: Ostracoda of the Hauraki Gulf, New Zealand. Records
of Auckland Museum 48: 51-75.
B.W., 2010: Tidal influence on ostracod and molluscan faunas in coralline
turf on the east and west coasts of Auckland,
Records of Auckland
Museum 47: 51-74.
B.W., Wilson, K., Morley, M.S., Cochran, U., Grenfell, H.R., Sabaa, A.T.,
Daymond-King, R., 2010: Microfossil record of the Holocene evolution of
coastal wetlands in a tectonically-active region of New Zealand. The
Holocene 20: 405-421.
- Hayward, B.W., Morley, M.S., Sabaa,
A.T., Grenfell, H.R., Daymond-King, R., Molloy, C., Shane, P.A.R.,
Augustinus, P.A., 2009. Fossil record of the post-glacial marine breaching
of Auckland's volcanic maar craters. Records of Auckland Institute and
Museum 45: 73-99.
B.W., Grenfell, H.R., Sabaa, A.T., Morley, M.S., 2008. Ecological Impact
of the introduction to New Zealand of Asian Date Mussels and Cordgrass –
the Foraminiferal, Ostracod and Molluscan Record. Estuaries and Coasts
- Morley, M.S., and Hayward,
B.W., 2007. Intertidal and shallow-water Ostracoda of the Waitemata
Harbour, New Zealand. Records of Auckland War Memorial Museum 44:
- Morley, M.S., and Hayward,
B.W., 2006. Molluscs and ostracods in a tidal transect from Whangapoua Harbour, Coromandel Peninsula. Poirieria 32: 24-33.
- Hayward, B. W., Grenfell,
H. R., Sabaa, A., Morley, M. S., and Horrocks, M., 2006. Impact and timing
of increased freshwater runoff into sheltered harbour environments around
Auckland City, New Zealand. Estuaries and Coasts, 29: 165-182.
- Hayward, B.W., 1982.
Foraminifera and ostracoda in nearshore
sediments, Little Barrier Island, northen New
Zealand. Tane, 28: 53-66.
- Hayward, B.W., 1981.
Ostracod fauna of an intertidal pool at Kawerua,
Northland. Tane, 27: 159-168.