New Zealand Journal of Marine and Freshwater Research abstracts
Aquaculture trials of the New Zealand bath-sponge Spongia (Heterofibria)
manipulatus using lanterns
Michelle Kelly
National Centre for Aquatic Biodiversity and Biosecurity
National Institute of Water and Atmospheric
Research Limited
Private Bag 109 695, Newmarket
Auckland, New Zealand
email: m.kelly@niwa.co.nz
Sean Handley
Mike Page
National Institute of Water and Atmospheric
Research Limited
P.O. Box 893
Nelson, New Zealand
Paul Butterfield
Pacific Aquaculture New Zealand Limited
Private Bag 558
Whangaparaoa, New Zealand
Bruce Hartill
Shane Kelly*
National Institute of Water and Atmospheric
Research Limited
Private Bag 109 695, Newmarket
Auckland, New Zealand
*Present address: Auckland Regional Council, Private Bag 92 012, Auckland,
New Zealand.
Abstract A submarine lantern system was trailed in the
aquaculture of explants of the endemic New Zealand bath-sponge Spongia
(Heterofibria) manipulatus (Demospongiae: Dictyoceratida: Spongiidae)
at four New Zealand sites, two in the Marlborough Sounds and two off Coromandel
Peninsula. The main objectives were to compare growth rates of explants at
different sites, compare these with those of control sponges, and to assess
the utility of these lanterns for the culture of this species. After a period
of 13 months, sponges at exposed Bonne Point in the Marlborough Sounds were
on average 73% larger in estimated volume than at the start of the experiments.
Growth rates of explants at exposed Port Charles, Coromandel, showed no significant
change over the study period, although positive growth over spring 2003 was
evident. Sponge explants at sheltered Wairangi Inlet and Kennedy Bay, in
the Marlborough Sounds and Coromandel, respectively, did poorly, with most
explants regressing in size and becoming moribund. Growth rates varied considerably
between individuals at each location. Implications of the growth rate characteristics
of S. (H.) manipulatus, and the design and construction
of the aquaculture lantern, for the future commercial production of this
species are discussed.
Keywords Porifera; Dictyoceratida; Spongiidae; Spongia;
bath-sponge; aquaculture; lantern; growth-rate; New Zealand
M03049; Received 25 August 2003; accepted 16 January 2004; Online publication
date 8 June 2004
New Zealand Journal of Marine and Freshwater Research, 2004, Vol. 38:
231-241
0028-8330/04/3802-0231 © The Royal Society of New Zealand 2004
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