Results 251 to 260 of about 7,244,531 (279)

Spat collection, growth and meat yield of Pinna bicolor (Gmelin) in suspended culture in northern Australia

Aquaculture, 2006
Five species within the Family Pinnidae were collected on spat collectors at Pioneer Bay, Orpheus Island, north Queensland, Australia. Pinna bicolor represented > 99% of recruits. Approximately 950 P. bicolor spat recruited to collectors during 12 months of study beginning in late summer (March) with recruitment showing a distinct pulse during March ...
Beer, A C, Southgate, Paul C
openaire   +2 more sources

Using hanging plastic trays for three-dimensional collection of antique mactra (Mactra antiquata) spat

Aquaculture, 2006
This paper describes the first case of using hanging plastic tray for three-dimensional collection of the spat in the hatchery production of antique mactra. Different numbers of clusters (72, 90, 108) of plastic trays loaded with fine sand were hung in three tanks for three-dimensional collection of antique mactra, while the other two tanks without ...
Suwen Chen, Jinfen Wu, Lixiong Chen, Hanghua Zhang   +3 more
openaire   +1 more source

Natural spat collecting in the pacific oystercrassostrea gigas(thunberg)

Marine Behaviour and Physiology, 1990
The oyster cultivation industry of Hiroshima has a history of nearly 400 years and provides about 70% of the oyster production for the whole of Japan. The favourable location enables all the spat to be produced locally and the number of collector plates used for this purpose each year reaches 200–300 million. The natural system of spat collecting which
openaire   +1 more source

Benthic Spat Collection of Softshell Clams (Mya arenariaLinnaeus, 1758) using Mats

Journal of Shellfish Research, 2012
ABSTRACT Supply of softshell clam (Mya arenaria) seed for culture and restoration usually comes from hatcheries or through transfers from one site to another. Natural spat collection using Astro-Turf mats installed directly onto the sediments could be a viable alternative. Here, we describe a series of experiments to examine the performance of mats for
Bruno Myrand, Lise Chevarie, Réjean Tremblay   +2 more
openaire   +1 more source

RELATIVE EFFICACY OF TWO ARTIFICIAL SUBSTRATES IN THE COLLECTION OF SEA SCALLOP (Placopecten magellanicus) SPAT

Journal of the World Mariculture Society, 1981
AbstractRelative efficacy of two substrates commonly employed for procuring scallop spat is described. Monofilament gillnetting was superior to flexible polyethylene insofar as collecting greater numbers of sea scallops was concerned. Overlapping in sheet polyethylene resulted in rapid substrate saturation thus reducing substrate surface for larval ...
K. S. Naidu, F. M. Cahill, D. B. Lewis
openaire   +1 more source

Evaluation of selected substrates for collection of hatchery reared black-lip pearl oyster (Pinctada margaritifera) spat

2011
An experiment was conducted to investigate the effect of collector materials and position on Pinctada margaritifera spat attachment. Settlement on polyethylene pipes (54.6%) was significantly higher (P < 0.05) than on plastic baskets (25%). Significantly higher (P < 0.05) spat catch was recorded from the collectors which were installed on lower height ...
Ehteshami, F., Christianus, A., Rameshi, H., Harmin, Sharr Azni, Saad, Che Roos, Abdolalian, E.   +5 more
openaire   +2 more sources

Experimental spat collection and early growth of the pen shell, Pinna rugosa (Pelecypoda: Pinnidae), from the Gulf of California

Aquaculture, 1985
Abstract A total of 1031 spat of Pinna rugosa was collected during a 6-month experimental period, 84% of which came from depths of 3 to 11 m. There was a direct relationship between the numbers of spat collected and water temperatures. Growth rate was directly correlated with water temperatures and inversely correlated with the original sizes of ...
J.M. Cendejas, M.G. Carvallo, L.M. Juarez   +2 more
openaire   +1 more source

Wild Black-lip Pearl Oyster (Pinctada margaritifera) Spat Collection in Tanzania

2012
Pearl farming is a growing aquaculture activity in Tanzania but requires sufficient young pearl oysters to make it feasible. Collection of spat in the wild is the most viable way of doing this and was tested to establish whether it would yield sufficient juvenile pearl oysters to support an industry.
Ishengoma, EB, Jiddawi, NS, Tamatamah, RA, Mmochi, AJ   +3 more
openaire   +1 more source

Experimental spat collecting and growing of the oyster, Crassostrea rhizophorae guilding, in the Ciénaga Grande de Santa Marta, Colombia

Aquaculture, 1980
Abstract Experiments were carried out in the Cienaga Grande de Santa Marta on the northern coast of Colombia using methods best suited to the local conditions for the collection of larvae (spat catching) as well as the growing of the oyster, Crassostrea rhizophorae.
openaire   +1 more source

Optimizing spat collection efforts: spatiotemporal differences in Crassostrea rhizophorae and Pinctada imbricata settlement in Puerto Rico

In the Caribbean, the mangrove oyster Crassostrea rhizophorae and the Atlantic pearl oyster Pinctada imbricata have been studied and farmed; however, oyster aquaculture remains undeveloped in Puerto Rico. This study investigates oyster spat collection in Culebra, Puerto Rico, where the local fishing community is engaged in oyster aquaculture as a ...
Megan E. Considine, Nicolás X. Gómez-Andújar   +1 more
openaire   +1 more source