scholarly journals PENGARUH SUHU TERHADAP PEMIJAHAN KERANG MUTIARA Pinctada maxima (JAMESON)

2011 ◽  
Vol 7 (1) ◽  
pp. 36
Author(s):  
Pitjont Tomatala
Keyword(s):  
Water Temperature ◽  
Pearl Oyster ◽  
Effect Of Temperature ◽  
Temperature Decrease ◽  
Intensive Culture ◽  
Pearl Oysters ◽  
South Sea ◽  
Pinctada Maxima ◽  
Determining Factor

Pearl oysters, Pinctada maxima, are known as South Sea Pearl. Breeding is an important factor in intensive culture pearl oyster. In breeding, spawning became determining factor. The purpose of this research was to understand the effect of temperature decrease on the spawning level and to compare the treatment of water temperature decrease and increase on spawning level of pearl oyster P. maxima. The result showed that temperature decrease treatment influenced the success of the spawning level. Both water temperature decrease and increase had similar effect on the spawning level of the pearl oyster.

scholarly journals Control of Polychaetes by Dipping Infected Pearl Oyster on Different Salinity

2007 ◽  
Vol 3 (2) ◽  
pp. 47
Author(s):  
Yani Hadiroseyani ◽  
. Iswadi ◽  
Daniel Djokosetyanto
Keyword(s):  
Survival Rate ◽  
Key Words ◽  
Saline Water ◽  
Pearl Oyster ◽  
High Survival ◽  
High Survival Rate ◽  
Pearl Oysters ◽  
Pinctada Maxima

<p>Dip treatment on pearl oysters <em>(Pinctada maxima) </em>was conducted in different concentrations of saline water to eliminate boring polychaetes. Results shows that polychaetes leave the osyters which treated on saline water at 0 ppt, 45 ppt, and 60 ppt as long as 15 minutes each. It also shows that the oysters got high survival rate 7 days after the treatment.</p> <p>Key words : Polychaetes, pearl oyster, dipping, salinity</p> <p> </p> <p>ABSTRAK</p> <p>Pengendalian polikaeta pengebor dengan menggunakan berbagai konsentrasi larutan garam telah dilakukan pada tiram mutiara <em>(Pinctada maxima). </em>Berdasarkan jumlah polikaeta yang keluar, hasil percobaan ini menunjukkan bahwa perendaman dengan konsentrasi garam 0 ppt. 45 ppt, dan 60 ppt selama 15 menit lebih efektif dibandingkan pada konsentrasi 15 dan 30 ppt. Tingkat kelangsungan hidup tiram mutiara yang diamati 7 hari setelah perendaman dalam larutan garam mencapai 100%.</p> Kata kunci : Polikaeta. tiram mutiara, perendaman. salinitas

scholarly journals PHYTOPLANKTON COMPOSITION AND ITS RELATION TO PEARL OYSTER AQUACULTURE (Pinctada maxima) IN SEKOTONG, WEST NUSA TENGGARA

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
. Fathurrahman ◽  
. Aunurohim ◽  
Varian Fahmi
Keyword(s):  
Common Species ◽  
Pearl Oyster ◽  
Physical Parameters ◽  
Phytoplankton Composition ◽  
Water Condition ◽  
Pearl Oysters ◽  
Oyster Aquaculture ◽  
Aquaculture Industry ◽  
Water Nutrients ◽  
Pinctada Maxima

Pearl oyster aquaculture is one of the marine industries that is currently growing in West Nusa Tenggara. Pearl oyster (Pinctada maxima) is a common species of oyster that cultivated in West Nusa Tenggara waters. A suitable location is an important factor for the success of pearl aquaculture industry. It needs a good water quality and supported by appropriate physical parameters for other marine biotas. The aim of this research was to analize phytoplankton composition (biological parameter) and it correlation to the Sekotong water condition for pearl farming production. The result showed that the pearl farming location has good water condition according to physio-chemical parameter and water nutrients. All parameters were in suitable range for the growth and development of pearl oysters. Keywords: pearl farming, phytoplankton, Pinctada maxima, West Nusta Tenggara

scholarly journals THE EFFECT OF SEASONS AND DEPTHS ON GROWTH AND SURVIVAL RATE OF PEARL OYSTER (Pinctada maxima) IN KODEK BAY, NORTH LOMBOK

2011 ◽  
Vol 3 (2) ◽  
Author(s):  
M. S. Hamzah ◽  
Bisman Nababan ◽  
Bisman Nababan
Keyword(s):  
Survival Rate ◽  
Seedling Survival ◽  
Pearl Oyster ◽  
Mass Mortality ◽  
Growth And Survival ◽  
Transition Season ◽  
Pearl Oysters ◽  
Significant Difference ◽  
Similar Survival ◽  
Pinctada Maxima

The pearl oyster (Pinctada maxima) farming in the West Nusa Tenggara waters in particular and in other areas, complained to the mass mortality of pearl oysters saplings on shell width between 3-4 cm. The mass mortality, allegedly as a result of changing in environmental conditions and triggered by the shift in seasons. This research aimed to determine the effect of seasonal variations in water conditions at different depth levels on growth and survival of seedlings of pearl oysters conducted on March 23, 2008 to February 22, 2009. This research was very useful for pearl oyster farming in an effort to suppress the mass mortality rates based on the appropriate level of depth and seasons. Analysis of variance showed that the seasonal factors, the level of depth, and the interaction between both factors responded very significantly on pearl oyster seedling survival. The "significant difference test" showed that the interaction between season and level of 2 m depth provided the best result with 100% survival. The similar survival rate was also found at a depth of 8 m during the transition season I and the east season. For single factor (depth), the best result for growth and survival rate was found in 2 m deep during the transition season I.Keywords: Oyster sapling, Pinctada maxima, growth, mortality, season, depth, Kodek Bay

scholarly journals Control of Polychaetes by Dipping Infected Pearl Oyster on Different Salinity

2007 ◽  
Vol 3 (3) ◽  
pp. 29
Author(s):  
Yani Hadiroseyani ◽  
. Iswadi ◽  
Daniel Djokosetyanto
Keyword(s):  
Survival Rate ◽  
Key Words ◽  
Saline Water ◽  
Pearl Oyster ◽  
High Survival ◽  
High Survival Rate ◽  
Pearl Oysters ◽  
Pinctada Maxima

<p>Dip treatment on pearl oysters (<em>Pinctada maxima</em>) was conducted in different concentrations of saline water to eliminate boring polychaetes. Results shows that polychaetes leave the oysters which treated on saline water at 0 ppt, 45 ppt, and 60 ppt as long as 15 minutes each. It also shows that the oysters got high survival rate 7 days after the treatment.</p> <p>Key words: Pearl oyster, <em>Pinctada maxima</em>, polychaetes, salt, dipping, survival rate  </p>

scholarly journals SETTLEMENT ABILITY OF PEARL OYSTER (Pinctada maxima) LARVAE AT DIFFERENT POSITIONS AND DEPTHS COLLECTORS

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Mat Sardi Hamzah
Keyword(s):  
Survival Rate ◽  
Seed Production ◽  
Analysis Of Variance ◽  
Pearl Oyster ◽  
Laboratory Scale ◽  
Research Centre ◽  
Success Factor ◽  
Pearl Oysters ◽  
Depth Analysis ◽  
Pinctada Maxima

One of the success  factor in the cultivation of pearl oysters (Pinctada maxima) within laboratory scale of  is the  ability of the larvae to settle on  the collector. Stocking collectors which are not on time with an irregular position could cause a decline in seed production. The research was conducted from 25 July to 27August 2011 at Laboratory of Marine Bio-industry Technical Implementatation Unit,  Research Centre for Oceanography, Indonesian Institute of Sciences, Lombok, West Nusa Tenggara (NTB). The aim of the study was to observe the attachment of larvae at different position and depth. Analysis of variance showed that larvae settlement was influenced  by  depth instead of position and the interaction between them. Real Honest Different Test showed that in the 20 cm depth was significantly different from  60 cm and 100 cm in number of larvae attached  on the collector. The highest survival rate was in 20 cm depth with 68,98% (516 larvae) while in 60 cm was 17,11% (128 larvae) and 100 cm (9,22% (69 larvae), and the others were attached on the wall of  the tank 4,68% (35 larvae). Keywords: settlement ability of pearl oyster’s larvae (Pinctada maxima), collector, depth

scholarly journals Spore ornamentation of Haplosporidium hinei n. sp. (Haplosporidia) in pearl oysters Pinctada maxima (Jameson, 1901)

Parasitology ◽  
2008 ◽  
Vol 135 (4) ◽  
pp. 521-527 ◽  
Author(s):  
D. BEARHAM ◽  
Z. SPIERS ◽  
S. RAIDAL ◽  
J. B. JONES ◽  
E. M. BURRESON ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Pearl Oyster ◽  
Spore Wall ◽  
Wall Material ◽  
Spore Body ◽  
Spore Ornamentation ◽  
Transmission Electron ◽  
Pearl Oysters ◽  
Pinctada Maxima ◽  
Scanning Electron

SUMMARYAn infection of pearl oysters, Pinctada maxima, attributed to a Haplosporidium sp. by Hine and Thorne (1998) has been detected on 3 occasions and is considered to represent a serious concern to the pearling industry in Australia. The spore ornamentation of the parasite was determined by scanning electron microscopy and transmission electron microscopy. Spores of the parasite were pleomorphic, or elongated 3·5–4 μm×2·5–3·0 μm in size. Two filaments were wound around the spore and originated from 2 ‘knob-like’ posterior thickenings. Both filaments passed up one side of the spore together until just below the operculum whereupon each split and passed obliquely under the lip of the opercula lid. Each filament wrapped around the spore 4 times. The posterior thickenings seem to appear late in the development of the spore and were composed of spore wall material. A second set of branching tubular filaments composed of a different material was observed on the spore body although not on mature spores possessing a ‘knob-like’ posterior thickening. The ornamentation on the spores of the pearl oyster parasite was unique amongst described haplosporidian species where spore ornamentation is known. The parasite is named in this manuscript as Haplosporidium hinei n. sp.

scholarly journals SETTLEMENT ABILITY OF PEARL OYSTER (Pinctada maxima) LARVAE AT DIFFERENT POSITIONS AND DEPTHS COLLECTORS

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Mat Sardi Hamzah
Keyword(s):  
Survival Rate ◽  
Seed Production ◽  
Analysis Of Variance ◽  
Pearl Oyster ◽  
Laboratory Scale ◽  
Research Centre ◽  
Success Factor ◽  
Pearl Oysters ◽  
Depth Analysis ◽  
Pinctada Maxima

<p>One of the success  factor in the cultivation of pearl oysters (<span style="text-decoration: underline;">Pinctada</span> <span style="text-decoration: underline;">maxima</span>) within laboratory scale of  is the  ability of the larvae to settle on  the collector. Stocking collectors which are not on time with an irregular position could cause a decline in seed production. The research was conducted from 25 July to 27August 2011 at Laboratory of Marine Bio-industry Technical Implementatation Unit,  Research Centre for Oceanography, Indonesian Institute of Sciences, Lombok, West Nusa Tenggara (NTB). The aim of the study was to observe the attachment of larvae at different position and depth. Analysis of variance showed that larvae settlement was influenced  by  depth instead of position and the interaction between them. Real Honest Different Test showed that in the 20 cm depth was significantly different from  60 cm and 100 cm in number of larvae attached  on the collector. The highest survival rate was in 20 cm depth with 68,98% (516 larvae) while in 60 cm was 17,11% (128 larvae) and 100 cm (9,22% (69 larvae), and the others were attached on the wall of  the tank 4,68% (35 larvae).</p> <p>Keywords: settlement ability of pearl oyster’s larvae (<span style="text-decoration: underline;">Pinctada</span> <span style="text-decoration: underline;">maxima</span>), collector, depth</p>

scholarly journals Polychaete species infected pearl oyster Pinctada maxima at Padang Cermin Water, Lampung

2007 ◽  
Vol 6 (2) ◽  
pp. 197 ◽  
Author(s):  
Y. Hadiroseyani ◽  
D. Djokosetiyanto ◽  
. Iswadi
Keyword(s):  
External Surface ◽  
Pearl Oyster ◽  
Polychaete Species ◽  
Pearl Oysters ◽  
Pinctada Maxima

<p>This study was conducted to determine polychaetes infecting pearl oyster <em>Pinctada maxima</em> reared at Padang Cermin Bay, Lampung.  There were 9 genera of polychaetes harboured on the shell of pearl oysters from Teluk Padang Cermin Lampung.  Those are Eunice, Lysidice, Nereis, Phylodoce, Polycirrus, Polydora  Salmacing,  Streblosoma and Syllis which attached on external surface of the shell and some of them were burrowed into the shell.</p> <p>Keywords:  polychaeta, pearl oyster, <em>Pinctada maxima</em></p> <p><em> </em></p> <p>Abstrak</p> <p>Penelitian ini dilakukan untuk mengetahui jenis-jenis polikaeta yang menyerang tiram mutiara <em>Pinctada maxima</em> yang dipelihara di Teluk Padang Cermin, Lampung.  Hasil penelitian menunjukkan bahwa terdapat 9 genus polikaeta yang menyerang tiram mutiara, yaitu  <em>Eunice, Lysidice, Nereis, Phylodoce, Polycirrus, Salmacing,  Streblosoma </em>dan <em>Syllis</em> ditemukan menempel pada permukaan luar cangkang tiram mutiara<em>.</em> <em>Lysidice, Nereis, Phylodoce, </em>dan<em> Syllis </em>juga ditemukan pada lapisan dalam cangkang<em>. Polydora </em>hanya terdapat pada lapisan dalam cangkang.<em> </em></p> Kata kunci:  polikaeta, tiram mutiara, <em>Pinctada maxima</em>

scholarly journals THE EFFECT OF SEASONS AND DEPTHS ON GROWTH AND SURVIVAL RATE OF PEARL OYSTER (Pinctada maxima) IN KODEK BAY, NORTH LOMBOK

2011 ◽  
Vol 3 (2) ◽  
Author(s):  
M. S. Hamzah ◽  
Bisman Nababan ◽  
Bisman Nababan
Keyword(s):  
Survival Rate ◽  
Seedling Survival ◽  
Pearl Oyster ◽  
Mass Mortality ◽  
Growth And Survival ◽  
Transition Season ◽  
Pearl Oysters ◽  
Significant Difference ◽  
Similar Survival ◽  
Pinctada Maxima

<p>The pearl oyster (Pinctada maxima) farming in the West Nusa Tenggara waters in particular and in other areas, complained to the mass mortality of pearl oysters saplings on shell width between 3-4 cm. The mass mortality, allegedly as a result of changing in environmental conditions and triggered by the shift in seasons. This research aimed to determine the effect of seasonal variations in water conditions at different depth levels on growth and survival of seedlings of pearl oysters conducted on March 23, 2008 to February 22, 2009. This research was very useful for pearl oyster farming in an effort to suppress the mass mortality rates based on the appropriate level of depth and seasons. Analysis of variance showed that the seasonal factors, the level of depth, and the interaction between both factors responded very significantly on pearl oyster seedling survival. The "significant difference test" showed that the interaction between season and level of 2 m depth provided the best result with 100% survival. The similar survival rate was also found at a depth of 8 m during the transition season I and the east season. For single factor (depth), the best result for growth and survival rate was found in 2 m deep during the transition season I.</p><p>Keywords: Oyster sapling, Pinctada maxima, growth, mortality, season, depth, Kodek Bay</p>

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