scholarly journals Effects of artificial and natural materials ropes as substrates for settling and metamorphosis of pediveliger pearl oyster, Pinctada maxima (Jameson, 1901)

Author(s):  
Medy Ompi ◽  
Fontje Kaligis ◽  
Stephanus Mandagi ◽  
Kathe Jensen
1993 ◽  
Vol 62 (1) ◽  
pp. 105-106 ◽  
Author(s):  
J.H. Norton ◽  
M.A. Shepherd ◽  
F.P. Perkins ◽  
H.C. Prior

2007 ◽  
Vol 3 (2) ◽  
pp. 47
Author(s):  
Yani Hadiroseyani ◽  
. Iswadi ◽  
Daniel Djokosetyanto

<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


Author(s):  
Ludi Parwadani Aji

ABSTRACT                   Pearl oyster culture is unique because the product is gem not flesh and one of the species that produce pearl is Pinctada maxima (Silver or Gold lip pearl oyster). Stock for pearl oyster production can be collected from the wild or hatchery. However, hatchery production is a better solution to supply P.maxima for pearl production rather than just depend on wild stocks. Spat from the wild or hatchery will be grown-out for pearl production by longline or raft culture system method in ocean. Raft culture provide a work platform to repair, clean and store culture tools, while, longline culture has better design to deal with wave or wind exposure. There are identified different culture systems according different species (for example between P.maxima and P.fucata) and locations. Several constraints on P. maxima culture also identify such as biofouling organisms, predations and diseases that can reduce productivity and pearl quality. For example, mass mortalities of P.maxima occurred in Western Australia due to viral infection and it disrupted the pearl oyster industry. Therefore, several strategies are needed to mitigate those problems to achieve maximal productivity by using good management culture practice.       Key word: pearl oyster, P. maxima, management, culture


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