The Cultivation of the Mother-of-pearl Oyster in the Red Sea

1957 ◽  
Vol 8 (2) ◽  
pp. 111 ◽  
Author(s):  
C Crossland
Keyword(s):  
Red Sea ◽  
Environmental Conditions ◽  
Pearl Oyster ◽  
Commercial Production ◽  
Pinctada Margaritifera ◽  
Pearl Oysters ◽  
Original Manuscript ◽  
Marketable Size ◽  
Oyster Cultivation

This is an abbreviated form of the original manuscript prepared by the author following 16 years' work at Dongonab Bay in the Red Sea in an attempt to establish a pearl oyster cultivation industry. The environmental conditions at Dongonab, the species of pearl oysters in the Red Sea, and the detailed biology of Pinctada margaritifera (L.), the species used for the experiments, are discussed. Details are given of the methods developed for the collection of spat and the cultivation of the pearl-shell to marketable size. It was unfortunate that the improvements designed in 1921 were not used for commercial production, because the Sudan Government did not continue the scheme.

Abundance and distribution of the black-lip pearl oyster, Pinctada margaritifera (L.), in the Cook Islands, South Pacific

1992 ◽  
Vol 43 (6) ◽  
pp. 1409 ◽  
Author(s):  
NA Sims
Keyword(s):  
Distribution Patterns ◽  
Pearl Oyster ◽  
Shell Size ◽  
Pinctada Margaritifera ◽  
Cook Islands ◽  
The North ◽  
Pearl Oysters ◽  
Depth Gradients ◽  
Abundance And Distribution ◽  
Ongoing Monitoring

Stocks of Pinctada margaritifera were surveyed in three atoll lagoons in the Cook Islands to assess abundance, describe distribution patterns, and evaluate the method for ongoing monitoring. Belt transects were laid at randomly selected sites across the lagoons. Densities over depth gradients were extrapolated to give a stock estimate for Manihiki lagoon of 2.0 million�3.2 million pearl oysters. Stocks in Penrhyn lagoon (5.0 million � 4.1 million) and Suwarrow lagoon (around 400 000) were estimated from average densities. The wide confidence limits mean that other methods are needed to monitor changes in abundance over time. Penrhyn and Suwarrow lagoons have not recovered from earlier overfishing. No pearl oysters occurred below 36 m. Density and shell size increased with depth; this was most notable in Manihiki, where fishing was heaviest. Sizes and densities were influenced by bottom type in Manihiki. Density was greatest in the north of Penrhyn and decreased southwards; Manihiki had no density gradient across the lagoon.

scholarly journals THE RELATIONSHIP BETWEEN SEASON VARIATIONS AND DEPTH LEVEL ON THE GROWTH AND SURVIVAL RATE OF PEARL OYSTER SEEDS (Pinctada maxima) IN KAPONTORI BAY, BUTON ISLAND

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
M S Hamzah
Keyword(s):  
Survival Rate ◽  
Environmental Conditions ◽  
Survival Rates ◽  
Pearl Oyster ◽  
Mass Mortality ◽  
Depth Level ◽  
Growth And Survival ◽  
Pearl Oysters ◽  
The Relationship ◽  
Similar Growth

<p>The pearl oyster (<span style="text-decoration: underline;">P</span>. <span style="text-decoration: underline;">maxima</span>) farming particularly in the Kapontori Bay, Buton Island waters and in other areas had complained for the mass mortality of pearl oysters saplings on the shell width between 3-4 cm. The mass mortality, was 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 27, 2007 to February 28, 2008. 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. The variance analyses showed that depth levels affected the survival rates of the pearl oyster seeds significantly (P&lt;0.01). Based on honest significantly difference test, it also showed that the percentage number of survival rate was found higher within the depth of 2m (93.33%). Based on the relationship analyses between length and weight of shell body in all depths indicated a similar growth pattern of  minor allometric (b&lt;3). The growth, survival rate, and environmental conditions based on depth levels on pearl oyster saplings were discussed in this paper.</p> <p>Keywords: Seasonal variation, survival rate, growth, pearl shell (<span style="text-decoration: underline;">P</span>. <span style="text-decoration: underline;">maxima</span>), depth level</p>

scholarly journals THE RELATIONSHIP BETWEEN SEASON VARIATIONS AND DEPTH LEVEL ON THE GROWTH AND SURVIVAL RATE OF PEARL OYSTER SEEDS (Pinctada maxima) IN KAPONTORI BAY, BUTON ISLAND

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
M S Hamzah
Keyword(s):  
Survival Rate ◽  
Environmental Conditions ◽  
Survival Rates ◽  
Pearl Oyster ◽  
Mass Mortality ◽  
Depth Level ◽  
Growth And Survival ◽  
Pearl Oysters ◽  
The Relationship ◽  
Similar Growth

The pearl oyster (P. maxima) farming particularly in the Kapontori Bay, Buton Island waters and in other areas had complained for the mass mortality of pearl oysters saplings on the shell width between 3-4 cm. The mass mortality, was 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 27, 2007 to February 28, 2008. 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. The variance analyses showed that depth levels affected the survival rates of the pearl oyster seeds significantly (P<0.01). Based on honest significantly difference test, it also showed that the percentage number of survival rate was found higher within the depth of 2m (93.33%). Based on the relationship analyses between length and weight of shell body in all depths indicated a similar growth pattern of  minor allometric (b<3). The growth, survival rate, and environmental conditions based on depth levels on pearl oyster saplings were discussed in this paper. Keywords: Seasonal variation, survival rate, growth, pearl shell (P. maxima), depth level

scholarly journals Pinctada margaritifera box from Viminacium

Starinar ◽  
2017 ◽  
pp. 75-93 ◽  
Author(s):  
Dragana Spasic-Djuric
Keyword(s):  
Red Sea ◽  
Persian Gulf ◽  
Near East ◽  
Pearl Oyster ◽  
Second Century ◽  
Pacific Region ◽  
Pinctada Margaritifera ◽  
Initiation Rites ◽  
Functional Aspects ◽  
The Persian Gulf

A Pinctada margaritifera box was unearthed at Viminacium in 1985, at the site of Pe}ine, in a grave containing cremated remains. It was made from the shell of a pearl oyster (Pinctada margaritifera), an exotic clam whose habitat is tropical seas: the Indo-Pacific region, the Persian Gulf, and the Red Sea. Based on the grave type and a coin found in it, the box has been dated to the second half of the first and the first half of the second century AD. Morphologically and functionally, it represents a rare find in the territory of present-day Serbia and, together with the finds from Aquincum and Savaria, it is also a rare find of P. margaritiferae in the Central Balkans. It is a high-prestige item, indicative of contacts between Viminacium and the Near East, i.e. the area of present-day Israel, Jordan and Syria, where the workshops producing Pinctada boxes are alleged to have been. This text discusses the geographic-historical and, in particular, functional aspects of the P. margaritifera box as a symbol of Venus and a cultic prop in initiation rites.

Measures of Allometric Growth of Black-lip Pearl Oyster Pinctada margaritifera (Linnaeus, 1758) Red Sea, Egypt

2011 ◽  
Vol 7 (2) ◽  
pp. 201-211 ◽  
Author(s):  
A.E.H. El-Sayed ◽  
Fatma A. Abdel Raze ◽  
M.M. Abou-Zaid ◽  
Somaya M. Taha
Keyword(s):  
Red Sea ◽  
Pearl Oyster ◽  
Allometric Growth ◽  
Pinctada Margaritifera
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