West Papua Waters are Potential Fishing and Shrimp Areas




Papua waters are strongly influenced by two seasons, namely the west and east seasons where each peaks in February and August respectively. During the west season, sea surface temperatures tend to be hotter than the east season. Cold temperature in the east season makes the water more fertile as phytoplankton and zooplankton increase. 

Papua’s southern waters have water mass characteristics somewhat different from waters in other parts of Indonesia. This is due to the geographical location which is adjacent and more open with the waters of the Banda Sea, the Timor Sea and the Indian Ocean.

In the east season, the oceanographic conditions of these waters are heavily influenced by the mass of water from the Banda Sea. This greatly affects the distribution of chlorophyll and nutrients and pelagic fishes in the area so that these waters are also known as one of the potential fishing and shrimp areas, especially for pelagic fishes. 

Dissolved oxygen (DO) concentrations in the northern and southern waters range from 2.12 to 4.51 ml per liter, and the concentration of phosphate concentrations range from 0.02 - 3.39 μg-A per liter. Nitrate concentration concentrations range from 0.19 μg-A per liter to 40.94 μg-A per liter, and the measured concentration of silicates range from 0.83 to 91.34 μg-A per liter. 

Meanwhile, the large to small rivers coming from the mountainous region in the central part of Kepala Burung flow toward the lowlands and empties into Bintuni Bay. In addition, there are also a number of rivers that flow southward and empty into the southern and northern coasts. 

Several major rivers that flow into Bintuni Bay are the Arandai Wiryagar, Kalitami, Seganoi, Kais, Kamundan, Teminabuan, Sermuk, Maambar, Woronggei and Sanindar rivers. 

In addition rivers, lakes are also found in mountainous areas, namely the Anggi Giji, Anggi Gita and Ayamaru lakes. 

The biological resources, especially fishery resources, that have been identified in the Arafuru Sea and Bintuni Bay are; sharks, bottlenose dolphins, green turtles, olive turtles, humpback whales, clams, giant clams, and triton. 

In addition, another type of marine biota is the mollusk consisting of 56 families and 196 species. A total of 153 species are Gastropoda mollusks or snails (36 tribes and 58 genera), 40 types of double valve mollusks or shells (18 tribes and 30 genera) and 3 types of Cephalopoda mollusks (2 tribes and 2 genera). 

Among the types of mollusks are protected species, among others, giant clam (Tridacna gigas), large clam (Tridacna maxima), bear paw clam (Hippopus hippopus), and hole clam (Tridacna coreacea) from the Tridacnidae family. Next are snails such as the Triton trumpet (Charonia tritonis) from the Cymatidae family, the horned helmet (Cassis cornuta) from the Cassidae family, commercial top shell (Trochus niloticus) from the Trochidae family, and the green turban (Turbo marmoratus) from the Trubinidae family.


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