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Challenges of Shrimp
from THE CRUST - ISSUE #4
by THE CRUST
sity is sufficient in stabilizing the algae in the pond. “In the dry season, farmers only need to focus on feed management and maintaining the basic organic ingredients,” he explained. Meanwhile, during the wet season, the intensity of sunlight is low so the growth level of the green algae tends to be slower, especially when the that shrimp diseases will have an outbreak in that particular area. However, according to Narendra, it must be known that the change of seasons can aggravate diseases that once existed in the area. He explained further that if there is a high rainfall level, then places with a history of WSSV disease will become more prone to reinfection; it’s ponds are in the plankton growing period as part of the preparation process. Additionally, “With the water temperature below 30oC, shrimps are more susceptible to WSSV disease. To mitigate this White Spot disease, one thing that farmers can do is to implement strict biosecurity protocols,” said Wayan.
Affecting Water Quality and Prone to Disease
Speaking about shrimp disease, it should be understood that climate and disease do not go hand in hand. Therefore, when the climate changes, it does not mean because WSSV disease is more common in the wet season. Narendra also said that climate change also directly affects the quality of aquaculture water. The Internal data of PT Suri Tani Pemuka in East Java shows that there has been an increase in several indicators of water contamination, such as TAN (Total Ammonia as Nitrogen), Nitrate, and TVC (Total Vibrio Count) in seawater in the period of 2020 to 2021.
To further understand the effects of climate change, besides affecting the water quality which leads to shrimp’s health, Wayan added that climate change can also affect the FCR because they are all interre-
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