Diatoms: Natural Diet for the Growth and Survivability of Indian White Shrimp Larvae

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ABSTRACT

The different phytoplankton species contains amino acids, carbohydrates, nutrients, fatty acids, vitamins, enzymes and minerals. In which Indian White Shrimp (Penaeus indicus) requires lipids, amino acids, carbohydrates as energy source, vitamins and minerals for their growth and survival.

This study was conducted to test the survival and growth of Indian White Shrimp (Penaeus indicus) larvae using the different phytoplankton species as natural diet.

300 nauplii were placed on a 9 containers. Each container was labeled by TS1- Thalassiosira sp., TS2- Skeletonema sp., and Positive Control- Chaetoceros sp. with three replicate. Different phytoplankton species was cultured and applied in each container.

Based on the results gathered and analyzed using the One-Way Analysis of Variance, Thalassiosira sp. had the highest stage index mean of 4.4 at mysis stage which is significantly different to 3.6 Skeletonema sp. and 3.8 Chaetoceros sp. (Positive Control). At the Post Larval stage, Thalassiosira sp. had the highest stage index mean of 6.9 comparable to 6.7 Skeletonema sp. and 6.8 Chaetoceros sp. (Positive Control). Highest survival rate mean at Post Larval 1 is observe with Skeletonema sp.- 49.45% comparable to Thalassiosira sp.- 26.67% and Chaetoceros sp. (Positive Control)- 42.89%. Consistently observe at Post Larval 5 Skeletonema sp.- 43.44% comparable to Thalassiosira sp.- 26% and Chaetoceros sp. (Positive Control)- 34.56%.

Using the different phytoplankton species like Thalassiosira sp. and Skeletonema sp. were suitable as alternative natural diet for the growth and survival of the Indian White Shrimp (Penaeus indicus) larvae.
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