Density, Water Quality Suitability and Size Distribution of Pokea Clams (Batissa violacea var. celebensis, von Martens 1897) at Lasolo River Southeast Sulawesi

  • Bahtiar Program Studi Manajemen Sumber Daya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Halu Oleo, Indonesia
  • Latifa Fekri Program Studi Manajemen Sumber Daya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Halu Oleo, Indonesia
  • Muhammad Nur Findra Program Studi Manajemen Sumber Daya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Khairun, Indonesia
Keywords: Batissa violacea, clams, density, size, water quality

Abstract

The pokea density and its size distribution are different in every place and time which influenced by water quality. This study aimed to determine the density and suitability of water quality, and size distribution of pokea at Lasolo River, Southeast Sulawesi. Pokea samples were collected randomly in all water segment every month for 1 year in the area of Lasolo River, North Konawe. Some samples of pokea were collected using the wide range of tangge fishing gear (traditional tool/ traditional fishing gear) as much as 6 pull times.  In the process of collecting the sample of water quality, it was done simultaneously with the samples of shell. The shell density in every place and time was analyzed using the Mann-Whitney test. The preferences of pokea in water quality were analyzed using Principal Component Analysis (PCA) and Group Analysis (CA) in the package of multivariate statistical program (XLSTAT). The results of this analysis showed that the density of the middle of estuary was significantly different (higher) than its density in the initial and final regions which found upstream (lowest density) and in the estuary area, while the density of pokea was not significantly different in each month of observation. The pokea were dominantly found in small size (1.62-2.10-3.09-3.57 cm). The size of the pokea were distributed in all water segment, which were so many in May and June. The preferences habitat of pokea were the slow-flowing, high-brightness, and deep water.

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Published
2024-06-02
How to Cite
Bahtiar, FekriL., & FindraM. N. (2024). Density, Water Quality Suitability and Size Distribution of Pokea Clams (Batissa violacea var. celebensis, von Martens 1897) at Lasolo River Southeast Sulawesi. Jurnal Pengelolaan Perikanan Tropis (Journal of Tropical Fisheries Management), 8(1), 1-8. https://doi.org/10.29244/jppt.v8i1.48555
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