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Journal : Jurnal Perikanan

PERBANDINGAN MORFOMETRIK LAMUN Enhalus acoroides DI PANTAI TUKAK DAN PANTAI TANJUNG KERASAK KABUPATEN BANGKA SELATAN Ramadhayanti, Rizka; Umroh, Umroh; Utami, Eva
Jurnal Perikanan Unram Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1589

Abstract

Perbedaan dalam kualitas perairan serta karakteristik substrat antara Pantai Tukak dan Pantai Tanjung Kerasak diduga dapat memengaruhi morfometrik lamun Enhalus acoroides yang tumbuh di wilayah tersebut. Mengacu pada hasil penelitian sebelumnya, dibutuhkan eksplorasi lebih lanjut secara mendalam di wilayah Bangka Selatan, terutama di Pantai Tukak dan Pantai Tanjung Kerasak sebagai lokasi utama penelitian ini bertujuan mengidentifikasi variasi morfometrik lamun Enhalus acoroides antara kedua lokasi penelitian tersebut, serta melakukan analisis keterkaitan antara morfometrik lamun tersebut dengan kondisi kualitas perairan di lokasi tersebut. Kegiatan penelitian ini dilaksanakan selama bulan Januari tahun 2024, dengan lokasi pelaksanaan studi bertempat di Pantai Tukak dan Pantai Tanjung Kerasak. Pengambilan data dilakukan di enam titik stasiun, dengan jumlah total 360 sampel morfometrik lamun Enhalus acoroides yang berhasil dikumpulkan. Hasil penelitian mengindikasikan bahwa terdapat perbedaan ukuran morfologi pada lamun Enhalus acoroides diantara kedua Lokasi penelitian tersebut. Hasil analisis kondisi kualitas perairan Pantai Tukak menunjukkan adanya korelasi yang signifikan antara parameter DO (oksigen terlarut) dan panjang daun lamun Enhalus acoroides. Sementara itu, hasil analisis yang dilakukan di kawasan Pantai Tanjung Kerasak menunjukkan bahwa kualitas perairan di wilayah tersebut berada dalam kondisi yang memiliki korelasi dalam tingkat sedang terhadap morfometrik lamun dari spesies Enhalus acoroides
HUBUNGAN STRUKTUR KOMUNITAS PLANKTON DAN KUALITAS PERAIRAN MUARA SUNGAI BEROK BANGKA TENGAH Dly, Nurliana Isroq; Utami, Eva; Pamungkas, Aditya
Jurnal Perikanan Unram Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1609

Abstract

Plankton are the smallest biota that drift and inhabit marine and fresh waters. Plankton have a variety of responses and are susceptible to changes in water quality. The purpose of this research is to find out and analyze the structure of the plankton community and also the quality of the waters and their relationship using spearman correlation analysis. The time and place of the research was carried out of October 2022 in the waters of the Berok Estuary, Central Bangka, as many as 6 station points using the plankton net tool with the vertical method. Plankton samples were identified under a binocular microscope with three repetitions. The results showed that 67 species from 39 genus. Lowest plankton abundance at station 1, namely 82 cells/l and the highest at stations 5 and 6, namely 1,310 cells/l and 1,327 cells/l. The results of the analysis of the lowest plankton diversity index were at station 1, namely 1.945 and the highest at station 5, namely 3.265. The lowest uniformity index at station 1 is 0.620 and the highest at station 2 is 0.877. The lowest dominance index at station 5 is 0.055 and the highest at station 1 is 0.183. several water parameters have been tested according to quality standards, except brightness, nitrate and orthophosphate, will the appropriate parameters have been optimal for marine biota. The relationship of water quality including orthophosphate and current velocity a significant relationship to the plankton community structure in the waters of the Berok Estuary, Central Bangka