Program Studi Manajemen Sumberdaya Perairan, Jurusan Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Indonesia
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@article{MARJ5624, author = {Moh Hidayat and - Ruswahyuni and Niniek Widyorini}, title = {ANALISIS LAJU SEDIMENTASI DI DAERAH PADANG LAMUN DENGAN TINGKAT KERAPATAN BERBEDA DI PULAU PANJANG, JEPARA}, journal = {Management of Aquatic Resources Journal (MAQUARES)}, volume = {3}, number = {3}, year = {2014}, keywords = {Laju sedimentasi; Padang Lamun; Pulau Panjang; Kerapatan; Deskriptif}, abstract = { Pulau Panjang merupakan salah satu wilayah di perairan Kabupaten Jepara yang memiliki keanekaragamanan ekosistem perairan, antara lain adalah ekosistem lamun yang merupakan habitat bagi biota-biota perairan. Secara ekologi, padang lamun mempunyai beberapa fungsi penting di daerah pesisir yang salah satunya berfungsi untuk menstabilkan dasar-dasar lunak dimana kebanyakan spesies tumbuh, terutama dengan sistem akar yang padat dan saling menyilang. Penelitian ini bertujuan untuk mengetahui laju sedimentasi di daerah padang lamun dengan tingkat kerapatan berbeda dan mengetahui hubungan antara kerapatan lamun dengan laju sedimentasi di Pulau Panjang. Metoda penelitian yang digunakan adalah metode deskriptif dan pencarian fakta di interpretasikan dengan tepat. Metode sampling dengan metode transek, sebaran lamun ditentukan 3 stasiun yaitu jarang, sedang, padat dan luasan yang sama (10 m x 10 m). Kuadran transect berukuran 1 m x 1 m digunakan untuk menghitung tegakan lamun dalam setiap meter persegi. Hasil penelitian menunjukkan 5 spesies lamun pada ketiga stasiun yaitu jenis Thalassia sp (65,292%), Cymodocea sp (18,539%), Enhallus sp (6,099%), Halodule sp (4,557%) dan Syringodium sp (5,512%). Laju sedimentasi di stasiun lamun jarang lebih besar dibanding pada stasiun lamun sedang dan padat. Laju sedimentasi sangat dipengaruhi oleh parameter kualitas air terutama kecepatan arus dan kedalaman. Hasil analisa uji Korelasi Pearso n sebesar menunjukkan adanya perbedaan signifikan antara Laju sedimentasi pada kerapatan lamun yang berbeda di pulau Panjang Jepara. Panjang island is one of the waters area in Jepara that have various aquatic ecosystems, such as seagrass which is habitat for aquatic biota. Ecologycally, seagrass has several important functions in the coastal areas, one of which serves to stabilize the soft bottom where more species grow, especially with it’s dense root system and crossing each other. The research aims to determine sedimentation rate in different seagrass density and to determine relation of seagrass density to sedimentation rate at the Panjang island. The research method used descriptive in whitc fact finding be interpreted correctly. Mapping os seagrass distribution method was done to classified 3 stations of namely ‘lisht’, ‘medium’, ‘dense’ in a same area (10m x 10m). 1m x 1m cuadrant transect was used to count the seagrass stands at each square meter. The result showed there are 5 species of seagrass in the third station ie Thalassia sp (65,292%), Cymodocea sp (18,539%), Enhallus sp (6,099%), Halodule sp (4,557%) dan Syringodium sp (5,512%). the sedimentation rate at the ‘lisht’ station of seagrass bed is bigger compared to the ‘medium’ and ‘dense’ stations. The sedimentation rate is strongly influenced by the water quality parameter,especially current and depth. The results of Pearson correlation analysis test shown a significant difference between the sedimentation rate at different seagrass density in the Panjang island of Jepara. }, issn = {2721-6233}, pages = {73--79} doi = {10.14710/marj.v3i3.5624}, url = {https://ejournal3.undip.ac.id/index.php/maquares/article/view/5624} }
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Pulau Panjang merupakan salah satu wilayah di perairan Kabupaten Jepara yang memiliki keanekaragamanan ekosistem perairan, antara lain adalah ekosistem lamun yang merupakan habitat bagi biota-biota perairan. Secara ekologi, padang lamun mempunyai beberapa fungsi penting di daerah pesisir yang salah satunya berfungsi untuk menstabilkan dasar-dasar lunak dimana kebanyakan spesies tumbuh, terutama dengan sistem akar yang padat dan saling menyilang. Penelitian ini bertujuan untuk mengetahui laju sedimentasi di daerah padang lamun dengan tingkat kerapatan berbeda dan mengetahui hubungan antara kerapatan lamun dengan laju sedimentasi di Pulau Panjang. Metoda penelitian yang digunakan adalah metode deskriptif dan pencarian fakta di interpretasikan dengan tepat. Metode sampling dengan metode transek, sebaran lamun ditentukan 3 stasiun yaitu jarang, sedang, padat dan luasan yang sama (10 m x 10 m). Kuadran transect berukuran 1 m x 1 m digunakan untuk menghitung tegakan lamun dalam setiap meter persegi. Hasil penelitian menunjukkan 5 spesies lamun pada ketiga stasiun yaitu jenis Thalassia sp (65,292%), Cymodocea sp (18,539%), Enhallus sp (6,099%), Halodule sp (4,557%) dan Syringodium sp (5,512%). Laju sedimentasi di stasiun lamun jarang lebih besar dibanding pada stasiun lamun sedang dan padat. Laju sedimentasi sangat dipengaruhi oleh parameter kualitas air terutama kecepatan arus dan kedalaman. Hasil analisa uji Korelasi Pearson sebesar menunjukkan adanya perbedaan signifikan antara Laju sedimentasi pada kerapatan lamun yang berbeda di pulau Panjang Jepara.
Panjang island is one of the waters area in Jepara that have various aquatic ecosystems, such as seagrass which is habitat for aquatic biota. Ecologycally, seagrass has several important functions in the coastal areas, one of which serves to stabilize the soft bottom where more species grow, especially with it’s dense root system and crossing each other. The research aims to determine sedimentation rate in different seagrass density and to determine relation of seagrass density to sedimentation rate at the Panjang island. The research method used descriptive in whitc fact finding be interpreted correctly. Mapping os seagrass distribution method was done to classified 3 stations of namely ‘lisht’, ‘medium’, ‘dense’ in a same area (10m x 10m). 1m x 1m cuadrant transect was used to count the seagrass stands at each square meter. The result showed there are 5 species of seagrass in the third station ie Thalassia sp (65,292%), Cymodocea sp (18,539%), Enhallus sp (6,099%), Halodule sp (4,557%) dan Syringodium sp (5,512%). the sedimentation rate at the ‘lisht’ station of seagrass bed is bigger compared to the ‘medium’ and ‘dense’ stations. The sedimentation rate is strongly influenced by the water quality parameter,especially current and depth. The results of Pearson correlation analysis test shown a significant difference between the sedimentation rate at different seagrass density in the Panjang island of Jepara.
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