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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Prosiding Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Biosaintifika: Journal of Biology & Biology Education Scripta Biologica Journal of Aquaculture and Fish Health BioEksakta : Jurnal Ilmiah Biologi Unsoed
Dwi Sunu Widyartini
Fakultas Biologi, Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Veterinary

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Journal : BioEksakta : Jurnal Ilmiah Biologi Unsoed

 1 
KEANEKARAGAMAN DAN DOMINANSI RUMPUT LAUT HIDROKOLOID PADA SUBSTRAT YANG BERBEDA DI PERAIRAN PANTAI KARANGTENGAHNUSAKAMBANGAN CILACAP Ardiyanto, Bayu; Insan, Achmad Ilalqisny; Widyartini, Dwi Sunu
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.2999

Abstract

The waters of Karangtengah Nusakambangan Cilacap have various types of substrates, namely sand, coral and mixture. Beach conditions with many types of substrates allow various species of seaweed to grow. Information regarding the diversity and dominance of seaweed producing hydrocolloid species has not been much studied in the waters of Karangtengah Beach. This study aims to determine the diversity and dominance of seaweed producing hydrocolloids on different substrates in the waters of Karangtengah Nusakambangan Cilacap. This study uses a survey method with a sampling technique that is the selected random transect method. Six transect lines were made perpendicular to the coastline and the distance between transects was 25 m. Each transect was made three plots, each plot measuring 1x1 m based on the substrate (coral, sand, and mixture). The main parameters observed were the amount of biomass and the number of species. Supporting parameters observed were environmental factors namely temperature, salinity, pH, current speed and depth. The number of hydrocolloid seaweed species found was 10 species of seaweed with details of 5 alginate-producing species, 3 agar-producing species, and 2 carrageenan-producing species. The diversity index value in the coastal waters of Karangtengah between 0,6-2,0 was classified as moderate diversity. The dominance index value in the coastal waters of Karangtengah between 0,2-0,6 was classified as low dominance.
Komposisi Jenis dan Kepadatan Rumput Laut Hydrokoloid berdasarkan Karakteristik Dasar Perairan di Daerah Intertidal Nusakambangan Timur Cilacap Widyartini, Dwi Sunu; Insan, Achmad Ilalqisny; kamsinah, Kamsinah
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 4 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3568

Abstract

Rumput laut hidrokoloid merupakan rumput laut yang mengandung agar, karagenan dan alginat yang banyak digunakan sebagai bahan baku industri. Penelitian ini bertujuan untuk mengetahui komposisi jenis hidrokoloid rumput laut dan kepadatannya berdasarkan karakteristik perairan dasar di daerah intertidal Nusakambangan Cilacap Timur. Perairan Nusakambangan Timur memiliki pusat pantai koral dan pantai karang berlubang yang memiliki substrat berupa pasir, koral, batuan vulkanik, dan pecahan koral. Penelitian ini menggunakan metode survei dan pengambilan sampel menggunakan transek berupa garis tegak lurus pantai menuju laut, setiap transek garis ditempatkan dengan plot kuadran (1 x 1m2) yang dipilih secara acak pada substrat keras dan lunak. Hasil penelitian ini, substrat karang di kedua pantai diperoleh 2-8 jenis rumput laut hidrokoloid, dengan komposisi jenis rumput laut tertinggi 57,6% pada substrat keras dengan kepadatan tertinggi pada jenis Gracilaria gigas; 440.6-1239.7 g/m2, Gracilaria gigas memiliki tipe percabangan dikotomus dengan bentuk talus silinder. Pada substrat campuran di pesisir Karang Tengah terdapat 4 jenis rumput laut hidrokoloid dengan komposisi 46,3% spesies hidrokoloid dengan kepadatan tertinggi pada spesies Padina australis; 387,7 g/m2. Padina australis berbentuk talus tidak bercabang.
Co-Authors A. Ilalqisny Insan A. Ilalqisny Insan Ardiyanto, Bayu Ardli, Erwin Riyanto Christiani, Christiani Endang Widyastuti Eti Ferawati H. A. Ilalqisny Insan, H. A. Ilalqisny Hanifah, Wahdini Heni Andriyani Hexa Apriliana Hidayah Ilalqisny Insan Indyaswan Tegar Suryaningtyas Insan, Achmad Ilalqisny Insan, Achmad Ilalqisny Jasmadi Kamsinah Kamsinah Ms Warsinah, Ms Nafis, Bayu Ashila Retno Ambarwati Romanus Edy Prabowo Sandi Permadi Sarwanto Sarwanto Sherly Sapulete Solikin Sulistyani Sulistyani Sulistyani Suparmo