Abstrak

Baca Juga : KAJIAN STRUKTUR KOMUNITAS LAMUN DI PULAU MATAHARI ACEH SINGKIL (Herli Saswito, 2015) ,

Baca Juga : PEMETAAN SEBARAN PADANG LAMUN DI PERAIRAN PULAU MATAHARI KECAMATAN PULAU BANYAK ACEH SINGKIL (Fauzan Aulia, 2015) ,

ngkan untuk kelimpahan tertinggi zooplankton adalah kelas crustacea yaitu sebesar 803 ind/l. indeks keanekaragaman (h’) plankton pulau matahari rata-rata berkisar 0,58 – 1,48, indeks keseragaman (e) rata-rata berkisar 0,55 – 0,63 dan indeks dominansi (c) rata-rata berkisar 0,33 – 0,67 dengan nilai yang rendah yang berarti tidak terjadi dominansi spesies tertentu. nilai indeks similaritas plankton antar stasiun memiliki kesamaan yang tinggi yaitu terdapat pada stasiun 1 dan 3 dengan nilai indeks 76 %. kata kunci: pulau matahari, struktur komunitas, lamun abstract the objectives of study were to determine the structure of plankton communities that include the abundance, diversity index, evenness, dominance and similarity of plankton in seagrass matahari island of district banyak island. this study was conducted in august 2014. this study used survey methods, sampling plankton was taken at 4 stations, each station had 5 repetitions. plankton sampling used a plankton net, and identification of plankton carried out in the laboratory of the faculty of marine and fisheries, syiah kuala university. method of identification used 5 point visual field. phytoplankton found in the island of the matahari was from the bacillariophyceae class and chlorophyceae class 14 genera. type zooplankton obtained consists of crustaceans and ostracod much as 3 genus. the highest abundance of phytoplankton seagrass matahari island is 15,754 ind/l of the class bacillariophyceae while the highest abundance of zooplankton are crustaceans that is equal to 803 ind/l. diversity index (h') plankton island in the sun on average ranging from 0.58 to 1.48, evenness index (e) the average ranged from 0.55 to 0.63 and dominance index (c) average range of 0.33 - 0.67 with a low value, which means not happen dominance of certain species. plankton similarity index values between stations have high similarity was found in station 1 and 3 with an index value of 76%. keyword: matahari island, community structure,

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