Morphometric study of seagrass Thalassia hemprichii in the coastal area of the Bahoi Village, West Likupang Sub-distritct, North Minahasa District

Abstract

The purposes of the morphometrics of seagrass Thalassia hemprichii study (based on samples taken from the coast of Bahoi Village, Likupang Barat Sub-district, North MInahasa District) were as follow: (1) to know the environmental conditions (temperature, salinity, pH, substrate) on the coastal area of Bahoi Village, (2) to describe the morphometrics of seagrass T. hemprichii,  and (3) to compare the morphometric of seagrass Thalassia hemprichii based on sampling stations. Data were collected using a survey method, to sample the seagrass T. hemprichii in three locations. As many as 30 individuals at each study location, were then measured using a digital caliper. The results of the measurement analyzed statistically show that the value was not significantly different. There is no significant difference in the size of the seagrass growth due to environmental conditions or environmental parameters that exist at these 3 stations and supposedly are still within the safe limits for seagrass growth. This evidence was gained based on the results of the ANOVA test (one way ANOVA) which was not significantly different.

Keyword : Morphometrics; Thalassia hemprichii; Seagrass; Bahoi Village; Coast

 

ABSTRAK

Tujuan Penelitian ini adalah mengetahui morfometrik Lamun Thalassia hemprichii berdasarkan sampel yang diambil di Pesisir Pantai Desa Bahoi Kecamatan Likupang Barat. yaitu : (1) Mengetahui kondisi lingkungan perairan lamun (suhu, salinitas, pH, substrat) di Pesisir Pantai Desa Bahoi, (2) Mendeskripsikan morfometrik dari lamun Thalassia hemprichii, (3) Membandingkan morfometrik lamun Thalassia hemprichii berdasarkan stasiun pengambilan sampel. Pengambilan data dilakukan dengan menggunakaan metode survei jelajah, dengan menggunakan Global Positioning System (GPS) dan dilanjutkan dengan pengambilan sampel Lamun Thalassia hemprichii sebanyak 30 individu pada setiap lokasi penelitian,   kemudian  diukur dengan menggunakan caliper digital. Hasil yang analisis diperoleh berdasarkan nilai statistik Thalassia hemprichii di Pesisr Pantai Desa Bahoi adalah tidak berbeda nyata. Tidak adanya perbedaan yang nyata dari ukuran pertumbuhan  lamun tersebut  disebabkan oleh kondisi lingkungan atau parameter lingkungan yang ada  pada ke 3 stasiun ini masih dalam batas yang aman bagi pertumbuhan Lamun. Dibuktikan dengan Hasil uji ANOVA satu jalur (one way ANOVA) diperoleh tidak berbeda nyata.

Kata kunci : Morfometrik; Thalassia hemprichii; Lamun; Desa Bahoi; Pesisir