KARAKTERISTIK MORFOLOGI IKAN GARING (Tor douronensis) BERDASARKAN TRUSS MORFOMETRIK PADA PERAIRAN YANG BERBEDA DI KABUPATEN PADANG PARIAMAN

Abstract

ABSTRAK

Penelitan ini bertujuan untuk mengetahui karakter morfologi pembeda utama dan mendeterminasi jarak kemiripan pada ikan Garing (tor douronensis) di habitat perairan yang berbeda. Penelitian dilakukan pada bulan Januari-Februari 2019 di Lubuk Larangan Nagari Batang Gasan, Lubuk Larangan Sungai Nareh Nagari Sikucur, Lubuk Larangan Batang Ulakan. Penentuan lokasi penelitian pengambilan contoh ikan dilakukan secara purposive sampling, ikan diambil sebanyak 15 ekor pada setiap lokasi penelitian. Pengukuran spesimen dengan manual kaliper pada sisi tubuh sebelah kiri, dengan 26 karakter morfometrik. Analisis data karakter morfometrik antar habitat di uji dengan One Way ANOVA sedangkan data pembeda utama di uji dengan Principal Componen Analysis (PCA). Hasil penelitian menunjukkan bahwa terdapat perbedaan antara ikan Garing (tor douronensis) Gasan dengan Nareh yakni 20 dari 26 karakter yang berbeda, Gasan dengan Batang Ulakan yakni 16 dari 26 karakter yang berbeda dan Nareh dengan Batang Ulakan yakni 5 dari 26 karakter yang berbeda. Terdapat perbedaan karakter morfologi ikan Garing pembeda utama dari karakter morfometrik adalah Panjang sirip dada  dengan nilai 0,967, awal sirip punggung – akhir sirip anal dengan nilai 0,963 dan Awal sirip anal – akhir sirip punggung dengan nilai 0,944. Populasi ikan Garing (tor douronensis) menjadi tiga kelompok yakni Lubuk Larangan Nagari Batang Gasan, Lubuk Larangan Sungai Nareh Nagari Sikucur, Lubuk Larangan Batang Ulakan

Kata Kunci : Garing, Lubuk Larangan,  truss morfometrik

ABSTRACT

This research aims to study the morphological characteristics of the Principal Component and determine the distance of similarity in Garing fish (tor douronensis) in different aquatic habitats. The study was conducted in January-February 2019 in Lubuk Larangan Nagari Batang Gasan, Lubuk Larangan Nareh Nagari Sikucur River, Lubuk Larangan Batang Ulakan. Determination of the location of the study to take samples was done by purposive sampling, as many as 15 fish were taken at each study location. Measurement of specimens with manual calipers on the left side of the body, with 26 morphometric characters. Morphometric character data analysis between habitats was tested with One Way ANOVA while the main distinguishing data was tested by Principal Component Analysis (PCA). The results showed the difference between Garing fish from Gasan and Nareh were 20 of 26 different characters. The sample from Gasan with Ulakan rivers were 16 of 26 different characters and The sample from Nareh with Ulakan rivers were 5 of 26 different characters. There are differences in fish morphological characters The main differentiating Garing fish (tor douronensis) of morphometric characters are the length of the pectoral fin with a value of 0.967, the start of the dorsal fin - the end of the anal fin with a value of 0.963 and the start of the anal fin - the end of the anal fin - the end of the dorsal fin with a value of 0.944. The population of Garing fish (tor douronensis) is divided into three groups namely Lubuk Larangan Nagari Batang Gasan, Lubuk Larangan Nareh River Nagari Sikucur, Lubuk Larangan Batang Ulakan.

Keywords: Garing, Lubuk Larangan,  truss morfometrik