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Structure of Riparian Vegetation and Its Implications for The Habitat Conditions of Arfak Rainbowfish, Melanotaenia Arfakensis at The Nimbai Stream, Manokwari, West Papua

Samakia : Jurnal Ilmu Perikanan

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Title Structure of Riparian Vegetation and Its Implications for The Habitat Conditions of Arfak Rainbowfish, Melanotaenia Arfakensis at The Nimbai Stream, Manokwari, West Papua
Struktur Vegetasi Riparia dan Implikasinya Terhadap Kondisi Habitat Ikan Pelangi Arfak, Melanotaenia Arfakensis di Sungai Nimbai, Manokwari Papua Barat
 
Creator Lefaan, Paskalina Th.
Peday, Hans Fence Zakeus
Leatemia, Simon Petrus Oktovianus
Sembel, Luky
Manangkalangi, Emmanuel
 
Subject arfak rainbowfish, Manokwari, riparian vegetation, stream
ikan pelangi arfak, Manokwari, sungai, vegetasi riparia
 
Description Riparian vegetation has an important role in maintaining water stability, one of which is the river. This study aims to describe the structure of riparian vegetation so that its implications can be seen for the conditions of rainbow arfak habitat on the Nimbai River. The study was conducted in three forest types, namely primary riparia forest, secondary riparia forest and open riparia forest. Sample collection of riparian vegetation was carried out by purposive sampling using sample plots. Plots measuring 2 m x 2 m are used to sample seedling and understorey growth, plots measuring 5 m x 5 m for growth at the stake level, while plots measuring 10 m x 10 m and 20 m x 20 m, for growth of pole and tree levels respectively. The identification results obtained a total of 35 species of understorey and 51 tree-level plants in all three types of riparian forests. Based on the analysis of vegetation structure, it is known that the condition of primary riparia forest and secondary riparian forest still relatively supports the life of arfak rainbow fish compared to open riparian forest. Higher tree level density associated with canopy cover which has implications for the temperature of the water to be colder and less fluctuating, input larger litter into the food chain in the river, and hold suspended particles into the river. Also, the function of riparian vegetation in spawning activities, substrate attaching eggs and nursery habitat for arfak rainbow fish larvae. The results of this study indicate the importance of riparian vegetation structure on the condition of rainbow arfak fish habitat. An understanding of the structure of vegetation is also a basic information for efforts to rehabilitate this endemic fish habitat to maintain the existence of a natural population.
Vegetasi riparia memunyai peran penting dalam menjaga kestabilan perairan, salah satunya adalah sungai. Penelitian ini bertujuan untuk mendeskripsikan struktur vegetasi riparia sehingga dapat diketahui implikasinya terhadap kondisi habitat ikan pelangi arfak di Sungai Nimbai. Penelitian dilakukan pada tiga tipe hutan, yaitu hutan riparia primer, hutan riparia sekunder dan hutan riparia terbuka. Pengumpulan contoh vegetasi riparia dilakukan secara purposif sampling menggunakan petak contoh. Petak berukuran 2 m x 2 m digunakan untuk mencuplik pertumbuhan tingkat semai dan tumbuhan bawah, petak ukuran  5 m x 5 m untuk pertumbuhan tingkat pancang, sedangkan petak ukuran 10 m x 10 m dan 20 m x 20 m, masing-masing untuk pertumbuhan tingkat tiang dan pohon. Hasil identifikasi diperoleh total 35 jenis tumbuhan bawah dan 51 tumbuhan tingkat pohon di ketiga tipe hutan riparia. Berdasarkan hasil analisis struktur vegetasi diketahui bahwa kondisi hutan riparia primer dan hutan riparia sekunder masih relatif mendukung kehidupan ikan pelangi arfak dibandingkan hutan riparia terbuka. Kerapatan tingkat pohon yang lebih tinggi berkaitan dengan tutupan tajuk yang berimplikasi terhadap suhu air menjadi lebih dingin dan kurang berfluktuasi, masukan serasah lebih besar ke rantai makanan di sungai, dan menyanggah partikel tersuspensi masuk ke sungai. Juga fungsi vegetasi riparia dalam aktivitas pemijahan, substrat penempelan telur dan habitat pembesaran larva ikan pelangi arfak. Hasil penelitian ini menunjukkan arti penting struktur vegetasi riparia terhadap kondisi habitat ikan pelangi arfak. Pemahaman mengenai struktur vegetasi juga menjadi informasi dasar bagi upaya rehabilitasi habitat ikan endemik ini untuk mempertahankan keberadaan populasinya alami.
 
Publisher Faculty of Science and Technology University Ibrahimy
 
Date 2019-04-04
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://journal.ibrahimy.ac.id/index.php/JSAPI/article/view/258
10.35316/jsapi.v10i1.258
 
Source Samakia : Jurnal Ilmu Perikanan; Vol. 10 No. 1 (2019): Samakia: Jurnal Ilmu Perikanan; 38-56
Samakia : Jurnal Ilmu Perikanan; Vol 10 No 1 (2019): Samakia: Jurnal Ilmu Perikanan; 38-56
2503-2283
2086-3861
10.35316/jsapi.v10i1
 
Language ind
 
Relation https://journal.ibrahimy.ac.id/index.php/JSAPI/article/view/258/281
 
Rights Copyright (c) 2019 Paskalina Th. Lefaan, Hans Fence Zakeus Peday, Simon Petrus Oktovianus Leatemia, Luky Sembel, Emmanuel Manangkalangi
https://creativecommons.org/licenses/by-nc/4.0