Food and the growth of introduced milkfish, Chanos chanos (Forsskal, 1775) in Sermo Reservoir, Kulon Progo


. Djumanto, Bayu Eko Pranoto, Vinta Seta Diani, Eko Setyobudi
 DOI  https://doi.org/10.32491/jii.v17i1.306

Abstract

The purpose of the research was to study feeding preferences and the growth of milkfish introduction into Sermo reservoir Kulon Progo regency. Research was carried out by introduction of milkfish juvenile which body length was ranges of 5-7 cm and weight of 0.6-1.0 g at a number of 10,000 individual fish. Fish sampling using gill nets was conducted monthly from May to October 2015. The captured milkfish brought to the laboratory for some measurements i.e length and weight of an individual fish, intestine length, and gut content investigation. The surface water plankton sample collected by a plankton net, then preserved in formaldehyde, identified and counted the number each plankton species. Data were analyzed to determine relative gut length, food type and feeding preferences, growth rate and length weight relationships. The results showed that relative intestinal length was 5.4 to 6.4, so milkfish categorized as herbivores. Phytoplankton was the only food found in the intestine fish size <14 cm, while zooplankton was found in fish size >15 cm. Zooplankton proportion in digestive tract increased as well as the size of milkfish. The dominant species of phytoplankton found in the digestive tract was Nitzschia sp., whereas zooplankton was Cyclop sp. and Diaptomus sp. The juvenile milkfish growth well in Sermo reservoir. The growth rate of daily length was ranged from 0.0084 to 0.2056 cm, while the growth rate of daily weight ranged from 0.0630 to 1.1182 g. The length weight relationship of milkfish formed an equation W = 0.0069 L 3 0186 with the regression index R2 = 0.98, so the growth of milkfish showed an isometric growth pattern. Further research is needed to determine the impact of the introduction of milkfish to the fish communities in the Sermo reservoir area.


Abstrak

Tujuan penelitian adalah untuk mengkaji makanan dan pertumbuhan ikan bandeng tebaran di waduk Sermo Kabupaten Kulon Progo. Penelitian dilakukan dengan menebar yuwana ikan bandeng yang panjang tubuh berkisar 5-7 cm dan bo-bot 0,6-1,0 g ke perairan Waduk Sermo sebanyak 10.000 ekor. Sampling ikan bandeng menggunakan jaring insang dilakukan tiap bulan sekali dari Mei sampai Oktober 2015. Ikan bandeng yang terjerat jaring dibawa ke laboratorium untuk diukur panjang, ditimbang bobot individu, dan dilakukan pembedahan untuk diambil saluran pencernaannya. Sampling plankton dilakukan dengan mengambil air permukaan menggunakan ember dan menyaring dengan plankton net, kemudian diawetkan dalam larutan formalin hingga identifikasi dan penghitungan jenisnya. Data dianalisis untuk me-nentukan jenis makanan dan pemilihan makanan, laju pertumbuhan, panjang usus relatif, dan hubungan panjang bobot. Hasil penelitian menunjukkan panjang usus relatif ikan bandeng sebesar 5,4-6,4 yang dikategorikan sebagai ikan herbi-vora. Jenis makanan yang ditemukan pada ikan berukuran <14 cm hanya fitoplankton, sedangkan zooplankton ditemu-kan pada ikan yang berukuran >15 cm. Proporsi zooplankton pada usus ikan semakin banyak seiring ukuran ikan bandeng. Jenis fitoplankton yang ditemukan dominan pada saluran pencernaan adalah Nitzschia sp., sedangkan zooplankton adalah Cyclop sp. dan Diaptomus sp. Yuwana ikan bandeng dapat tumbuh baik di kawasan Waduk Sermo. Laju pertumbuhan panjang harian berkisar 0,0084 - 0,2056 cm, sedangkan laju pertumbuhan bobot harian berkisar 0,06301,1182 g. Hubungan panjang bobot ikan bandeng membentuk persamaan W=0,0069 L 3,0186 dengan indeks regresi R2=0,98, sehingga ikan bandeng cenderung memiliki pola pertumbuhan isometrik. Penelitian lebih lanjut diperlukan untuk mengetahui dampak introduksi ikan bandeng pada komunitas ikan di Waduk Sermo.


Keywords

milkfish; food; growth; introduction; Sermo Reservoir

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References

Aqil DI, Putri LS, Lukman. 2013. Pemanfaatan plankton sebagai sumber makanan ikan bandeng di Waduk Ir. H. Juanda, Jawa Barat. Al-Kauniyah Jurnal Biologi, 6(1): 13-25

Bagarinao T. 1994. Systematics, distribution, genetics and life history of milkfish, Chanos chanos. Environmental Biology of Fishes, 39(1): 23-41

Barsanti L, Gualtieri P. 2006. Algae: Anatomy, Biochemistry, and Biotechnology. Taylor & Francis Group. New York. 301 p.

Biswas SP. 1993. Manual of method in Fish Biology. South Asian Publishers Pvt Ltd, New Dehli. 157 p.

Biswas G, Sundaray JK, Thirunavukkarasu AR, Kailasam M. 2011. Length-weight relationship and variation in condition of Chanos chanos (Forsskal, 1775) from tide-fed brackishwater ponds of the Sunderbans India. Indian Journal Geo-Marine Science 40(3): 386-390

Chong KC, Poemomo A, Kasryno F. 1984. Economic and technological aspects of the Indonesian milkfish industry. In: Juario JV, Ferraris RP, Benitez LV (Eds.) Advances in Milkfish Biology and Culture. Proceedings of the Second International Milkfish Aquaculture Conference, 4-8 October 1983, Iloilo City, Philippines. (pp. 199-213).

Coad BW. 2015. Review of the milkfishes of Iran (Family Chanidae). Iranian Journal of Ichthyology, 2(2): 65-70.

Djumanto, Setyobudi E. Sentosa AA, Budi R, Nirwati N. 2008. Reproductive biology of the yellow rasbora (Rasbora lateristiata) inhabitat of the Ngrancah River, Kulon Progo. Jurnal Perikanan, 10(2): 261-275.

Effendie. 2002. Biologi Perikanan. Yayasan Pustaka Nusatama, Yogyakarta. 163 hlm.

Franklin SM, Mei-Chen T, Sin-Ping Y. 2006. Milkfish (Chanos chanos ) culture: situations and trends. Journal of the Fisheries Society of Taiwan, 33(3): 229-244

Froese R, Pauly D (Editors). 2015. FishBase. World Wide Web electronic publication. www.fishbase.org (10/2015)

Geider RJ, MacIntyre HL. 2004. Physiology and biochemistry of photosynthesis and algal carbon acquisition. In : Williams PJ, Thomas DN, Reynolds CS (Eds). Phytoplankton Productivity Carbon Asimilation in Marine and Freshwater Ecosystem, Blackwell Science Ltd, Oxford. pp. 44-77

Habibie SA, Djumanto, Rustadi. 2015. Penggunaan otolit untuk penentuan umur dan waktu pemijahan ikan red devil Amphilophus labiatus [Gunther, 1864] di Waduk Sermo, Yogyakarta. Jurnal Iktiologi Indonesia, 15(2): 87-98

Nelson JS, Grande TC, Wilson MVH. 2016. The Fishes of the World, Fifth edition. John Wiley & Sons, Inc. Hoboken, New Jersey. 707 p

Oldfield RG, Mccrary J, Mckaye KR. 2006. Habitat use, social behavior, and female and male size distributions of juvenile midas cichlids, Amphilophus cf. citrinellus, in Lake Apoyo, Nicaragua. Caribbean Journal of Science, 42(2): 197-207.

Prayitno SB, Sarwan, Sarjito. 2015. The diversity of gut bacteria associated with milkfish (Chanos chanos Forskal) from northern coast of Central Java, Indonesia. Procedia Environmental Sciences, 2 (1): 375-384

Rahardjo MF. 2011. Spesies akuatik asing invasif. In: Kartamihardja ES et al. (Ed). Prosiding Forum Nasional Pemacuan Sumber

Daya Ikan III. Kementerian Kelautan dan Perikanan, Badan Penelitian Kelautan dan Perikanan, Pusat Penelitian Pengelolaan Perikanan dan Konservasi Sumberdaya Ikan, Balai Penelitian Pemulihan dan Konservasi Sumber Daya Ikan. 18 Oktober 2011. KSI 31:1-7

Rao LM, Sivani G. 1996. The food preferences of five commercially important fishes of Gosthani estuary. Indian Journal Fisheries, 43(2): 199-202.

Rustadi. 2009. Eutrofikasi nitrogen dan fosfor serta pengendaliannya dengan perikanan di Waduk Sermo. Jurnal Manusia dan Lingkungan, 16(3): 176-186

Setyobudi E, Subagja J. 2004. Struktur populasi dan potensi reproduksi nila (Oreochromis sp.) di Waduk Sermo Daerah Istimewa Yogyakarta. In: Isnansetyo A et al.(Ed).

Prosiding Seminar Nasional Hasil Penelitian Pertanian, Perikanan dan Kelautan. Fakultas Pertanian UGM, Yogyakarta, 25 September 2004. 370-378

Shirota A. 1996. The Plankton of South Vietnam: Freshwater and Marine Plankton. Overseas Technology Cooperative Agency. Tokyo. Japan. 463 p

Supardjo SD, Djumanto. 2014. Komposisi ikan hasil tangkapan jaring insang pada berbagai shortening di Waduk Sermo. Jurnal Perikanan, 16(1): 35-42.

Tjahjo DWH, Purnamaningtyas SE. 2009. Evaluasi kemampuan ikan bandeng dan nila tebaran dalam memanfaatkan kelimpahan fitoplanktondi waduk ir H Djuanda. In : Kartamihardja ES et al. (Ed). Prosiding Forum Nasional Pemacuan Sumberdaya Ikan II. Kementerian Kelautan dan Perikanan, Badan Penelitian Kelautan dan Perikanan, Pusat Penelitian Pengelolaan Perikanan dan Konservasi Sumberdaya Ikan, Balai Penelitian Pemulihan dan Konservasi Sumber Daya Ikan. PI 02: 1-11

Triyatmo B, Rustadi, Djumanto, Priyono SB, Krismono, Sehenda N, Kartamihardja ES. 1997. Studi Perikanan di Waduk Sermo: Studi Biolimnologi. Lembaga Penelitian UGM bekerjasama dengan Agricultural Research Management Project, Balai Pelatihan Pengembangan Pertanian. 65 hlm

Triyanto, Kamal MM, Pratiwi NTM. 2014. Pemanfaatan makanan dan pertumbuhan ikan bandeng (Chanos chanos) yang diintroduksi di Waduk Ir.H. Djuanda, Jawa Barat. Limnotek, 21(1): 64-73

Umar C, Sulaiman PS. 2013. Status introduksi ikan dan strategi pelaksanaan secara berkelanjutan di perairan umum daratan di Indonesia. Jurnal Kebijakan Perikanan Indonesia, 5(2): 113-120

Verlencar XN. 2004. Phytoplankton Identification Manual. National Institute of Oceanography, Dona Paula, Goa. 35 p

Wahyudewantoro G, Haryono. 2013. Hubungan panjang berat dan faktor kondisi ikan belanak Liza Subviridis di perairan Taman Nasional Ujung Kulon-Pandeglang, Banten. Bionatura-Jurnal Ilmu-ilmu Hayati dan Fisik, 15(3): 175-178

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