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Effect of Pure and Combine Hormone of Pregnant Mare Serum (PMSG) on Gonadosmatic Index, Hepatosomatic Index of Silver Pompano Fish (Trachinotus blochii) Wiwin Kusuma Atmaja Putra; Tengku Said Razai
Journal of Aquaculture Science Vol 2 No 1 (2017): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v2i1.14

Abstract

The research was title The Effect of Pregnant Mare Serum Gonadotropin (PMSG) Pure and Combinations against Gonadosomatik Index, Hepatosomatic Index Silver Pompano (Trachinotus blochii). The purpose of this research was to obtain the best hormone treatment to increase the gonadosomatic index and Hepatosomatic Index. This research used a Completely Randomized Design with 3 treatments and 3 replicates of fish. The treatments include Control (0.5 ml NaCl), PMSG (20 IU kg-1 fish body weight) and PG600 (20 IU. Kg-1 fish body weight). Parameters calculated include Gonadosomatic Index (GSI), Hepatosomatic Index (HSI) and Absolute Growth. The best results were PG600 treatment with Gonadosomatic Index (0.12±0.06), Hepatosomatic Index (2.29±0.15 %) and Absolute Growth    (85±31.32 g) for 4 weeks. The conclusion of this study is the provision of pure PMSG and combination with a dose of      20 IU. Kg-1 body weight can  increase gonadosomatik index, hepatosomatic index and absolute growth of Silver Pompano fish. Keywords : Silver Pompano Fish, PMSG, PG600, Gonadosomatic Index
Saprobic Index and Composition of Phytoplankton in the Sungai Jang, Tanjungpinang, Indonesia Tengku Said Razai; Thamrin Thamrin; Nofrizal Nofrizal; Viktor Amrivo; Ramses Ramses; Yusni Ikhwan Siregar; Imam Pangestiansyah Putra; Rika Kurniawan
ECOTONE Vol 1, No 2 (2020)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.1.2.p.47-56

Abstract

Environmental pollution that occurs in Tanjungpinang City, cannot be separated from the pollution of the aquatic ecosystem. Water pollution is caused by the presence of waste from residential activities, shops, industry, and other activities that produce waste. Likewise, what happens in the waters of the Sungai Jang, the activities of settlements, shops, industry can cause water pollution in this area, so a study is needed to see the extent of environmental pollution. The indicator used to determine the level of water pollution is by looking at the saprobity index through the phytoplankton community. This research was conducted by dividing the research stations based on differences in activity, namely; station 1 (settlements), station 2 (mangroves), station 3 (shops, industry), station 4 (reclamation). The results showed that the composition of the phytoplankton species found in the waters of the Sungai Jang, Tanjungpinang consisted of 17 species which were classified into 5 divisions. Diatomae types have the most number of species among other divisions, and the most dominating. The dominance of phytoplankton from the class Bacillariophyceae (Diatomae) cannot be separated from the role of nutrients in the water. The average saprobic index value of -0.39 is classified as Moderately Polluted (Meso Saprobik). Pollution that occurs is a result of organic waste from existing activities, causing an increase in nutrients. From the results of measurements in the field, the nutrient content (nitrate and phosphate) in the waters of the Sungai Jang had exceeded the quality standard.
Identifikasi, Keragaman dan Sebaran Caulerva sp Sebagai Komoditas Potensial Budidaya Pulau Bunguran, Natuna Tengku Said Razai; Imam Pangestiansyah Putra; Fadhliyah Idris; Try Febrianto
SIMBIOSA Vol 8, No 2 (2019): JURNAL SIMBIOSA
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/sim-bio.v8i2.2177

Abstract

Jenis angur laut Caulerpa sp saat ini menjadi komoditas ekspor sebagai produk makanan, obat-obatan, dan kosmetik. Caulerpa sp memiliki sebaran yang cukup luas terutama pada kawasan beriklim tropis. Jenis Caulerpa sp juga dijumpai hingga perairan Natuna. Kepulauan Natuna merupakan suatu wilayah di utara dari Provinsi Kepulauan Riau dengan potensi lautnya menyimpan sumberdaya yang beragam, termasuk komunitas anggur laut Caulerpa sp. Culerva sp  merupakan salah satu jenis tumbuhan laut yang memiliki nilai nutrien yang baik tertutama untuk kesehatan dan kosmetik, sehingga penelitian terkait dengan sebaran jenis dan komposisinya sebagai upaya awal untuk pengembangan budidaya perlu dilakukan. Penelitian dilaksanakan selama periode bulan Juli-September 2019. Sampling dilakukan pada 8 lokasi yang berbeda mulai dari kawasan Ranai Kota hingga Klarik. Pengambilan data jenis Caulerpa sp mengunakan metode transek garis sepanjang 100 meter kearah laut dengan kuadran ukuran 10 x 10 m, sebanyak 3 kali sampling per stasiun. Hasil penelitian ditemukan 3 spesies dari anggur laut Caulerpa sp yakni C. taxifolia, C. lentilifera, dan C. recemosa. komposisi tertinggi pada jenis C.taxifolia mencapai 53,7%. Hasil penelitian menunjukkan tingkat keanekaragaman yang rendah, keseragaman tergolong tinggi, dan dominansi yang rendah. Hanya ada beberapa stasiun dengan tingkat dominansi yang tinggi yakni stasiun 2 dan stasiun 6 masing-masing di dominasi oleh jenis C. taxifolia dan jenis C. lentilifera.