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All Journal Torani Journal of Fisheries and Marine Science Indonesian Journal of Mollusk Bambu Laut: Jurnal Pengabdian Masyarakat
Gunarto Latama, Gunarto
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Social Sciences

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 1 
Growth and Survival of Larvae (Trochus niloticus) as a Function of Light Density Latama, Gunarto
Jurnal Moluska Indonesia Vol. 8 No. 2 (2024): Oktober 2024
Publisher : Masyarakat Moluska Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54115/jmi.v8i2.27

Abstract

Light is an important factor controlling the activity of the nocturnal snail Trochus niloticus. The importance of light for the survival and growth of the larvae was studied in aquaria exposed to the sunlight and compared to similar groups shaded by black nylon net. A higher number of larvae metamorphosed in the aquarium exposed to sunlight, but the average survival rate was highest in shaded aquaria. Survival increased significantly as a function of increasing degree of shading. A survival of 93.03 ± 2.86 % after 49 days was achieved after proper shading, thereby eliminating the major problem ofhigh mortality of T. niloticus in aquaculture. No significant difference was observed between light intensity and growth.
Pengaruh Perbedaan Varietas Rumput Laut (Kappaphycus sp) dan Variasi Kedalaman Terhadap Pertumbuhan dan Produksi Rumput Laut Menggunakan Metode Budidaya “Top Down” A.R.Tassakka, Asmi Citra Malina; Latama, Gunarto; Rustam, Rustam
Torani Journal of Fisheries and Marine Science Vol. 24 No. 1 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.147 KB) | DOI: 10.35911/torani.v24i1.114

Abstract

The objective of this study was to investigate the effect of different types of Seaweed (Kappaphycus sp) and depth variation on the growth, production and carrageenan content of Seaweed using a top down cultivation method. Top down method combined the two methods of cultivation, the method of surface and off-bottom method. The types of Seaweed used were Kappaphycus alvarezii (Brown Maumere and Local Maumere) and Bali Seaweed (Kappaphycus striatum). This study was designed using a factorial experimental design, where is comprised of two factors: the types and water depth.  Parameters measured were daily growth rate, production and carrageenan content of Seaweeds.  The results showed that different types of Seaweed gave a significant effect (P<0.05) on daily growth rate and production of Seaweeds, however depth variation did not give a significant effect on daily growth rate and production of Seaweeds (P>0.05).  A combination of Seaweed types and depth variation did not give a significant effect on daily growth rate and production of Seaweeds (P>0.05). The highest carrageenan content was found in Local Seaweed (42.15%).  Brown Seaweed produced 40.59% of carrageenan content while Bali Seaweed produced 35.80%.
Karakteristik Jaringan Secara Histologi dari Strain Rumput Laut (Kappaphycus alvarezii) yang Terinfeksi Penyakit Ice-Ice Maulani, Resi Kumala; Achmad, Marlina; Latama, Gunarto
Torani Journal of Fisheries and Marine Science VOLUME 1 NOMOR 1, DESEMBER 2017
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v1i1.3796

Abstract

 Salah satu yang menyebabkan kegagalan budidaya rumput laut Kappaphycus alvarezii  yaitu terserangnya penyakitice – ice . Penyakit ice-ice merupakan penyakit yang umum terjadi pada rumput laut kappaphycus  dengan gejalaterjadinya pemutihan pada bagian thallus  dan penyakit ini dapat menyebabkan kematian massal pada produksirumput laut kappaphycus alvarezii . Salah satu cara yang dapat dilakukan untuk menganalisa bagian thallus  rumputlaut Kappaphycus alvarezii  yaitu uji histopatologi. Penelitian ini bertujuan untuk mengetahui perubahan bentuksel pada kondisi jaringan thallus  rumput laut K.alvarezii  yang terserang penyakit ice- ice  menggunakan metodehistopatologi. Pengambilan sampel rumput laut yang digunakan jenis Kappaphycus alvarezii  varietas coklat danhijau dengan 1 titik masing – masing varietas. Sampel rumput laut terdiri atas 2 sampel yaitu bagian thallus  yangterserang penyakit ice-ice  dan bagian thallus  tanpa gejala ice-ice . Sampel berumur 15 hari. Sampel yang dipilihuntuk pemeriksaan, dipotong setebal 0,5 - 1 cm. Sampel dimasukkan kedalam botol sampel untuk difiksasi ± 1minggu, yang berisi formalin 10%.Tahapan pembuatan preparat histopatologi terdiri atas fiksaksi, dehidrasi,clearing , impregnasi , embedding , cutting , staining , dan pemeriksaan dibawah mikroskop. Penelitian ini dianalisissecara dekskriptif kualitatif dengan melakukan pengamatan gambar histopatologi pada jaringan rumput laut K.alvarezii . Jaringan thallus  yang yang terserang penyakit ice-ice  mengalami perubahan bentuk sel, bagian lapisanluar terlihat tidak utuh, hancur, sehingga mengalami kematian sel dan bagian korteks dalam dinding sel terlihattidak teratur dan renggang, tidak terbentuk bulat atau lonjong, sebagian sel mengecil. Jaringan thallus  yang tidaknormal mengalami gejala Hipoplastik (terhambatnya atau terhentinya pertumbuhan sel) dan Nekrotik (kematiansel).Kata kunci : Kappaphycus alvarezii, penyakit ice – ice, Histopatologi, Hipoplastik, Nekrotik
The Effect of Combination of Nitrogen and Phosphate Enrichment on the Development of Seaweed Spores (Kappaphycus alvarezii) Sahir, Muhammad; Rustam, Rustam; Latama, Gunarto; Herliyanti, Herliyanti; Damayanti, Nur Ulfa
Torani Journal of Fisheries and Marine Science VOLUME 6 NOMOR 1, DESEMBER 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/torani.v6i1.22366

Abstract

Seaweed (Kappaphycus alvarezii) is one of the aquatic commodities that has the potential to be developed due to demand reaching the international market (Ari, SP and Risna Yusuf, 2018). Provision of seeds is still carried out by vegetative means (cuttings) (Runtuboy N and Slamet Abadi, 2018). However, there are problems, especially the provision of quality seeds, large scale, and does not depend on the season. Provision of seeds can also be done generatively. K. alvarezii can be developed by exploiting the nature of sexual reproduction through the development of spores which are characterized by the presence of cystocarp on the surface of the thallus (Juniarta I, 2016). However, the cystocarp in its growth really needs nutrition in order to produce spores of good quality and quantity. The nutrients needed are nitrogen and phosphate. This is due to the role of nitrogen as a constituent of protein and phosphate as a provider of energy (Pauwah A, et al., 2020). The purpose of this study was to determine the dose ratio of nitrogen and phosphate enrichment on cystocarp development. The research was carried out from November 2018 to February 2019, at the Seaweed Laboratory of the Takalar Brackish Water Aquaculture Fishery Center (BPBAPT). The study contained 6 treatments with 3 repetitions, namely Treatment A = Without enrichment (SW), Treatment B = 0.5 ppm N: 0.5 ppm P, Treatment C = 1 ppm N: 0.5 ppm P, Treatment D = 1.5 ppm N : 0.5 ppm P, Treatment E = 0.5 ppm N : 1 ppm P, and Treatment F = 0.5 ppm N : 1.5 ppm P. The results showed that the highest germination was in treatment D with an average of 56.95%. However, the research was not significantly different between treatments (p>0.05).
Penyuluhan Metode Budidaya Rumput Laut di Kel. Kalumeme, Kec. Ujungbulu, Kabupaten Bulukumba Badraeni, Badraeni; Hidayani, Andi Aliah; Nurkamilah, Besse Tenri; Trijuno, Dody Dh.; Zainuddin, Elmi N.; Saade, Edison; Latama, Gunarto; Azis, Hasni Y.; Ambas, Irfan; Djawad, M. Iqbal; Achmad, Marlina; Karim, Muh. Yusri; Rustam, Rustam; Aslamyah, Siti; Fujaya, Yushinta; Zainuddin, Zainuddin
Bambu Laut: Jurnal Pengabdian Masyarakat VOLUME 2, NOMOR 1, APRIL 2025
Publisher : Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/bambulaut.v2i1.42271

Abstract

Kecamatan Ujungbulu merupakan salah satu sentra rumput laut di Kab. Bulukumba yang memberikan peluang usaha yang sangat baik bagi peningkatan perekonomian keluarga. Keberhasilan budidaya rumput laut sangat dipengaruhi oleh musim, teknik dan metode budidaya yang tepat sehingga dapat memberikan pertumbuhan yang maksimal seperti pola tanam yang sesuai, penerapan metode tali bentang atau long line. Namun dalam perkembangan metode ini, Masih banyak masalah yang dihadapi oleh pembudidaya, seperti bobot awal bibit yang terlalu besar, jumlah bentangan per awal penanaman per areal yang terlalu banyak, dilakukan penanaman awal yang bersamaan dan penggunaan areal budidaya secara bersamaan per kelompok petani budidaya. Melalui program pengabdian kepada masyarakat dosen PS. BDP, maka dilakukan Penyuluhan Metode Budidaya Rumput Laut. Kegiatan ini dilakukan di Kantor Lurah Kalumeme, Kecamatan Ujungbulu, Kabupaten Bulukumba pada Sabtu 26 Oktober 2024. Sebanyak 30 peserta ikut dalam kegiatan ini yang berasal dari Gapoktan, penyuluh dan dari Dinas Perikanan Kab. Bulukumba. Materi penyuluhan yang disampaikan dipahami dengan baik oleh peserta melalui kegiatan diskusi setelah pemaparan materi.
Co-Authors Andi Aliah Hidayani Asmi Citra Malina A.R.Tassakka, Asmi Citra Malina Azis, Hasni Y. Badraeni, Badraeni Damayanti, Nur Ulfa Edison Saade Herliyanti Herliyanti, Herliyanti Irfan Ambas M. Iqbal Djawad, M. Iqbal Marlina Achmad Maulani, Resi Kumala Muh. Yusri Karim Nurkamilah, Besse Tenri Rustam Rustam Sahir, Muhammad Siti Aslamyah Trijuno, Dody Dh. Yushinta Fujaya Zainuddin, Elmi N. Zainuddin, Zainuddin