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T. Trijoko
Faculty of Biology, Universitas Gadjah Mada, Yogyakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Keragaman Genus Anadara Berdasarkan Karakter Morfologis dan Habitat di Perairan Pantai, Kota Tarakan, Kalimantan Utara Z. Zainuddin; Nyoman Puniawati Soesilo; T. Trijoko
Journal of Tropical Biodiversity and Biotechnology Vol 3, No 1 (2018): April
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1144.396 KB) | DOI: 10.22146/jtbb.27861

Abstract

Bivalves are actively captured to be used as foodstuffs and raw materials souvenirs. Bivalves have economic value that continues to be exploited. But there is no record of its biodiversity in the coastal waters Tarakan City. This research purposes were to study the members of the Genus Anadara species diversity, study of morphological characters and its habitats in the waters of Tarakan. The method used in sampling was transect methods. Four stations have been set i.e. Binalatung, Selayung, Juata and airport. The obtained bivalves were identified based on its morphological characters. Physicochemical of the water, substrate, and the substrate texture in each station were measured. The morphological data was analyzed using descriptive analysis, while the relationships between shells’ morphometric was analyzed using linear regression analysis.The result of this research showed that there are two  species, Anadara granosa and Anadara nodifera. Morphological character showed that there are radial ribs both of  species. Habitat character is dominated by sand and mud. Morphometric relationships shells can be used to distinguish each species.
Variasi Morfologis Udang Galah (Macrobrachium rosenbergii de Man, 1879) Hasil Inbreeding dan Outbreeding Populasi Probolinggo dan Mahakam Nurul Suwartiningsih; T. Trijoko; Niken Satuti Nur Handayani
Journal of Tropical Biodiversity and Biotechnology Vol 2, No 2 (2017): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1292.865 KB) | DOI: 10.22146/jtbb.29676

Abstract

Indonesia has high biodiversity, one of them is the diversity of giant freshwater prawn (Macrobrachium rosenbergii de Man, 1879). The giant freshwater prawn was easy to reproduce and has high nutritional value. This study was conducted to determine the morphological variation of inbreed and outbreed of Probolinggo and Mahakam (Mama, Gogo, Goma, and Mago) populations that was developed in Unit Kerja Budidaya Air Payau Balai Budidaya Udang Galah (UKBAP BBUG) Samas as a basic for seed selection. Research of morphological variation carried out by observing 12 morphological characters, four meristic characters and 52 morphometric characters in four populations. Analysis of basic morphometric characters using a statistical program to determine the linear regression and the significance of parameters. Analysis of morphological characters using a statistical program to make dendrogram showing the similarity of four populations. The result of morphometry shows that the ratio of cephalothorax and abdomen of Mago and Goma is lower than Mama and Gogo. When viewed from the ratio of the carapace and rostrum length, Mago produces the longest rostrum. So, when only carapace length is compared to abdomen length, Mago showed the greatest value. Gogo has the highest ratio of cephalothorax and abdomen, while Mago has the highest ratio of carapace and abdomen among populations. Morphological data analysis showed that Gogo and Goma had reached 76% similarity, Goma and Mama have a similarity of 68% while Mago has 52% similarity with another three populations.
Co-Authors Niken Satuti Nur Handayani Nyoman Puniawati Soesilo Suwartiningsih, Nurul Z. Zainuddin