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Agung Nugroho
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Program Pascasarjana Universitas Lambung Mangkurat Gedung Pascasarjana Kampus ULM Banjarmasin Jl. Brigjen H. Hasan Basri, Kayu Tangi, Banjarmasin
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Tropical Wetland Journal
Published by Universitas Lambung Mangkurat
ISSN : 23387653     EISSN : 2654279X     DOI : -
Core Subject : Health, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Education Medicine & Pharmacology Other
The journal will accept any manuscripts related to tropical wetland issues. The articles in this journal may from dissertations, theses, research reports, scientific papers and articles reviews. This journal is published in every 2 (twice) in a year (July and December).
Arjuna Subject : Umum - Umum
Articles 3 Documents
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Search results for , issue " Vol 3, No 2 (2017)" : 3 Documents clear
A MATHEMATIC MODEL OF TWO MUTUALLY INTERACTING SPECIES WITH MORTALITY RATE FOR THE SECOND SPECIES Rahayu, Annisa; Yulida, Yuni; Faisal, Faisal
TROPICAL WETLAND JOURNAL Vol 3, No 2 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

One of the interactions that occur withinthe ecosystem is the interaction of mutualism. Such mutualism interactions can be modeled into mathematical models. Reddy (2011) study suggests a model of two mutually interactingspecies that assumes that each species can live without its mutualism partner. In fact, not all mutual species survive without their mutualism pairs. If it is assumed that the second species lives without its mutualism partner, the firstspecies, then the natural growth rate of the second species population will decrease (the mortality rate). The purpose of this research is to explain the model of two mutually interacting species with mortality rate for the second species, to determine the equilibrium point and the type of stability, and to simulate them with several parameters. This research was done by way of literature studies. The result of this research is the model of two mutually interacting species with mortality rate for second species modeled using Nonlinear Differential Equation System. In the model, it was obtained 3 (three) points of equilibrium, with each type and type of stability investigated. Next up from the stability, model simulations were done. Based on several simulationsconducted can be seen the value of parameters and initial values affect the population growth of both species. The interaction model of two mutual species will be stable if the first species survive and the second species over time will beextinct.
THE POTENTIAL OF KALANGKALA (Litsea angulata) SEED EXTRACT AS A NATURAL SPERMICIDE MATERIAL Akmal, Rommy; Rusmiati, Rusmiati; Santoso, Heri Budi
TROPICAL WETLAND JOURNAL Vol 3, No 2 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Kalangkala (Litsea angulata) is one of the endemic plants in the wetlands area inKalimantan which seeds are can reduce the quality of male mice spermatozoa such as motility and mobility. The purpose of this research is to know the potential of kalangkala seed extract on other parameters of spermatozoa quality, which are viability and morphology of male mice spermatozoa in an effort to obtain natural spermicide material. This research used five treatments by using twentyfive male mice. The design of this research was spermatozoa suspensions without being treated (Control = 0), spermatozoa suspensions +Na-CMC 0,5% (P1), spermatozoa suspensions + extract of kalangkala seed 0,1% (P2), spermatozoa suspensions + extract of kalangkala seed 0,3% (P3), and spermatozoa suspensions + extract of kalangkala seed 0,5% (P4), with five repititions for each treatment. The result of this research showed that thekalangkala seed extract reduce the percentage of viability of spermatozoa and increased the percentage of abnormal morphology of spermatozoa male mice. Therefore, kalangkala seed extract has potential as a natural spermicide.
PLANKTON COMMUNITY STRUCTURE ON FISH PONDS IN THE RIAM KANAN RIVER OF BANJAR REGENCY Ambarwati, Rieski; Krisdianto, Krisdianto; Slamat, Slamat
TROPICAL WETLAND JOURNAL Vol 3, No 2 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Aquaculture in Riam Kanan river receives watersupply from rivers and Riam Kanan reservoir from upstream to downstream and practices different irrigation and fertilization systems. This study was aimed to compare the planktoncommunity structure, to find out the physicalchemical parameters associated with the abundance of plankton and the fertility of the fish-farming ponds. The research was conducted at Mandiangin Freshwater Aquaculture Center (Balai Budidaya Air Tawar – BBAT), Karang Intan (Balai Benih dan Induk Ikan Air Tawar – BB-IAT) and Cindai Alus Minapolitan area by using the observationmethod. Water samples were taken by composite of 6 replicates at 12 stations. The parameters measured were temperature, visibility, pH, iron, free ammonia, nitrate, phosphate, DO, BOD and plankton analysis. Data were tested statistically with cluster, Pearson correlation and regression. The result shows that there are differences in plankton community structure in the fish ponds, shown by 5 cluster groups. The abundance of phytoplankton has a significant correlation with pH, temperature, DO, and free ammonia. The abundance of zooplankton also has a significant correlation with pH, DO, BOD, and free ammonia. The seed pond at BBAT Mandiangin is eutrophically dominated byBacillarophyta and Amoboezoa, while in BB-IAT Karang Intan and Cindai Alus are dominated by Cyanophyta and Rotifera. The inlet channel of BB-IAT Karang Intan and the broodstock pond belong to mesotrophic category, predominanceby Cyanophyta, Chlorophyta and Rotifer. BBIAT Karang Intan outlet ponds, BBAT Mandiangin inlet channel and Cindai Alus inlet pond are included in the oligotrophic category, predominance by Cyanophyta and Chlorophyta. Plankton community structure of the fishfarming pond varies even with the same ecological conditions.

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