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All Journal Prosiding Forum Geografi Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Sains Natural: Journal of Biology and Chemistry Jurnal Segara Scripta Biologica BioEksakta : Jurnal Ilmiah Biologi Unsoed

Erwin Riyanto Ardli

Fakultas Biologi Universitas Jenderal Soedirman, Purwokerto

Author-ID : 753212

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Veterinary

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THE MONITORING OF MANGROVE VEGETATION COMMUNITY STRUCTURE IN SEGARA ANAKAN CILACAP FOR THE PERIOD OF 2009 AND 2015 Steni Dwiyanti Koswara; Erwin Riyanto Ardli; Edy Yani
Scripta Biologica Vol 4, No 2 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Over-exploitation and land-use conversion into aquaculture ponds have damaged the mangrove ecosystem. The extreme environment condition resulting in sedimentation led to the reduction of lagoon area and eventually of mangrove vegetation community. It was, therefore, necessary to conduct sustainable mangrove management through the monitoring system. Changes in the mangrove community were monitored periodically by evaluating width changes and land cover distribution. This study aimed to monitor the structure of mangrove community and changes occurring for the period of 2009 and 2015 by applying the purposive sampling method. The samples were mangrove vegetation community at several different locations. The samples were taken from nine stations with three replicates. There were 14 species of mangrove from six families. Mangrove trees were mostly found in the western area, while mangrove sapling and seedling mostly found in the east. Most of the stations showed a moderate level of diversity index and good productivity except station four. Mangrove forest in Segara Anakan had significant changes from 2009 up to 2015 due to the reduction of mangrove diversity.

STUDI MORFOMETRI DAN TINGKAT HERBIVORI DAUN MANGROVE DI SEGARA ANAKAN CILACAP Erma Septyaningsih; Erwin Riyanto Ardli; Ani Widyastuti
Scripta Biologica Vol 1, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Mangrove communities are part of the natural coastal ecosystems that have a vital role, such as the greatest source of organic material for the surrounding aquatic environment. A variety of ecological phenomenon often happens recently, either directly or indirectly affects the change of mangrove vegetations. Leaf is one of the plant organs that change shape according to the condition of the mangroves and the aquatic environment where the plant lives. The common changes of the leaves are the symmetry (morphometry), the size, and the shape. Mangrove leaves are also subjected to herbivory (predation), that will result in reduced leaf area of the photosynthesis and lowered the production of organic matter to the surrounding waters. This research aimed to determine the morphometric variation and herbivory rates of mangrove leaves at Segara Anakan Cilacap. Mangrove samples were Aegiceras corniculatum, Avicennia marina, Ceriops tagal, Rhizophora apiculata, and Sonneratia caseolaris. The study used survey method with stratified random sampling technique. The results showed morphometric variations of the five species were three variations, while the average herbivory rate from highest to lowest were: Avicennia marina (7.46%), Sonneratia caseolaris (6.91%), Rhizophora apiculata (4.08%), Aegiceras corniculatum (3.42%) and Ceriops tagal (3.00%). The difference of age and species of leves affected the herbivory level.

THE DIVERSITY OF STONY CORAL AND THE TENDENCY TO BLEACH BASED ON LIFEFORM IN THE TENGAH PATCH-REEF OF KARIMUNJAWA ISLANDS Aradea Bujana Kusuma; Erwin Riyanto Ardli; Romanus Edy Prabowo
Scripta Biologica Vol 5, No 1 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Coral reefs, the habitat of tens of thousands of marine species, are an ecosystem with the highest biodiversity. Several threats, however, have impaired coral reefs. One having a potentially catastrophic effect is the increasing temperature of the ocean that leads to a coral bleaching event. This study aimed to determine the diversity of stony coral based on their lifeform, to assess the condition of reefs by measuring percent cover of live coral, and to determine the bleaching occurrence based on the stony coral lifeform in the Tengah patch-reef of Karimunjawa National (Marine) Park. The research was a visual survey with line intercept transects (LIT) used to collect data. The data were presented as percent cover of living coral and their lifeforms. The result showed the diversity of coral in the Tengah patch-reef was very high as indicated by the presence of all coral lifeforms in the study site. The most diverse lifeform was found at 10 m depth with 13 lifeforms, while the lowest lifeform was found at 3 m depth with ten lifeforms. The most extensive live coral cover was found at 3 m depth estimated around 73.71%, and the the lowest coverage was found at 10 m depth, no more than 50.42%. The bleaching event was found in Acropora branching and Acropora digitate at the 3 m depth

Development of A Simple Method for Detecting Mangrove Using Free Open Source Software Anang Dwi Purwanto; Erwin Riyanto Ardli
Jurnal Segara Vol 16, No 2 (2020): Agustus
Publisher : Pusat Riset Kelautan

Mangrove forests are becoming attractive natural charms and make everyone to take advantage of the existence of these coastal ecosystems both directly and indirectly. However, the condition of mangrove forests is threatened by their presence due to environmental factors around them. Sustainable mangrove monitoring efforts must always be increased to support the preservation of the mangrove ecosystem. The purpose of this study is to develop a fast and easy mangrove forest identification method based on remote sensing satellite imagery data. The research location chosen was the mangrove area in Segara Anakan, Cilacap. The data image used is Landsat 8 image acquisition on December 3, 2017 with path/row 121/065 obtained from the LAPAN Pustekdata Landsat catalog. The methods used include the Optimum Index Factor (OIF) method for selecting the best channels and the supervised classification method using the Semi-Automatic Classification Plugin (SCP) contained in open source software and provides three algorithm choices for the classification process including Minimum Distance, Maximum Likelihood and Spectral Angle Mapping. The results show the combination of RGB 564 (NIR+SWIR+RED) was the best in the identification of mangrove forests and the Maximum Likelihood classification algorithm was the most optimal in distinguishing mangrove and mangrove classes from both Macro Class and Class levels. The results of the calculation of the area show the mangrove area of 7,037.16 ha. The developed method can produce information on the distribution of mangroves at research sites more quickly, easily, effectively, and efficiently.

Biologi Ikan Uceng (Nemachilus fasciatus C.V.) di Sungai Banjaran Kabupaten Banyumas Slamet Risyanto; Erwin Riyanto Ardli; Isdy Sulistiyo
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 29, No 1 (2012)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2012.29.1.235

A research on fish biology Nemachilus fasciatus CV was conducted in River Banjaran Banyumas. The purpose of this study was to assess the biological aspects, including the nature of growth, Gonado somatic index, fecundity, sex ratio and natural food habits. The method used is survey, the technique used was stratified random sampling. Banjaran river was divided into nine stations: three stations on the upstream side of the river, three stations in the middle of the river and three stations on the river downstream. The results showed the data aspects of the biology of N. fasciatus in rivers Banjaran was allometrik growth, the gonado somatic index ranged from 5.40 to 17.46%. The highest fecundity of 7,567 items found in fish N. fasciatus which has a total length of 74 mm and 3.25 g body weight. Fecundity was as low as 1,665 points with fish body length of 58 mm and 2.02 g body weight. The sex ratio is 1:1,25. The natural food with the highest frequency of occurrence was on Pediastrum and low frequency of occurrence is in Cosmarium and Bronchionus.

Inventarisasi Teritip Non-Indigenous yang Menempel pada Ocean Going Vessel di Pelabuhan Tanjung Intan Cilacap Romanus Edy Prabowo; Erwin Riyanto Ardli
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 27, No 2 (2010)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2010.27.2.195

Portof Tanjung Intan Cilacapis one of four major international shipping ports located in JawaIslandand among 85 ports throughout Indonesia. International shipping ports are exposed for non-indigenous species including barnalces as a consequence of shipping traffic. Barnacle is the most common marine fouling found in ship’s hull and ballast water of ocean going vessel. This work was aimed at knowing which barnacle species were passively transported on such vessels hulls, in order to map and monitor non-indigenous species invasion in the area. Four vessels of different origins were investigated between April and November 2009. Among four vessels, three of them were clean. A cosmopolite non-invasive species were found on a ship of Ukrainan origin, Amphibalanus amphitrite., which also occur dominantly in the port of Tanjung Intan Cilacap. This port was considered at no introduction risk of non-indigenous species.

Kajian Perubahan Bioekologi pada Restorasi Ekosistem Mangrove di Segara Anakan Cilacap Erwin Riyanto Ardli; Ani Widyastuti; Edy Yani
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 1 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.1.291

Mangroves are coastal ecosystems that have a very large role for humans and ecosystems in the vicinity. Mangrove condition in Indonesia, including in Segara Chicks Cilacap experiencing enormous pressure resulting in damage to the mangrove ecosystem. Mangrove restoration is the process of return of mangrove ecosystems of the conditions are broken into previously conditioned as well. The general objective of this study was 1) determine the conditions and amendments BioEkologi mangrove ecosystem restoration in the area of results Segara Chicks. Specific objectives in the study the first year is to determine: 1) the community structure of mangrove ecosystems (vegetation and fauna associations) at a restoration site in the region Segara Chicks, 2) the spatial variation community mangrove ecosystem in the area of restoration, and 3) the condition of the environmental factors that support the mangrove restoration in the region Segara Chicks. The method used was survey method with the technique of sampling cluster random sampling. The data obtained were analyzed multivatiate covering biodiversity analysis, cluster analysis, multi-dimensional sclae (MDS), and Bio-env using PRIMER-E program. The study shows the restoration of mangrove vegetation in the region have relatively low diversity (H '<1), and in areas that have not been restored only dominated shrub species (Acanthus and Derris). Environmental factors generally favor mangrove Vegetasia life, and have the same tendency for each restoration location with a level of similarity> 95%.

Bioprospektif Perairan Berdasarkan Produktivitas : Studi Kasus Estuari Sungai Serayu Cilacap, Indonesia Nur Laila Rahayu; W. Lestari; Erwin Riyanto Ardli
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 34, No 1 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2017.34.1.405

The high changes of Serayu River land use is resulting the high of load particle sedimentation into the body of water. Turbidity will accumulate in the downstream or estuaries which would have an impact on biota, especially plankton as primary productivity and secondary productivity. This research is conducted with a survey method and purposive sampling technique. Estuary Serayu River is divided into 5 stations, starts from the nearest to the sea (1) with 26 ‰ salinity and the furthest stations from the sea (5) with 8 ‰ salinity. Samples of water and plankton are taken at the time of high tide and low tide every month, for 4 months (August, September, October, and November 2016). The obtained data is analyzed by PCA to study the environmental factors towards primary productivity and secondary productivity. Based on the research result environmental factors has relation waters estuary productivity of Serayu river on the highest and lowest tide those are lightness, level TSS and pH.

Kualitas Air dan Komunitas Zooplankton di Kawasan Segara Anakan Bagian Timur, Cilacap Piranti, Agatha Sih; Priska, Amalia; Riyanto, Erwin Ardli
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3537

Water quality is a water condition that can be measured and tested based on certain parameters. Measurement of environtmental factors are divided into three, there are physical, chemistry, and biology. One of the the biological indicators which used to determine changes in water quality is zooplankton. Segara Anakan Cilacap waters has received input of solid material from industrial and residential waste, which made the water quality and its effect on zooplankton need to be studied. The purpose of this study is to determine the water quality of Segara Anakan, to find out the diversity and abundance of zooplankton in Segara Anakan, and also to know the relation between the water quality and the abundance of zooplankton. The result of the research found that over all the water quality in Segara Anakan Cilacap is still quiet good. The diversity of zooplankton is still relatively low to medium which is composed of 43 species of 8 orders. The abundance of zooplankton is around 175 - 1907 ind.l-1. The most abundant species is Laophonte brevirostris and Leptodiaptomus ashlandii. The relationship between the environmental factor and the abundance of zooplankton based on the regression analysis result found that the abundance equation = 3427 - 271 Salinitas + 0.74 TDS + 1090 BOD with R2 value is 0.863.

Co-Authors Agatha Sih Piranti Agus Nuryanto Amalia Priska Anang Dwi Purwanto Ani Widyastuti Ani Widyastuti Aradea Bujana Kusuma Dyah Dwi Listyaningsih Edy Yani Edy Yani Edy Yani Elly Proklamasiningsih Eming SUDIANA Erma Septyaningsih Fredinan Yulianda Hasby Ghoni Asiddiqi Herna Maghfira Raudhatul Jannah Isdy Sulistiyo Listyaningsih, Dyah Dwi Mia Azizah Nur Laila Rahayu Priska, Amalia Rizka Isnaeni Romanus Edy Prabowo Slamet Risyanto Slamet Rosyadi Steni Dwiyanti Koswara Suprastini Suprastini W. Lestari Yasmin Shafira Nur Azizah

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