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KOLABORASI DALAM PENGELOLAAN SUMBER DAYA PERAIRAN: KASUS AKSI KOLEKTIF ANTARA INDUSTRI DAN NELAYAN TRADISIONAL DI SUNGAI DONAN CILACAP Rosyadi, Slamet; Ardhi, Erwin Riyanto
Prosiding Vol 3, No 1 (2012)
Publisher : Prosiding

Show Abstract | Download Original | Original Source | Check in Google Scholar

Kebijakan publik yang mengatur sumber daya alam sering gagal untuk mengatasi konflik kepentingan di antara para penggunanya. Dengan menggunakan kasus Cilacap di Jawa Tengah, kami mengkaji resolusi konflik yang diprakarsai oleh industri sebagai respons terhadap ketidakefektifan pemerintah daerah untuk mengatur penggunaan sungai baik sebagai zona konservasi maupun lalu lintas kapal. Dengan menerapkan kerangka teoritis berdasarkan konsep tindakan kolektif, kami menganalisis peran industri dalam mengatasi kegagalan kebijakan ditunjukkan oleh sungai-terkait konflik di antara pemerintah daerah, industri dan nelayan tradisional. Analisis kami menunjukkan bahwa tindakan kolektif dan tawar-menawar antara industri dan nelayan tradisional telah mendorong mereka untuk mengembangkan solusi atas persoalan mereka. Selain itu, kami menemukan bahwa resolusi konflik meniadakan biaya transaksi yang dikeluarkan oleh industri dalam bentuk biaya mengamankan lalu lintas kapal.

Assessment of Mangrove Ecosystem Degradation to the Population of Polymesoda erosa in Segara Anakan, Cilacap Listyaningsih, Dyah Dwi; Yulianda, Fredinan; Ardli, Erwin Riyanto
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5073

Segara Anakan is a unique ecosystem with lagoons, mangrove and lowland. One of biota living in mangrove ecosystem is Polymesoda erosa. The species is valuable both economically and ecologically. This study aims to determine population of P. erosa and to analyze its relationship with mangrove degradation in Segara Anakan, Cilacap. Purposive Random Sampling was used to collect the clams data and plots sampling techniques were applied to obtain vegetation data. The result shows that there are very weak correlations between P. erosa and mangrove. Based on GIS analysis, mangrove area in Segara Anakan was 8036.9 ha. P. erosa str ongly cor r elates to envir onmental components namely water content of soil, temperature and light intensity. People utilized P. erosa as source of food, income and land hoard.

Assessment of Mangrove Ecosystem Degradation to the Population of Polymesoda erosa in Segara Anakan, Cilacap Dyah Dwi Listyaningsih; Fredinan Yulianda; Erwin Riyanto Ardli
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5073

Segara Anakan is a unique ecosystem with lagoons, mangrove and lowland. One of biota living in mangrove ecosystem is Polymesoda erosa. The species is valuable both economically and ecologically. This study aims to determine population of P. erosa and to analyze its relationship with mangrove degradation in Segara Anakan, Cilacap. Purposive Random Sampling was used to collect the clams data and plots sampling techniques were applied to obtain vegetation data. The result shows that there are very weak correlations between P. erosa and mangrove. Based on GIS analysis, mangrove area in Segara Anakan was 8036.9 ha. P. erosa str ongly cor r elates to envir onmental components namely water content of soil, temperature and light intensity. People utilized P. erosa as source of food, income and land hoard.

ANALISIS STOK KARBON HUTAN MANGROVE PADA BERBAGAI TINGKAT KERUSAKAN DI SEGARA ANAKAN CILACAP Mia Azizah; Erwin Riyanto Ardli; Eming Sudiana
JURNAL SAINS NATURAL Vol. 3 No. 2 (2013): Sains Natural
Publisher : Universitas Nusa Bangsa

Cabrbon Stock Analysis of Mangrove Forest in Every Damaged Level in Segara Anakan CilacapÂ Â Â Â Â Â Â Â Mangrove is a specific vegetation type, found in tropical and subtropical beach area which located in Cilacap Â at a sloping beach area near the mouth of a river and the beach protected from the waves. Segara anakan is one of mangroves region which located at 108 Âº 46'-109 Âº 03 'E and 07 Âº 34' - 07 Âº 47 'South Latitude. Human activities series in Segara anakan mangrove lead the damage of this region, it affects to the ecological and biological or mangrove function as carbon storage place. The aims of this research was to analyze the damage level of mangrove in Segara anakan, Cilacap; to know the spatial distribution of mangrove damage level in Segara anakan; analyze the amount of biomass and carbon stocks at various of damage level in Segara anakan, and to know the number corelation of carbon stocks with damage level in Segara anakan, Cilacap.The research used survey method with purposive random sampling that determine the sampling location based on the damage level. Damage analysis usedÂ assessment teristis method (field survey) and than spasial distribution used surfer 9.0 and ArcView GIS 3.2. Biomass analysis and the amount of carbon stock used descriptive methods, damage level correlation and the amount of carbon stock used Pearson correlation analysis (SPSS software vs. 19).The result was Segara anakan mangrove, Cilacap currently was divided into not damage (7 station), damaged (3 station) andÂ heavily damaged (5 station) categories. The amount of biomass and carbon stocks in not damaged area (57,67 tons/ha and 26,50 tons/ha); damaged area (23,40 tons/ha and 10,74 tons/ha, and the heavily damaged area (9,49 tons/ha and 4,37 tons/ha). The destruction of mangrove forest affected the amount of biomass and carbon stocks in Segara anakan, Cilacap.Keywords : mangrove,Â carbon stock, damage level, Segara Anakan CilacapÂ ABSTRAKÂ Â Â Â Â Â Â Hutan mangrove merupakan tipe vegetasi khas, terdapat di daerah pantai tropis dan subtropis yang tumbuh subur di daerah pantai yang landai di dekat muara sungai dan pantai yang terlindung dari hempasan gelombang. Segara Anakan adalah salah satu kawasan hutan mangrove yang terletak pada koordinat 07Âº34â€™ - 07Âº47â€™ LS dan 108Âº46â€™- 109Âº03â€™ BT. Serangkaian aktivitas manusia di kawasan hutan mangrove Segara Anakan menyebabkan kawasan ini mengalami kerusakan, hal tersebut berpengaruh terhadap fungsi ekologis dan biologis serta fungsi hutan mangrove sebagai penyimpan karbon.Â Penelitian ini bertujuan untuk menganalisis dan mengetahui tingkat kerusakanÂ hutanÂ mangrove di Segara Anakan Cilacap; mengetahui distribusi spasial potensi stok karbon hutan mangrove di Segara Anakan Cilacap Â danÂ mengetahui korelasi jumlah stok karbon dengan tingkat kerusakan di Segara Anakan Cilacap.Penelitian ini menggunakan metode survei dengan menggunakan teknik purposive random sampling Â yaitu menentukan lokasi sampling berdasarkan Â pada tingkat kerusakan. Analisis kerusakan menggunakan metode penilaian teristis (survey lapangan) yang selanjutnya didistribusi spasial menggunakan surferÂ 9.0 dan Arcview GIS 3.2. Analisis biomassa dan jumlah stok karbon menggunakan metode deskriptif, korelasi tingkat kerusakan, dan jumlah stok karbon menggunakan analisis korelasi Pearson (Software SPSS vs. 19). Hasil yang diperoleh adalah hutan mangrove Segara Anakan Cilacap saat ini terbagi menjadi area dengan kategori tidak rusak (7 stasiun), rusak (3 stasiun) dan rusak berat (5 stasiun). Jumlah biomassa dan stok karbon di area yang tidak mengalami kerusakan (57,67 ton/ha dan 26,50 ton/ha), area yang rusak (23,40 ton/ha dan 10,74 ton/ha, dan area yang rusak berat (9,49 ton/ha dan 4,37 ton/ha). Kerusakan hutan mangrove berpengaruh terhadap jumlah biomassa dan stok karbon di Segara Anakan.Kata Kunci: mangrove, stok karbon, tingkat kerusakan,SegaraAnakan Cilacap

Hubungan Kualitas Air Denagn Kelimpahan Fitoplankton Di Segara Anakan Bagian Timur Cilacap Jawa Tengah Hasby Ghoni Asiddiqi; Agatha Sih Piranti; Erwin Ardli Riyanto
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 1 No 2 (2019): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Phytoplankton is the primary producer whose existence depends not only on the nutrient. The eastern part of Segara Anakan waters experienced changes where the decline in quality which received input from organic and inorganic wastes and residential, industrial and factory wastes of Holcim and Pertamina factories. The purpose of this research is to study the water quality and to study the relationship between water quality and abundance of phytoplankton at the eastern part of Segara Anakan. The result showed that Water quality in Segara Anakan waters in the eastern part of Cilacap consists of several parameters that beyond the quality standards according to the Keputusan Menteri Lingkungan Hidup No. 51 of 2004 such as pH, Nitrate, Ammonia, Phosphate, and TSS. Water temperature is a physical factor which has a strong negative correlation with the abundance of phytoplankton, followed by TSS as a physical factor which has a positive correlation. The chemical factor which has a positive correlation with abundance are TDS, Nitrite and pH, followed by Phosphate, Salinity, Ammonia, and Nitrate which has a negative correlation with the abundance of phytoplankton. Key Words: Environmental factor, phytoplankton, Segara Anakan, Spatial variation, temporal variation.

BIOMASS AND CHLOROPHYLL ANALYSIS OF Ceriops tagal IN DIFFERENT NURSERY MEDIA Herna Maghfira Raudhatul Jannah; Erwin Riyanto Ardli; Elly Proklamasiningsih
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 3 No 3 (2021): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2021.3.3.4545

Ceriops tagal is a major mangrove species that plays an important role in the mangrove ecosystem. Ceriops tagal is one type of mangrove that has benefits for various marine organisms such as fish, shrimp, nematodes, etc also can maintain the stability of the mangrove ecosystem. In rehabilitation, it is necessary to have a nursery. The addition of husk and husk charcoal to the nursery media can increase the absorption space for water, air, and plant nutrients. The research aims to (1) determine the effect of differences in nursery media with a mixture of husk and husk charcoal on mud media; (2) determine which nursery media has the best effect on biomass and chlorophyll content of C. tagal mangroves. This research started from planting the propagules of C. tagal in different composition growing media with husk and husk charcoal then calculated with ANOVA test 5% and 1% of the biomass in root, stem, leaves, and hypocotyl also chlorophyll content in leaves of C. tagal organ. Then proceed with the honest significant difference test 5% for the wet biomass of root, dry biomass of stem, root, and wet also dry biomass hypocotyl of C. tagal. Research obtained that modification of nursery media with husk and husk charcoal can increase dry biomass of root and stem also wet and dry biomass of hypocotyl in C. tagal organs. The media best media for increase the biomass of the C. tagal in each organ was media 5 (composed of mud + husk charcoal in ratio 2:1) and media 6 (composed of mud + husk + husk charcoal in ratio 1:1:1). The increasing dry biomass of root and stem also wet and dry biomass of hypocotyl are also affected by environmental factors such as pH content in the medium.

Kajian pendugaan Biomassa dan Stok Karbon pada Nypa fruticans di Kawasan Segara Anakan Bagian Barat, Cilacap Rizka Isnaeni; Erwin Riyanto Ardli; Edy Yani
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 1 No 2 (2019): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Pemanasan global terjadi karena adanya peningkatan Gas Rumah Kaca di atmosfer. Penyerapan karbon merupakan salah satu upaya yang dapat dilakukan untuk mengurangi peningkatan GRK. Satu diantara tumbuhan mangrove yang mampu menyimpan karbon dalam bentuk biomasa adalah nipah (Nypa fruticans). Tujuan dari penelitian ini adalah mengetahui biomassa dan stok karbon yang terdapat pada N. fruticans dan mendapatkan informasi mengenai model persamaan allometrik biomassa dan karbon N. fruticans di kawasan Segara Anakan bagian barat, Cilacap. Hasil perhitungan biomassa N. fruticans menunjukkan bahwa semakin besar diameter pohon maka kerapatannya semakin meningkat, dan semakin besar biomassa semakin meningkat stok karbon yang disimpan. Berdasarkan parameter yang diukur terdapat dua parameter antara lain diameter pelepah dan panjang pelepah N. fruticans. Penelitian ini menghasilkan rata-rata biomassa sebesar 59,1 ton.ha-1, dan karbon sebesar 25,4 ton.ha-1.Model allometrik yang terpilih yaitu Biomassa -8.91 + 0.048 DPb + 0.217 DPt + 0.441 DPa + 0.882 PP dengan nilai R2 adalah 80,8%. Persamaan allometrik konversi stok karbon pelepah adalah stok karbon -2.53 + 0.0293 PDb -0.107 PDt + 0.284 PDa + 0.425 PP dengan nilai R2 adalah 80.1%.

Kualitas Air dan Komunitas Zooplankton di Kawasan Segara Anakan Bagian Timur, Cilacap Agatha Sih Piranti; Amalia Priska; Erwin Ardli Riyanto
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.

Kerapatan dan Distribusi Genus Acanthus pada Area Kerusakan Mangrove di Segara Anakan Bagian Barat Cilacap Yasmin Shafira Nur Azizah; Erwin Riyanto Ardli; Edy Yani
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 2 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Mangrove merupakan salah satu ekosistem langka dan khas yang terdapat hanya 2 % di seluruh permukaan bumi. Ekosistem mangrove terluas di dunia berada di Indonesia. Ekosistem mangrove berperan dalam bidang ekologi, ekonomi serta sosial dan budaya. Hutan mangrove setiap tahun terus mengalami penurunan luas dan perubahan tingkat kerapatan akibat kerusakan. Salah satu tumbuhan yang terdapat di ekosistem mangrove adalah genus Acanthus. Genus Acanthus merupakan tumbuhan yang dapat digunakan sebagai bioindikator kerusakan mangrove dan dapat berkembangbiak secara vegetatif dan generatif. Tujuan dari penelitian ini adalah menghitung kerapatan dan distribusi genus Acanthus pada area kerusakan mangrove di Segara Anakan bagian barat Cilacap. Penelitian dilakukan dengan metode survei dengan teknik pengambilan sampel vegetasi mangrove purposive sampling pada 11 stasiun terpilih di Segara Anakan bagian barat Cilacap. Nilai kerapatan dan Pola distribusi genus Acanthus dianalisis menggunakan Surfer 15 untuk mendapatkan pola distribusi genus Acanthus. Nilai kerapatan dan faktor lingkungan dianalisis menggunakan BIOENV dengan Primer 5 kemudian dianalisis secara deskriptif. Nilai kerapatan genus Acanthus pada 11 stasiun terpilih yaitu 15.520 ind.ha-1. Pola distribusi genus Acanthus di Segara Anakan bagian barat Cilacap yaitu pola distribusi mengelompok (aggregate). Kata kunci: Acanthus, Mangrove, Kerusakan, Segara Anakan

DIVERSITAS DAN DISTRIBUSI IKAN DI SEGARA ANAKAN CILACAP Suprastini Suprastini; Erwin Riyanto Ardli; Agus Nuryanto
Scripta Biologica Vol 1, No 2 (2014)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Fish is one of the aquatic commodities with significant economic value, and Segara Anakan areas is a habitat for valuable fishes for local fisherman. Segara Anakan is a eutrophic waters and serves as nursery and spawning ground and also provide an optimal environment for several species fish larvae to grow, either sedentary or migratory species. Therefore it is suggested that diverse species inhabit Segara Anakan and different part of those areas has different species because different species commonly exhibit different habitat preferences. The objectives of this research were to determine the diversity and spatial distribution of fish species in Segara Anakan Cilacap. This research was a survey with the Cluster Random Sampling was implemented as sampling technique. Species diversity was analyzed descriptively, as well as the spatial distribution. The relationships between environmental parameters and spatial distribution were analyzed using Principal Component Analysis. Environmental factors such as temperature, pH, salinity, and water DO were measured. The result showed that Stolephorus indicus was the most dominant species in Segara Anakan. The spatial distribution of fishes in every sampling station was found fluctuated. The environmental factors and fish were found highly correlated.

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