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All Journal Bioma : Berkala Ilmiah Biologi SAINS DAN MATEMATIKA Jurnal Akademika Biologi REINWARDTIA BERITA BIOLOGI Biosaintifika: Journal of Biology & Biology Education Jurnal Biologi Tropika
Karyadi Baskoro
Biology Department, Faculty Of Sciences And Mathematics, Diponegoro University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Mathematics

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Journal : SAINS DAN MATEMATIKA

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Diatom Epipelik sebagai Bioindikator Kualitas Perairan Danau Rawa Pening Soeprobowati, Tri Retnaningsih; Hidayat, Jafron Wasiq; Baskoro, Karyadi
JURNAL SAINS DAN MATEMATIKA Volume 19 Issue 4 Year 2011
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

Diatom is a unicellular micro algae that had an important role in the food web and major contributor of oxygen in the water. The short life cycle, rapid reproduction, cosmopolite, wide spread distribution, variation in population, most are sensitive to the environmental changes, easily handle samples and identification, low cost of  sampling and data analysis may promote diatoms as a powerful bioindicator of water quality. The unique siliceous frustules make diatoms able to preserve in the sediment. Rawa Pening is a semi natural lake that administratively surrounded by four districts that consist of 27 villages. The main problem of this lake is erosion in the upstream and sedimentation in the downstream area as well as uncontrolled of aquatic plant growth, particularly water hyacinth (Eichornia crassipes) that induce lake shallowness. For people who live around Rawa Pening, this lake had been used for agricultural irrigation, fisheries, electricity power and tourism. To conserve the lake, as 3rd World Water Forum in Tokyo, March 2003 and 2006 – 2009 National Research Agenda there is a need of limnological research on the environmental changes. This research was conducted in order to study the potential used of epipelic diatom as bioindicator of lenthic ecosystem, particularly Rawa Pening Lake. Water and sediment samples were taken from 27 sites from inlet, outlet and water body of Rawa Pining Lake. There were 254 diatom species that consist of 8 Centrophycidae species and 246 Pennatophycidae species. The population varied between 6,989 and 3,781,000 individual/gram. Based on diversity indices of diatom, some part of Rawapening Lake was unstable, whereas the others were stable based on the diversity indices. Based on epipelic diatom, Rawa Pening Lake and its catchments area might be divided into 3 groups: agricultural lotic ecosystem, settlement lotic ecosystem and lenthic ecosystem. The high population of Synedra ulna, Nitzschia palea and Aulacoseira indicated that the lake is eutrophic that tent to be hypereutrophic. It was supported by high concentration of total nitrogen and phosphorous. The concentration of heavy metals Cadmium, Chromium, Copper and Lead were very high in sediment. However, the government of Indonesia has not yet set up sediment quality criteria. The following research would be proposed on this matter. Key words: diatom, bioindicator, water quality, Rawapening
STRUKTUR DAN KOMPOSISI VEGETASI HABITAT JULANG EMAS (Aceros undulatus) DI GUNUNG UNGARAN JAWA TENGAH Himmah, Izzun; Utami, Sri; Baskoro, Karyadi
JURNAL SAINS DAN MATEMATIKA Volume 18 Issue 3 Year 2010
Publisher : JURNAL SAINS DAN MATEMATIKA

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Abstract

Abstrak ---Julang emas  merupakan  salah  satu  jenis burung Bucerotidae  yang  seluruh  jenisnya  saat ini  terancam  punah  karena  jumlah populasinya  yang terus menurun. Salah  satu hal yang menyebabkan penurunan  tersebut  adalah  berkurangnya kawasan  habitat  yang  menyediakan  vegetasi  sebagai  sumber  pakan, tempat berlindung, bermain,  istirahat, mengasuh  dan membesarkan  anak-anaknya.  Gunung Ungaran menrpakan  salah  satu  habitat  buruag  Julang  emas  yamg  terdapat  di Jawa  Tengah.  Prevalensi  Julang  emas  di Gunung  Ungaran  hanya  terdapat  di Bukit Watuondo  dan  Bukit Gentong.  Tujuan  penelitian  ini adalah  untuk membandingkan  struktur  dan komposisi vegetasi antara Bukit  Watuondo dan Bukit  Gentong, serta mengetahui  ketersediaan  vegetasi  yang  berpotensi  sebagai  habitat  sarang  dan  sumber  pakan  di kedua  wilayah tersebut.  Bukit Watuondo  dan  Bukit Gentong  ditentukan  sebagai  stasiun  pengamatan.  Masing-masing  stasiun dibagi menjadi 5 titik  sampling.  Setiap  titik  sampling  dibuat satu  fransek  yang  terdiri atas  5 plot ulangan berukuran  10x10 m dan ditentukan  secara sistematik.  Analisis data menggunakan  Indeks Nilai  Penting,Indeks  Kemelimpahan  dan  Indeks  Keanekaragaman.  Hasil penelitian  menunjukkan  terdapat  90  jenis pohon yang  tergabung  dalam  37  famili. Bukit Watuondo  memiliki  indeks  keanekaragaman  jenis yang  lebih  rendah dibandingkan  Bukit Gentong.  Bukit Watuondo  lebih berpotensi  sebagai  habitat  sarang  dibandingkan  denganBukit Gentong.  Ketersediaan  Ficus  yang  lebih banyak  di Bukit  Gentong  merupakan  habitat  sumber pakan bagi Julang emas.  Melihat data vegetasi  yang diperoleh, perlu dilakukan penanaman  pohon Ficus agar populasi  Julang  emas  di Gunung  Ungaran  tidak mengalami  penurunan  dan  akhirnya  punah.Kata kunci: vegetasi,  habitat,  Julang  emas  (Aceros  undulatus),  Gunung  Ungaranpermalink : http://ejournal.undip.ac.id/index.php/sm/article/view/2961
Co-Authors A Rustama A Sjarmidi AMIR HAMIDY Arini, Priesty Dyah Djunijanti Peggie Fahris, Noor Fitri Nur Indah Sari Fuad Muhammad Imti Yazil Wafa Izzun Himmah Jafron Wasiq Hidayat Jumari Jumari, Jumari Jumari, J Khotimperwati, Lilih Lilih Khotim Perwati Mochamad Hadi Muhammad Abu Naim Muhammad Rasyidi Murningsih, M PENIDDA, ELBIBIYA IZZUL Peniwidiyanti, Peniwidiyanti Pusaka, Semerdanta Putra, M. Fadhil Randa Riyanto, Awal Rully Rahadian Rully Rahadian Sahroni, Deni Sri Utami Tamar, Irsyad Muhammad Tri Retnaningsih Soeprobowati Wawan Sujarwo Wiradarma, Huda Zuni Miftakhurrohmah