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LenteraBio
Published by Universitas Negeri Surabaya
ISSN : 22523979     EISSN : 26857871     DOI : -
Core Subject : Education, Agriculture,
Agriculture, Biological Sciences & Forestry Education
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol 1, No 2 (2012)" : 8 Documents clear
ANALISIS KADAR TIMBAL (PB) DAN KADMIUM (CD) PADA UDANG PUTIH (PENAEUS MARGUIENSIS) DI PANTAI GESEK SEDATI SIDOARJO TRIWAHYUDI DEDDY NOVIANTO, RIO T.W.D.
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Abstract

Pantai Gesek Sedati Sidoarjo merupakan daerah pesisir, sebagian besar mata pencaharian masyarakatnya sebagai nelayan. Hasil utamanya berupa udang putih (Penaeus marguienis). Pantai tersebut merupakan tempat bermuaranya tiga sungai yaitu Sungai Gedangan, Sungai Waru, dan Sungai Pondok Candra yang mempunyai potensi sebagai penghasil limbah yang mengandung logam berat timbal (Pb) dan kadmium (Cd) yang dapat mencemari perairan. Penelitian ini bertujuan untuk menganalisis kadar timbal (Pb) dan kadmium (Cd) pada udang putih (Penaeus marguienis), air, dan sedimen di Pantai Gesek Sedati Sidoarjo melalui observasi lapangan. Penelitian ini merupakan observasi, yaitu mengambil sampel dari tiga stasiun. Setiap stasiun diambil udang putih (Penaeus marguienis), air dan sedimen. Untuk menentukan kadar timbal (Pb) dan kadmium (Cd) digunakan metode Analisis Atom Serapan (AAS) yang dilakukan di Laboratorium Teknologi Air dan Industri ITS Surabaya. Untuk analisis kualitas air dilakukan di Laboratorium Ekologi UNESA. Data yang diperoleh dianalisis secara deskriptif yakni membandingkan dengan standar baku mutu berdasarkan Keputusan Menteri Lingkungan Hidup KepMen LH No. 51 Tahun 2004 tentang baku mutu air laut. Penelitian ini dilaksanakan pada bulan februari 2010. Hasil penelitian menunjukkan kadar timbal (Pb) dan kadmium (Cd) pada udang putih (Penaeus marguienis) sebesar 0,75 ppm dan 0,18 ppm, sehingga melampaui baku mutu yang diperbolehkan untuk Pb sebesar 0,008 ppm dan Cd sebesar 0,001 ppm. Pada air sebesar 0,60 ppm dan 0,21 ppm, sehingga melampaui baku mutu yang diperbolehkan untuk Pb sebesar 0,05 ppm dan Cd sebesar 0,01 ppm. Pada sedimen sebesar 0,40 ppm dan 0,15 ppm, sehingga masih berada di bawah standar baku mutu yang diperbolehkan untuk Pb sebesar 70 ppm dan Cd sebesar 1-2 ppm.
STRUKTUR MORFOLOGI DAN ANATOMI SYRINGODIUM ISOETIFOLIUM DI PANTAI KONDANG MERAK MALANG FRASIANDINI, INTAN
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Abstract

Syringodium issoetifolium merupakan tumbuhan tingkat tinggi (Angiospermae) yang mampu  beradaptasi untuk dapat hidup terbenam di laut sampai kedalaman 8-15 meter dan 40  meter di bawah permukaan laut di perairan tenang dan terlindung, serta sangat bergantung pada cahaya matahari yang masuk ke perairan. S. isoetifolium merupakan tumbuhan laut monokotil yang memiliki perkembangan daun, sistem perakaran dan batang yang lengkap. Kemampuan S. isoetifolium berkembang biak di perairan laut, karena mempunyai struktur morfologi dan anatomi yang khusus sehingga dilakukan penelitian mengenai S isoetifolium. Penelitian ini termasuk penelitian observasional. Analisis data dengan menggunakan analisis deskriptif kualitatif. Dalam penelitian ini yang dikaji karakteristik morfologi akar yang diteliti ialah sistem perakaran, sedangkan karakteristik anatomi yang diteliti ialah struktur epidermis, struktur mesofil, dan struktur berkas pembuluh. Karakteristik morfologi batang yang diteliti ialah bentuk batang dan posisi batang, sedangkan karakteristik anatomi yang diteliti ialah struktur epidermis, struktur korteks, struktur berkas pembuluh .Karakteristik struktur morfologi daun meliputi bangun daun, bentuk ujung daun, pangkal daun dan pelepah daun, sedangkan karakteristik anatomi yang diteliti ialah struktur epidermis, struktur mesofil, struktur berkas pembuluh. Hasil penelitian menunjukkan bahwa struktur morfologi dan struktur anatomi yang dimiliki oleh S issoetifolium ialah akar berupa akar serabut dan memiliki struktur anatomi berupa lapisan epidermis yang mempunyai trikhoblast, lapisan eksodermis, lapisan korteks, lapisan endodermis, dan berkas pembuluh utama yang terletak secara radial. Batang S. isoetifolium merebah, struktur anatomi batang dari S. isoetifolium berupa lapisan epidermis selapis, lapisan korteks yang mempunyai berkas pembuluh kecil yang menyebar secara melingkar bertipe konsentris amfikribal, berkas pembuluh utama terletak secara konsentris amfikribal. S. isoetifolium mempunyai bangun daun acicular dengan ujung daun runcing, pangkal daun runcing memiliki ligula dan memiliki pelepah, struktur anatomi daun S. isoetifolium berupa lapisan kutikula yang tipis dan berklorofil, lapisan epidermis, jaringan mesofil yang kaya akan kloroplas dan terdapat berkas pembuluh kecil yang menyebar sebanyak delapan buah, serta berkas pembuluh utama terletak secara konsentris  amfikribal.
PENGARUH KROMIUM HEKSAVALEN (VI) TERHADAP TINGKAT KELANGSUNGAN HIDUP IKAN NILA (OREOCHROMIS NILOTICUS) AYU MARETHA OKA WIRES, EDELYNNA A.M.O.
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Abstract

Chromium is a heavy metals, pollutants, and micronutrients that are important to the body. Type of chromium that has toxic effects to the organism is hexavalent chromium. This study aims to determine the effect of hexavalent chromium on the survival rate of tilapia (Oreochromis niloticus). Experimental studies conducted in the laboratory, using a Completely Randomized Design (CRD) with one treatment factor, namely the concentration factor. Concentrations of hexavalent chromium used is 0 ppm (control), 57,69 ppm, 59,94 ppm and 83,20 ppm. The results showed that hexavalent chromium significantly affect the survival rate of tilapia. The survival rate of tilapia in a row at a concentration of 57,69 ppm; 59,94 ppm, and 83,20 ppm for 54,78; 43,08, and 0,33. The conclusions of this study is that hexavalent chromium concentration of 57,69 ppm; 59,94 ppm, and 83,20 have a significant influence on the survival rate of tilapia
PENGARUH PEMBERIAN AIR REBUSAN AKAR DELIMA (PUNICA GRANATUM L.) TERHADAP MORTALITAS ASCARIS SUUM GOESZE. SECARA IN VITRO SANDIKA, BAYU
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Abstract

Pomegranate is one of plants that has a potential to treat askariasis because it contains high alkaloids and tannins, especially in the bark and roots. This study aims to prove the anthelmintic power of pomegranate root decoction water based on the rate of death or the mortality of A. suum Goesze. The research was carried out by soaking worms in the decoction water of pomegranate root which consists of four different concentrations, namely 0%, 21.56%, 43.12% and 64.68%. The research was conducted in three replications using a completely randomized design (CRD), then the data that was obtained is transformed using arcsin and analyzed by one-way ANAVA. From the research result, it can be concluded that the decoction water of pomegranate root affects to the mortality of A. suum Goesze. significantly after 48 hours exposure at a concentration of 64.68% and the characteristic of a dead worm is having a soft body and a transparent cuticle.
KEANEKARAGAMAN BIVALVIA DAN PERANANNYA SEBAGAI BIOINDIKATOR LOGAM BERAT KROMIUM (CR) DI PERAIRAN KENJERAN, KECAMATAN BULAK KOTA SURABAYA AMANDA PUTRI, RESTU Amanda
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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The Kenjeran Water is one of the marine tourism in Surabaya. It is located in the fishing village of Tambak Deres. Diversity in the Kenjeran Water is very diverse, one of it is the types of bivalves. As a place for recreation, Kenjeran Water are susceptible to contamination due to the human activity comes from the domestic waste. Consequently, many heavy metals have been entering the water. The existence of marine organisms such as bivalves can be used as a bioindicator of the water quality. This study was a descriptive study, using survey and observation. Implementation began in November-December 2011 with the method of transect for each station, per 100 metre area of Kenjeran Water Surabaya, which is representative to serve as a habitat for bivalves and to measure the water quality. The result of this study indicated that The Kenjeran Water Surabaya have 6 species, among of them are Perna viridis, Trisidos tortuosa, Mactra chinensis, Mercenaria mercenaria, Anadara granosa and Anadara floridana. The highest indices of diversity and abundance were 1.978 and 37.702. The average levels of chromium in the water, sediment, and the meat was 0.052 mg/l; 22.71 mg/l; and 49.25 mg/l. Based on analysis of chromium contamination, the Kenjeran Coastal?s water were polluted with chromium on medium level. Its Bivalves are unfit for consumption. Based on this, the bivalves are a bioindicator for Cr polluted waters.
PENGARUH PEMBERIAN FILTRAT DAUN ALANG-ALANG (IMPERATA CYLINDRICA L.) TERHADAP PERTUMBUHAN MISELIUM JAMUR TRICHODERMA SP. YANG HIDUP PADA MEDIA TANAM JAMUR TIRAM PUTIH (PLEUROTUS OSTREATUS) KURNIA WATI, DIAN Kurnia
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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The genus Trichoderma is cosmopolitan in soil, on decaying wood and vegetable matter. Infections in mushroom cultivation due to member of genus Trichoderma have come to be know as the ?Green Mould? dieases. Among the fungal pathogens, Trichoderma viridae are the most common dieases that can causes loss in Oyster mushroom (Pleurotus ostreatus) cultivation. If Trichoderma have been found on cultivated Oyster mushroom (Pleurotus ostreatus), the farmers  should throw it away the baglog, to prevant another baglog contaminated. This research aimed to investigate the effect of adding alang-alang (Imperata cylindrica L.) leves filtrate on the growth of Trichoderma sp. cultured on Pleurotus ostreatus media. This research use the Complete Randome Disign (CRD) with 5 treatment consentration. The concentration was:  10%,20%, 30%, 40% dan 0% (controlled). Each treatment replicated into five times. The result, which includes the width surface of mycellium colony of Trichoderma sp. and the width surface of mycellium colony of oyster mushroom (Pleurotus ostreatus), is descriptively analyzed. Based on the average width of both surface mycellium colony, it is known that there is significant different growth. The lowest width of Trichoderma sp. growth which found on the 40% concentration is 7,925 cm2. The highest width of oyster mushroom (Pleurotus ostreatus) growth which found on the 40% concentration is 2063,200 cm2.
PENGARUH PEMBERIAN FILTRAT BAWANG MERAH DENGAN BERBAGAI KONSENTRASI DAN ROOTONE-F TERHADAP PERTUMBUHAN STEK BATANG TANAMAN JAMBU BIJI (PSIDIUM GUAJAVA L) MAYASARI, EVA
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Psidium guajava L. has a grade potensial in domestic market. The aim of research was to find out the different of concentrations of shallots extract and Rootone-F on vegetative growth of Psidium guajava L. by stem cutting. Complete Randome Design was used as the research methode in with 4 different concentrstions and 6 replicates. The result revealed that the concentrations of shallot extract affected on the vegetative growth. Beside that the result showed that concentrations was 18%-20% showed the best result for all growth parameters observed i.e. number of shoots, number of leaves, leaves wide, and number of roots.
RESISTENSI PARAMAECIUM CAUDATUM TERHADAP LOGAM TEMBAGA (CU) DENGAN PEMBERIAN PAKAN PSEUDOMONAS FLUORESCENS PADA MEDIA JERAMI AJENG DIAH VITALOCHA, GALUH A.D.
LenteraBio: Berkala Ilmiah Biologi Vol 1, No 2 (2012)
Publisher : Universitas Negeri Surabaya

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Paramaecium caudatum to high copper metal in the water, because it can be used as an indicator of environtmental pollution. This study aims to determine the level of resistance to copper metal Paramecium caudatum with Pseudomonas fluorescens feeding hay on the media. So it can be used as a landing bioindicator determination of pollution. This study is a study with a control experiment, four treatmants and six repetitions. The study design used was Randomized Complete. Design concentration of copper used in this study was 1 ppm, 2 ppm, and 3 ppm. Data collection is done by calculating the population of Paramaecium caudatum every day for 10 days after breeding in a solution of copper metal. Data analysis using quantitative descriptive statistics where the data is establised in kurva growth. The result showed Paramaecium caudatum resistance to metalic copper in this study were at a concentration of 2 ppm.

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