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THE ASSESSMENT OF SENSITIVITY OF BIOTIC INDICES IN DETERMINING SYMPTOMS AND LEVELS OF DISTURBANCE USING MACROBENTHIC ASSEMBLAGE DATA Sapto Purnomo Putro
JOURNAL OF COASTAL DEVELOPMENT Vol 15, No 1 (2011): Volume 15, Number 1, Year 2011
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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a large number of techniques, including a variety of indices, have been proposed and developed forassessment. Structural and functional variability have been summarized through both univariate andmultimetric indices as integrative indicators in environmental monitoring programs. In general, multimetricindices are considered to be sensitive, stable, and robust, thus offer a promising approach for ecologicalassessment. This study is aimed to assess the degree of sensitivity for several indices in terms of their abilityto determine environmental changes. Based on macrofaunal data, several univariate and multimetric indiceswere used to assess and compare the level of disturbance at fallowed farm and reference (control) sites. Thetwo multimetric indices, the AZTI’s Marine Biotic Indices (AMBI) and Ecological Quality Ratio (EQR), wereused as integrative indicators to assess the categorisation of each sampled site. The results showed that acombination of multimetric index and univariate indices provide a better assessment. The categoriesdetermined by multimetric indices seem to be in accordance with level of disturbance expressed by thetrophic analysis, multivariate and graphical analyses used in this study. The AMBI has the ability to detectlarge scale differences among sites. However, AMBI was unable to discriminate slight changes in themacrobenthic assemblages between sites, as have been exposed by EQR.

Hubungan Faktor Fisika-Kimia Perairan Terhadap Kelimpahan Moluska di Area Keramba Jaring Apung Sistem Polikultur Teluk Awerange, Sulawesi Selatan Amalia Aininnur; Sapto Purnomo Putro; Fuad Muhammad
Jurnal Akademika Biologi Vol. 4 No. 4 Oktober 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Fish farming using floating cage has been conducted for a long time in Indonesia. Despite the benefits of aquaculture to meet the needs of the human protein, aquaculture has potential impact on the aquatic environment, especially due to the impact of organic enrichment. This study aims to determine the relationship of water physical-chemical on the abundance of mollusks as a biological agent to determine the level of environmental disturbance. This research was conducted in the waters of the Awerange Gulf, South Sulawesi. Mollusks samples were taken from two stations, namely the reference area and polyculture cage area with twice the sampling time and three replicates. Abiotic and biotic relationships conducted using multivariate approach (Principal Component Analysis / PCA, BIO-ENV) using Eucladian Distance matrix. Based on the results, there were 15 species consisting of 14 families and 2 classes (gastropods and bivalves). Families were most prevalent in both sites was Turritellidae. In general, water quality in the Awerange Gulf is considered normal at both locations. Results of ordination using PCA on abiotic factors indicated that the stations between reference area and polyculture cage area are clustered, implying the difference of both sites. BIO-ENV analysis results indicates that the abiotic factors that most influence the distribution and abundance of molluscs in the Awerange Gulf were DO, Carbon and Nitrogen contain (r = 0.457; BIO-ENV). Keywords : Mollusk, Polyculture Cage, Awerange Gulf, Abiotic Component

Komposisi dan Kemelimpahan Fitoplankton di Telaga Menjer, Wonosobo. Dyah Ayu Kumalasari; Tri Retnaningsih Soeprobowati; Sapto Purnomo Putro
Jurnal Akademika Biologi Vol. 4 No. 3 Juli 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Phytoplankton are the dominant primary producers in aquatic ecosystems, Phytoplankton are sensitive to environment as changes. Therefore, the phytoplankton is often used for bioindicators of water quality. The purpose of this study was to obtain information on the abundance, diversity, evenness, and dominance of phytoplankton in Menjer Lake and examine the condition of the water quality and its effects on phytoplankton abundance. Research on the composition and abundance of phytoplankton in Menjer Lake was conducted in May 2015. Phytoplankton samples were taken using a plankton net size 25 µk and identification of phytoplankton using SRC and the microscope. The composition of phytoplankton in Menjer Lake consist of 40 species from six divisions in the following order: Bacillariophyte (17 species), Chlorophyte (15 species), Cyanophyte (3 species), Chrysophyte (1 species), Chryptophyte (1 species ) and Dinoflagellate (3 species). Phytoplankton abundance was highest at the net culture (11.884 ind/ l), then the abundance of phytoplankton low at the outlet station (8.476 ind/ l). The result of analysis on Phytoplankton diversity of stasions at Menjer lake the value 2,27-2,62 that means of high diversity. Uniformity index (e) at Menjer lake the value 0,84-0,92, that means the condition of phytoplankton community include into stable. Dominance index (D) was highest at the outlet station phytoplankton species to dominate Aulacoseira granulata was indicated of its water is eutrophic. Keywords: Menjer Lake, bioindicators, phytoplankton

The use of maggot (Hermetia illlucens) oil in artificial feeds on the growth performance and survival rate of saline tilapia (Oreochromis niloticus) Seto Windarto; Hasbi Ash Shiddieqi; Slamet Budi Prayitno; Damang Suryanto; Sapto Purnomo Putro; Vivi Endar Herawati
Depik Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.29962

Tilapia is one of the commodities favored by the community and is widely cultivated in Indonesia. At this time, the development of tilapia cultivation has entered the location of marine and brackish waters, known as saline tilapia. The increase in tilapia cultivation has increased feed production, so the price of raw materials, especially fish oil, has increased. The source of crude fat that is usually used in feed formulations is fish oil, but the availability of fish oil is limited, so the price is increasing. One of the alternatives that can replace fish oil is maggot oil. Maggot contains 42-48% lipids. The purpose of this study is to find the effect of giving maggot oil on the growth and survival of saline tilapia. The method used was experimental, with a completely randomized design (CRD) consisting of 4 treatments and three replications. The treatments tested were treatment A (control), B (1.5 ml of maggot oil), C (2 ml of maggot oil), D (2.5 ml of maggot oil)) on 100 grams of feed. The saline tilapia used was 1.4-1.9 grams/head. The fish were reared for 30 days in 15-liter volume containers, ten fish density, and were fed three times a day. The results showed that fish oil substitution using maggot oil (H. illucens) significantly affected FUE, SGR, absolute weight, FCR, and SR of saline tilapia. The best dose of maggot oil was found in treatment B with a dose of 1.5 ml/100 grams of feed capable of producing FUE (88.78±3.80%), SGR (7.98±0.23%/day), absolute weight (41 .17± 4.57gram), FCR (1.13±0.05), and SR (100±0.00%).Keywords:BSFBrackish waterSGRProductionWeight

The use of maggot (Hermetia illlucens) oil in artificial feeds on the growth performance and survival rate of saline tilapia (Oreochromis niloticus) Seto Windarto; Hasbi Ash Shiddieqi; Slamet Budi Prayitno; Damang Suryanto; Sapto Purnomo Putro; Vivi Endar Herawati
Depik Vol 12, No 2 (2023): AUGUST 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.2.29962

Tilapia is one of the commodities favored by the community and is widely cultivated in Indonesia. At this time, the development of tilapia cultivation has entered the location of marine and brackish waters, known as saline tilapia. The increase in tilapia cultivation has increased feed production, so the price of raw materials, especially fish oil, has increased. The source of crude fat that is usually used in feed formulations is fish oil, but the availability of fish oil is limited, so the price is increasing. One of the alternatives that can replace fish oil is maggot oil. Maggot contains 42-48% lipids. The purpose of this study is to find the effect of giving maggot oil on the growth and survival of saline tilapia. The method used was experimental, with a completely randomized design (CRD) consisting of 4 treatments and three replications. The treatments tested were treatment A (control), B (1.5 ml of maggot oil), C (2 ml of maggot oil), D (2.5 ml of maggot oil)) on 100 grams of feed. The saline tilapia used was 1.4-1.9 grams/head. The fish were reared for 30 days in 15-liter volume containers, ten fish density, and were fed three times a day. The results showed that fish oil substitution using maggot oil (H. illucens) significantly affected FUE, SGR, absolute weight, FCR, and SR of saline tilapia. The best dose of maggot oil was found in treatment B with a dose of 1.5 ml/100 grams of feed capable of producing FUE (88.78±3.80%), SGR (7.98±0.23%/day), absolute weight (41 .17± 4.57gram), FCR (1.13±0.05), and SR (100±0.00%).Keywords:BSFBrackish waterSGRProductionWeight

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