DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
Not a member yet
571 research outputs found
Sort by
Komposisi ikan karang di lokasi transplantasi karang di Pulau Rubiah, Kota Sabang, Aceh
Get PDFAbstract-. Coral transplantation is one of the techniques to rehabilitate the damaged coral reefs. The objective of this study is to observe the composition of reef fishes in the coral transplantation location in Rubiah Island, Sabang. The study was conducted in February 2011. Some of reef fishes Family were found in coral transplantation location (16 Family at 3 meters and 14 Family at 10 meters). The Family of Acanthuridae, Chaetodontidae, Pomacentridae Scaridae and Labridae were found in 3 meters. Reef fish families that dominated at depths of 10 meters were the Family of Acanthuridae, Pomacentridae Scaridae and Chaetodontidae. There are 40 reef fish species found in this study (34 species in 3 m and 38 species in 10m). Some reef fishes that were found in the transplantation area suggested that coral reefs rehabilitated using the technique of transplantation can improve its function as habitat for reef fish.Keywords: Transplantation, coral reefs, Rubiah Islan
Analisis subsidi bahan bakar minyak (BBM) solar bagi nelayan di Kabupaten Aceh Besar, Provinsi Aceh
Get PDFAbstract. Fuel is one of important components in fishing activity. The objectives of this research were to analyze the need and the receiver of fuel subsidy in Aceh Besar t as well as to analyze the problems that faced by fisherman in Aceh Besar district. The survey was done on June-August 2012 in five sub-district in Aceh Besar namely: (1) Baitussalam, (2) Mesjid Raya, (3) Leupung (4) Lhoknga dan (5) Mesjid Raya. The result shown that the average cost of one trip of fishing activities in Aceh Besar were Rp700.000. The lowest operational cost was found in Seulimum (Rp96.200 per trip) and the highest was found in Baitussalam sub-district (Rp1, 793,710 per trip). Fuel was the biggest cost for fishing activity; it was ranged 40%-73% with average 57.9%. The lowest proportion of fuel consumption was found in Baitussalam sub-district and the highest was found in Lhoknga sub-district. In average, the fishermans fuel consumption was 1,237L. per month; with total subsidy was Rp 5,824,737 per fisherman per month. The profit will be decreased up to 89.5% if there was no fuel subsidy. In addition, the result also shown that the fisherman in Aceh Besar did not have any skill to generate their alternative income. As the consequence, in the future there is a need to develop programs to generate the alternative livelihood for Aceh Besar fisherman as well as their family.Keywords. Capture fishery, conservation, budget allocation, and climate change
Identifikasi lokasi untuk pengembangan budidaya keramba jaring apung (KJA) berdasarkan faktor lingkungan dan kualitas air di perairan pantai timur Bangka Tengah
Get PDFAbstract. Waters of the east coast of Bangka Regency has higher potency for development of mariculture livelihood. The Geographic Information Systems (GIS) can be used to determine the suitable location for these activities. Spatial analysis on every measured parameters were conducted and then its overlay to determine the feasibility of locations. The suitability location was categorized into four levels i.e very suitable, moderately suitable, suitable with conditions, and not suitable. The results showed that there are at least 127,746 ha of areas have potency for mariculture location, of these 122,950 ha (96.25%) are very suitable and suitable, while 4796 ha (3.75%) are moderately suitable for fish farming. However, based on field verification, about 8.627 ha of areas are recommended for fish mariculture developement, this is situated at Pulau Ketawai Island, Pulau Panjang dan Pulau Bujur.Key Words : Geographic Information Systems, overlay, fish, mariculture, and cag
Analisis dampak ENSO terhadap debit aliran DAS Cisangkuy Jawa Barat menggunakan model Rainfall-Runoff
Get PDFAbstract. A study of analysis of ENSO impact on streamflow of Cisangkuy watershed West Java using Rainfall-Runoff model was done. The study was analyzed by using GR4J model. Daily rainfall and potential evaporation are model initial data. The model was tested for 2 years running by applying least square error method provided by spreadsheet application to reduce the initial value problem. The model showed a good result with Nash-Sutcliffe Efficiency of 70.0. The model was then simulated for 5 years. Monthly streamflow which is model output was then analyzed. The ENSO impact was done by identifying SOI to the variability of rainfall and streamflow. The model result showed that during La-Nia year in 2000, streamflow decreased below normal. The situation remain question that need to be further investigated. During normal year from 2001 to 2004, streamflow was normal. However, during El-Nio year, the decreasing rainfall also have an effect on the decreasing of streamflow in Cisangkuy watershed. The result also showed that the correlation between climate anomaly Nino 3.4 and variability of rainfall and streamflow is significant with correlation coefficient of -0.69 and -0.30, respectively. The regression model was governed and was then utilized to predict the risk analysis in Cisangkuy watershed by using stochastic spreadsheet under Crystal Ball application
Komunitas ikan karang herbivora di perairan Aceh bagian utara
Get PDFAbstract. Herbivory reef fish is the most important of fish tropic group in the coral reef ecosystem.Hence, the objective of this study was to provide reliable data and information on herbivory reef fish based on management types in the northern Acehnese reef. Underwater Visual Census Techniques was used to collect the data at 20 sites around Weh Island and Aceh Besar. This study found 32 herbivory reef fishes species from five families in northern Acehnese reef. Densities of herbivory reef fish were varied from 27 to 104 ind./transect,while species numbers were also varied from 6 to 14 species/site. Family Acanthuriidae was the highest in species number, i.e. 19 species. Densities of herbivory reef fish in sites that were protected under the management authority of Sabang Weh Island were not significantly higher compare with sites from open access areas. Keywords: herbivory reef fish, coral reef, visual census technique, Ace
Title: a title should be provided concisely (10-12 words) (Garamond font style, 16 pt, Sentence case, justify)
No full textMaximum of 200 words, the abstract should consist at least; short background (voluntary), Purpose (mandatory), Design/methodology/approach (mandatory), Main findings (mandatory), Practical implications (if applicable), and Conclusions. Abstract should be constructed in a single paragraph and exclusive of any literature review. Please provide minimum five and up to seven keywords which encapsulate the principal topics of the paper.Keywords:AaaaaBbbbbCccccDddd
Kondisi ekosistim mangrove di sub district Liquisa Timor-Leste
Get PDFAbstract. The objective of the present study was to determine the condition of the mangrove ecosystem and how to the influence of physic-chemical environment parameters on community structure of mangrove vegetation in Kaitehu Tibar and Ulmera in Bazartete coastal areas District of Liquisa, Timor-Leste. The parameters observed include the condition of mangrove vegetation, soil substrates, plankton abundance and Nutrient Elements in the area. The results showed that, the Sonneratia alba species is the most dominating in Bazartete area, compared with Rhizophora and Brugueira cylindric species, ie 967 threes /ha, 967 threes /ha, and 1333 threes /ha, The results of laboratory analysis quality of physical-chemical conditions of the environment shows that, there are significant differences in soil nutrient substrate in the 3 observation areas. such as follows: Substrate ground, the average content of C-organic were 0.67%, 2.47% and 0.21%, K = 1.17 Me/100g, 1.20 Me/100g , and 1.14 Me/100g; Ca = 32.39 Me/100g, Me/100g 25.83, and 27.09 Me/100g; Me/100g Mg = 11.46, 9.81 and 9.78 Me Me/100g / 100g; Me/100 g Na = 8.47, 8.26 and 9.78 Me/100g Me/100g. The cation concentration at each observation areas is : K = 0.023 mg / l, 0.023 mg / l and 0.046. Ca = 0.05 mg / l, 0.04 mg / l and 0.04 mg / l. Mg= 0.02 mg / l, 0.03 mg / l, 0.026 mg / l, and Na = 0.03 mg / l, 0.03 mg/l and 0.02 mg/l.Keywords. Mangrove ecosystems, mangrove environment habitats, organic matter, Calsium and Magnesiu
Selektivitas fraksi Rf < 0,5 ekstrak etil asetat (EtOAc) biji putat air (Barringtonia racemosa)terhadap keong mas (Pomacea canaliculata) dan ikan lele lokal (Clarias batrachus)
Get PDFAbstract. Research to determine the selectivity of fraction Rf 0.5 of ethyl acetate extract (EtOAc) of putat air kernel (Barringtonia racemosa) on golden apple snail(Pomacea canaliculata) and local catfish (Clarias batrachus) was conducted in February 2012 at the Laboratory of Chemistry of Teacher Training and Education Faculty and Laboratory of Marine Chemistry of Coordinatorate of Marine and Fisheries of Syiah Kuala University. Thin-layer chromatography was used to separate components in the extract samples, and testing of biological activity based on the procedures recommended by FAO. Golden apple snail and local catfish mortality data were analyzed using Probit program, and value of selectivity (S) was processed according to the Wang and Fengs formula.The values of LC50 of the fraction Rf 0.5 were 29.26 ppm for P. canaliculata and 44.47 ppm for C. batracus. The selectivity value for the tested organisms was 1.51. This study revealed that the tested extract has bioactive property as molluscicide of P. canaliculata.Key words. Biological activity, thin-layer chromatography, mortality, bioactive property, molluscicide, LC50
Suplementasi -glucan dari ragi roti (Saccharomyces cerevisiae) dalam pakan terhadap aktivitas fagositosis, aktivitas NBT, total protein plasma dan aktivitas aglutinasi darah ikan nila (Orechromis niloticus)
Get PDFAbstract. Tilapia is an important fisheries comodity which intesively farmed in Indonesia. However, an intensive farming system of aquatic organism often lead to disease outbreak. Ones the disease emerged, it will be difficult to combat. The curing method by using antibiotics in aquatic organism will bring negative impacts, such as causing bacteria resistance and decline of aquatic environments. Therefore control of disease in aquatic organism should be done through preventive methods such as the use of -glucan from bakers yeast (Saccharomyces cerevisiae). It is widely known that yeast cell wall contain of immunostimulant substance namely -glucan. This research was aimed to find the effect of different dose of -glucan in diet toward the phagocytic activity, respiratory burst which is indicated by Nitroblue Tetrazolium (NBT) activity, total of protein plasm and agglutination activity of tilapia blood. Method used in this study was experiment by complete random design using five treatments triplicate. Those treatments were -glucan 0; 2,5; 5; 7,5 and 10 ppmkg-1 diet. Result showed that the different dose of -glucan in diet gave a significantly effect on the phagocytic activity and total of protein plasm, but not on respiratory burst (NBT activity). The highest phagocytic activity occured in treatment E (-glucan 10 ppmkg-1 diet) with the value of phagocytic activity was 37,67%, whereas the highest of total of protein plasm was occured in treatment B (-glucan 2,5 ppmkg-1 diet) with the value of 123,58 mgml-1. Keywords : Bakers yeast, -glucan, phagocytic and agglutination activity, NBT activity, total of protein plas
Keragaman makrozoobenthos di perairan Kuala Gigieng Kabupaten Aceh Besar
Get PDFAbstract. The objective of present study was to study the diversity of macrozoobenthos in Kuala Gigieng estuary, Aceh Besar. The study was conducted in June 2011. The random sampling method was used to determine the area and sampling points based on tidal activities. Samples were taken with the Eckmann grab, then identified at Marine Biological Laboratory of Marine Science Department. The results showed that there were three class of macrozoobenhos (Malacostraca, Gastropoda, and bivalves) within 12 species of makrozoobenthos occured in Kuala Gigieng. The Shannon-Wienner diversity index (H') at high tide, mean sea level, and low tide were 1.26, 1.446, and 1.892, respectively, and it was categorized as low level. Keywords. Diversity, Makcrozoobenthos, Gigieng estuar