Research Center for Fisheries Management and Conservation

Ancol, Indonesia

Research Center for Fisheries Management and Conservation

Ancol, Indonesia
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Munifah I.,Bogor Agricultural University | Sunarti T.C.,Bogor Agricultural University | Irianto H.E.,Research Center for Fisheries Management and Conservation | Meryandini A.,Bogor Agricultural University
Biosciences Biotechnology Research Asia | Year: 2015

Indonesia is known as second seaweed producer in the world after China. Gracilaria sp seaweed is important commodity in industry, as raw material to produce agar and it derivate products. Solid wastes of agar seaweed processing industry contain considerable amounts of cellulose. It can effectively be utilized either as a major source of energy feedstock or as a r aw material for production of high value product. Here, hundreds of cellulolytic bacteria were screened and isolated from solid wastes of agar seaweed processing industry. Among the isolates, LA4P strains showing higher potential for practical uses were purified on solid wastes of agar seaweed processing Industry; (SWA) agar plates and identified as Bacillus pumilus strains by morphological, physiological, and biochemical characterization and 16S rRNA gene analysis. The production patterns of cellulose degrading enzymes were investigated during cell culture. The isolated strains produced CMCase, Avicelase, glucosidase, and cellobiase enzymes, which suggested synergic cellulolytic systems in Bacillus pumilus LA4P.


Dwiyitno,RWTH Aachen | Dwiyitno,Bogor Agricultural University | Dsikowitzky L.,RWTH Aachen | Nordhaus I.,Leibniz Center for Tropical Marine Ecology | And 7 more authors.
Marine Pollution Bulletin | Year: 2016

Non-target screening analyses were conducted in order to identify a wide range of organic contaminants in sediment and animal tissue samples from Jakarta Bay. High concentrations of di-iso-propylnaphthalenes (DIPNs), linear alkylbenzenes (LABs) and polycyclic aromatic hydrocarbons (PAHs) were detected in all samples, whereas phenylmethoxynaphthalene (PMN), DDT and DDT metabolites (DDX) were detected at lower concentrations. In order to evaluate the uptake and accumulation by economic important mussel (Perna viridis) and fish species, contaminant patterns of DIPNs, LABs and PAHs in different compartments were compared. Different patterns of these contaminant groups were found in sediment and animal tissue samples, suggesting compound-specific accumulation and metabolism processes. Significantly higher concentrations of these three contaminant groups in mussel tissue as compared to fish tissue from Jakarta Bay were found. Because P. viridis is an important aquaculture species in Asia, this result is relevant for food safety. © 2016 Elsevier Ltd


Dsikowitzky L.,RWTH Aachen | Strater M.,RWTH Aachen | Dwiyitno R.,RWTH Aachen | Ariyani F.,Research and Development Center for Marine and Fisheries Product Processing and Biotechnology 4 | And 2 more authors.
Marine Pollution Bulletin | Year: 2016

Jakarta is an Indonesian coastal megacity with over 10 million inhabitants. The rivers flowing through the city receive enormous amounts of untreated wastewaters and discharge their pollutant loads into Jakarta Bay. We utilized a screening approach to identify those site-specific compounds that represent the major contamination of the cities' water resources, and detected a total number of 71 organic contaminants in Jakarta river water samples. Especially contaminants originating from municipal wastewater discharges were detected in high concentrations, including flame retardants, personal care products and pharmaceutical drugs.A flame retardant, a synthetic fragrance and caffeine were used as marker compounds to trace the riverine transport of municipal wastewaters into Jakarta Bay. These markers are also appropriate to trace municipal wastewater discharges to other tropical coastal ecosystems. This application is in particular useful to evaluate wastewater inputs from land-based sources to habitats which are sensitive to changing water quality, like coral reefs. © 2016 Elsevier Ltd.


Sindern S.,RWTH Aachen | Tremohlen M.,RWTH Aachen | Dsikowitzky L.,RWTH Aachen | Gronen L.,RWTH Aachen | And 4 more authors.
Marine Pollution Bulletin | Year: 2016

Sediment geochemistry of the Jakarta region, a densely populated tropical coast, is studied — with particular focus on rivers discharging to Jakarta Bay. Weathering volcanics in the river catchment area control the composition of major elements, As, Cr and in part Cu. In contrast, Zn, Ni, Pb and partly Cu are affected by anthropogenic sources, mainly in central Jakarta City. The data reflect a high variability of local emission sources, among which metal processing industries, fertilizers or untreated animal waste may be important. In particular, the role of street dusts is emphasized. Locally, heavy metals reach levels considered to have adverse biological effects. River discharge leads to anthropogenic enrichment of heavy metals in the coastal sediments. Element data also show geogenic effects on the composition of the coastal sediments, such as mixing of detrital silicates with biogenic carbonates as well as suspended particulate matter from the ocean. © 2016 Elsevier Ltd


Satria F.,Research Center for Fisheries Management and Conservation
African Journal of Marine Science | Year: 2015

Indonesian waters have a high diversity of sharks and rays, with at least 118 species belonging to 25 families found throughout the vast archipelago. Indonesia also has the highest shark landings globally and nearly all high‑value shark species are overexploited and could be considered threatened. This situation is of international concern, especially among conservationists and elasmobranch scientists. Most of the shark catch in Indonesian waters is taken as bycatch of fisheries deploying various types of gear, including longlines, driftnets, handlines and purse‑seines. However, sharks are also targeted in several regions of eastern and southern Indonesia, where they are often the main source of livelihood for many artisanal fishers. Shark fishing, whether targeted or bycatch, occurs throughout most of Indonesia's waters, and the large size of the EEZ, which encompasses nearly 6 million km2, is a primary constraint regarding the effective management of shark fisheries. In 2009, 11 fisheries management zones were established through the gazetting of a regulation on regional fisheries, facilitating management by the Ministry of Marine Affairs and Fisheries. Here, we discuss how the implementation of a number of regulations gazetted by the Indonesian government to ensure sustainable utilisation of fisheries resources should take into account shark resources. We also examine recent elasmobranch conservation efforts by the government, including the recent designation of whale sharks Rhincodon typus and manta rays Manta alfredi and M. birostris as fully protected species, and a prohibition on exports of products of hammerhead Sphyrna spp. and oceanic whitetip sharks Carcharhinus longimanus. © 2015 NISC (Pty) Ltd.


Fahmi,Indonesian Institute of Sciences | Dharmadi,Research Center for Fisheries Management and Conservation
African Journal of Marine Science | Year: 2015

Sharks are commonly caught in Indonesian waters both by target fisheries and as bycatch. Fishers targeting sharks mostly employ drift longlines, whereas tuna longlines and gillnets are the gear mostly responsible for shark bycatch. Our studies on shark fisheries have been conducted since 2006 and have focused on the eastern Indian Ocean region, the most exploited area in Indonesian waters. Sharks are mostly landed as bycatch in the tuna fishery (using longlines and gillnets) in Cilacap, Central Java province, and as targeted catch by the pelagic shark fishery at Tanjung Luar (Lombok, West Nusa Tenggara province), one of the largest targeted shark fisheries in Indonesia. Eight years (2006–2013) of monthly shark bycatch data from the fishing port at Cilacap and one year (February 2012–January 2013) of daily catch data from Tanjung Luar were analysed to determine their respective contributions to shark landings in Indonesia's Eastern Indian Ocean Fisheries Management Region. A total catch of 1 364 t of sharks was recorded at Cilacap, with an average monthly catch of 14.2 t (SD 18.5). A total of 1 426 sharks were recorded at Tanjung Luar, with an average daily catch of five individuals. Whaler sharks (Carcharhinidae) were the most commonly caught in both fisheries, consisting primarily of silky sharks Carcharhinus falciformis in the targeted fishery and blue sharks Prionace glauca in the tuna fishery. Overall, the Cilacap bycatch contributed 4.7% of the annual shark landings in the region. In 2012, the fishery at Tanjung Luar contributed 5.2% of the regional shark landings. The relatively low recorded contributions of these two fisheries may be inaccurate and may reflect double‑counting at the provincial level. Given the different shark species composition, the two fisheries require different management and conservation strategies to be included in Indonesia's National Plan of Action for the Conservation and Management of Sharks (NPOA‑Sharks). © 2015 NISC (Pty) Ltd.


Prescott J.,Australian Fisheries Management Authority | Zhou S.,CSIRO | Prasetyo A.P.,Research Center for Fisheries Management and Conservation
Marine and Freshwater Research | Year: 2015

Tropical sea cucumbers are commonly exploited by small-scale, poorly managed fisheries. A fundamental problem in managing sea cucumber fisheries is the lack of basic knowledge of important life history characteristics for most species. As a result of plastic body dimensions, biological research on this group of animals becomes exceptionally challenging. To improve our understanding of essential biological parameters, we conducted a study to investigate correlations among various body measurements. We analysed a total of 18 sea cucumber species and more than 6600 individuals collected at Scott Reef in the Timor Sea, north-west Australia. We used hierarchical Bayesian errors-in-variables models to specifically take into account measurement errors that are obviously unavoidable. The measures included three types of weights (wet weight, gutted weight and dry weight) and two body dimensions (length and width). The modelling reveals that using both body length and width as independent variables, wet weight increases approximately linearly with body length, but is a power function (∼1.6) of body width, although variability exists among species. Dry weight tends to increase more slowly with body length, but has a similar power function of body width. Linear relationships are established between the three types of weights. On average, ∼11% of a live specimen and ∼16% of a gutted specimen is processed to the commercially traded dry body wall. Our results can be applied to sea cucumbers in other areas and can be useful for data standardisation and size-based fisheries management. © CSIRO 2015.


PubMed | Research Center and Development for Marine and Fisheries Product Processing and Biotechnology 4, Research Center for Fisheries Management and Conservation and RWTH Aachen
Type: Journal Article | Journal: Marine pollution bulletin | Year: 2016

Sediment geochemistry of the Jakarta region, a densely populated tropical coast, is studied - with particular focus on rivers discharging to Jakarta Bay. Weathering volcanics in the river catchment area control the composition of major elements, As, Cr and in part Cu. In contrast, Zn, Ni, Pb and partly Cu are affected by anthropogenic sources, mainly in central Jakarta City. The data reflect a high variability of local emission sources, among which metal processing industries, fertilizers or untreated animal waste may be important. In particular, the role of street dusts is emphasized. Locally, heavy metals reach levels considered to have adverse biological effects. River discharge leads to anthropogenic enrichment of heavy metals in the coastal sediments. Element data also show geogenic effects on the composition of the coastal sediments, such as mixing of detrital silicates with biogenic carbonates as well as suspended particulate matter from the ocean.


PubMed | Research Center for Fisheries Management and Conservation, Research and Development Center for Marine and Fisheries Product Processing and Biotechnology 4 and RWTH Aachen
Type: Journal Article | Journal: Marine pollution bulletin | Year: 2016

Jakarta is an Indonesian coastal megacity with over 10 million inhabitants. The rivers flowing through the city receive enormous amounts of untreated wastewaters and discharge their pollutant loads into Jakarta Bay. We utilized a screening approach to identify those site-specific compounds that represent the major contamination of the cities water resources, and detected a total number of 71 organic contaminants in Jakarta river water samples. Especially contaminants originating from municipal wastewater discharges were detected in high concentrations, including flame retardants, personal care products and pharmaceutical drugs. A flame retardant, a synthetic fragrance and caffeine were used as marker compounds to trace the riverine transport of municipal wastewaters into Jakarta Bay. These markers are also appropriate to trace municipal wastewater discharges to other tropical coastal ecosystems. This application is in particular useful to evaluate wastewater inputs from land-based sources to habitats which are sensitive to changing water quality, like coral reefs.


PubMed | Leibniz Center for Tropical Marine Ecology, University of Rostock, RWTH Aachen, Bogor Agricultural University and 2 more.
Type: Journal Article | Journal: Marine pollution bulletin | Year: 2016

Non-target screening analyses were conducted in order to identify a wide range of organic contaminants in sediment and animal tissue samples from Jakarta Bay. High concentrations of di-iso-propylnaphthalenes (DIPNs), linear alkylbenzenes (LABs) and polycyclic aromatic hydrocarbons (PAHs) were detected in all samples, whereas phenylmethoxynaphthalene (PMN), DDT and DDT metabolites (DDX) were detected at lower concentrations. In order to evaluate the uptake and accumulation by economic important mussel (Perna viridis) and fish species, contaminant patterns of DIPNs, LABs and PAHs in different compartments were compared. Different patterns of these contaminant groups were found in sediment and animal tissue samples, suggesting compound-specific accumulation and metabolism processes. Significantly higher concentrations of these three contaminant groups in mussel tissue as compared to fish tissue from Jakarta Bay were found. Because P. viridis is an important aquaculture species in Asia, this result is relevant for food safety.

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