Cultivation of Caulerpa lentillifera using tray and sowing methods in brackishwater pond

2016 ◽  
Vol 4 ◽  
pp. 23-29 ◽  
Author(s):  
Maria Danesa S. Rabia
Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1011
Author(s):  
Andi Syahrullah Sulaimana ◽  
Chao-Kai Chang ◽  
Chih-Yao Hou ◽  
Bara Yudhistira ◽  
Fuangfah Punthi ◽  
...  

This study aims to determine the physicochemical quality of seagrape (Caulerpa lentillifera) as a freshness label for products cultivated in different seasons. The applied post-harvest storage experiments compared between, within and without seawater that led to oxidative stress conditions. Water content, malondialdehyde (MDA) compound, total phenolic content (TPC), and chlorophyll content were observed at 0, 3, 6, and 9 days of storage. The storage without seawater showed sharper quality reductions by reaching 20–40% of water loss, 70–90% of MDA production, 15–25% of TPC reduction, and 40–60% of total chlorophyll degradation. The storage within seawater showed lower quality reductions due to the specific growth rates still reaching 5–10%. This study found that the greater the physicochemical quality, the slower the decomposition rates of the stored seagrape during storage. Therefore, the seagrapes’ obvious discoloration occurred earlier in winter, followed by summer and spring. Kinetics of chlorophyll degradation on seagrape in different seasons meet different order-reactions during storage. Furthermore, alternating current electric field (ACEF) treatment with 125 kV/m of intensity for 60 min can lower the spring seagrapes’ physicochemical quality by reaching 10–30% of inhibition, resulting in the shelf-life extension for up to 12 days of post-harvest storage.


2006 ◽  
Vol 97 (18) ◽  
pp. 2321-2329 ◽  
Author(s):  
Prasert Pavasant ◽  
Ronbanchob Apiratikul ◽  
Vimonrat Sungkhum ◽  
Prateep Suthiparinyanont ◽  
Suraphong Wattanachira ◽  
...  

2010 ◽  
Vol 73 (8) ◽  
pp. 1529-1532 ◽  
Author(s):  
JUN KUDAKA ◽  
TORU HORII ◽  
KOJI TAMANAHA ◽  
KIYOMASA ITOKAZU ◽  
MASAJI NAKAMURA ◽  
...  

The enumeration and evaluation of the activity of marine bacteria are important in the food industry. However, detection of marine bacteria in seawater or seafood has not been easy. The Petrifilm aerobic count plate (ACP) is a ready-to-use alternative to the traditional enumeration media used for bacteria associated with food. The purpose of this study was to evaluate the usefulness of a simple detection and enumeration method utilizing the Petrifilm ACP for enumeration of aerobic marine bacteria from seawater and an edible seaweed, Caulerpa lentillifera. The efficiency of enumeration of total aerobic marine bacteria on Petrifilm ACP was compared with that using the spread plate method on marine agar with 80 seawater and 64 C. lentillifera samples. With sterile seawater as the diluent, a close correlation was observed between the method utilizing Petrifilm ACP and that utilizing the conventional marine agar (r = 0.98 for seawater and 0.91 for C. lentillifera). The Petrifilm ACP method was simpler and less time-consuming than the conventional method. These results indicate that Petrifilm ACP is a suitable alternative to conventional marine agar for enumeration of marine microorganisms in seawater and C. lentillifera samples.


2018 ◽  
Author(s):  
Amata Anantpinijwatna ◽  
Sitanan Nuntamongkol ◽  
Benjamaporn Tudkesorn ◽  
Orawan Sukchoy ◽  
Pawinee Deetae

2018 ◽  
Author(s):  
Sofa Fajriah ◽  
Ellya Sinurat ◽  
Megawati Megawati ◽  
Akhmad Darmawan ◽  
Lia Meilawati ◽  
...  

Biosfera ◽  
2015 ◽  
Vol 32 (2) ◽  
pp. 83 ◽  
Author(s):  
Utojo Utojo

This study aims to estimate the wealth and stability of traditional and intensive brackishwater pond waters through biological index calculation (diversity, uniformity and dominance of plankton) in traditional and intensive brackishwater pond waters of Probolinggo Regency, East Java Province. Sampling plankton and water from the site, considered to represent the diversity of plankton and water stability of traditional and intensive brackishwater pond. Plankton was collected using a plankton net no. 25, then preserved using 1% lugol solution. Measurement of water quality variables include temperature, salinity, dissolved oxygen and pH, whereas the laboratory analyzes that Total Organic Matter (TOM), NO2, NO3, NH3, PO4, Total Suspended Solids (TSS), and Fe. Plankton identification using microscope and calculation with cell counting method. The results of analysis of plankton in intensive brackishwater pond waters are obtained as much as 23 genera consisting of 16 genera of phytoplankton were included into three classes, namely Bacillariophyceae as much as 5 genera, Cyanophyceae 3 genera, Dinophyceae and Chlorophyceae, each of the four genera, whereas zooplankton consisting of 7 genera are included into two classes, namely Crustaceae 6 genera and Rotatoria 1 genus. In traditional brackishwater pond earned as much as 13 genera consisting of 8 genera of phytoplankton were included into Bacillariophyceae 5 genera, Cyanophyceae 2 genera, and Dinophyceae 3 genera, whereas zooplankton consisting of three genera are included into class Crustaceae 2 genera and Rotatoria 1 genus. Plankton abundance in intensive brackishwater pond ranges 702 - 4269 ind./L, diversity index of 0.26 -2.38, uniformity index of 0.10 - 1.5, and dominance index of 0.02 - 0.68. In traditional brackishwater pond have an abundance of plankton range 134 - 776 ind./L, diversity index of 0.10 - 1.97, uniformity index of 0.08 - 1.0, and dominance index of 0.01 - 0.75. Traditional and intensive brackishwater pond waters condition still within the limits that can be tolerated by the culture organism. Based on the index value of biological, diversity of genus in the intensive brackishwater pond is relatively higher than traditional brackishwater pond and the community stability moderate, whereas traditional brackishwater pond unstable. On average, the uniformity of the genus in both  brackishwater ponds are relatively evenly and genus of plankton to dominate the others genus.


2011 ◽  
Vol 6 (1) ◽  
pp. 91
Author(s):  
Andi Indrajaya Asaad ◽  
Akhmad Mustafa

Spatial distribution of brackishwater pond soil has a vital role in the system of bioenvironment including brackishwater pond environment. This research was aimed to determine the spatial distribution of brackishwater pond soil characteristics in Pekalongan City, Central Java Province. A total of 59 sampling points each with two different soil depth samplings were determined by simple random method. A total of 21 soil characteristics were measured in the field and analyzed further in the laboratory. Geostatistic with Kriging Interpolation method in the ArcGIS 9.3 software were used to depict the distribution of the data across the landscape. Furthermore, the spatial distribution was presented by using ALOS AVNIR-2 image. Research result indicates that in general, pond soil in Pekalongan City can be classified as soil with high variability or relatively heterogenic with the value of variation coefficient more than 36%. Soil characteristics which have similar pattern of spatial distribution are acid sulfate soil and soil nutrient content. High value of pH, organic matter, and total-N of soil, and on the other hand, low value of PO4 were generally found in the pond area of Krapyak Lor Village, while in Pekalongan City, it was found high clayish soil content but relatively homogenous. It is recommended that pond management must be based on soil characteristics which are different from one area to another. The soil characteristics itself can be drawn and assessed through spatial distribution.


Author(s):  
Eko Joko Lelono ◽  
Indah Susilowati

This research on production efficiency and availability of brackishwater pond pro- duction in Parigi Moutong whether in a state of food insecurity or not. This study used a stochastic frontier production function analysis and cost benefit ratio. As a result, production of aquaculture ponds in the study sites were technically not effective, but feasible to proceed. Cultivation was not efficient because of the positive and significant influence of production inputs of land, seed, and labor. Production inputs such as fertilizer, feed, experience, lime, technology, fisheries counsellor were not significant The availability of pond products produced by processes that have not been efficient and food insecurity due to consumption of fish per capita per year is greater than the amount of production. Strengthening the performance of the pond to achieve food security needs to intensification and diversification. Intensification of land from two crops to be harvested three times a year.


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