Study on water quality around mangrove ecosystem for coastal rehabilitation

Mangrove forest is tropical coastal vegetation that grow on muddy and sandy soils which affected by sea tides. One of important commercial species that live in mangrove ecosystem is the mud crab (Scylla serrata). Feed and water quality have been considered as critical components for supporting the growth both of weight and carapace length of this species. This study was conducted from January to February 2017 in the area of ??Ecotourism Kampung Kepiting, Bali. The influence of different natural feed such as Jerbung shrimp (Penaeus merguiensis), Mollusca, lemuru fish (Sardinella lemuru) and sea worms (Nereis sp.) on the growth performance of the mud crab were investigated. Water quality parameter data such as pH, DO, temperature, salinity and ammonium were also collected. The obtained data were analyzed by using variance analysis of Statistical Product and Service Solutions (SPSS) version 21. The result showed that the use of different types of feed have no effect on the length of carapace, but it has significantly influence on the specific growth rate of mud crab. Finally, different types of the given feeding were still resulted in the save range of water quality parameters for mud crab culture.

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Evaluation of Water Quality for Mangrove Ecosystem Using Artificial Neural Networks

2018 International Conference on Advanced Mechatronic Systems (ICAMechS) ◽

10.1109/icamechs.2018.8507061 ◽

2018 ◽

Author(s):

Ru Zhang ◽

Shan Liang ◽

Minghui Ou ◽

Qingyu Xiong

Keyword(s):

Neural Networks ◽

Water Quality ◽

Artificial Neural Networks ◽

Mangrove Ecosystem ◽

Artificial Neural

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Profil Hemosit dan Aktifitas Fagositosis Kepiting Bakau (Scylla sp.) yang Terserang Ektoparasit di Ekosistem Mangrove Kuta Selatan, Bali

Journal of Marine and Aquatic Sciences ◽

10.24843/jmas.2016.v2.i01.34-39 ◽

2016 ◽

Vol 2 (1) ◽

pp. 34

Author(s):

Alfi Hermawati Waskita Sari ◽

Rani Ekawaty

Keyword(s):

Water Quality ◽

Phagocytic Activity ◽

Parasitic Infection ◽

Mangrove Ecosystem ◽

Total Count ◽

Differential Count ◽

Mud Crab ◽

Mangrove Crab

Mangrove crab (Scylla sp.) is one of the commodities that live in the mangrove ecosystem and were developed through cultivation, but it encountered many obstacles in its development mainly due to parasitic infection. The purpose of this study is to determine the hemocytes profile and the phagocytic activity of the mud crab (Scylla sp.), in terms of parasitic infection and the water quality of the mangrove ecosystem in South Kuta, Bali. The results of study showed the Haemocyte Total Count (THC) of mangrove crab in the range of 1.8 to 2.57x106 cells/ml and Haemocyte Differential Count (DHC) mud crab shows the percentage of cells hyalinosit 14-32%, 24-38% and the semigranulocytes cells 39-58% of granulocytes cells, phagocytosis percentage of the mud crab (Scylla sp.) are in the range of 53%-66%, while the index of phagocytosis 1.81-2.11. Type ectoparasites found in mangrove crab (Scylla sp.), among others are Vorticella sp., Zoothamnium sp. and Epistylis sp.

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