Feeding Habits, Length-Weight Relation, and Growth Pattern of Snakehead Fish (Channa striata) from The Rice Field of Jejangkit Muara Village, Barito Kuala Regency, South Kalimantan Province, Indonesia
Abstract
The research about “feeding habits, length-weight relationship and growth pattern of snakehead fish which caught in rice field JejangkitMuara, South Kalimantan” had been done during June-August 2018which divides into two parts: rice field JejangkitMuara village, Barito Kuala regency, South Kalimantan province for sampling, and identification at Fish Nutrition Laboratory, Aquaculture Department, Faculty of Fisheries and Marine, LambungMangkurat University, Banjarbaru. The aims of the research were to analyze feeding habits, relation between length-weight and growth pattern of snakehead fish (Channastriata) which caught in rice field JejangkitMuara village, Barito Kuala regency, South Kalimantan province. The results of the research showed that the length-weight relation with formula W = 0.8191 L 0,7762with value of r = 0.321092 which mean that length-weight relationships indicated the pattern of negative allometric type of growth (b<3). Snakehead fish has the fish as their primary feeding habits.
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Introduction
The snakehead fish (Channastriata) known as “Gabus or Haruan” is a common freshwater fish species in South KalimantanIndonesia. This species is commonly found in rivers, flood plains, rice fields, irrigation canals, ponds, swamps, lakes, marshes, ditches, and estuaries (Sarowaret al, 2010; Fahmiet al, 2013; Akbar, 2017). It is ability to breathe atmospheric air and that can survive in harsh environments with high water temperature, low dissolved oxygen and high ammonia contents (Marimuthu&Haniffa, 2007). It can stay alive without water as long as its gills remain moist. Rice fields have traditionally been the largest source of snakehead fish production. It is one of commercial important, freshwater fish, usually sold fresh in the markets and highly priced because of its good and delicate taste (Qin & Fast, 1998). Its high demand and market price make the species a good aquaculture candidate to culture (Sarowaret al, 2010).
The fish is widely distributed include China, Pakistan, India, Nepal, Sri Lanka, Bangladesh, Myanmar, Vietnam, Laos, Thailand, Philippines, Cambodia, Malaysia, Singapore, and Indonesia. In Indonesia this species found in the Sumatera, Kalimantan, Jawa, Bali, Sulawesi, Madura, Flores, Maluku, Nusa Tenggara, and Papua (Akbar, 2017).
However in South Kalimantan Province-Indonesia, the culture of snakehead fish is still not common due to the lack of seed supply and knowledge of their feeding and breeding techniques. Niskolsky (1963), found that the primary problems posed in the study of the fish feeding habits, is to have a broad knowledge of the different species of prey in order to understand the qualitative and quantitative bridge between fish and their food organism. Based on Effendie (1979), one of the factors which are determines for fish growth and population is the food.
The fish feeding habits is one of fundamental in fish domestication before the fish is cultured (Akbar, 2017). For that reason, this research had been done to analyzing the relation between feeding habits of snakehead fish (Channastriata) and lengthweight body of snakehead fish in JejangkitMuara waters, South Kalimantan.
Conclusion
Based on the research result, it was concluded as follows feeding habits of snakehead fish caught in rice field JejangkitMuara village were fish (89,28%), macrophyta (2,6%), and materials which cannot be identified (8,12%). The fish was major food of snakehead fish. Growth pattern of snakehead fish is allometric growth, thin.