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Niche Architecture of Thalassina anomala in the Mangrove Ecosystem of Tanjung Tiram Village South Konawe Regency - Southeast Sulawesi
Get PDFPenelitian ini diharapkan mampu memberikan informasi ekologis Thalassina anomala terutama yang berkaitan dengan arsitektur relung T. anomala dan peranannya terhadap kehidupan (interaksi timbal balik) biota akuatik lainnya yang ada di ekosistem mangrove Desa Tanjung Tiram Kecamatan Moramo Utara Kabupaten Konawe Selatan - Sulawesi Tenggara. Penelitian ini dilaksanakan pada bulan Oktober-Desember 2019 bertempat di Desa Tanjung Tiram Kecamatan Moramo Utara Kabupaten Konawe Selatan. Penelitian ini bertujuan untuk mengetahui secara detail arsitektur gundukan T. anomala di ekosistem mangrove Desa Tanjung Tiram Kabupaten Konawe Selatan. Penentuan stasiun penelitian menggunakan metode purposive sampling atau penetapan stasiun berdasarkan habitat alami lobster lumpur (T. anomala) di alam yakni pada ekosistem mangrove. Pengamatan relung T. anomala dilakukan secara langsung menggunakan metode random sampling. Parameter utama yang diamati pada penelitian adalah arsitektur relung (niche) antara lain tinggi gundukan, diameter atas gundukan, diameter bawah gundukan, kedalaman liang, diameter liang, kemiringan gundukan, kemiringan liang dan arah liang. Hasil pengukuran arsitektur relung lobster lumpur dan parameter lingkungan di analisis nonparametrik menggunakan uji spearmen, demikian juga dengan hubungan antara diameter atas gundukan dan lebar karapas lobster lumpur (T. anomala). Pola distribusi T. anomala pada setiap stasiun memperlihatkan pola yang acak (random). Kepadatan lobster lumpur (mud lobster) tertinggi diperoleh pada stasiun 2 (substrat berlumpur) dengan jumlah 4,5 ind/m2 sedangkan kepadatan terendah (1,5 ind/m2) diperoleh pada stasiun 3 dengan substrat kombinasi (lumpur, pasir dan kerikil). Terdapat korelasi yang sangat signifikan atau signifikan positif antara diameter liang dan lebar karapas (carapace width) dari T. anomala. 95% dari parameter arsitektur gundukan tersebut memiliki korelasi yang signifikan, artinya hanya terdapat satu parameter yang tidak memiliki korelasi signifikan yakni hubungan antara parameter kemiringan gundukan dengan kemiringan liang (P>0,05). Diantara parameter tersebut tinggi gundukan dengan diameter bawah gundukan memiliki korelasi yang sangat signifikan (0,005<0,01) dan tinggi gundukan dengan kedalaman liang (0,026<0,05).Kata Kunci : Mounds Architecture; Density; Distribution Pattern; Thalassina anomala
Effect Utilization Mangrove Rhizophora Sp Fruit Extract in Production of Coffee Powder in Perspective of Water Content and Organoleptic Test
Get PDFUtilization of mangrove seeds is not as popular the use of wood tree. Utilization of wood from mangrove tree is used as raw material for making charcoal and building materials.The local community rarely uses mangrove seeds for food, drinks, scrubs and coloring. This is not enough of public knowledge about the benefits of mangrove seeds. The public mindset that the only sources of carbohydrates are rice and corn. There is not much knowledge about the potential and benefits of mangrove seeds as a coffee drink. The research method used in this research is experimental research. In this experiment, 3 repetitions of treatment and 3 replications. Water content data in the mangrove seed ground coffee was tested by normality test. The proximate test results show ash content of 1 to 4% when averaged is 2.6%. While the general requirement for roasted coffee (SNI.01.2983-1992) is 7-14% ash content. The color of coffee is influenced by the value of the extract content of the coffee, water soluble coffee juice will give it a deep black color ( Pastiniasih, 2012). The juice content of magrove coffee is high enough for each treatment so that the steeping gives a visually visible black color
ECOTOURISM DEVELOPMENT OF SNORKELING AND DIVING ACTIVITY TOWARD CORAL REEF HABITATS IN THE LEMUKUTAN ISLAND OF BENGKAYANG REGENCY
Get PDFLemukutan Island has the potential of coral reefs to be developed into snorkeling and diving destinations. This study aims to (1) Analyze the suitability and carrying capacity of Lemukutan Island Conservation area in the development of snorkeling and diving ecotourism; (2) Formulate a strategy for developing Snorkeling and diving ecotourism in Lemukutan Island. Primary data collection with field observations and structured interviews to 30 respondents on Lemukutan Island. Secondary data is collected by various libraries and related. Based on results of the study, Lemukutan Island's coral reef ecosystem for the purpose of snorkeling and diving tourism was in the appropriate category (S2) with an IKW value of 76.8% and 68.86%. While the Ecological Carrying Capacity of each ± 6,139 people / day and ± 1,008 people / day. Based on the results of the SWOT analysis obtained alternatif strategies (1) Management and utilization of coral reefs optimally by taking into account the sustainability; (2) Increased access to Lemukutan islands, such as speed boats and timely departures; (3) Adding snorkeling and diving equipment, and improving resort services; (4) Arrangement of land and sea space in accordance with its designation so that marine resources can be sustainable; (5) Packaging of unique and environmentally based snorkeling and diving tours; (6) Increasing promotion through digital technology and promotion through tourism events to build partnership networks; (7) Improving skills for the community to open up alternative opportunities for new jobs; (8) Disseminating the importance of protecting coral reefs and making rules for snorkeling and diving tour
WATER QUALITY OF FISHING LOCATION OF SEPATUNG FISH (Pristolepis grootii) AT KELEKAR RIVER, OGAN ILIR REGENCY OF SOUTH SUMATERA
No full textThis study aims to determine the parameters of water quality at the fishing locations of the sepatung fish (Pristolepis grootii). Water quality is very influenced by environmental conditions. Kelekar River is one of the rivers located in the area of the flooded swamp area. The water quality characteristics of this river are very influenced by the condition of the surrounding swamps. Based on water acidity (pH) parameters, the quality of river water tends to be acidic, but the sepatung fish (P grootii) can live, grow and develop in this habitat. Water quality in natural waters habitats h can be used as a reference in the maintenance of fish in aquaculture media
IMPROVEMENT IN THE GROWTH PERFORMANCE OF TIGER GROUPER Epinephelus fuscoguttatus (Forsskal, 1775) BY PROBIOTIC MICROCAPSULES, Bacillus sp. D2.2
Get PDFProbiotics in the fish's body are able to optimize the nutrition of feed given for growth. Microcapsule techniques can protect probiotics as they pass through the digestive tract. This study aims to study the increase in growth of tiger grouper fish fed with probiotic Bacillus sp. Microcapsules. D2.2 with different dosages. The study was conducted in May - June (30 days) with 5 treatments and 3 replications. The treatments applied are K- (feed without probiotics), K + (feed + liquid probiotics), A (feed + probiotic microcapsules 1 gram / kg of feed), B (feed + probiotic microcapsules 2 gram / kg of feed), C (feed + probiotic microcapsules 3 grams / kg of feed). The following are the highest observations, namely absolute weight gain (23.8 ± 0.7) grams, specific growth rate (1.35 ± 0.04)% /day, feed covertion ratio (FCR) (1.3 ± 0.1) ), survival rate (83 ± 2.9)% and protein digestibility 90.56% while the lowest value is in the control treatment. The results showed that the administration of probiotic microcapsules was able to significantly increase the growth of tiger grouper fish compared to control treatments
Invasive Status of Tarebia Granifera Based on Density of Population in River of Gunung Sejuk Village, South Buton Regency
Get PDFThis research was conducted from May to August 2020, located in the Wandoke Watershed, Gunung Sejuk Village, South Buton Regency. This study aims to analyze the invasive status of the alien species Tarebia granifera based on the perspective of its population density in the river of Gunung Sejuk village. This research is intended to examine the dominance of T. granifera species to local gastropod commodities in the typical habitats and niches of the Wandoke river. Determination of the station or location of the observation begins with a preliminary survey, making it easier to select and determine research stations. Determination of research stations using purposive sampling technique or method of designating stations deliberately, based on the presence of invasive alien species populations of T. granifera and T. granifera sampling using simple random sampling or T. granifera sampling is done randomly in a square transect measuring 100 m2 , using a quadratic transect measuring 1 m2, with the assumption that each point in the transect measuring 100 m2 has homogeneous conditions. The population density of T. granifera at each station in the months of May - August (Spatial and Temporal) shows the size is not much different, where the density range is 21 ind/m2- 43.33 ind/m2. The results of measurement and population density analysis of T. granifera in the waters of the Wandoke river, Gunung Sejuk village is the massive empirical evidence of the invasive pattern of the thiaridae snail
Population parameters and exploitation level of striped snakehead, Channa striata (Bloch, 1793) in Aopa Swamp, Southeast Sulawesi
No full textStriped snakehead is one of the important economical fish in Aopa Swamp waters. Research on population parameters and exploitation level of striped snakehead was conducted from November 2018 to January 2019. The objective of this research was to analyze population parameters and exploitation level of striped snakehead in the Rawa Aopa waters in Southeast Sulawesi. Fish samples were caught using a fishing trap used by fishermen. A total of 449 individual fish were caught with ranging 20.0-47.0 cm in length and 59.0-994.0 g in weight. Striped snakehead has an isometric growth pattern (b=3.08 ; r=0.96, R2=0.92) with the equation model W=6.10-3L3,08. Striped snakehead reaches its maximum length in size L ͚ = 48.62 cm with a growth coefficient (K) of 0.68 year-1. Fishing mortality (F= 0.87) is higher than natural mortality (0.63). Exploitation level of striped snakehead in Rawa Aopa waters is categorized as overfishing (E> 0.5).Keywords : Striped snakehead, isometrics, overfishing, Aopa Swamp, Southeast Sulawes
Habitat Preference and Abundance of Mole Crab Based on Sea Tides in Coastal Area of Kebumen Regency
Get PDFMole crab is an important resource in the food chain cycle and an initial level consumers in sandy areas. Mole crab lives in the swash zone that is affected by sea tides. Comparison of habitat and abundance of each station based on tides in terms of the type of utilization of the study location. The purpose of this study was to determine the abundance at high tide and low tide, species, and habitat preferences of mole crab, also to determine the relationship between their habitat preferences and their abundance. The method used in this study was descriptive exploratory and uses purposive random sampling technique. Abundance data collection was done by using a 10 x 10meter transect quadrant at two spring tides and two neap tides in the swash zone area. The results showed that the abundance of mole crab at high tide was 214 - 239 ind/100m2 and at low tide was 378 - 509 ind/100m2. There are three types of mole crab that has been found, Emerita emeritus, Hippa adactyla and Albunea symmysta. Favored habitat of mole crab in coast area of Kebumen Regency has a flat to sloping beach, wide swash zone at high tide 14.5 - 24.5m, and at low tide is 20 - 32.5m, medium sized beach sand (0.25-0.5mm), and has low organic material values. The results of the PCA (Principal Component Analysis) analysis that the sediment grain size and the width of the swash zone have a positive correlation with the abundance of mole crab
Fish Plaza as a Centre of Fisheries Product Trading in Tuban Regency, East Java
Get PDFThe purpose of this research is to find out how Plaza Ikan encourages fish traders to increase their business. One of the efforts of the Tuban Regency Government to increase the added value of fish products is to establish a fish Plaza. The fish plaza is an integrated fish auction place that is packaged in a modern way and integrates with the sale of fresh fish, smoked fish and various processed fish. With the concept of integration, it is hoped that the economy of Tuban fishermen will improve. The research method used a qualitative descriptive method, while the data collection using interviews and questionnaire techniques. Of the 30 respondents who answered everyday trading at the fish plaza, 20 respondents strongly agreed, 7 respondents agreed and 3 respondents were doubtful. A comfortable place to sell, 17 respondents strongly agree, 8 respondents agree, 3 respondents doubt, 2 respondents disagree. Profits are increasing, 5 respondents disagreed, 25 respondents strongly disagreed. The consumers are many and varied, 12 respondents strongly agree, 5 respondents agree, 3 respondents doubt, 4 respondents disagree, 6 respondents strongly disagre
Coral Reef Fishes Biodiversity In Pahawang Island,Pesawaran District Lampung
Get PDFThe components of coral reef ecosystem can be described by the unique regulation in community level. Coral reef fishes use coral reef as their habitat and they highly depend on coral reef health. Otherwise, the condition of coral reef health can be predicted by the biodiversity of coral reef fishes. The research aim was describe communities differences between two explored area in marine tourism spots in Pahawang Island. This research was conducted on November 2019 at two stations on the coral reefs ecosystem of Pahawang Island represented the two quitely different area, the marine tourism and the visitor areas. The coral reef fishes were observed by using visual census method with a Line Transect length of 30 meters and a visibility of 2.5 meters left and right of the transect. Coral reef fish community structure was measured by diversity, similarity, and dominancy indexes. A total of 1.940 coral reef fish species from 13 families were recorded. Pomacentridae is the most speciose family (1.091 species), followed by Siganidae (308 species) and Labridae (166 species). Biodiversity of coral reef fishes at Pahawang Island showed results diversity index (H') in both observation stations classified as medium with a low dominance index value (C) and similarity index (E) at both stations classified as high, presumably as a result of tourism activities. The diversity index at station 2 has a greater value than station 1 as a tourist area with diving and snorkeling tourism activities, at station 2 there are more types or genus of reef fish, compared to station 1