Portal Jurnal Ilmiah Sekolah Tinggi Ilmu Pertanian (STIP) Wuna Raha
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The effect of papaya leaf extract (Carica papaya) with concentration on egg hatchability of nile tilapia (Oreochromis niloticus)
No full textDelays in hatching of fish eggs are influenced by several factors such as water quality instability during rearing, including; temperature, DO, pH. Papaya leaf is one of the plants that can be used to accelerate the hatchability of fish eggs. Papaya itself can be used as a component to boost the immune system because it contains the enzyme papain. The purpose of this study was to compare the hatchability of nile tilapia (Oreochromis niloticus) eggs in the treatment of papaya leaf extract (Carica papaya) with different doses. This research was conducted at the Punten Cultivation Fisheries Installation, Batu City in December 2022. Using a Completely Randomized Design (CRD) where there were 4 treatments, namely: A) papaya leaf extract 4 mL/L, B) papaya leaf extract 6 mL/L, C ) papaya leaf extract 10 mL/L, and D) control without treatment. In each treatment there were 3 repetitions. The ANOVA test was used to compare the effect of papaya leaf extract on hatchability of tilapia eggs, and was followed up with the BNT test if there were significant differences in the treatments. The results showed that there were significant differences in the treatment with the addition of papaya leaf extract on the hatchability of tilapia eggs, with 4 mL/L treatment) being the best treatment in increasing the hatchability percentage of tilapia eggs by 88.33%. There is a tendency that the higher the papaya leaf extract, the egg hatchability decreases
Comparison of probiotics with different concentrations on the growth and survival rate of Bonylip Barb (Osteochilus vittatus)
No full textBonylip barb (Osteochilus vittatus) is one of Indonesia's local fish which is starting to bloom in cultivation. One of the important needs in the development of fish farming is feed, to increase feed efficiency by providing probiotics which play a role in increasing growth, survival rates, digestibility, feed efficiency, the immune system and the composition of beneficial bacteria in the digestive tract of fish. This study aims to compare the concentration of different probiotics in commercial feed on the growth and survival of barley nilem (Osteochilus vittatus). The research was conducted at Pandaan Aquaculture Installation (IPB), Pasuruan Regency, East Java. Experimental study using a completely randomized design (CRD) with four treatments and three replications. Statistical analysis to compare growth performance (length and weight) and survival of nilem fish used analysis of variance (ANOVA) test. The results showed that there were differences in the growth of weight, length, and survival of barley nilem (Osteochilus vittatus) on commercial feed with different concentrations of probiotics. Where there is a tendency that the higher the concentration of probiotics in commercial feed, the higher the growth in length and weight and survival of nilem fish (O. vittatus)
Community structure of macrozoobenthos in seagrass bed on Barrang Lompo Island
No full textMacrozoobenthos are bottom animals that play an important role in the productivity of waters in seagrass beds. This study aims to determine the species composition, density of macrozoobenthos, community structure of macrozoobenthos and the relationship between seagrass density and density of macrozoobenthos. The research method used is purposive sampling method, this method is taken based on certain reasons and criteria. This research was conducted in June-July 2022 on Barrang Lompo Island. Sangkarrang District, Makassar City. There were 26 species found consisting of 4 classes namely Bivalvia, Gastropods, Chepalopods and Crustacea with a total of 283 ind and dominated by the Gastropod class, both from the number of species and individual density. Macrozoobenthos community structure on Barrang Lompo Island at station I and II with a moderate diversity index (H'), moderate uniformity index (E') and low dominance index (D). The types of seagrass found at stations I and II were Enhalus acoroides, Thalassia hemprichii, and Cymodocea rotundata. The regression results of the relationship between seagrass density and macrozoobenthos density on Barrang Lompo Island show a weak relationship, which means that seagrass density has no relationship with macrozoobenthos density but macrozoobenthos density is influenced by physical and chemical factors of the waters and the type of sandy substrate
The estimation of carbon storage in the seagrass meadows of Badi Island
No full textGlobal warming is becoming increasingly apprehensive day by day, marked by the continued increase in levels of carbon dioxide (CO2) in nature. One of the efforts made to reduce the effects of global warming is biosequestration by empowering photosynthetic organisms, one of which is seagrass beds. This study aims to measure the density and percentage of seagrass cover, biomass value, and estimate carbon storage in seagrass biomass in the form of tissue at the top (leaves and upright stems) and tissue at the bottom (roots and rhizomes), as well as estimate carbon storage in sediments. Sampling was carried out using line transect and quadrant plot methods at each station. Calculation seagrass carbon storage using the Loss of Ignition (LOI) method at the Soil Chemistry Laboratory of the Pangkep State Agricultural Polytechnic, a total of 5 species of seagrass were found, namely Enhalus accoroides, Thalassia hemprichii, Halodule uninervis, Halopila ovalis, and Cymodocea rotundata. The average seagrass carbon storage on Badi Island is 18.92 gC/m2, or 0.189 MgC/ha. The species that act as the largest contributor to carbon storage are Cymodocea rotundata, namely 35.44 gC/m2, and Halopila ovalis, which acts as the lowest contributor to carbon storage, namely 1.92 gC/m2. The average seagrass carbon storage at the bottom of the substrate was three times greater than that at the top of the substrate, namely 14.10 gC/m2 at the bottom and 4.82 gC/m2 at the top. The average carbon storage in sediments is 10.98 gC/m2, or 0.109 MgC/ha
The effect of different salting methods on the quality of salted barracuda fish (Sphyraena barracuda) in Barru Regency
No full textThis study aimed to know the effect of salting methods with different concentrations on the quality and organoleptic value of salted barracuda fish (Sphyraena barracuda). This research was conducted from June to July 2020 at the Sumpang Binangae Fish Port, Mangempang Village, Barru Regency. The research method used was an experimental method with four treatments, namely treatment A (salting barracuda with 15% salt concentration), treatment B (salting barracuda with a dry method using 20% salt concentration), treatment C (salting barracuda with a wet method using 15% salt concentration), and treatment D (salting barracuda with a wet method using 20% salt concentration and soaked for six hours). Data analysis used the ANOVA test. The results showed that the highest average value of waer content in sample C was 28.16%. The highest average values of ash and salt content in sample B were 22.11% and 12.38%. The highest average ALT value in sample C was 1.1x104 colonies, while the highest average organoleptic value was in sample D 8.67. This study concludes that the salting of salted barracuda has a significant effect on water content, ash content, salt content, and ALT. The results of the ANOVA for the organoleptic value in terms of appearance, smell, texture, and taste had a significant effect while the organoleptic value of fungi had no significant affected
Sustainability status of People's Salt Pond Businesses in the coastal area of Labakkang District Pangkep Regency
No full textLabakkang District is the only coastal district in Pangkep Regency that has the potential for salt pond business activities. The people's salt farming business is a business that has been carried out by the people in this area for a long time, but there are several problems, namely the large amount of unused land, low quality of salt, low selling price and lack of market absorption, therefore a study is needed to see the sustainability status of the business. the. This research aims to determine the sustainability status of people's salt businesses in Labakkang District, Pangkep Regency. The analytical method used in this research is sustainability status analysis with "SIOS" (sustainability index of salt) modified from the Rapfish analysis program. to find out the sustainability status of the people's salt business. Based on the results of the analysis of sustainability status using the sustainability index approach, it shows that the value of the ecological dimension (85.98), the economic dimension (80.79) and the institutional dimension (75.91) are all included in the sustainable category, while the value of the social dimension is (57.63). falls into the moderately sustainable category
Survival rate of tiger shrimp (Penaeus monodon) pre and post infected with White Spot Syndrome Virus (WSSV) fed with the addition of miana leaf extract (Coleus scutellarioides)
No full textThe plant species of miana (Coleus scutellariodes) has been historically recognised for its antiviral properties. However, there is currently no scientific evidence supporting the efficacy of miana leaf extract in preventing White Spot Syndrome Virus (WSSV) in tiger prawns (Penaeus monodon) when administered via feed. This study aimed to determine the impact of including miana leaf extract in the diet on the survival percentage of tiger prawns that have been infected with the WSSV. The study was carried out between June and August 2023 in the Laboratory of Parasite and Fish Disease and the Hatchery Laboratory of Hasanuddin University. This study employed a completely randomized experimental design consisting of five distinct treatments, each with three replicates. The experimental treatments included the control group (treatment A), where food was provided without the inclusion of miana leaf extract. Furthermore, there were four treatment groups (treatments B, C, D and E) where feed was supplemented with miana leaf extract at concentrations of 125, 250, 500, and 750 µg mg-1 feed, respectively. Rearing was performed in two phases: preinfection (25 days) and post- infection (7 days). The statistical results of the statistical on pre-WSSV infection indicated that the addition of miana leaf extract to the food resulted in survival that was not significantly different (p>0.05). The results were different post-infection, significantly (p<0.05) the shrimp fed with the addition of miana leaf extract were higher than those without the extract. Furthermore, there was a significant difference in shrimp survival between pre- and post-WSSV infection. WSSV mitigation through immunostimulants using miana leaf extract, which is inexpensive and environmentally friendly, has the potential to minimize the impact of WSSV infection
Structure community of mudskipper at Coast of Bahak Indah, Tongas, Probolinggo – East Java
No full textMangrove forest is one of the ecosystems in the coastal area that plays an important role as a habitat for iktiofauna, one of which is the gelodok fish community. The purpose of this study was to compare the community structure of mudskippers at Bahak Indah Coast, Tongas, Probolinggo with or without mangrove vegetation. The study was conducted in January–February 2022. The determination of the observation station was carried out purposively, which was determined based on the presence or absence of mangrove vegetation. Observation of the mudskipper community used a systematic sampling method with the help of transects and plots. The analyzed mudskipper community structure data included diversity index, uniformity index and dominance index. The results found 4 species from 2 genera of mudskipper namely Boleophthalmus pectinirostris, Boleophthalmus boddarti, Periophthalmus chrysospilos and Periophthalmodon schlosseri. Mudskipper diversity index at both stations was in the medium category, and was higher at the stations with mangrove vegetation. The uniformity index was included in the high category, and was higher at the stations with mangrove vegetation, and the dominance index was in the low category, and lower at the stations with mangrove vegetation. The results of this study indicate that the coastal waters area with mangrove vegetation contributes to the high diversity and uniformity of the mudskipper community compared to areas without mangrove vegetation
Morphometric characteristic of seagrass Thalassia hemprichii in the waters of Barrang Lompo island and Kodingareng Lompo island
No full textSeagrass beds in the waters of Barrang Lompo Island and Kodingareng Lompo have their own characteristics, especially for the type of Thalassia hemprichii. The purpose of this study was to determine the morphometric characteristics of seagrass Thalassia hemprichii and the environmental conditions of the waters on Barrang Lompo Island and Kodingareng Lompo Island. This research was conducted in June-July 2022 in the waters of Barrang Lompo Island and Kodingareng Lompo Island. The research method used was purposive sampling. Morphometrics of seagrass Thalassia hemprichii on Barrang Lompo Island at station 1 average leaf length 10.88 cm, leaf width 1 cm, rhizome length 5 cm, root length 6.46 cm, number of roots 8. At station 2 leaf length measures 7.5 cm, leaf width 1 cm, rhizome length 7.84 cm, root length 6.64 cm and number of roots 5. Meanwhile on Kodingareng Lompo Island at station 1 the size of leaf length was 10.33 cm, leaf width 1 cm, rhizome length 4 cm , root length 4.33 cm and number of roots 5. At station 2 the size of leaf length was 9.63 cm, leaf width 1 cm, rhizome length 4.85 cm, root length 4 cm, number of roots 5. Morphometrics of seagrass Thalassia hemprichii on islands Barrang Lompo and Kodingareng Lompo islands did not show a significant difference. The environmental conditions of the waters on both islands are still in optimum conditions for seagrass growth for the parameters of current speed and brightness
Identification of mangrove species based on substrate characteristics in Borimasunggu Village, Labakkang District, Pangkep Regency
No full textMangroves are coastal ecosystems that have many benefits, including the ecological benefits of being a source of nutrients for marine life (aquatic biota) and a source of food for land biota. This study aimed to determine the species composition and community structure of mangrove vegetation based on the substrate type and the relationship between mangrove density and substrate texture in Borimasunggu Village, Labakang District. This research was carried out from July to August 2021 in the Borimasunggu Village, Labakkang District, Pangkep Regency. The research method is purposive random sampling which is divided into 3 stages. At each station, 3 transects/plots are determined. The study results found 3 mangrove species in Borimasunggu Village, Labakang District, based on the type of substrate, namely Rhizophora stylosa, Avicennia alba, and Sonneratia alba species. Relative Frequency (RFi) in Borimasunggu Sub-District, Labakang District, was found for all species equally, namely 33.33, the highest relative cover (RCi) was the species Rhizophora stylosa, which was 39.25, and the lowest Relative Coverage (RCi) was the mangrove species Sonneratia alba, which was 26,15. While the highest Significance Value (INP) is the mangrove species Rhizophora stylosa, which equals 148.66%, and the lowest Important Value (INP) is the mangrove species Sonneratia alba, which is equal to 70.59%. The highest relative density (RDi) was found in the mangrove species Rhizophora stylosa, which was 74.07% with a clay substrate type, followed by Avicennia alba 14.81% and Sonneratia alba 11.11% with a dusty clay substrate types