bluuebunny/crossref_metadata_2025_split huggingface dataset:
Use of Common Lantana (Lantana camara Linn) Extract to Prevent Ice-ice Disease and Trigger Growth Rate of the Seaweed Kappaphycus alvarezii
Authors: Patadjai R S , Nur I , Kamri S 
Published: December 2019

Abstract
This research aimed to determine and assess the growth, production, and quality of seaweed after pre-treating seedlings using lantana extract. Research on the use of common lantana Lantana camara extract in the culture of the seaweed Kappaphycus alvarezii was carried out both at experimental and mass culture scales at several locations in the coastal waters of South Konawe in Southeast Sulawesi Province, Indonesia. The treatments were soaking seaweed seedlings in solutions of lantana extract with various dosages and soaking times before planting them out in coastal waters. Observed parameters were incidence of ice-ice disease and seaweed growth rate. Results showed that, during the culture period, there was no incidence of ice-ice disease on seaweed seedlings pre-treated with Lantana extract. Thalli were healthy and dark-coloured with no ice-ice disease symptoms, while seaweed seedlings (controls) without extract soaking pre-treatment were paler in colour and ice-ice infected parts of the thalli were white. The result also showed that pre-treatment with lantana extract could increase the growth rate, with the highest net growth at a treatment dosage of 500 ppm with 30 minutes soaking time. The average value of net (absolute) growth (AG) was 387.15 g/clump, equivalent to a 12.9-fold increase from the initial weight of 30 g/clump. The average highest specific growth rate (SGR) was 6.43 %/day, while for seaweed seedlings without immersion in Lantana extract the highest SGR was only 5.86%/day. The highest average production was 417.15 g/clump, while seaweed seeds without extract yielded on average 295.70 g/clump. The highest average carrageenan content was 53.5%, compared to 38.6% for untreated (control) seaweed.
Coral Disease Prevalence on Scleractinian Corals at Prigi Bay, Trenggalek, East Java
Authors: Rosdianto  , Luthfi O M 
Published: December 2019

Abstract
Coral disease prevalence is defined as the ratio of diseased coral colonies to total colonies in a certain place. Coral community health is determined by measuring coral colony health using an index based on the percentage of diseased coral colonies within a quadrat transect. Disease in coral can be triggered by environment factors. Declining seawater quality leads to stress of the coral host and faster growth of pathogens both in the water and the body of the corals, caused coral disease. Prigi Bay is a heavily used area that has valuable ecosystems including coral reefs; however, nowadays the high level of anthropogenic activities in this bay is becoming a threat to coral health. The aim of this research was to examine the coral disease prevalence in Prigi Bay. Three stations were selected as coral disease monitoring stations: Patuk Sewu, Watu Lunyu, and Damas. In total, we surveyed 5,057 coral colonies. The highest coral disease prevalence was found at the Patuk Sewu station (17.23%), while at the Watu Lunyu and Damas stations prevalence was 3.31% and 3.15%, respectively. High coral disease prevalence in Patuk Sewu may cause by the abundance of explained growth anomalies (EGA). EGA is strongly correlated with water quality, which has been associated with the kinds of disease observed. Since Prigi Bay is in the utilization zone, with a busy fishing port and fish processing industries that are likely sources of pollution which could influence water quality and the health of the environment. Coral disease prevalence in Prigi Bay can be considered as high, and future research should focus on other aspects of coral condition and the stressors affecting corals.
The effect of Melastoma malabathricum leaf extract on growth and spawning of blue swimming crab (Portunus pelagicus)
Authors: Alam N , Fujaya Y , Haryati  , Sari D K , Achmad M , Rusdi M , Farizah N 
Published: December 2019

Abstract
The aim of this study was to evaluate the effect of Melastoma malabathricum leaf extract on growth and spawning of the blue swimming crab Portunus pelagicus. This research was conducted from March to May 2019 at the Hasanuddin University mini hatchery in Barru Regency, South Sulawesi Province, Indonesia. The study used five treatment doses of M malabathricum leaf extract: 0, 5, 10, 15, and 20μg/g of female crab body weight. The extract was dissolved in water and an aliquot of 0.1 mL was injected into each crab. The results showed that there was a decrease in growth in all treatments within the first 10 days after injection, but an increase after the 20th day. Doses of 15 and 20 ug/g resulted in the highest spawning rate, ie 100% after 30 days. Crabs with no extract treatment had the lowest spawning rate, which was only 33%. The conclusion of this study is that an appropriate dose of M. malabathricum leaf extract can be used to stimulate spawning of Portunus pelagicus.
The Effect of Dosage Combination and Feeding Frequency on Growth and Survival Rate of Vannamei Shrimp Juveniles in Ponds
Authors: Zainuddin Z , Aslamyah S , Nur K , Hadijah  
Published: December 2019

Abstract
Vannamei shrimp production in Indonesia has experienced a rapid development in the last decade. One of the main problems in the cultivation of vannamei shrimp in ponds is the high use of artificial feed. This study aimed to examine the combination of feed dose and feeding frequency on the growth and survival rate of vannamei shrimp farmed in ponds. Vannamei shrimp juveniles were kept in square floating net cages (1 m x 1 m x 1.5 m) called hapa suspended in the ponds. The feed formulation used corn flour substituted with 50% sweet potato flour as a carbohydrate source. The research used a factorial Completely Randomised Design (CRD). The first factor was the feed dose (3%, 6% and 9% of shrimp bodyweight) and the second factor was the feeding frequency (3, 4 and 5 times per day). There were 3 replicates of each combination of treatments giving a total of 27 experimental units. The experiment lasted 8 weeks. The results showed a significant influence of treatment applied on the growth and survival of juvenile vannamei shrimp. The highest daily growth rate of shrimp was 3.98% obtained with the 3% feed dose treatment combined with the feeding frequency of 4 times per day. The highest survival rate of vannamei shrimp was 80%, obtained with a combination of 3% feed dose and feeding frequencies of 3 and 4 times per day.
Osteological study of Titan Trigger fish, Balistoides viridescens (Bloch and Schneider, 1801) (Balistidae: Tetraodontiformes) from the Spermonde Archipelago Waters
Authors: Afrisal M , Nurjirana  , Irmawati  , Burhanuddin A I 
Published: December 2019

Abstract
The aim of this research was to describe the osteology of Balistoides viridescens. The specimen described was collected from the Paotere Fish Market, Makassar City. The weight and total length of the specimen were 2.85 kg and 46 cm respectively. Osteological description was conducted after the specimen had been prepared and X-rayed. The specimen was cleaned and the flesh separated from the bones (skeleton) using a boiling method. The skeleton was then dried under the sun for 2 weeks. The dried bones were then prepared and arranged for osteological description. Photographs were taken with a Samsung EK-GC100 Camera. The results show that B. viridescens has a compressed body shape, a small mouth with incisiform teeth, 7 abdominal vertebrae, 7 pairs of ribs, 9 caudal vertebrae, and one urostyle vertebra.
Comparing skipjack tuna catch and oceanographic conditions at FAD locations in the Gulf of Bone and Makassar Strait
Authors: Hidayat R , Zainuddin M , Mallawa A , Mustapha M A , Putri A R S 
Published: December 2019

Abstract
This study aimed to compare the differences between characteristics of skipjack tuna (Katsuwonus pelamis) fishing grounds in the Gulf of Bone and in the Makassar Strait. We used catch size and volume data from FAD areas in the Gulf of Bone and Makassar Strait, and satellite image data including sea surface temperature (SST) and chlorophyll-a (CHL-a). We used ECDF (Empirical Cumulative Distribution Function) analysis to determine the relationship between the oceanographic variables and skipjack CPUEs that occurred in the Gulf of Bone and the Makassar Strait. The resulting data for the two fishing areas were then compared using the Spatial Analyst in ArcGIS 10.2. The analysis showed that the average SST and CHL in the Gulf of Bone (30°C and 0.3 mg m−3) were higher than those in the Makassar Strait (29.5°C and 0.24 mg m−3). The size of skipjack tuna caught in the two fishing areas was different. The mean total length of Skipjack tuna caught in the Makassar Strait was 23 cm, while in the Gulf of Bone it was 41 cm. There was little overlap in the size distributions. These data suggest that skipjack tuna caught around FADs in the Gulf of Bone tend to be larger than those in the Makassar Strait which may be stimulated by relatively higher productivity and thus feeding opportunity.
The introduced Banggai cardinal fish (Pterapogon kauderni) population in Ambon Island, Indonesia
Authors: Wibowo K , Arbi U Y , Vimono I B 
Published: December 2019

Abstract
The Banggai cardinalfish Pterapogon kauderni (commonly referred to as BCF) is a fish endemic to the Banggai Islands, Central Sulawesi. Recently, Banggai cardinalfish have been introduced to several regions in Indonesia as a side effect of Banggai cardinalfish trading and mariculture. BCF juveniles cultured by the Balai Perikanan Budidaya Laut (BPBL) Ambon were released in several locations around Ambon Bay during 2014 - 2017. Around 20 - 500 BCF were released at each location. This study was carried out in April 2018 as a first monitoring of Banggai cardinalfish population status at all “restocking” locations in Ambon Bay. The data were collected by SCUBA diving using a Belt Transect method, with BCF size classes based on standard length (SL). The results found Banggai cardinalfish at three out of five monitoring locations. The first location was the Ferry Port, where 20 Banggai cardinalfish were released in 2014; the BCF density was 41 fish/100 m2, dominated by adults (> 3.5 cm SL). The second location was behind the Natural Sciences Faculty of Pattimura University where 20 Banggai cardinalfish were also released in 2014; the density was 73 individuals/100 m2 (with evenly distributed size). The third location was the bridge behind the SUPM campus, where 500 Banggai cardinalfish were released in 2016, but only 2 fish/100 m2 (adults > 3.5 cm SL) were found during the study. No Banggai cardinalfish were found at the other two locations, namely the Port of Ambon and Suli Beach, although there were 500 individuals were released at each of those two locations in 2016 and 2017. These result shows that BCF have been able to adapt and breed rapidly in some coastal areas in Ambon Bay that provide suitable habitat for Banggai cardinalfish.
Grafting of Kappaphycus alvarezii seedlings using different seedling sources in Sasara Coastal Waters, Buton Utara, Southeast (SE) Sulawesi, Indonesia
Authors: Armin  , Aslan L O M , Patadjai A B , Iba W , Yusnaeni  , Muskita W H. 
Published: December 2019

Abstract
Combining local seaweed thalli with tissue culture seedlings through grafting has been suggested as way to improve seaweed Kappaphycus alvarezii seedling quality. The purpose of this study was to investigate the growth of K. alvarezzi seedlings produced from a combination of three seedling sources using a straight connection grafting method. We applied the grafting method using local and tissue-cultured seedlings. The trials took place in the coastal waters of Sasara, Buton Utara, SE Sulawesi, Indonesia from January to April 2019. The grafting combinations were: tissue culture and local; tissue culture and tissue culture; and local with local. The bonding period for all combinations was 9 days after the initial insertion and the success rate was 91.66-93.33%. The grafted seedlings were then cultured for 45 days using a longline technique. The water temperature, salinity, and nitrate and phosphate concentrations affected grafting success. The salinity range was 29-33 ppt and water temperature was 28-32° C. Nitrate and phosphate ranges were 0.263-0.463 mg.L−1 and 0.112-0.218mg.L−1, respectively; turbidity was 1.59-2.35 NTU. The highest daily growth rate was obtained from the grafting of tissue cultured and local strain seedlings (6.51 ± 0.340%.day−1) whereas growth rate was lowest for the local with local grafts (5.76 ± 0.378%.day−1).
The Effect of Different Oblique Incision Length in Slide-Slipped Grafting using Tissue Cultured and Local Seedlings on the Growth of Seaweed (Kappaphycus alvarezii) in Sasara Coastal Waters, Kulisusu Bay, Buton Utara, SE Sulawesi, Indonesia
Authors: Hasriah R , Aslan L O M. , Iba W , Patadjai A B , Ruslaini  , Balubi M , Sulistiani E 
Published: December 2019

Abstract
This research was conducted for four months from January to May, 2019 in Sasara coastal Waters, Kulisusu Bay, Buton Utara, SE Sulawesi, Indonesia. The aim of this research was to determine the best oblique incision length (OIL) to use in slide-slipped grafting using tissue cultured and local seedlings in terms of the growth and carrageenan yield of the seaweed Kappaphycus alvarezii. The treatments used in this study were A: 25-mm OIL, B: 30-mm OIL and C: 35-mm OIL. After 18 days, grafts using all OILs were successfully attached together. The new seedlings were then cultivated for 45 days. The results showed that the daily growth rate (DGR) did not differ significantly between treatments. The 25-mm OIL treatment had the highest DGR (3.98±0.97 %.day−1) followed by 35-mm OIL(3.90 ± 1.32%.day−1 and 30-mm OIL (3.69 ± 0.91 %.day−1). The ratio of fresh weight (FW) to dry weight (DW) also showed no significant differences among treatments. FW:DW ratios of treatments 25 mm OIL, 30 mm OIL, and 35 mm OIL were 8.13:1, 7.42:1, and 5.78:1, respectively. For carrageenan content, 30-mm OIL seedlings of showed higher content but it was not significantly different from the other treatments. Water quality parameters were: salinity 24-32 ppt; temperature 29-31 ° C; nitrate 0.336-0.432 mg.l−1; phosphate 0.195-0.542 ppm; and turbidity 3,124-9,331 NTU.
The effect of differences in feed protein raw materials on the glycogen content, metamorphosis rate of mangrove crab larvae (Scylla olivacea) and feed price
Authors: Haryati  , Fujaya Y , Saade E 
Published: December 2019

Abstract
Feed is one of the factors that determine the success of rearing mangrove crab larvae (Scylla olivacea). The use of artificial feed in the form of micro diet can guarantee higher availability and flexibility of feed. The artificial feed generally used is commercial produced and relatively expensive; therefore research is needed to produce good quality artificial feed at low prices. This study aimed to determine feed with certain protein raw materials that can replace commercial feed in terms of glycogen content of larvae, metamorphosis rate and feed price. The experimental design to determine the treatment effect on larval glycogen content was a completely randomized design of eight treatments with three replicates. The treatments were: A) 100% Artemia meal, B) 100% fish meal, C) 100% squid meal, D) 50% Artemia meal, 50% fish meal, E) 50% Artemia meal, 50% squid meal, F) 50% fish meal, 50% squid meal, G) 35% fish meal, 35% squid meal, 30% Artemia meal as raw material for feed protein and H) commercial feed. The rate of metamorphosis and price of feed were analysed descriptively. Results of the variance analysis showed that the difference in feed protein raw material had a significant effect (p<0.05) on the glycogen content of the megalopa stage larvae. The glycogen content in treatments C and E was not significantly different (p>0.05) but was higher and significantly different (p<0.05) than other treatments. Mangrove crab larvae in treatments A, C, E and F have reached the megalopa stage at the age of 18 days, while other treatments have only reached the new megalopa stage when the larvae were 19 days old. The lowest production cost of making the low budget feed is feed with protein raw material in the form of 100% fish meal and the most expensive one is feed with 100% raw material Artemia meal. Based on the result of this study, feed with protein raw material in the form of 100% squid meal can be used as a substitute for commercial feed, besides providing a better response to glycogen content and metamorphosis rate, the price of this feed is also cheaper than commercial feed.
Evaluating Ecotourism Development in Bontang: Water Quality, Compatibility, and Carrying Capacity
Authors: Aspiany  , Anggoro Sutrisno , Purwanti Frida , Gunawan Bambang Indratno 
Published: December 2019

Abstract
Marine and coastal tourism are both among the largest segments of the tourism industry and fastest growing local economic activities. However, tourism is also one of the main contributors to environmental depletion. This study aimed to evaluate the condition of the water quality, and the compatibility and the regional carrying capacity of the coastal area of Bontang City intended for marine tourism. Data were collected by purposive randomised sampling and used multicriteria analyses, based on the reference point methodology by adjusting parameters for each tourism category. The data were quantified using a matrix method then analysed descriptively. The results showed that the water quality qualified based on water quality standards with pollution index values of 0.72 and 0.80 for Kedindingan Island and Beras Basah Island, respectively. The tourist compatibility index for the mangrove tourism category was very suitable (80.7%), the snorkelling tourism category was appropriate (64.42%) and the beach tourism category also appropriate (78.6%). Furthermore, the regional carrying capacity was 392 people/day for the Beras Basah Island and 10,766 people/day for Kedindingan Island.
Preliminary study: human trampling effects on seagrass density
Authors: Nurdin N , Nafie Y La , Umar M T , Jamal M , Moore A 
Published: December 2019

Abstract
This preliminary study performed a small-scale experimental evaluation of the effects of trampling on tropical seagrass meadows. The study site was Barrang Lompo Island, in the Spermonde Archipelago, South Sulawesi, Indonesia. The experimental design comprised two trampling treatments (trampling by an adult and by children) and a control plot (no trampling). The trampling was carried out daily over a three week period. After trampling (adult or children), the detached seagrass leaf biomass was higher than uprooted seagrass biomass. Trampling by an adult had a greater effect on seagrass density than trampling by children. Three weeks after trampling ceased, both treatment plots exhibited substantial recovery, with final density closer to control density in the plot trampled by children.
Development strategy and increased production of seaweed in Takalar District
Authors: Tahang Hamzah , Latama Gunarto , Kasri  
Published: December 2019

Abstract
This study aimed to examine the development of seaweed in Takalar District. The method used in this study is a survey and direct interview using questionnaires and FGD (Focus Group Discussion) to various parties and stakeholders related to the production and development of seaweed. The study location is located in Takalar District Results The study of strategies for various aspects of development and productivity of seaweed can be applied with; 1) Expanding cultivation land and innovation and developing the latest cultivation technology, 2) Conducting gradual extension of seaweed farmers, 3) Development of seaweed processing industries, 4) Building nurseries to meet the availability of good quality seeds, 5) Conducting Training and Assistance in implementing the latest technological innovations, 6) Providing venture capital assistance and system improvement Warehouse Receipt 7) Scheduling seaweed cropping patterns, 8) Building and developing seaweed storage warehouses, 9) Developing new technologies to overcome pests and diseases in plants seaweed, 10) Conducting seaweed farmer institutional strengthening to strengthen the bargaining position of seaweed prices 11) Improving the quality of seaweed
Seasonal variation in growth and carrageenan yield of Kappaphycus alvarezii (Doty) Doty farmed using mass selection in Bungin Permai Coastal Waters, South Konawe District, Southeast (SE) Sulawesi, Indonesia
Authors: Aslan La Ode M. , Patadjai Rahmad S. , Ruslaini  , Effendy Irwan J. , Sarita Abdul H. , Amina Siti , Nuraeni  , Armin  
Published: December 2019

Abstract
Two methods, tissue culture, and mass selection are generally used to improve the quality of the seedlings of the red algae K. alvarezii. Mass selection is relatively new to be adapted to the Indonesian seaweed farming. In this study we attempted to cultivate the seaweed for 10 months (February-November 2013) in Bungin Permai coastal waters, South Konawe, Indonesia. Cultivation was performed for 30 days of each cycle, using long-line method. Each rope contained had distance between clumps of 15-, 20-, 25- and 30-cm. The selection was carried out until 9th generation. The results showed that the daily growth rates (DGRs) among treatments were found to vary and tended to have seasonal variation. Minimum DGRs occurred in October while the maximum was in April/May. The DGRs range was from 3.81±1.80%/day to 8.32±1.12%/day while mean annual DGRs of 15-, 20-, 25- and 30- cm PD were 6.46±1.98, 6.62±2.00, 6.74±2.01, and 6.90±2.03%/day, respectively. No significant differences was found among four different planting distance. The mean carrageenan (semi-refined carrageenan/SRC) yields were varied among treatments and tended also to have seasonal variation. Minimum SRC of all treatments was varied and occurred in March/June while the maximum SRC were in May/October/November. The carrageenan yields range were from 31.53±2.04% to 48.91±5.05%. The highest mean annual SRC was recorded for 15-cm planting distance (PD) (42.02 ± 3.38%) followed by 30-cm PD (41.58 ± 2.95%), 20-cm PD (41.56 ± 6.03%) and 25-cm PD (41.45 ± 4.09%). The quality of cultivars produced from the selection met international specifications suggesting that mass selection for longer period could be ‘a new method” to produce better quality of seedlings.
Sungkur rolling ship with pushing operation method for fish and shrimp catching in the coastal waters
Authors: Rusmilyansari  , Rosadi Erwin , Iriansyah  , Wahab Aulia Azhar 
Published: December 2019

Abstract
Sungkur ship is used to catch fish and shrimp in the coastal waters of Tanah Laut Regency. The ship is operated actively in a push manner. This research aimed to: (1) Analyze the Sungkur ship enforcement arm during the fishing operation (2) Analyze the Sungkur rolling ship movement in regular wave beam seas conditions. The research was conducted in March-May 2018. The research used an experimental method of the fishing operation. Analysis of data through simulation and numerical using naval architecture formula and the results interpreted descriptively. Equipment that is used includes Sungkur fishery, camera, stationery, measuring instrument, water pass, slide, yarn, pendulum, GPS, stopwatch and computer. The results of study showed that the main dimension value ratio of sample ship L/B = 4.68-7.0, L/D = 5.0– 1.2, and B/D = 1.0-2.0. GZ enforcement arm during operation of the Sungkur ship was above the minimum standard value that has been set IMO that is equal to 0.675. Rolling highs at 14.4° with a wave height of -0.46 m and the lowest rolling at -14.4° with a wave height of 0.46 m.