Pub Date : 2020-05-27DOI: 10.14710/ik.ijms.25.2.75-84
E. Wibowo, E. Yuwono, P. Sukardi, A. S. Siregar
The worm Dendronereis pinnaticirris is used as feed of shrimp broodstock in a hatchery, mainly because of its availability in the local market, and its nutritional content required for improving gonad maturation and post larvae production. The important economic value of the worm and the increasing demand for feed in shrimp hatcheries have led to an intense exploitation that suppers its population and the sustainability of the whole estuarine ecosystem. The study, which represents the starting point of large-scale production of the polychaete worm by culture in the artificial system, shall be undertaken. Accordingly, a production study using D. pinnaticirris juvenile was carried out under controlled conditions fed with two different feed (feed contains mainly plant protein and animal protein, respectively), and kept in three different substrates (substrate consists of mud and 8.78%, 37.34%, 39.17% sand, respectively). The treatments were arranged according to randomized completely block design in 8 (eight) replicates. The survival rate, body weight increment and growth, oxygen consumption, proximate body chemical, and fatty acid contents were measured. The results showed that g rowth and oxygen consumption was significantly influenced by a substrate and feed type (P <0.05). Worms on the mud substrate with 39.17% sand, and feed containing vegetable protein showed the highest oxygen consumption. Survival rate and chemical body content were not significantly influenced by the type of substrate and feed (P<0.05). The protein content of the worm was 32.02-43.81%, while fat content was 2.41-9.89%. Twenty different fatty acids were identified in the worm of all treatment groups.
{"title":"Survival Rate, Growth And Chemical Content of Dendronereis pinnaticirris (Polychaeta, Nereidae) In Maintenance With Different Food And Substrate","authors":"E. Wibowo, E. Yuwono, P. Sukardi, A. S. Siregar","doi":"10.14710/ik.ijms.25.2.75-84","DOIUrl":"https://doi.org/10.14710/ik.ijms.25.2.75-84","url":null,"abstract":"The worm Dendronereis pinnaticirris is used as feed of shrimp broodstock in a hatchery, mainly because of its availability in the local market, and its nutritional content required for improving gonad maturation and post larvae production. The important economic value of the worm and the increasing demand for feed in shrimp hatcheries have led to an intense exploitation that suppers its population and the sustainability of the whole estuarine ecosystem. The study, which represents the starting point of large-scale production of the polychaete worm by culture in the artificial system, shall be undertaken. Accordingly, a production study using D. pinnaticirris juvenile was carried out under controlled conditions fed with two different feed (feed contains mainly plant protein and animal protein, respectively), and kept in three different substrates (substrate consists of mud and 8.78%, 37.34%, 39.17% sand, respectively). The treatments were arranged according to randomized completely block design in 8 (eight) replicates. The survival rate, body weight increment and growth, oxygen consumption, proximate body chemical, and fatty acid contents were measured. The results showed that g rowth and oxygen consumption was significantly influenced by a substrate and feed type (P <0.05). Worms on the mud substrate with 39.17% sand, and feed containing vegetable protein showed the highest oxygen consumption. Survival rate and chemical body content were not significantly influenced by the type of substrate and feed (P<0.05). The protein content of the worm was 32.02-43.81%, while fat content was 2.41-9.89%. Twenty different fatty acids were identified in the worm of all treatment groups.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"120 1","pages":"75-84"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79542115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-27DOI: 10.14710/ik.ijms.25.2.57-65
A. Asmara, E. Sedyadi, Ilma Fistannisa Zette
Sargassum is known to have potential ingredient s, such as essential nutrients and minerals , which are important for agroindustry and the environment . This study aims to determine the proximate propertie s of Sargassum polycystum C.A. Agardh from Lange beach and the optimum extraction period arising the liquid product. The dried seaweed was extracted using 0.1% KOH at a constant temperature of 80°C for 120 – 600 mins. Furthermore, nutrients content , pH, electrical conductivity (EC ) and total dissolved solids (TDS) of the afforded filtrate w ere quantified. As a result, the moisture, ash, fibre, carbohydrate, protein, and fat content were 7.16, 13.057, 20.33, 51.77, 6.12, and 1.57%, respectively. The value of pH, EC, and TDS ranged around 4.69–7.27, 0.013–0.078 dS.m -1 , and 6.24–39.75 mg.L -1 , respectively. The level of N, P, K, and organic C, were estimated around 0.30–0.81, 0.16–0.28, 0.15–0.20, and 0.32–0.80%, respectively. Meanwhile, the content of Na, Mg, Ca, Fe, Mn, and Zn were observed from 112.04–212.61, 24.60–33.57, 146.59–280.92, 416.22–630.69, 18.25–27.73, and 19.86–26.53 ppm, respectively. In conclusion , extraction for 120 mins seems to be preferable , as the observed parameters were above the minimum range.
{"title":"Characteristics of Liquid Product of Alkaline Treated Sargassum polycystum C.A. Agardh. from Lange Beach, Aceh","authors":"A. Asmara, E. Sedyadi, Ilma Fistannisa Zette","doi":"10.14710/ik.ijms.25.2.57-65","DOIUrl":"https://doi.org/10.14710/ik.ijms.25.2.57-65","url":null,"abstract":"Sargassum is known to have potential ingredient s, such as essential nutrients and minerals , which are important for agroindustry and the environment . This study aims to determine the proximate propertie s of Sargassum polycystum C.A. Agardh from Lange beach and the optimum extraction period arising the liquid product. The dried seaweed was extracted using 0.1% KOH at a constant temperature of 80°C for 120 – 600 mins. Furthermore, nutrients content , pH, electrical conductivity (EC ) and total dissolved solids (TDS) of the afforded filtrate w ere quantified. As a result, the moisture, ash, fibre, carbohydrate, protein, and fat content were 7.16, 13.057, 20.33, 51.77, 6.12, and 1.57%, respectively. The value of pH, EC, and TDS ranged around 4.69–7.27, 0.013–0.078 dS.m -1 , and 6.24–39.75 mg.L -1 , respectively. The level of N, P, K, and organic C, were estimated around 0.30–0.81, 0.16–0.28, 0.15–0.20, and 0.32–0.80%, respectively. Meanwhile, the content of Na, Mg, Ca, Fe, Mn, and Zn were observed from 112.04–212.61, 24.60–33.57, 146.59–280.92, 416.22–630.69, 18.25–27.73, and 19.86–26.53 ppm, respectively. In conclusion , extraction for 120 mins seems to be preferable , as the observed parameters were above the minimum range.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"21 1","pages":"57-65"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87796892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-27DOI: 10.14710/IK.IJMS.25.2.45-52
O. Olopade, H. Dienye, Cynthia Okonkwo
Biometric indices of Pomadasys jubelini from Obuama Creek, Rivers state, Nigeria were investigated using length frequency distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), condition factors (allometric, K A , Fulton’s, K F and relative, K R ). Specimens were captured in a stretch of the creek from March to September 2019. A total of 229 specimens were examined with the total length (TL) and weight (W) ranging from 8.7 to 50.4 cm and 8.7 to 834.5 g respectively. The standard length (SL) ranged from 5.3 to 46.8 cm, fork length (FL) was between 6.5 to 48.7 cm and the girth length (GL) varied from 4.7 to 38.7 cm. The relationships of weight-length showed a negative allometric growth pattern with a value of "b" of 2,666. Fulton's condition factor (K F ) ranged from 0.10 to 5.45, with an average of 1.21±0.66 indicating perfect wellbeing for the species. The LLR's allometric coefficient ' b ' between TL vs. FL and TL vs. GL showed positive allometric growth, while SL vs. FL, SL vs. TL, SL vs. GL, and GL vs. TL showed negative allometric growth, although the values were close to 1. These findings also provided some new and updated information on some of the morphometric characters of Pomadasys jubelini in Obuama Creek that could be useful for fisheries management and fish species protection measures in the creek and adjacent habitats.
{"title":"Biometric Indices and Condition factors of Pomadasys jubelini (Cuvier, 1830) from Obuama Creek, Nigeria","authors":"O. Olopade, H. Dienye, Cynthia Okonkwo","doi":"10.14710/IK.IJMS.25.2.45-52","DOIUrl":"https://doi.org/10.14710/IK.IJMS.25.2.45-52","url":null,"abstract":"Biometric indices of Pomadasys jubelini from Obuama Creek, Rivers state, Nigeria were investigated using length frequency distributions (LFDs), length-weight relationships (LWRs), length-length relationships (LLRs), condition factors (allometric, K A , Fulton’s, K F and relative, K R ). Specimens were captured in a stretch of the creek from March to September 2019. A total of 229 specimens were examined with the total length (TL) and weight (W) ranging from 8.7 to 50.4 cm and 8.7 to 834.5 g respectively. The standard length (SL) ranged from 5.3 to 46.8 cm, fork length (FL) was between 6.5 to 48.7 cm and the girth length (GL) varied from 4.7 to 38.7 cm. The relationships of weight-length showed a negative allometric growth pattern with a value of \"b\" of 2,666. Fulton's condition factor (K F ) ranged from 0.10 to 5.45, with an average of 1.21±0.66 indicating perfect wellbeing for the species. The LLR's allometric coefficient ' b ' between TL vs. FL and TL vs. GL showed positive allometric growth, while SL vs. FL, SL vs. TL, SL vs. GL, and GL vs. TL showed negative allometric growth, although the values were close to 1. These findings also provided some new and updated information on some of the morphometric characters of Pomadasys jubelini in Obuama Creek that could be useful for fisheries management and fish species protection measures in the creek and adjacent habitats.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"43 1","pages":"45-52"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86912090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-27DOI: 10.14710/IK.IJMS.25.2.85-90
Y. I. Permatahati, Nila Nikmatia Bugis, L. Sara, T. F. Hasuba
The blue swimming crab (BSC) fishery in Tiworo Strait has been heavily exploited since 2 decades ago when its worldwide demand and price is very high. Study on population aspects of this organism in this waters is limited. The aim of present study was to know growth patterns, population stock status, and size at first gonad maturity of this organism. The study was conducted from January to May 2018. Study locations were chosen at fishing grounds of Bangko and Gala islands. Samples of BSC were taken monthly using gillnet and collapsible trap. Each sample taken was identified its sex, measured its carapace width using caliper (0.1 mm), and weighed its body weight using electronic balance (1 g). Data collected from fishing ground of BSC was analyzed to find out growth patterns, population stock status using spawning potential ratio (SPR) method, and the first gonad maturity (CW 50 ). The results of study showed that growth patterns of BSC male and female following isometric growth patterns (b = 3.0) (p 20%), while the size at first gonad maturity (CW 50 ) was attained at carapace width of 9.16 cm and 10.16 cm, respectively. Those imply that BSCs allowed to be caught should be > 10 cm.
{"title":"Stock Status of Blue Swimming Crab (Portunus pelagicus Linnaeus, 1758) in Tiworo Strait Waters, Southeast Sulawesi, Indonesia","authors":"Y. I. Permatahati, Nila Nikmatia Bugis, L. Sara, T. F. Hasuba","doi":"10.14710/IK.IJMS.25.2.85-90","DOIUrl":"https://doi.org/10.14710/IK.IJMS.25.2.85-90","url":null,"abstract":"The blue swimming crab (BSC) fishery in Tiworo Strait has been heavily exploited since 2 decades ago when its worldwide demand and price is very high. Study on population aspects of this organism in this waters is limited. The aim of present study was to know growth patterns, population stock status, and size at first gonad maturity of this organism. The study was conducted from January to May 2018. Study locations were chosen at fishing grounds of Bangko and Gala islands. Samples of BSC were taken monthly using gillnet and collapsible trap. Each sample taken was identified its sex, measured its carapace width using caliper (0.1 mm), and weighed its body weight using electronic balance (1 g). Data collected from fishing ground of BSC was analyzed to find out growth patterns, population stock status using spawning potential ratio (SPR) method, and the first gonad maturity (CW 50 ). The results of study showed that growth patterns of BSC male and female following isometric growth patterns (b = 3.0) (p 20%), while the size at first gonad maturity (CW 50 ) was attained at carapace width of 9.16 cm and 10.16 cm, respectively. Those imply that BSCs allowed to be caught should be > 10 cm.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"37 1","pages":"85-90"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87443787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-27DOI: 10.14710/ik.ijms.25.2.66-74
M. Mujiyanto, M. G. García, J. Haryadi, R. Rahayu, R. Budikusuma
Coral reef is an important underwater ecosystem supporting people’s lives in coastal areas. One of the communities depending on the coral reef ecosystem for its food, livelihood, shoreline protection, and recreation needs is a community in Tunda Island. This research aims to analyze and determine the health status of coral reef in the island using a survey method. It was conducted in July 2018 and July 2019. Underwater photography transects were established at two depth areas of ± 3-4 m (shallow water) and ± 10-11 m (reef slope). Analysis of the results of live coral cover was divided into eight categories of groups based on CPCe output series 4.1. The values of coral reef cover at first depth (± 3-4 m) were 64.86% (east side of the island), 55.76% (north toward east side), and 32.22% (west side). The values of coral reef cover at second depth (± 10-11 m) were 36.36%, 25.00%, and 23.63% on the north toward east, east, and central north sides of the island, respectively. In shallow waters of Tunda Island, the coral reef health is classified as moderate to good, mostly those located on the east and the north toward the east sides. At reef slope, the coral reef health is classified as damaged to poor, particularly those located on the south and the south toward the west sides. The difference in the health values implies that most corals occur in shallow waters while deep corals differ from those near the surface and are not safe from impacts of the activities in the coastal area of Tunda Island.
{"title":"Health Status of Coral Reef in Tunda Island, Banten Province, Indonesia","authors":"M. Mujiyanto, M. G. García, J. Haryadi, R. Rahayu, R. Budikusuma","doi":"10.14710/ik.ijms.25.2.66-74","DOIUrl":"https://doi.org/10.14710/ik.ijms.25.2.66-74","url":null,"abstract":"Coral reef is an important underwater ecosystem supporting people’s lives in coastal areas. One of the communities depending on the coral reef ecosystem for its food, livelihood, shoreline protection, and recreation needs is a community in Tunda Island. This research aims to analyze and determine the health status of coral reef in the island using a survey method. It was conducted in July 2018 and July 2019. Underwater photography transects were established at two depth areas of ± 3-4 m (shallow water) and ± 10-11 m (reef slope). Analysis of the results of live coral cover was divided into eight categories of groups based on CPCe output series 4.1. The values of coral reef cover at first depth (± 3-4 m) were 64.86% (east side of the island), 55.76% (north toward east side), and 32.22% (west side). The values of coral reef cover at second depth (± 10-11 m) were 36.36%, 25.00%, and 23.63% on the north toward east, east, and central north sides of the island, respectively. In shallow waters of Tunda Island, the coral reef health is classified as moderate to good, mostly those located on the east and the north toward the east sides. At reef slope, the coral reef health is classified as damaged to poor, particularly those located on the south and the south toward the west sides. The difference in the health values implies that most corals occur in shallow waters while deep corals differ from those near the surface and are not safe from impacts of the activities in the coastal area of Tunda Island.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"298 1","pages":"66-74"},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76298135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-25DOI: 10.14710/IK.IJMS.25.3.103-109
Renni Yuniati, B. Sulardiono
Sea cucumber, Holothuria scabra, can be found abundantly in Indonesian seas, which is also known to possess several medicinal properties. Spirulina platensis is another marine resources that has recently been extensively researched for its medicinal ability, such as anti-inflammatory effect. This study aims to evaluate the efficacy of H. scabra extract combined with S. platensis extract in reducing inflammation. This study uses male Wistar rats as the study animal. Inflammation was induced by injecting carrageenan solution into the mice paw. Combination of H. scabra and S. platensis extract with various combination ratio (1:1; 1:2; and 2:1) was applied to the mice paw. Diclofenac sodium was used as the standard control therapy. Edema inhibition rate and anti-inflammatory efficacy were measured by analyzing the edema size and calculating the edema difference. Combination of H. scabra and S. platensis with 1:1 ratio has the largest edema inhibition volume compared to the other treatments. H. scabra and S. platensis combination outperforms the positive diclofenac sodium control group in terms of edema inhibition. The highest anti-inflammatory effect is obtained in the combination of H. scabra and S. platensis with 1:2 ratio, however, the anti-inflammatory efficacy is not as potent as the positive control. The effectivity of Holothuria scabra and Spirulina platensis extract in reducing the edema might be caused by their ability to reduce the levels of several inflammatory markers, including IL-6, NO, MMP9, and COX-2. This result suggests that H. scabra and S. platensis combination has anti-inflammatory effect shown in mice paw edema model.
{"title":"Effectivity of Holothuria scabra and Spirulina platensis extract combination as an Antiinflammatory Agent Measured by Carrageenan-induced Rat Paw Edema","authors":"Renni Yuniati, B. Sulardiono","doi":"10.14710/IK.IJMS.25.3.103-109","DOIUrl":"https://doi.org/10.14710/IK.IJMS.25.3.103-109","url":null,"abstract":"Sea cucumber, Holothuria scabra, can be found abundantly in Indonesian seas, which is also known to possess several medicinal properties. Spirulina platensis is another marine resources that has recently been extensively researched for its medicinal ability, such as anti-inflammatory effect. This study aims to evaluate the efficacy of H. scabra extract combined with S. platensis extract in reducing inflammation. This study uses male Wistar rats as the study animal. Inflammation was induced by injecting carrageenan solution into the mice paw. Combination of H. scabra and S. platensis extract with various combination ratio (1:1; 1:2; and 2:1) was applied to the mice paw. Diclofenac sodium was used as the standard control therapy. Edema inhibition rate and anti-inflammatory efficacy were measured by analyzing the edema size and calculating the edema difference. Combination of H. scabra and S. platensis with 1:1 ratio has the largest edema inhibition volume compared to the other treatments. H. scabra and S. platensis combination outperforms the positive diclofenac sodium control group in terms of edema inhibition. The highest anti-inflammatory effect is obtained in the combination of H. scabra and S. platensis with 1:2 ratio, however, the anti-inflammatory efficacy is not as potent as the positive control. The effectivity of Holothuria scabra and Spirulina platensis extract in reducing the edema might be caused by their ability to reduce the levels of several inflammatory markers, including IL-6, NO, MMP9, and COX-2. This result suggests that H. scabra and S. platensis combination has anti-inflammatory effect shown in mice paw edema model.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"126 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90416766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-11DOI: 10.14710/IK.IJMS.25.3.115-120
Winesti Tubagus, S. Sunarto, M. R. Ismail, L. P. Yuliadi
Microplastic is one of the pollutants that can contaminate marine biota even spread in sea waters and coastal substrate because of the sizes ranges to 10 μm - 2 mm. This pollutant is spread in marine waters and found in the area of Seribu Island, Pari Island Area, DKI Jakarta. This research aims to identify the amount of abundance, type, size, and color of microplastic that was found in sediment and shell samples. The research method used was a survey method and laboratory analysis. The method consists of three parts, namely field data collection, identification using a microscope, and describing the results of identification. All sediment and shell samples were identified as being contaminated with microplastics. Microplastic are found in fiber, fragment, and film type. That color found including black, yellow, red, blue, green, chocolate, and clear. The most dominant microplastic color is black and the most dominant microplastic size is the small size group. The highest microplastic abundance in sediment samples from 3 stations is found in samples taken by station 2 with an average of 43.67 particles. 100 g-1 of dry sediment and the most dominant type is the fiber type from all sediment samples. The most dominant type of mussels sample is fragment type and the average abundance of microplastics in the highest sample of mussels is worth 17.33 particles.ind-1.
{"title":"Identification of Microplastic Composition on Clams (Gafrarium tumidum) and Sediments in Seribu Island, Pari Island Area, DKI Jakarta","authors":"Winesti Tubagus, S. Sunarto, M. R. Ismail, L. P. Yuliadi","doi":"10.14710/IK.IJMS.25.3.115-120","DOIUrl":"https://doi.org/10.14710/IK.IJMS.25.3.115-120","url":null,"abstract":"Microplastic is one of the pollutants that can contaminate marine biota even spread in sea waters and coastal substrate because of the sizes ranges to 10 μm - 2 mm. This pollutant is spread in marine waters and found in the area of Seribu Island, Pari Island Area, DKI Jakarta. This research aims to identify the amount of abundance, type, size, and color of microplastic that was found in sediment and shell samples. The research method used was a survey method and laboratory analysis. The method consists of three parts, namely field data collection, identification using a microscope, and describing the results of identification. All sediment and shell samples were identified as being contaminated with microplastics. Microplastic are found in fiber, fragment, and film type. That color found including black, yellow, red, blue, green, chocolate, and clear. The most dominant microplastic color is black and the most dominant microplastic size is the small size group. The highest microplastic abundance in sediment samples from 3 stations is found in samples taken by station 2 with an average of 43.67 particles. 100 g-1 of dry sediment and the most dominant type is the fiber type from all sediment samples. The most dominant type of mussels sample is fragment type and the average abundance of microplastics in the highest sample of mussels is worth 17.33 particles.ind-1.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79095023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-08DOI: 10.14710/ik.ijms.25.1.23-30
S. Adibrata, M. Yusuf, Cristiana Manullang
Monitoring the health of the reared fish in a floating net cage (FNC) is often conducted by examining their ectoparasites. Th is study determine s ectoparasite prevalence s of grouper fish (Epinephelus fuscogutatus x E. polyphekadion ). It was conducted in the waters surrounding Pongok Island, South Bangka Regency. The health examination of both fish and ectoparasites w as carried out by apply ing simple random sampling during three periods, November 2016 (I), February 2017 (II) and May 2017 (III) . H ydro-oceanography surve ys were done every month during th e th ree year s . The grouper checking s (I, II and III) indicated the prevalences of ectoparasites in these periods were 43.3%, 8.8% and 13.5%, respectively. Fish death highly occurred in the period I , and the grouper surviv al rate at harvesting time was only 70% from initial seed stocking of 1 , 500 fish. T he ectoparasite intensit ies during the research periods we re 1.6, 1.6 and 1.5, respectively. This condition implies that every 10 grouper s would potentially be attacked by at least 15-16 ectoparasites. A slow seawater current flow trigger ed the quick uplifting of the ectoparasites from the seafloor. The water condition at the FNC location in 2011 and 201 7 was still under the quality standard. Th e ectoparasites were coming from the surrounding environment of the FNC location . I t is inevitable that the fish culture management should focus on cleansing the ectoparasites attaching on the groupers, dusting the net cage clean, and arranging the harvest pattern on a particular month following the surrounding environmental condition to prevent ectoparasite attacks .
监测在浮动网箱(FNC)中饲养的鱼的健康状况通常是通过检查其体外寄生虫来进行的。本研究测定了石斑鱼(Epinephelus fuscogutatus x E. polyhekadia)体表寄生虫的流行情况。这是在南Bangka摄政Pongok岛周围的水域进行的。在2016年11月(I)、2017年2月(II)和2017年5月(III)三个时间段，采用简单随机抽样的方法对鱼类和体外寄生虫进行健康检查。3年期间每月进行水文海洋调查。石斑鱼检查(ⅰ、ⅱ、ⅲ)显示，各时间段外寄生虫的患病率分别为43.3%、8.8%和13.5%。第1期鱼类死亡发生率高，采鱼期1500尾石斑鱼的成活率仅为70%。研究期间的外寄生强度分别为1.6、1.6和1.5。这种情况意味着每10条石斑鱼就有可能受到至少15-16条体外寄生虫的攻击。缓慢的海水流动触发了体外寄生虫从海底迅速上升。FNC厂址2011年和2017年水质均未达标。体外寄生虫主要来源于FNC位置周围环境。因此，养殖管理的重点是清除附着在石斑鱼身上的外寄生虫，清扫网箱，并根据周围环境情况安排特定月份的捕捞模式，以防止外寄生虫的侵袭。
{"title":"Ectoparasite Prevalences of Grouper Fish (Epinephelus fuscogutatus x Epinephelus polyphekadion) Cultured in Floating Net Cages","authors":"S. Adibrata, M. Yusuf, Cristiana Manullang","doi":"10.14710/ik.ijms.25.1.23-30","DOIUrl":"https://doi.org/10.14710/ik.ijms.25.1.23-30","url":null,"abstract":"Monitoring the health of the reared fish in a floating net cage (FNC) is often conducted by examining their ectoparasites. Th is study determine s ectoparasite prevalence s of grouper fish (Epinephelus fuscogutatus x E. polyphekadion ). It was conducted in the waters surrounding Pongok Island, South Bangka Regency. The health examination of both fish and ectoparasites w as carried out by apply ing simple random sampling during three periods, November 2016 (I), February 2017 (II) and May 2017 (III) . H ydro-oceanography surve ys were done every month during th e th ree year s . The grouper checking s (I, II and III) indicated the prevalences of ectoparasites in these periods were 43.3%, 8.8% and 13.5%, respectively. Fish death highly occurred in the period I , and the grouper surviv al rate at harvesting time was only 70% from initial seed stocking of 1 , 500 fish. T he ectoparasite intensit ies during the research periods we re 1.6, 1.6 and 1.5, respectively. This condition implies that every 10 grouper s would potentially be attacked by at least 15-16 ectoparasites. A slow seawater current flow trigger ed the quick uplifting of the ectoparasites from the seafloor. The water condition at the FNC location in 2011 and 201 7 was still under the quality standard. Th e ectoparasites were coming from the surrounding environment of the FNC location . I t is inevitable that the fish culture management should focus on cleansing the ectoparasites attaching on the groupers, dusting the net cage clean, and arranging the harvest pattern on a particular month following the surrounding environmental condition to prevent ectoparasite attacks .","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"34 1","pages":"23-30"},"PeriodicalIF":0.0,"publicationDate":"2020-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84074482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-08DOI: 10.14710/ik.ijms.25.1.7-14
E. Yudiati, R. Rustadi, Fanny Iriany Ginzel, J. R. Hidayati, Mila Safitri Rizfa, N. Azhar, M. S. R. Djarod, Eny Heriyati, R. Alghazeer
Alginate is rich in bioactive compounds and has been known to act as a stimulator on the innate immune system. The objective of this study is to determine polysaccharide and oligosaccharide alginate yield, th at percentage inhibition with a different type of extraction, to evaluate growth performance as well as immune response by oxygen stress tolerance. Thermal heating with oven laboratory at 140 o C for 4.5 hr w as done to breakdown the polysaccharide into oligosaccharide. The extraction was conducted by maceration, filtration, precipitation , and centrifugation. Factorial design with two factors was implemented to 260 Zebrafish and reared in thirteen aquariums (20 fish per aquarium) for 12 days. Zebrafish was fed at different dose (4.0g; 6.0g; 8.0g.kg -1 ) and different type of extraction [noEDTA/noKCl; KCl; EDTA and (EDTA and KCl)]. The evaluation of radical scavenging activity was done spectrophotometrically at 515 nm. Results showed that the highest alginate yield either polysaccharide or oligosaccharide was gained from KCL treatments, percentage inhibition (82.61%), growth performance as well as toleranc e of stress (P<0.05). The best growth performance was reached in oligosaccharide supplement at ion at 6.0g.kg -1 treatment. It can be concluded that alginate oliogosaccharide produced by thermal heating enhanced the antioxidant activity, boost the fish ’s immune system, proofed by better growth performance and more tolerant to the low oxygen stress.
{"title":"Oral Administration of Alginate Oligosaccharide from Padina sp. Enhances Tolerance of Oxygen Exposure Stress in Zebrafish (Danio rerio)","authors":"E. Yudiati, R. Rustadi, Fanny Iriany Ginzel, J. R. Hidayati, Mila Safitri Rizfa, N. Azhar, M. S. R. Djarod, Eny Heriyati, R. Alghazeer","doi":"10.14710/ik.ijms.25.1.7-14","DOIUrl":"https://doi.org/10.14710/ik.ijms.25.1.7-14","url":null,"abstract":"Alginate is rich in bioactive compounds and has been known to act as a stimulator on the innate immune system. The objective of this study is to determine polysaccharide and oligosaccharide alginate yield, th at percentage inhibition with a different type of extraction, to evaluate growth performance as well as immune response by oxygen stress tolerance. Thermal heating with oven laboratory at 140 o C for 4.5 hr w as done to breakdown the polysaccharide into oligosaccharide. The extraction was conducted by maceration, filtration, precipitation , and centrifugation. Factorial design with two factors was implemented to 260 Zebrafish and reared in thirteen aquariums (20 fish per aquarium) for 12 days. Zebrafish was fed at different dose (4.0g; 6.0g; 8.0g.kg -1 ) and different type of extraction [noEDTA/noKCl; KCl; EDTA and (EDTA and KCl)]. The evaluation of radical scavenging activity was done spectrophotometrically at 515 nm. Results showed that the highest alginate yield either polysaccharide or oligosaccharide was gained from KCL treatments, percentage inhibition (82.61%), growth performance as well as toleranc e of stress (P<0.05). The best growth performance was reached in oligosaccharide supplement at ion at 6.0g.kg -1 treatment. It can be concluded that alginate oliogosaccharide produced by thermal heating enhanced the antioxidant activity, boost the fish ’s immune system, proofed by better growth performance and more tolerant to the low oxygen stress.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"27 1","pages":"7-14"},"PeriodicalIF":0.0,"publicationDate":"2020-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77417714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-08DOI: 10.14710/IK.IJMS.25.1.1-6
E. Kurniasih, A. Sembiring, N. P. Pertiwi, A. W. Anggoro, N. K. D. Cahyani, M. Dailami, A. Ambariyanto, D. Wijayanti, C. Meyer
Cryptic organisms that live within the interstices of reef habitats contribute significantly to coral reef biodiversity. One example of this cryptic biodiversity is the high abundance of decapods in dead coral heads that associated with various biota. However, this diversity poorly studied especially species identification and species richness. This study aims to estimate the decapods diversity in Raja Ampat, Papua, using Pocillopora dead coral head method as semi-quantitative sampling approach. Raja Ampat in Papua is chosen because it situated in the center of Coral Triangle marine hotspot. Data were collected from 10 dead coral heads of genus Pocillopora from 10-meter depth near the islands of Kri and Misool. This study observed a total of 205 individuals Decapoda from Kri Island and 672 Individual from Misool Islands. Species richness observation (Chao1 and ACE) of the total samples reports only 11 families of decapoda detected in this study. Rarefaction curve reach an asymptote after all after all ten dead coral were analyzed; indicating that additional sample collection would not change estimates of diversity found in this study. The Shannon-Wiener index diversity on the Kri Island showed lower diversity value (2.09) compared to Misool Island (2.18). In the future, this research can be used as a basis for understanding the diversity of coral reefs as well as for management and conservation of coral reef ecosystems.
{"title":"Cryptic Species from Biodiversity Hotspot: Estimation of Decapoda on Dead Coral Head Pocillopora in Raja Ampat Papua","authors":"E. Kurniasih, A. Sembiring, N. P. Pertiwi, A. W. Anggoro, N. K. D. Cahyani, M. Dailami, A. Ambariyanto, D. Wijayanti, C. Meyer","doi":"10.14710/IK.IJMS.25.1.1-6","DOIUrl":"https://doi.org/10.14710/IK.IJMS.25.1.1-6","url":null,"abstract":"Cryptic organisms that live within the interstices of reef habitats contribute significantly to coral reef biodiversity. One example of this cryptic biodiversity is the high abundance of decapods in dead coral heads that associated with various biota. However, this diversity poorly studied especially species identification and species richness. This study aims to estimate the decapods diversity in Raja Ampat, Papua, using Pocillopora dead coral head method as semi-quantitative sampling approach. Raja Ampat in Papua is chosen because it situated in the center of Coral Triangle marine hotspot. Data were collected from 10 dead coral heads of genus Pocillopora from 10-meter depth near the islands of Kri and Misool. This study observed a total of 205 individuals Decapoda from Kri Island and 672 Individual from Misool Islands. Species richness observation (Chao1 and ACE) of the total samples reports only 11 families of decapoda detected in this study. Rarefaction curve reach an asymptote after all after all ten dead coral were analyzed; indicating that additional sample collection would not change estimates of diversity found in this study. The Shannon-Wiener index diversity on the Kri Island showed lower diversity value (2.09) compared to Misool Island (2.18). In the future, this research can be used as a basis for understanding the diversity of coral reefs as well as for management and conservation of coral reef ecosystems.","PeriodicalId":13381,"journal":{"name":"ILMU KELAUTAN: Indonesian Journal of Marine Sciences","volume":"73 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85821542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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