Pub Date : 2022-08-30DOI: 10.20473/jipk.v14i2.34766
Mahendra Pujiyanto, Zhaza Afililla, L. Maslachah, T. V. Widiyatno, M. Koerniawan, E. Suyono, A. Budiman, U. J. Siregar, L. T. Suwanti
Highlight Research One of the content of microalgae that is beneficial for health is polysaccharides Polysaccharides of Indonesian microalgae can be promoted as anti-malarial Polysaccharides from Glagah, Spirulina and East Java microalgae inhibited the growth of plasmodium in vitro and had IC50 values of 3.18 µg/mL, 5.43µg/mL and 9.87 µg/mL, respectively Abstract Malaria is an infectious disease caused by protozoan parasites of the genus Plasmodium that categorized as deadliest diseases in the world. Artemisinin and its derivatives are still recommended drugs for malaria therapy, however, there have been indications that Plasmodium parasites are resistant to this drug. Therefore, a study on polysaccharides from microalgae may be a potential as bioactive compound for anti-malaria. The aim of this study was to determine the effectiveness of the mixed microalgae polysaccharides as anti-malarial in vitro. Polysaccharides were extracted from three microalgae Spirulina sp., mixed microalgae Glagah and mixed microalgae East Java using the alkaline extraction method. The anti-malarial activity test refers to the concentration of polysaccharides used in calculating the IC50 value by probit analysis. The concentration of polysaccharides of the three microalgae used were 0; 0.01; 0.01, 1, 10 and 100 µg/mL. The results showed that the IC50 values of polysaccharides of Glagah, Spirulina sp. and East Java microalgae were 3.18 µg/mL, 5.43µg/mL, and 9.87 µg/mL, respectively. In Conclusion, polysaccharides of Indonesian mixed microalgae can be promoted as anti-malarial.
{"title":"The Activity of Mixed Microalgae Polysaccharides from Indonesia as Anti-Malaria in Vitro","authors":"Mahendra Pujiyanto, Zhaza Afililla, L. Maslachah, T. V. Widiyatno, M. Koerniawan, E. Suyono, A. Budiman, U. J. Siregar, L. T. Suwanti","doi":"10.20473/jipk.v14i2.34766","DOIUrl":"https://doi.org/10.20473/jipk.v14i2.34766","url":null,"abstract":"Highlight Research\u0000\u0000One of the content of microalgae that is beneficial for health is polysaccharides\u0000Polysaccharides of Indonesian microalgae can be promoted as anti-malarial\u0000Polysaccharides from Glagah, Spirulina and East Java microalgae inhibited the growth of plasmodium in vitro and had IC50 values of 3.18 µg/mL, 5.43µg/mL and 9.87 µg/mL, respectively\u0000\u0000 \u0000Abstract\u0000Malaria is an infectious disease caused by protozoan parasites of the genus Plasmodium that categorized as deadliest diseases in the world. Artemisinin and its derivatives are still recommended drugs for malaria therapy, however, there have been indications that Plasmodium parasites are resistant to this drug. Therefore, a study on polysaccharides from microalgae may be a potential as bioactive compound for anti-malaria. The aim of this study was to determine the effectiveness of the mixed microalgae polysaccharides as anti-malarial in vitro. Polysaccharides were extracted from three microalgae Spirulina sp., mixed microalgae Glagah and mixed microalgae East Java using the alkaline extraction method. The anti-malarial activity test refers to the concentration of polysaccharides used in calculating the IC50 value by probit analysis. The concentration of polysaccharides of the three microalgae used were 0; 0.01; 0.01, 1, 10 and 100 µg/mL. The results showed that the IC50 values of polysaccharides of Glagah, Spirulina sp. and East Java microalgae were 3.18 µg/mL, 5.43µg/mL, and 9.87 µg/mL, respectively. In Conclusion, polysaccharides of Indonesian mixed microalgae can be promoted as anti-malarial.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67614167","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 : 2022-08-30DOI: 10.20473/jipk.v14i2.34629
I. N. Y. Parawangsa, Gede Arya Kusuma Artha, P. A. Tampubolon
Highlight Research Morphoregression and reproduction aspect of bonylip barb was analyzed Fork length more accurately to estimate the body weight Lm50 of bonylip barb in Tamblingan Lake was 116 mmTL Growth pattern is isometric Good reproduction aspect Abstract Bonylip barb (Osteochilus vitattus Valenciennes, 1842) is one of many native fish inhabiting Tamblingan Lake. The information about this species in Tamblingan Lake is rare which requires fulfilment in information gaps for the management of bonylip barb. The aims of this research were to find out the length-length relationship, length-weight relationship, length at first maturity, sex ratio, gonadal maturity stage, gonadosomatic index (GSI), fecundity, as well as spawning period and location in Tamblingan Lake. The fish sample was captured with experimental gillnet that was set in the afternoon and hauled in the next morning. Length and weight of every sample were taken. All samples were dissected to observe the sex and gonad. Fork length was the type of length with higher accuracy to estimate the body weight than the other length character. Growth pattern of this species was isometric. Lm50 of bonylip barb in Tamblingan Lake was 116 mmTL. Sex ratio of bonylip barb was imbalanced (1.00:0.82). Gonad maturity stage I-V was found during the research with GSI between 0.16-15.50 for male fish and 0.43-32.82 for female fish. The highest GSI was found in March, 15.50 for male fish and 32.73 for female fish. Mature fish were discovered in all stations in every month of sampling. The fecundity of bonylip barb ranged between 2,792-279,326 eggs. The length-length and the length-weight showed a strong relationship. The fish was isometric. Based on the growth pattern and the reproductive aspects, the population of bonylip barb in Tamblingan Lake was in good condition.
{"title":"Morphoregression and Reproduction Aspect of Bonylip Barb (Osteochilus vitattus Valenciennes, 1842) in Tamblingan Lake, Bali Island","authors":"I. N. Y. Parawangsa, Gede Arya Kusuma Artha, P. A. Tampubolon","doi":"10.20473/jipk.v14i2.34629","DOIUrl":"https://doi.org/10.20473/jipk.v14i2.34629","url":null,"abstract":"Highlight Research\u0000\u0000Morphoregression and reproduction aspect of bonylip barb was analyzed\u0000Fork length more accurately to estimate the body weight\u0000Lm50 of bonylip barb in Tamblingan Lake was 116 mmTL\u0000Growth pattern is isometric\u0000Good reproduction aspect\u0000\u0000 \u0000Abstract\u0000Bonylip barb (Osteochilus vitattus Valenciennes, 1842) is one of many native fish inhabiting Tamblingan Lake. The information about this species in Tamblingan Lake is rare which requires fulfilment in information gaps for the management of bonylip barb. The aims of this research were to find out the length-length relationship, length-weight relationship, length at first maturity, sex ratio, gonadal maturity stage, gonadosomatic index (GSI), fecundity, as well as spawning period and location in Tamblingan Lake. The fish sample was captured with experimental gillnet that was set in the afternoon and hauled in the next morning. Length and weight of every sample were taken. All samples were dissected to observe the sex and gonad. Fork length was the type of length with higher accuracy to estimate the body weight than the other length character. Growth pattern of this species was isometric. Lm50 of bonylip barb in Tamblingan Lake was 116 mmTL. Sex ratio of bonylip barb was imbalanced (1.00:0.82). Gonad maturity stage I-V was found during the research with GSI between 0.16-15.50 for male fish and 0.43-32.82 for female fish. The highest GSI was found in March, 15.50 for male fish and 32.73 for female fish. Mature fish were discovered in all stations in every month of sampling. The fecundity of bonylip barb ranged between 2,792-279,326 eggs. The length-length and the length-weight showed a strong relationship. The fish was isometric. Based on the growth pattern and the reproductive aspects, the population of bonylip barb in Tamblingan Lake was in good condition.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47885352","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 : 2022-08-30DOI: 10.20473/jipk.v14i2.34682
M. Abdullah, Wei Yien Lua, Roslanzairi Mostapha, Zalina Bashir, Mohd Naimullah, S. Hajisamae, Fazrul Hisam
Highlight Research This is the first stable isotopes study of rays from Malaysian waters Urea extraction significantly enriched the δ15N values (‰) Urea removal is obliged for stable isotope studies on rays Such methodological information is critical for marine research in the region Abstract This is the first reported record of stable isotope values for elasmobranch rays within Malaysian waters, and serves as an important baseline methodological information for future studies investigating stable isotope values in both shark and ray species in the region. This study examined the effects of urea removal on the stable isotopes values of δ13C and δ15N in muscle tissues sampled from several elasmobranch rays species, namely Pastinachus atrus, Rhinoptera javanica, Himantura gerrardi, Himantura uarnak and Aetobatus ocellatus. Individual ray species were collected in July and August of 2018, from the coastal waters of Terengganu State, Malaysia. Urea removal was performed by soaking muscle tissue samples in deionised water for at least 24 hours before being dehydrated. The resulting stable isotope values of these samples were compared to samples that did not undergo the urea removal process. Stable isotope values were individual and species-specific, however, the effect of urea removal was significant for δ15N values but did not significantly affect the δ13C values. We conclude that removing urea from elasmobranch samples before stable isotope analysis is advisable to draw correct conclusions about the animal’s diets.
{"title":"Effects of Urea Removal on the Stable Isotopes δ13C and δ15N in Rays from the Coastal Waters of Peninsular Malaysia","authors":"M. Abdullah, Wei Yien Lua, Roslanzairi Mostapha, Zalina Bashir, Mohd Naimullah, S. Hajisamae, Fazrul Hisam","doi":"10.20473/jipk.v14i2.34682","DOIUrl":"https://doi.org/10.20473/jipk.v14i2.34682","url":null,"abstract":"Highlight Research\u0000\u0000This is the first stable isotopes study of rays from Malaysian waters\u0000Urea extraction significantly enriched the δ15N values (‰)\u0000Urea removal is obliged for stable isotope studies on rays\u0000Such methodological information is critical for marine research in the region\u0000\u0000 \u0000Abstract\u0000This is the first reported record of stable isotope values for elasmobranch rays within Malaysian waters, and serves as an important baseline methodological information for future studies investigating stable isotope values in both shark and ray species in the region. This study examined the effects of urea removal on the stable isotopes values of δ13C and δ15N in muscle tissues sampled from several elasmobranch rays species, namely Pastinachus atrus, Rhinoptera javanica, Himantura gerrardi, Himantura uarnak and Aetobatus ocellatus. Individual ray species were collected in July and August of 2018, from the coastal waters of Terengganu State, Malaysia. Urea removal was performed by soaking muscle tissue samples in deionised water for at least 24 hours before being dehydrated. The resulting stable isotope values of these samples were compared to samples that did not undergo the urea removal process. Stable isotope values were individual and species-specific, however, the effect of urea removal was significant for δ15N values but did not significantly affect the δ13C values. We conclude that removing urea from elasmobranch samples before stable isotope analysis is advisable to draw correct conclusions about the animal’s diets.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41708005","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 : 2022-08-30DOI: 10.20473/jipk.v14i2.32459
S. C. Febriansyah, L. Hakim, C. Retnaningdyah
Highlight Research Anthropogenic factors are the main cause of damage to mangrove ecosystems Restoration is a method for ecosystem restoration Restoration success is seen from the physical, chemical, and biological parameters Phytoplankton is a bioindicator of water quality The abundance of mangroves can explain the state of an ecosystem Abstract Mangrove ecosystems in Sine and Pancer Cengkrong had degraded due to land-use change and restoration has been carried out over a few year on the damaged location. This study was conducted to evaluate water quality of mangrove ecosystems at both locations based on physical, chemical and phytoplankton parameters as bioindicators. The evaluation of Cengkrong Mangrove was carried out at 4 different locations based on different periode of restoration, namely restoration of 2008-2009, 2013-2014, natural mangroves, and 2005 succession mangroves, whereas there was only one sampling site at Sine mangrove namely 1998-2008 restoration. The physico-chemical parameters measured include water temperature, air temperature, conductivity, pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), salinity, nitrate, and orthophosphate. Phytoplankton data was used to measure, trophic diatom index (TDI) as an indicator of water nutrition status, and pollution tolerant value (%PTV) as an indicator of organic pollution. The results showed that the water quality at all the study locations met the Indonesian Ministry of Environment Regulation No 51/2004, except nitrate and phosphate. Based on the TDI index, mangrove in Sine, Cengkrong 2013-2014 restoration, and 2005 succession mangroves were categorized as hyper-eutrophic, natural Cengkrong mangroves were categorized as eutrophic, and 2008-2009 restored Cengkrong mangroves were categorized as meso-eutrophic. Based on the %PTV index, in the Sine mangrove, 2013-2014 Cengkrong restoration, and 2005 succession mangroves were classified as high levels of organic matter pollution, while in the Cengkrong 2008-2009 restoration and natural Cengkrong were classified as a moderate level of organic pollution.
{"title":"Evaluation of Mangrove Water Quality in Pancer Cengkrong, Trenggalek and Sine, Tulungagung, East Java, Indonesia Using Phytoplankton as Bioindicators","authors":"S. C. Febriansyah, L. Hakim, C. Retnaningdyah","doi":"10.20473/jipk.v14i2.32459","DOIUrl":"https://doi.org/10.20473/jipk.v14i2.32459","url":null,"abstract":"Highlight Research\u0000\u0000Anthropogenic factors are the main cause of damage to mangrove ecosystems\u0000Restoration is a method for ecosystem restoration\u0000Restoration success is seen from the physical, chemical, and biological parameters\u0000Phytoplankton is a bioindicator of water quality\u0000The abundance of mangroves can explain the state of an ecosystem\u0000\u0000 \u0000Abstract\u0000Mangrove ecosystems in Sine and Pancer Cengkrong had degraded due to land-use change and restoration has been carried out over a few year on the damaged location. This study was conducted to evaluate water quality of mangrove ecosystems at both locations based on physical, chemical and phytoplankton parameters as bioindicators. The evaluation of Cengkrong Mangrove was carried out at 4 different locations based on different periode of restoration, namely restoration of 2008-2009, 2013-2014, natural mangroves, and 2005 succession mangroves, whereas there was only one sampling site at Sine mangrove namely 1998-2008 restoration. The physico-chemical parameters measured include water temperature, air temperature, conductivity, pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), salinity, nitrate, and orthophosphate. Phytoplankton data was used to measure, trophic diatom index (TDI) as an indicator of water nutrition status, and pollution tolerant value (%PTV) as an indicator of organic pollution. The results showed that the water quality at all the study locations met the Indonesian Ministry of Environment Regulation No 51/2004, except nitrate and phosphate. Based on the TDI index, mangrove in Sine, Cengkrong 2013-2014 restoration, and 2005 succession mangroves were categorized as hyper-eutrophic, natural Cengkrong mangroves were categorized as eutrophic, and 2008-2009 restored Cengkrong mangroves were categorized as meso-eutrophic. Based on the %PTV index, in the Sine mangrove, 2013-2014 Cengkrong restoration, and 2005 succession mangroves were classified as high levels of organic matter pollution, while in the Cengkrong 2008-2009 restoration and natural Cengkrong were classified as a moderate level of organic pollution.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48361994","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 : 2022-08-30DOI: 10.20473/jipk.v14i2.32531
Dwi Rosalina, D. Sofarini, F. F. Muhsoni, M. Munir, R. I. Khasanah
Highlight Research 1. Metallothionein is a protein found in seagrass and functions to bind to heavy metals so as not to damage the seagrass body tissue Abstract Lead is a very dangerous heavy metal for organisms because it is carcinogenic, can cause mutations, takes a long time to decompose and has unchanging toxicity. This study on the seagrass Cymodocea serrulata aimed to determine the metallothionein expression quantitatively using the Elisa (Enzyme-Linked Immunosorbent Assay) method and describe the surface structure of C. serrulata roots, rhizomes, and leaves that were exposed to lead using SEM and EDX Mapping methods. The results showed that metallothionein was abundant in C. serrulata tissues (leaves>roots>rhizomes) in both South Bangka and Ketawai Island. SEM showed changes in the morphology and cell size of C. serrulata exposed to lead. EDX and Mapping showed the substance elements found in seagrass tissue. Pb was detected in C. serrulata roots (0.22%) and leaves (0.6%) in South Bangka. This indicates that the seagrass plants are able to absorb heavy metals into their body tissues.
{"title":"Metallothionein (MT) Expression and SEM-EDX Mapping on Cymodocea serrulata Seagrass","authors":"Dwi Rosalina, D. Sofarini, F. F. Muhsoni, M. Munir, R. I. Khasanah","doi":"10.20473/jipk.v14i2.32531","DOIUrl":"https://doi.org/10.20473/jipk.v14i2.32531","url":null,"abstract":"Highlight Research\u00001. Metallothionein is a protein found in seagrass and functions to bind to heavy metals so as not to damage the seagrass body tissue\u0000 \u0000Abstract\u0000Lead is a very dangerous heavy metal for organisms because it is carcinogenic, can cause mutations, takes a long time to decompose and has unchanging toxicity. This study on the seagrass Cymodocea serrulata aimed to determine the metallothionein expression quantitatively using the Elisa (Enzyme-Linked Immunosorbent Assay) method and describe the surface structure of C. serrulata roots, rhizomes, and leaves that were exposed to lead using SEM and EDX Mapping methods. The results showed that metallothionein was abundant in C. serrulata tissues (leaves>roots>rhizomes) in both South Bangka and Ketawai Island. SEM showed changes in the morphology and cell size of C. serrulata exposed to lead. EDX and Mapping showed the substance elements found in seagrass tissue. Pb was detected in C. serrulata roots (0.22%) and leaves (0.6%) in South Bangka. This indicates that the seagrass plants are able to absorb heavy metals into their body tissues.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44078794","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}
L. Mile, H. Nursyam, D. Setijawati, T. D. Sulistiyati
Abstract Edible films made from chitosan and starch materials have several physical limitations, particularly in terms of tensile strength and elongation. To address these limitations, glycerol and sorbitol are often added as plasticizers during the production process. Chitosan has also been reported to have plasticizing properties and can serve as an alternative through its modification into nano-sized particles, thereby increasing its reactivity. Therefore, this study aimed to characterize the physical properties of edible films made from black mangrove (Rhizophora mucronata) fruit starch and chitosan by adding nano chitosan suspension at different storage temperatures to determine the best treatment. A completely randomized factorial design was used, and the data obtained were analyzed using Analysis of Variance (ANOVA) at a 95% confidence level with IBM SPSS statistics 25. The treatments used included the addition of nano chitosan suspension (A) at various concentrations of 0%, 25%, 50%, and 75% with storage (B) for 0 days, 9 days at room temperature, and 9 days at cold storage (± 50C) in triplicates. The significant treatments were then further tested using Honestly Significant Difference (sig < 0.05). The results showed that the addition of nano chitosan suspension with storage method affected the physical properties of the edible films. Based on the De Garmo analysis, the best treatment was A1B0 with an IE of 0.71, followed by A3B1 and A3B2 with 0.48 and 0.49, respectively.
{"title":"Effect of Nano Chitosan Concentration and Storage Temperature on the Physical Characteristics of Edible Films of Black Mangrove Starch-Chitosan","authors":"L. Mile, H. Nursyam, D. Setijawati, T. D. Sulistiyati","doi":"10.20473/jipk.vi.44434","DOIUrl":"https://doi.org/10.20473/jipk.vi.44434","url":null,"abstract":"Abstract\u0000Edible films made from chitosan and starch materials have several physical limitations, particularly in terms of tensile strength and elongation. To address these limitations, glycerol and sorbitol are often added as plasticizers during the production process. Chitosan has also been reported to have plasticizing properties and can serve as an alternative through its modification into nano-sized particles, thereby increasing its reactivity. Therefore, this study aimed to characterize the physical properties of edible films made from black mangrove (Rhizophora mucronata) fruit starch and chitosan by adding nano chitosan suspension at different storage temperatures to determine the best treatment. A completely randomized factorial design was used, and the data obtained were analyzed using Analysis of Variance (ANOVA) at a 95% confidence level with IBM SPSS statistics 25. The treatments used included the addition of nano chitosan suspension (A) at various concentrations of 0%, 25%, 50%, and 75% with storage (B) for 0 days, 9 days at room temperature, and 9 days at cold storage (± 50C) in triplicates. The significant treatments were then further tested using Honestly Significant Difference (sig < 0.05). The results showed that the addition of nano chitosan suspension with storage method affected the physical properties of the edible films. Based on the De Garmo analysis, the best treatment was A1B0 with an IE of 0.71, followed by A3B1 and A3B2 with 0.48 and 0.49, respectively. ","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43220425","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 : 2022-02-27DOI: 10.20473/jipk.v14i1.30243
K. Hristov
Highlight ResearchLong-term maintenance of Filopaludina martensi martensi in artificial conditions (local tap-water and food).Observation of breeding behaviour of F. m. martensi.Observation of birth and development of the juveniles. AbstractFilopaludina martensi martensi Frauenfeld 1865 is an aquatic Viviparidae gastropod found in Thailand, and throughout Southeast Asia. It is popular in the local cousin, a vector of food-borne trematode infections, and used as a bio-indicator of heavy metal contamination, bio-control agent against Bithynia siamensis Lea 1856, and a way to reduce the total organic matter content from faeces and feed residue during Clarias sp. catfish and Nile tilapia aquaculture. The study aims to establish a protocol for breeding F. m. martensi snails in artificial conditions. The snails were maintained in laboratory conditions. The animals gave birth (3 - 4 juveniles) every month. Inflatable, for several hours after the birth, transparent lightly bluish (5 - 6 mm in diameter) spheres are released in which the fully mature juvenile moves, and leaves several hours later after the sphere breaks. All juveniles studied here die after 2 - 3 months failing to grow into a reproductive adults. F. m. martensi is an attractive animal that regardless of the current difficulties to maintain and grow its juveniles may be popularised in the ornamental fish trade, and a possible laboratory model animal.
{"title":"A Note on Filopaludina martensi martensi (Frauenfeld, 1865) Artificial Breeding Conditions","authors":"K. Hristov","doi":"10.20473/jipk.v14i1.30243","DOIUrl":"https://doi.org/10.20473/jipk.v14i1.30243","url":null,"abstract":"Highlight ResearchLong-term maintenance of Filopaludina martensi martensi in artificial conditions (local tap-water and food).Observation of breeding behaviour of F. m. martensi.Observation of birth and development of the juveniles. AbstractFilopaludina martensi martensi Frauenfeld 1865 is an aquatic Viviparidae gastropod found in Thailand, and throughout Southeast Asia. It is popular in the local cousin, a vector of food-borne trematode infections, and used as a bio-indicator of heavy metal contamination, bio-control agent against Bithynia siamensis Lea 1856, and a way to reduce the total organic matter content from faeces and feed residue during Clarias sp. catfish and Nile tilapia aquaculture. The study aims to establish a protocol for breeding F. m. martensi snails in artificial conditions. The snails were maintained in laboratory conditions. The animals gave birth (3 - 4 juveniles) every month. Inflatable, for several hours after the birth, transparent lightly bluish (5 - 6 mm in diameter) spheres are released in which the fully mature juvenile moves, and leaves several hours later after the sphere breaks. All juveniles studied here die after 2 - 3 months failing to grow into a reproductive adults. F. m. martensi is an attractive animal that regardless of the current difficulties to maintain and grow its juveniles may be popularised in the ornamental fish trade, and a possible laboratory model animal.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44701684","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 : 2022-02-27DOI: 10.20473/jipk.v14i1.32553
S. Sriwati, A. Bambang, J. Hutabarat, Haeruddin Daeng Mile, T. Agustini
Highlight ResearchThe rainfall intensity can affect the phenomenon of salt farmers, so farmers must have adaptation strategiesSalt Business Group (SBG) is a group of people who have saltworks activities with a minimum number of administratorsThe profit sharing system between the owners and the farmers (called pemadak) is an important factor affecting the income of salt farmersThe function of the kite diagram is to position the value of the sustainability status from the ecological, technological, economic, social and institutional (etesi) aspectsAbstractSaltworks integration is one of the government's efforts as a breakthrough in saltworks technology innovation. Saltworks integration in Pati Regency has been conducted for 4 (four) years starting from 2017 to 2020. The aim of this research was to analyze the sustainability of saltworks integration in terms of ecological, technological, economic, social, and institutional (ETESI) aspects. The research was conducted for 9 (nine) months from March to November 2020. The research locations for saltworks integration were in Raci Village - Batangan Subdistrict, Genengmulyo Village - Juwana Subdistrict, Tluwuk Village - Wedarijaksa Subdistrict, and Kertomulyo Village - Trangkil Subdistrict. Sustainability analysis was performed using Rapfish method. Through the R software, the anchor was created automatically so that users only need to input data through Microsoft Excel, then the Rapfish analysis was carried out automatically by the R software. The results of the sustainability index analysis of saltworks integration in the ecological aspects of Raci Village, Batangan Subdistrict showed a sustainable index value. Genengmulyo Village - Juwana Subdistrict, Tluwuk Village - Wedarijaksa Subdistrict, and Kertomulyo Village - Trangkil Subdistrict had an opportunity of attaining sufficiently sustainable status by considering indicators that affect its sustainability. Technological, economic, social and institutional aspects in all villages, where saltworks integration was located, showed a sufficiently sustainable status.
{"title":"The Sustainability of Saltworks Integration in Pati Regency, Central Java","authors":"S. Sriwati, A. Bambang, J. Hutabarat, Haeruddin Daeng Mile, T. Agustini","doi":"10.20473/jipk.v14i1.32553","DOIUrl":"https://doi.org/10.20473/jipk.v14i1.32553","url":null,"abstract":"Highlight ResearchThe rainfall intensity can affect the phenomenon of salt farmers, so farmers must have adaptation strategiesSalt Business Group (SBG) is a group of people who have saltworks activities with a minimum number of administratorsThe profit sharing system between the owners and the farmers (called pemadak) is an important factor affecting the income of salt farmersThe function of the kite diagram is to position the value of the sustainability status from the ecological, technological, economic, social and institutional (etesi) aspectsAbstractSaltworks integration is one of the government's efforts as a breakthrough in saltworks technology innovation. Saltworks integration in Pati Regency has been conducted for 4 (four) years starting from 2017 to 2020. The aim of this research was to analyze the sustainability of saltworks integration in terms of ecological, technological, economic, social, and institutional (ETESI) aspects. The research was conducted for 9 (nine) months from March to November 2020. The research locations for saltworks integration were in Raci Village - Batangan Subdistrict, Genengmulyo Village - Juwana Subdistrict, Tluwuk Village - Wedarijaksa Subdistrict, and Kertomulyo Village - Trangkil Subdistrict. Sustainability analysis was performed using Rapfish method. Through the R software, the anchor was created automatically so that users only need to input data through Microsoft Excel, then the Rapfish analysis was carried out automatically by the R software. The results of the sustainability index analysis of saltworks integration in the ecological aspects of Raci Village, Batangan Subdistrict showed a sustainable index value. Genengmulyo Village - Juwana Subdistrict, Tluwuk Village - Wedarijaksa Subdistrict, and Kertomulyo Village - Trangkil Subdistrict had an opportunity of attaining sufficiently sustainable status by considering indicators that affect its sustainability. Technological, economic, social and institutional aspects in all villages, where saltworks integration was located, showed a sufficiently sustainable status.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43933995","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 : 2022-02-27DOI: 10.20473/jipk.v14i1.30688
L. I. Harlyan, Shobriyyah Afifah Nabilah, D. Setyohadi, Muhammad Arif Rahman, S. Pattarapongpan
Highlight ResearchThe feedback harvest control rule resulted in the lowest allowable biological catch estimation than the surplus production models. The feedback harvest control rule adapted the recent years of historical catch data.The surplus production models might result in over or under catch estimation, not considering the recent data.This multispecies fishery could not provide species specific data as surplus production models required; therefore, it might be better to use the feedback harvest control rule that has been validated for multispecies fisheries. AbstractScads fishery in Blitar waters is a multispecies fishery applying harvest control rules (HCRs) from conventional single-species approaches which technically, may not be applicable to employ in such mixed-species data composed from the multispecies fishery. The feedback HCR is an alternative validated harvest control rule that can be applied for a multispecies fishery. The aim of this study was to technically compare the application of the feedback HCR and conventional single species approaches in terms of estimating the future allowable biological catch (ABC). Therefore, in this study, ABC was estimated by applying three HCRs, the feedback HCR, and two conventional HCRs which was based on single-species approaches applying surplus production models, Schaefer Model and Fox model into catch and effort of scads fisheries data series of 2011 – 2020. The results showed that the ABC estimation of the feedback HCR was a half lower than that of both conventional models. It was biologically safer to apply the feedback HCR to set the annual total allowable catch (TAC) than the other two HCRs. The feedback HCR presented an initial step toward sustainably managing multispecies fisheries while dealing with data-limited conditions.
{"title":"Harvest Control Rules of Multispecies Scads (Decapterus spp.) Fishery in Blitar Waters, East Java","authors":"L. I. Harlyan, Shobriyyah Afifah Nabilah, D. Setyohadi, Muhammad Arif Rahman, S. Pattarapongpan","doi":"10.20473/jipk.v14i1.30688","DOIUrl":"https://doi.org/10.20473/jipk.v14i1.30688","url":null,"abstract":"Highlight ResearchThe feedback harvest control rule resulted in the lowest allowable biological catch estimation than the surplus production models. The feedback harvest control rule adapted the recent years of historical catch data.The surplus production models might result in over or under catch estimation, not considering the recent data.This multispecies fishery could not provide species specific data as surplus production models required; therefore, it might be better to use the feedback harvest control rule that has been validated for multispecies fisheries. AbstractScads fishery in Blitar waters is a multispecies fishery applying harvest control rules (HCRs) from conventional single-species approaches which technically, may not be applicable to employ in such mixed-species data composed from the multispecies fishery. The feedback HCR is an alternative validated harvest control rule that can be applied for a multispecies fishery. The aim of this study was to technically compare the application of the feedback HCR and conventional single species approaches in terms of estimating the future allowable biological catch (ABC). Therefore, in this study, ABC was estimated by applying three HCRs, the feedback HCR, and two conventional HCRs which was based on single-species approaches applying surplus production models, Schaefer Model and Fox model into catch and effort of scads fisheries data series of 2011 – 2020. The results showed that the ABC estimation of the feedback HCR was a half lower than that of both conventional models. It was biologically safer to apply the feedback HCR to set the annual total allowable catch (TAC) than the other two HCRs. The feedback HCR presented an initial step toward sustainably managing multispecies fisheries while dealing with data-limited conditions.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44368138","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 : 2022-02-27DOI: 10.20473/jipk.v14i1.31087
M. I. Zakariah, H. Daud, Mhd Ikhwanuddin Abdullah, W. Wahab, Farizan Abdullah, Nor Asma Husna Mohammed Yusoff, Ahmad Shuhaimi Draman, Marina Hassan
Highlight ResearchThis is the first report of the occurrence of gregarine species in Peninsular Malaysia.The information of these findings will lead to the identification of species using genetic analysis.This information can help to solve the cultured problem of the Macrobrachium rosenbergii industry worldwide. AbstarctStudies on the parasite of prawn are likely to be important due to the commercial value of the prawn. Investigation study about gregarine parasites of M. rosenbergii in Malaysia is still lacking. Objective of this study is to determine the occurrence of gregarine parasites in shrimp, M. rosenbergii from Setiu Lagoon, Terengganu. The study was done specifically to observe the prevalence and the mean intensity of the parasites which include the morphological prevalence and parasitological study. Prevalence of the parasites in this study is 42.4% with 95% Cumulative Index (CI) 25.6% to 59.3% and value of Odd Ratio (OR) is 0.74 (CI = 0.29 to 1.88). Two structures of the gregarine which is gamont and syzygy found in this study are closely related to morphology characteristic of gregarine in the previous report.
{"title":"New Report on The Occurrence of Gregarine Parasites in Wild Species of Macrobrachium rosenbergii from Setiu Lagoon, Terengganu, Malaysia","authors":"M. I. Zakariah, H. Daud, Mhd Ikhwanuddin Abdullah, W. Wahab, Farizan Abdullah, Nor Asma Husna Mohammed Yusoff, Ahmad Shuhaimi Draman, Marina Hassan","doi":"10.20473/jipk.v14i1.31087","DOIUrl":"https://doi.org/10.20473/jipk.v14i1.31087","url":null,"abstract":"Highlight ResearchThis is the first report of the occurrence of gregarine species in Peninsular Malaysia.The information of these findings will lead to the identification of species using genetic analysis.This information can help to solve the cultured problem of the Macrobrachium rosenbergii industry worldwide. AbstarctStudies on the parasite of prawn are likely to be important due to the commercial value of the prawn. Investigation study about gregarine parasites of M. rosenbergii in Malaysia is still lacking. Objective of this study is to determine the occurrence of gregarine parasites in shrimp, M. rosenbergii from Setiu Lagoon, Terengganu. The study was done specifically to observe the prevalence and the mean intensity of the parasites which include the morphological prevalence and parasitological study. Prevalence of the parasites in this study is 42.4% with 95% Cumulative Index (CI) 25.6% to 59.3% and value of Odd Ratio (OR) is 0.74 (CI = 0.29 to 1.88). Two structures of the gregarine which is gamont and syzygy found in this study are closely related to morphology characteristic of gregarine in the previous report.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49091526","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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