Jurnal Ilmiah Perikanan dan Kelautan最新文献

{"title":"Effect of Cooking Methods on Nutritional Quality of Sea Lettuce (Ulva lactuca) Flakes","authors":"A. Sefrienda, Jasmadi Jasmadi, Hilda Novianty, I. T. Suryaningtyas, R. Wikandari","doi":"10.20473/jipk.v15i1.36078","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.36078","url":null,"abstract":"Highlight Research\u0000\u0000Proximate of Ulva lactuca after cooking treatments were analyzed. The cooking treatments carried out in this study were roasted and boiled-roasted\u0000Protein quality such as in-vitro digestibility, protein solubility, and amino acids composition of Ulva lactuca after cooking treatments were analyzed\u0000The result showed that boiled-roasted samples had the highest protein content, amino acid score and essential acid index, and predicted-protein efficiency ratio\u0000\u0000 \u0000Abstract\u0000Plant-based protein has been increasingly demanded as a sustainable protein source. Sea lettuce (Ulva lactuca) is one of the potential sources as plant protein due to its high protein content. During processing, the sea lettuce is exposed to heat which might affect its nutrition, particularly the protein quality. This study aimed to evaluate two different cooking processes on the nutritional quality of the sea lettuce based on the proximate and protein quality analyses. The samples were raw, roasted, and boiled-roasted sea lettuce. All treatment using temperature 100°C. The protein quality was assessed by in-vitro protein digestibility, solubility, and amino acid profiles. The result showed that boiling treatment followed by roasting treatment had significantly higher protein content, amino acid score and essential amino acid index, and predicted-protein efficiency ratio compared with the value of roasting treatment only. It resulted in protein content of 18.87% (dry basis), amino acid score of 37.96%, essential amino acid index of 79.41% and predicted-protein efficiency ratio of 2.58. Therefore, boiling followed with roasting process is recommended to maintain the nutrition quality of sea lettuce.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48455288","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}

{"title":"Phytochemical Screening and Toxicity Test of Various Extracts from Microalgae Dunaliella salina","authors":"Yosi Yananda Sijabat, Wilis Ari Setyati, Retno Hartati","doi":"10.20473/jipk.v15i1.36282","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.36282","url":null,"abstract":"Highlight Research\u0000\u0000Extract N-hexane of salina contains alkaloids, steroids, triterpenoids, and phenols\u0000Extract Ethyl Acetate of salina contains alkaloids, steroids, triterpenoids, phenols, flavonoid, and saponins\u0000Extract Methanol of salina contains alkaloids, steroids, triterpenoids, phenols, flavonoid, and saponins\u000024- hours LC50 value of the n-hexane extract salina was 276 ppm, the ethyl acetate extract was 673 ppm and the methanol extract was 811 ppm. All of the three extracts were included in toxic category\u0000\u0000 \u0000Abstract\u0000Microalgae are single celled microorganisms as the primary producers in the water food cycle. Microalgae bioactive compounds was estimated to be 10 times more diverse than compounds produced by land plants. Microalgae use nutrients more efficiently to grow, metabolize, and produce chemical compounds. Dunaliella salina is a type of chlorophyte microalgae with a lot of potential to be used in various fields. This study aimed to determine the phytochemical compound content and the value of lethal toxicity (24-hour LC50) in microalgae D. salina extract with different solvents. The multistage maceration method uses n-hexane, ethyl acetate, and methanol to extract samples. Phytochemical screening uses reagents according to the content of secondary metabolites. The Brine Shrimp Lethality Test method is used to test toxicity. The extracts were tested by using 10 Artemia salina against five concentrations, namely 0, 1, 10, 100, and 1000 ppm. Toxicity data were processed through probit analysis to get the 24-hour LC50 value. The results showed that alkaloids, steroids, triterpenoids, and phenols were found in the methanol, ethyl acetate, and n-hexane extracts. Saponin were found in the methanolic extracts. Flavonoid were found in the methanol and ethyl acetate extracts. The 24-hour LC50 value of the n-hexane extract was 276 ppm, the methanol extract was 811 ppm, and ethyl acetate extract was 673 ppm. The three extracts were included in toxic category. Extracts of microalgae D. salina have plenty secondary metabolite, that can be used in various fields and holds the potential as an anticancer.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42725079","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}

{"title":"Epipsammic Diatom Cocconesis sp. as New Bioeroder in Scleractinian Coral","authors":"O. M. Luthfi, Adhimas Haryo Priyambodo, Muliawati Handayani, Y. Risjani, A. Witkowski","doi":"10.20473/jipk.v15i1.37653","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.37653","url":null,"abstract":"Highlight Research\u0000\u0000The endolithic bioeroders were identified.\u0000Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral.\u0000SEM revealed Cocconeis sp. etch and bore of coral skeleton.\u0000Pennate diatom was present on coral cavities.\u0000\u0000 \u0000Abstract\u0000Laminar coral, Montipora, contributes to the coral reef ecosystem. The laminar life form is usually used by juvenile reef biota to shelter and prey. In an intertidal area, such as Pantai Kondang Merak, these corals are susceptible to erosion caused by mechanical and biological forces. Strong current or other anthropogenic activity may break coral colonies into pieces. Also, some grazers from reef fish and bioeroder potentially weaken coral structures. This study aimed to find the effect of biological agents from Bacillariophyceae, such as Cocconeis diatom, on the bioerosion process in laminar coral, e.g., Montipora. Ten montiporid corals from Pantai Kondang Merak were observed to find bio-eroding activities. Each coral colony was divided into 12 parts and photographed to record signs of bio-erosion on coral surface. While observing microborers, a 2x2 cm of the coral surface was observed using Scanning Electron Microscopy (SEM). SEM revealed that a frustule of Cocconeis sp. was found inside aragonite laminar coral from Pantai Kondang Merak. Cocconeis naturally grows on the coasts of tropical oceans as benthic organisms. They are reported as living attached to many substrates’ surfaces and within the substrate as euendolith. This study revealed that Cocconeis sp. lived inside the coral skeleton as micro bioeroder by attaching their valve in coral aragonite. Further work needs more observations of another potential euendolith diatom living inside the coral and to build new information on their mechanism of bio-eroding process in more detail.  ","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46889504","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}

{"title":"Sodium Alginate from Padina australis Modulates Innate Immune and Immune Gene Expression in Red Tilapia (Oreochromis sp.)","authors":"T. Kuswoyo, A. Isnansetyo, Muwantoko Murwantoko, A. Husni, I. Istiqomah","doi":"10.20473/jipk.v15i1.40943","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.40943","url":null,"abstract":"Highlight Research\u0000\u0000Development of immunostimulant from natural sources is a promising approach to improve the immune status of fish\u0000Dietary administration of sodium alginate from Padina australis at 2.0 g/kg was an effective immunostimulant for red tilapia\u0000Red tilapia fed diet with sodium alginate significantly increased innate immune responses of TLC, PA, respiratory burst, SOD, TPP, lysozyme, and ACH50 activity\u0000Red tilapia fed diet with sodium alginate significantly modulated immune genes expression of GPx, TNF-α, IFN-γ, IL-10, TGF-β1, and Hepcidin\u0000 \u0000\u0000Abstract\u0000The study of immunostimulant derived from natural sources has received considerable attention in recent years. Indonesian coasts have various sources of immunostimulant, especially brown algae, which are rich in alginate. This research investigated innate immune response and immune genes in red tilapia (Oreochromis sp.) after being fed diets supplemented with sodium alginates (SA) from a brown alga, Padina australis, originating from Awur Bay, Jepara, Indonesia. This work provided comprehensive information regarding the interaction of cellular-humoral immunity and immune gene expression. Red tilapia was fed with SA-containing diet at doses of 0, 2, 3 and 4 g/kg for 12 days, then blood samples were collected on days 0, 3, 6, 9, and 12 to evaluate the total leucocyte count (TLC), phagocytic activity/index (PA/PI), respiratory burst, superoxide dismutase (SOD), lysozyme, alternative complement (ACH50) activity, total plasma protein (TPP), and immune genes expression (blood sample on day 6). The immunological parameters improved in response to the administered doses and period. Dietary SA enhanced total leucocyte count, phagocytic activity, respiratory burst, superoxide dismutase, lysozyme, and ACH50 activity, whereas the phagocytic index and total plasma protein were not significantly different. Furthermore, the mRNA levels of antioxidant-related gene (GPx), pro-inflammatory cytokines (TNF-α and IFN-γ, except for IL-1β), and antimicrobial peptides (Hepcidin) were upregulated. Meanwhile, anti-inflammatory cytokines (IL-10 and TGF-β1) were downregulated. Supplementation SA diet at 2.0 g/kg as the lowest dose revealed the most effective effects on innate immune and immune genes expression. Dietary SA was a potential immunostimulant in red tilapia aquaculture.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44284216","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}

{"title":"Immersion Effect of Estradiol-17β on Cannibalism of Asian Redtail Catfish (Hemibagrus nemurus) Post Larvae","authors":"B. Heltonika, A. Sudrajat, Muhammad Junior Zairin, W. Widanarni, M. Suprayudi, W. Manalu, Y. Hadiroseyani","doi":"10.20473/jipk.v15i1.38173","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.38173","url":null,"abstract":"Highlight Research\u0000\u0000The dose, duration of immersion, and time interval of immersion of the estradiol-17β affect the rate of cannibalism and increase the seed survival of Asian redtail catfish in low treatment in this research.\u0000Over optimum treatment increased the incidence of cannibalism at Asian redtail catfish and decrease growth performance.\u0000Treatment of estradiol-17β, give the ability of Asian redtail catfish to live on high density\u0000The treatment of estradiol-17β, has an effect on concentration plasma of body testosterone and cortisol\u0000\u0000 \u0000Abstract\u0000The cannibalistic behavior of Asian redtail catfish greatly hampers the supply of these fish seeds, invoking the need to be controlled. Estradiol is one of the hormones that has been known to reduce cannibalistic behavior on fish. This study aimed to evaluate the effect of estradiol-17β immersion on the incidence of cannibalism in the rearing of post larvae of Asian redtail catfish. Post larvae was treated with a combination of doses of estradiol hormone 0, 1, and 2 ppm and immersion time of two and four hours with immersion intervals of three and six days with a completely randomized design. Each treatment had a fish density of 10 fish L-1, with mean size individual length of 6.73 ± 0.73 mm (three days of age after hatched), with four replications. Fish were fed with tubifex up until satiation point and reared for 30 days. The results showed that the administration of the estradiol-17β through immersion with a dose of 1 ppm for two hours and interval of six days was able to reduce the level of cannibalism and increase the survivability. A further increase in dose, immersion time, and interval had the opposite effect. Estradiol-17β immersion with certain dose, duration, and interval affected the rate of cannibalism, growth rate, and survival. Estradiol-17β immersion at a dose of 1 ppm for two hours and six days interval was the best to reduce the level of cannibalism and normal mortality in post larvae of Asian redtail catfish.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45616787","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}

{"title":"Seagrass (Enhalus acoroides) Restoration Performance with Two Different Methods (Anchor and Seed) in Panjang Island, Jepara, Indonesia","authors":"Jan Ericson Wismar, Ambariyanto, Widianingsih","doi":"10.20473/jipk.v15i1.35836","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.35836","url":null,"abstract":"Highlight Research\u0000\u0000Seeds can grow into seagrass seedlings for an optimal period of five weeks\u0000Seed sowing can be optimized by supplementing nutrients with fertilizers\u0000The seedling transplant method, which utilizes seed seedlings, is not significantly different in daily growth from the anchor transplant method, which utilizes donors/seeds transport\u0000The biomass content of seagrass leaves can be used to determine the growth rate of the leaves\u0000\u0000Abstract\u0000Globally, the area of seagrass beds important to the ecosystems in coastal environment is decreasing due to environmental pressures, both natural and artificial. Transplantation is one way to restore the condition of damaged seagrass beds, the anchor transplant method uses the transfer of donor seagrass to the transplant area, while the seed transplant method uses seed sowed from seagrass. This study aimed to investigate the survival and growth rates of seagrass transplants and the biomass and chlorophyll content of transplanted Enhalus acoroides in the waters of Panjang Island Jepara utilizing anchor and seedling methods. The research was conducted in the waters around Panjang Island, Jepara, between September and December 2021. The results indicated that transplantation of seagrass E. acoroides using the anchor method resulted in the highest average growth rate of 0.25 cm/day and a survival rate of 96.67%, while transplantation using the seedling method resulted in a growth rate of 0.18 cm/day and a survival rate of 83.33%. The results showed that the anchor method scored better than the seedling transplantation method in terms of growth rate and survival rate. However, seedling is a feasible method to meet the availability of seeds that will later be transplanted, considering that the anchor method still has shortcomings in terms of the availability of seeds and the use of pegs which are still not environmentally friendly. so that the seedling method can be recommended for the restoration process of seagrass ecosystems by taking into account the season, weather and other important indices.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47508505","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}

{"title":"The Current Condition of Coral Reef and Fish Diversity in Gosong Island, Southwest Aceh","authors":"N. Najmi, Ananingtyas S. Darmarini, Nanda Muhammad Razi, Mai Suriani, Samsul Kahar","doi":"10.20473/jipk.v15i1.35917","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.35917","url":null,"abstract":"Highlight Research\u0000\u0000The current condition coverage percentage of coral reefs in the waters of Gosong Island was 55%\u0000Percentage of dead coral with algae founded on Gosong Island is 28%\u0000On Gosong Island there are 11 families, namely Acroporidae, Agariciidae, Faviidae, Fungiidae, Merulinidae , Mussidae, Dendrophylliidae, Oculinidae, Pectiniidae, Pocilloporidae and Poritidae\u0000\u0000Abstract\u0000The coral reef ecosystem is an important ecosystem; its existence has a very close relationship with the surrounding ecosystem and the reef fish community. The direct and indirect dependence of reef fish on coral reefs has become an important issue at the national and international levels. This study aimed to determine the characteristics of coral reef ecosystem conditions, the percentage of coral growth, identify the types of coral reefs, and the diversity of reef fish species on Gosong Island, Southwest Aceh. Coral reef biophysical characteristics were collected by measuring water quality, calculating the percentage of coral coverage using the Point Intercept Transect (PIT) method, and the abundance of reef fish using the Underwater Fish Visual Census (UFVC) method. The condition of average percentage of coral reefs in the waters of Gosong Island was in a good category (55%), found as many as 31 genera of hard corals included in the line transect. The percentage of base substrate that dominates other than live coral is dead coral with algae (DCA) of 28%. The average abundance of reef fish in Gosong Island waters is 11,260 ind/ha with an average reef fish biomass of 2074,095 kg/yield. The water quality results show good conditions for coral growth in location. Based on the analysis of the structure of the fish community found in the coral reef area, the results showed good results, so the research location became a good habitat for various types of fish associated with coral reef ecosystems on Gosong Island","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43796808","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}

{"title":"Microplastic Contamination in Marine Fish and Shells in the Coastal Areas of Jember Regency, Indonesia","authors":"P. Ningrum, A. Negoro, D. E. Indahyani, Kusnadi, Yanuar Nurdiansyah","doi":"10.20473/jipk.v15i1.34888","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.34888","url":null,"abstract":"Highlight Research\u0000\u0000Fish and shellfish on the coast of Payangan and Puger\u0000Several types of microplastics were detected in their gastrointestinal tract\u0000There were microplastic types of fiber, fragments, granules, and filaments\u0000\u0000Abstract\u0000Every year, it is estimated that the Indonesian seas receive 100,000-400,000 tons of plastic waste used for human consumption. Indiscriminate disposal of plastic waste will have an impact in the future. The problem of microplastics is an illustration that the use of plastic in daily activities will cause environmental ecological damage. The purpose of the study was to describe microplastic contamination in marine fish and shells in the coastal areas of Jember Regency, Indonesia. The method used is to detect and identify the type and numbers of microplastic particles in the gastrointestinal tract content of sea fish and shells obtained from fishermen around Payangan and Puger coastal Jember, Indonesia. The gastrointestinal tract was extracted with peroxide oxidation method (WPO). A light microscope was used to examine microplastic particles of types and numbers. The results showed that marine fish and shells in the coastal area of Jember Regency, Indonesia have been contaminated with microplastic. The microplastic in each marine fish and shells sample has a different type. There were microplastic types of fiber, fragments, granules, and filaments in the shells sample, while in the marine fish samples, there were all these types except granules. Fish and shellfish on the coast of Payangan and Puger had several types of microplastics detected in their gastrointestinal tract.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46372403","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}

{"title":"Effect of Dosages and Temperatures on Simalungun Red Ginger (Zingiber officinale var. Rubrum) Ethanol Extract Dipping on Masculinization of Zebra Fish (Danio rerio) as a Model Fish","authors":"Eka Fitria Febriani, M. Widodo, A. Faqih","doi":"10.20473/jipk.v15i1.38271","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.38271","url":null,"abstract":"Highlight Research\u0000\u0000Successive administration of Ginger ethanol extract to male individuals was shown to be able to produce a significant increase in sperm count, motility, viability and morphology\u0000Ethanol extract of ginger has androgenic activity which is proven to be able to increase the concentration of testosterone in serum, which functions to control the process of spermatogenesis, maintain Sertoli cells and play a role in determining the quality of spermatozoa in male organisms\u0000Giving ginger ethanol extract for 30 consecutive days to male individuals showed significant results so that ginger extract was thought to have the potential to improve male characteristics\u0000Ginger extract is potentially useful in improving healthy sperm characteristics and management of male infertility especially in those with low sperm counts\u0000\u0000 \u0000Abstract\u0000Ornamental fish are known to be easily cultivated in aquarium or pond. Many people prefer male (MF) over female fish (FF) due to their aesthetic value and productivity which lead to better pricing. The aim of this study was to determine the effect of Simalungun Red Ginger (Zingiber officinale var. Rubrum) (SRG) on masculinization. This study used dipping method which was carried out using Simalungun Red Ginger (Zingiber officinale var. Rubrum) (SRG). The temperature treatments used in this study were 28°C and 32°C. For this research, an experimental study with a Completely Randomized Factorial Design (CRFD) method that had two independent variables such as different dosages and temperatures was used. From five dosages (0 mg/L; 5 mg/L; 10 mg/L; 15 mg/L; 20 mg/L) and three temperature treatments (ambient temperature (about 25°C; 28°C; 32°C), it was found that the highest male percentage of primary sexuality (88.33%), secondary sexuality (85%), and highest total testosterone levels (TL) (1.986 ng/L) were at the treatments with the highest dosages and temperature, while for the highest survival rate were at almost in all B treatments (5 mg/L) and b levels (28°C), in which the survival rate was 100%. For all of these results above, the results were significant.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41341921","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}

{"title":"What Lies Inside a Dead Coral: Diversity of Reef-Associated Cryptic Crustacean (Crabs: Anomura and Brachyura) from Different Habitat Characteristics in Tidung Islands, Indonesia","authors":"Satya Pratama Atmaja, P. Santoso, Muhamad Gilang Arindra Putra, Fadel Muhammad, Wiwid Andriyani Lestariningsih, Beginer Subhan, Hawis Madduppa","doi":"10.20473/jipk.v15i1.37679","DOIUrl":"https://doi.org/10.20473/jipk.v15i1.37679","url":null,"abstract":"Highlight Research\u0000\u0000The very first attempt to investigated and revealing biodiversity of crustacean crab in coral reef ecosystem at Tidung Island, Indonesia\u0000Conservation area (Tidung Kecil) has more abundant crab species than tourism area (Tidung Besar).\u0000A microhabitat that suffers anthropogenic pressure may alter the composition of crustacean biodiversity, especially in crab group.\u0000Different characteristics and complexity of coral habitat affect the dynamics of cryptic crustacean communities\u0000\u0000 \u0000Abstract\u0000 \u0000Recent studies have been widely carried out on the important role and ecological function of coral reefs. However, little attention has been given to small and cryptic crustaceans organisms living within different microhabitat in dead corals. This study aimed to reveal the diversity of crustaceans that inhabit dead corals in Tidung Islands, Indonesia. A total of 134 individuals from 41 species in 13 families were recorded within eight dead corals taken from two different sites. Furthermore, the species identified from Tidung Kecil were significantly different and more diverse than Tidung Besar. It was suggested that differences in anthropogenic pressure between Tidung Besar and Kecil might have an important role in the spread of crab crustaceans’ organisms. Xanthidae from infraorder Brachyura were observed to be the most dominant family, while Galatheidae and Porcellanidae from infraorder Anomura spread almost equally in both sites. Additionally, Psaumis cavipes and Chlorodiella nigra were species with the largest contribution of crab crustaceans’ communities in the death of coral’s ecosystem in the Tidung Islands. This result indicated that dead corals might play a key role in supporting and providing a habitat for crustacean cryptic.","PeriodicalId":17760,"journal":{"name":"Jurnal Ilmiah Perikanan dan Kelautan","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49120338","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}