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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Published by Universitas Syiah Kuala
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 563 Documents
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Practical application of sea urchin shell flour supplementation as a stimulant moulting in vannamei shrimp Heriansah Heriansah; Nursyahran Nursyahran; Nursidi Nursidi; Nur Fajriani Nursida; Najamuddin Najamuddin
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.19456

Abstract

The practical application of waste recycling as feed supplement is potentially required by small-scale aquaculturist. Furthermore, some of the flour derived from waste sea urchin shells and in adopted in feed, including Deadema setosum were evaluated to estimate the effect on white shrimp Litopenaeus vannamei moulting. This research required the experimentation of four doses with triplicate supplementation (0, 2, 4, and 6 g 100 g-1 of feed) on shrimps four times daily (12% of body weight) for 35 days test period. The juvenile specimens, characterized by an initial weight of 1.61±0.11 g, were stocked at a density of 12 individuals in a 12 L aquarium. In addition, four compartments were created in each aquarium to facilitate progress observations. The proximate analysis results showed a 53.76±0.27% calcium content in the shell flour, which significantly increased (P0.05) after higher dose supplementation, in the sequential order 18.65±0.13%, 20.04±0.08%, 23.18±0.10%, and 25.04±0.11%. Moreover, the frequency and moulting interval with 4 g doses (16.59%±0.36% day-1 and 5.91±0.18 days-1) were significant (P0.05) and considered the best, compared to 0 g (10.48% ± 0.24% day-1 and 9.97±0.37 days-1), 2 g (13.49%±0.96% day-1 and 8.10±0.29 days-1), and 6 g (13.81%±0.24% day-1 and 7.90±0.06 days-1). In addition, the respective trend pattern for both parameters increased and decreased at 4 g and 6 g, correspondingly. The highest moulting intensity was also obtained with the 4 g doses, at a range of 4 to 6 times, while the lowest (0 g) varied from 3 to 4 times. These sea urchin shell flour was determined to have numerous practical applications as a feed supplement with proven ability to stimulate moulting in vannamei shrimp.Keywords:MoultingCalciumShellSea urchinFeed supplementationVannamei shrimp 
Penambahan mineral kalsium dari cangkang kepiting bakau (Scylla serrata) pada pakan terhadap pertumbuhan dan kelangsungan hidup udang galah (Macrobrachium rosenbergii) Fajar Fajri; Azwar Thaib; Lia Handayani
Depik Vol 8, No 3 (2019): December 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.8.3.12090

Abstract

Abstract. Mud crab shell is one of the most fisheries waste can be utilized as calcium source because it contains lots of calcium carbonat. Utilizing of crab shells flour in fed is important applied as calcium supplements to freshwater prawn. The purpose of this research is to knows the effects of calcium addition from mud crab shells on fed to increase the growth rate, survival rate and moulting frequency freshwater prawn. The research has been done during 70 days in fisheris Laboratory, Abulyatama University. Result of the research shows that two percents calcium addition on fed give higher growth rate value, survival rate value and moulting frequency value than other treatments and were not added calcium on fed. The average of freshwater prawn growth rate are treatment A (0% CaO)= 1.20 g, B (1% CaO) = 1.41 g, C (2% CaO) = 1.92 g, D (3% CaO) = 1.77 g. The average of freshwater prawn survival rate result shown by treatment A = 75 %, B = 91,1 %, C = 91,1 %, and D = 89 %. The moulting frequency value results shown by treatment A = 1,06 ; B = 1,22; C = 1,57 and D = 1,34. Keywords : Calcium, Freshwater Prawn, Macrobranchium rosenbergii, Moulting Abstrak. Cangkang kepiting bakau merupakan salah satu limbah perikanan yang dapat dimanfaatkan sebagai sumber kalsium karena cangkang kepiting mengandung kalsium karbonat tinggi. Pemanfaatan tepung cangkang kepiting pada pakan adalah sebagai suplemen. Tujuan dari penelitian ini untuk mengetahui pengaruh penambahan mineral kalsium dari cangkang kepiting bakau pada pakan untuk meningkatkan laju pertumbuhan, kelangsungan hidup dan frekuensi molting udang galah. Penelitian ini dilakukan selama 70 hari di laboratorium perikanan, Universitas Abulyatama. Hasil dari penelitian menunjukkan bahwa penambahan 2 % kalsium pada pakan memberikan hasil tertinggi untuk laju pertumbuhan, kelangsungan hiidup dan frekuensi molting udang galah dibanding perlakuan lain. Nilai rata-rata pertumbuhan udang galah tiap perlakuan adalah sebagai A (0% CaO) = 1,20 gr, B (1% CaO) = 1.41 gr, C (2% CaO) = 1.92 gr dan D (3% CaO) = 1,77 gr. Sedangkang nilai rata-rata kelangsungan hidup udang galah adalah A = 75 %, B = 91,1 %, C =91,1 % dan D = 89 %. Nilai ata-rata frekuensi molting udang galah selama pemeliharaan pada tiap perlakuan adalah A = 1,06 kali/ekor, B = 1,22 kali/ekor, C = 1,57 kali/ekor dan D = 1,34 kali/ekor. Kata kunci: Kalsium, Macrobranchium rosenbergii, Moulting, Udang Galah
Ekstrak daun Avicennia marina sebagai anti jamur pada telur ikan mas, Cyprinus carpio (Avicennia marina leaf extracts as an anti fungal for common carp, Cyprinus carpio eggs) Sofyatuddin Karina; Irma Dewiyanti; Mawardah Mawardah
Depik Vol 5, No 3 (2016): December 2016
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.5.3.5573

Abstract

The objective of this research was to determine the effect and the optimum concentration of Avicennia leaf extracts on prevalence, hatching rate and hatching time of common carp eggs (Cyprinus carpio) that infected by Saprolegnia sp. The research was conducted at Balai Benih Ikan (BBI) Lukup Badak, Aceh Tengah District in June 2016. The completely randomized design was used as statistical analysis method in this study with five treatments and 4 replications. The fertilized eggs of common carp were infected by Saporolegnia sp. then treated by immersing in the extract. The treatments were the different concentrations of extract, namely; 0, 5, 10, 15 and 20 ppm. The result of ANOVA test showed that the extract Avecenia leaf extracts gave the significant effect on the prevalence, hatching rate and hatching time of common carp eggs (P0.05). The best results for all parameters were recorded at the concentration of 10 ppm. Therefore, it is concluded that the optimum concentration is 10 ppm. Penelitian ini bertujuan untuk mengetahui pengaruh dan konsentrasi optimum ekstrak daun Avicennia marina terhadap prevalensi, daya tetas serta waktu tetas telur ikan mas (Cyprinus carpio) yang terinfeksi Saprolegnia sp. Penelitian dilakukan di Balai Benih Ikan (BBI) Lukup Badak, Kab. Aceh Tengah pada bulan Juni 2016. Analisis statistik menggunakan metode Rancangan Acak Lengkap (RAL) dengan 5 taraf perlakuan dan 4 kali ulangan. Sampel yang digunakan adalah telur ikan mas yang telah terbuahi dan terinfeksi dengan jamur Saprolegnia sp. kemudian direndam dengan ekstrak. Perlakuan yang dilakukan meliputi perlakuan konsentrasi ekstrak yaitu: 0, 5, 10, 15, 20 ppm. Hasil uji ANOVA menunjukkan bahwa ekstrak daun Avicennia marina berpengaruh nyata (P0,05) terhadap prevalensi serangan jamur, daya tetas serta waktu tetas telur ikan mas. Nilai terbaik untuk semua parameter yang diukur ditemukan pada konsentrasi 10 ppm ekstrak. Oleh karena itu disimpulkan bahwa konsentrasi yang optimum untuk telur ikan mas adalah 10 ppm.
Isolasi dan karakterisasi bakteri berpotensi probiotik pada ikan kembung (Rastrelliger sp.) Yuni Dewi Safrida; Cut Yulvizar; Cut Nanda Devira
Depik Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.3.124

Abstract

Abstract. Probiotics bacteria are beneficial microbes to improve microbial balance in the digestive tract. The objective of the research was to isolate and characterize of potential probiotic bacteria in mackerel fish (Rastrelliger sp.). The research was done from April to August 2012 at Laboratory of Microbiology Syiah Kuala University, Banda Aceh. Isolation and characterization used dilution and scratches quadrant methods. The result showed that there were five potential isolates of probiotic bacteria varied morphological colony and cell. The isolate have circular form (100%), entire margin (80%), flat (60%), cream color (40%), gram positive bacteria (80%), coccus shape (100%) and non motile (60%).Keywords: Probiotics, Rastrelliger sp., isolation, digestive and characterization
Effect of water acidity on the growth performance, survival, and hematology condition of the barramundi fish Lates calcarifer (Bloch, 1790) fingerling Fitriana, Mustika Marzah; Fadli, Nur; Muchlisin, Zainal Abidin
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.1.31246

Abstract

Global warming is caused by increased carbon emissions into the atmosphere resulting from burning oil, gas, and other fossil fuels. Subsequently, the carbon gas enters the waters through a diffusion process facilitated by the concentration of gases in the air, which is higher than in the waters. The outcome of this process is a decrease in water acidity, leading to a lower pH, which can disrupt the life of aquatic biotas. Therefore, this study aims to analyze the effect of decreasing of pH on the growth, survival, and physiological conditions of barramundi (Lates calcarifer). To achieve this objective, seven pH levels were tested, namely pH of 7.24 (control), pH 6.74, pH 6.24, pH 5.74, pH 5.24, pH 4.74, and pH 4.24. Every treatment was performed with four replications, and the fish was reared for 30 days in the respective tested pH. The reared madia is sea water with a salinity of 22 ppt. The experiment was conducted in the laboratory of fish breeding Faculty of Marine and Fisheries, Universitas Syiah. The results showed that a decreasing in pH had a significant effect on the growth performance and hematological condition of barramundi (P0.05), but its had no significant effect on survival (P0.05). The experimental fish could survive at pH 4.24, but their growth and hematological conditions were disrupted below 6.24. Therefore, it was concluded that the lower threshold value of pH for barramundi was 6.24.Keywords:Global warmingOcean aciditypHFisheries productionPhysiological disturbance
Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province Irma Dewiyanti; Darmawi Darmawi; Zainal Abidin Muchlisin; Teuku Zahrial Helmi; Iko Imelda Arisa; Cut Nanda Defira; Fitriyani Fitriyani; Sawva Yura
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.22964

Abstract

Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water used Carboxy Methyl Cellulose (1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian //  TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//
Potensi limbah kulit buah Nyirih Xylocarpus granatum sebagai inhibitor tirosinase Mohamad Gazali; Neviaty P Zamani; Irmanida Batubara
Depik Vol 3, No 3 (2014): Desember 2014
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.3.3.5711

Abstract

The aim of the present study was to analyse the peel waste of Xylocarpus granatum fruits as potential source of tyrosinase inhibitors. Dried peel samples were ground to yield a powder (simplicia). Subsequently, they were extracted with organic solvents of distinct polarity levels, namely n-hexane (non-polar), chloroform (semi-polar) and methanol (polar) by use of the single-maceration method. Inhibitory effects on tyrosinase activity (monophenolase) and DOPA auto-oxidation (diphenolase) were determined in bioassays. Assays with the methanol extract revealed IC50 values of 784.87 μg mL-1 (monophenolase) and of 1176.66 μg mL- 1 (diphenolase), respectively. In contrast, n-hexane and chloroform extracts showed no activity. These results indicate that the methanolic fruit peel extract contained tyrosinase-inhibiting compounds, such as flavonoids, tannins and saponins, whereas the nhexane and chloroform extracts yielded alkaloids, steroids and triterpenoids without tyrosinase-inhibiting activity. The phenolic compounds had a strong effect on the tyrosinase enzymes, inhibiting monophenolases by 97% and diphenolases by 96%, with a positive correlation between the total phenolic content and the inhibition rate in both activities. Penelitian ini bertujuan untuk menganalisis kulit buah Xylocarpus granatum sebagai sumber potensial inhibitor tirosinase. Sampel kering digiling untuk menghasilkan (serbuk) simplisia. Berikutnya, simplisia diekstraksi dengan pelarut organik dengan tingkat kepolaran yaitu n-heksana (non polar), kloroform (semi polar) dan metanol (polar) dengan menggunakan metode maserasi tunggal. Pengaruh inhibisi didalam aktivitas tirosinase (monofenolase) dan auto-oksidasi DOPA (difenolase) ditentukan di dalam uji. Uji ekstrak metanol menunjukkan masing-masing nilai IC50: 784,87 μg mL-1 (monofenolase) dan nilai IC50: 1176,66 μg mL- 1 (difenolase). Sebaliknya, ekstrak n-heksana dan kloroform menunjukkan tidak ada aktivitas. Hasil penelitian ini menunjukkan bahwa ekstrak metanol kulit buah X. granatum mengandung senyawa-senyawa yang menghambat aktivitas tirosinase seperti flavonoid, tanin dan saponin sedangkan ekstrak n-heksana dan kloroform menghasilkan senyawa alkaloid, steroid, dan triterpenoid tanpa penghambatan aktivitas tirosinase. Senyawa fenolik mempunyai pengaruh kuat dalam menginhibisi enzim tirosinase baik aktivitas monofenolase sebesar 97% dan aktivitas difenolase sebesar 96% dengan korelasi positif antara kandungan total fenol dan tingkat inhibisi pada kedua aktivitas
Struktur vertikal upwelling – downwelling di Samudera Hindia Selatan Jawa hingga Selatan Bali berdasarkan salinitas musiman periode 2004 – 2010 Restu Wardani; Widodo S Pranowo; Elis Indrayanti
Depik Vol 2, No 3 (2013): December 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.3.994

Abstract

Abstract. Salinity plays an important role for phenomenon identification of upwelling and downwelling. Upwelling that occurs in the Indian Ocean south of Java to South of Bali is influenced by monsoons, ENSO (El Nino Southern Oscillation) and IOD (Indian Dipole Oscillation Mode). Upwelling and downwelling patterns based on vertical structure of salinity and its seasonal variability within seven years (2004 to 2010) is studied here. Argo Float dataset is used in this study, processed by Ferret software for a vertical schematic model, and Pearson correlated with IOD and SOI indexes. The aim of this study is to  obtain the pattern of upwelling and downwelling based on profile of seasonal salinity during the period 2004-2010 in Indian Ocean south of Java – Bali and correlated with ENSO and IOD.  Further discussion on upwellling is provided since it is more important to the fisheries activity. Result shows an intensive upwelling phenomenon occurs at 110°E correlated with fishing ground area. ENSO and IOD phenomena has been founded also affect upwelling. Upwelling increasing in intensity during the La Nina - IOD (+). The upwelling is negative linear correlated with SOI(-0,89643), but its positive linear correlated with IOD (+0,798168).Keywords : vVrtical structure salinity; Seasonal upwelling; Indian Ocean; South Java-Bali Seas. Abstrak. Salinitas berperan penting untuk mengidentifikasi fenomena upwelling dan downwelling. Upwelling yang terjadi di samudera Hindia Selatan Jawa hingga Selatan Bali dipengaruhi oleh angin musim, ENSO (El Nino Southern Oscillation) dan IOD (Indian Oscillation Dipole Mode). Dalam peneletian ini dikaji pola upwelling dan downwelling berdasarkan distribusi salinitas secara vertikal dan vaeriabilitas musiman dikaji dalam waktu tujuh tahun (2004 – 2010). Data hasil akuisisi argo float digunakan dalam penelitian ini, diolah menggunakan software Ferret selanjutnya dilakukan  pembuatan model skematik  dan analisa korelasi pearson terhadap Indeks IOD dan SOI. Tujuan dari penelitian ini untuk memperoleh pola upwelling dan downwelling terhadap musim berdasarkan profil salinitas selama periode 2004 – 2010 di Samudera Hindia Selatan Jawa hingga Bali dan hubungannya dengan fenomena ENSO dan IOD.Penelitian lebih lanjut tentang upwelling penting untuk industri perikanan. Hasil penelitian menunjukkan Fenomena upwelling secara intensif terjadi pada koordinat bujur 110°BT, menunujukkan adanya kesesuaian dengan lokasi daerah penangkapan ikan. Fenomena ENSO dan IOD juga mempengaruhi upwelling, intensitasnya meningkat saat periode La Nina-IOD (+). Upwelling berkorelasi negatif terhadap SOI (-0,89643), sedangkan  upwelling berkorelasi posetif dengan IOD (+0,798168).Kata Kunci: Struktur vertikal salinitas; Upwelling musiman; Samudera Hindia; Laut Selatan Jawa-Bali
Feed efficiency with the addition of probiotics for asang fish fry, Osteochilus vittatus, CV Usman Bulanin; Yuneidi Basri; Sri Puja Lestari
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.20168

Abstract

The purpose of this study was to determine the addition of probiotics in commercial feed to the growth and survival of Asang fish (Osteochilus vittatus CV) fry. This study used an experimental method with a completely randomized design (CRD) with 4 treatments and 3 replications. The test fish used were 120 fish with a size ranging from 5-8 cm. The test fish were kept in a waring cage made of a type of paralon frame with a size of 40 x 40 x 45 cm. The treatment in this study was A (without probiotics), treatment B (addition of probiotic 10 ml/kg of feed), treatment C (addition of probiotic 20 ml/kg of feed), and treatment D (addition of probiotics 30 ml/kg of feed). From the results of this study, the highest specific growth rate was found in treatment D (6.66 ± 1.15 g), while the mean survival was 100% for all treatments. The highest FCR of fish fry was found in treatment A namely 1.43 ± 0.22, and the lowest in treatment D namely 1.12 ± 0.21, and for feed efficiency in treatment D, namely 95.24 ± 1.04 %.Keywords:Asang fishEfficiencyGrowthSurvival
Monitoring the endemic ornamental fish Pterapogon kauderni in Bokan Kepulauan, Banggai marine protected area, Indonesia Samliok Ndobe; Kris Handoko; Deddy Wahyudi; Moh. Yasir; Yulina Irawati; Wendy Alexander Tanod; Abigail Mary Moore
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.15363

Abstract

Abstract. The Banggai cardinalfish Pterapogon kauderni is a species of national and international conservation concern. Established in November 2019, the Banggai marine protected area (MPA) in Central Sulawesi, Indonesia covers most of the endemic range of this ornamental fish. The third repeat survey (T2 monitoring) under the National Action Plan for Banggai Cardinalfish Conservation (NAP-BCFC) was carried out in October 2019 at eight sites in the Bokan Kepulauan region within the MPA. The T2 monitoring used the standard NAP-BCFC belt transect method. Data were collected on P. kauderni abundance (by size class: recruits, juveniles, adults) and microhabitat (sea urchins, sea anemones, hard corals, and others). Data were evaluated with respect to the T0 (2017) survey and T1 (2018) monitoring at the same sites, as well as previous surveys in 2004 (2 sites) and 2012 (4 sites). The data show wide between-site variation in P. kauderni and microhabitat parameters, with one subpopulation at very high risk of extirpation. Trends included declines over time in P. kauderni, sea urchin and sea anemone abundance, with an increase since 2017 in hard coral microhabitat use by adult P. kauderni. We recommend evaluation of other P. kauderni populations in Bokan Kepulauan and specific site or zone-based actions. However, we conclude that the most urgent priority for P. kauderni conservation in Bokan Kepulauan is protection of key microhabitat through a moratorium on sea urchin and sea anemone collection in P. kauderni habitat.  Keywords: Banggai cardinalfish, endangered species, marine conservation, microhabitat, monitoring, ornamental fishery, CITES

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