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All Journal HAYATI Journal of Biosciences Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Biologi Tropis Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Jurnal Penelitian Perikanan Indonesia Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management

Agus Alim Hakim

Departemen Manajemen Sumberdaya Perairan, Fakultas Perikanan Dan Ilmu Kelautan, IPB, Bogor, Indonesia

Author-ID : 560046

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Immunology & microbiology Library & Information Science

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Two Newly Recorded Species of the Lobster Family Scyllaridae (Thenus indicus and Scyllarides haanii) From South of Java, Indonesia Yusli Wardiatno; Agus Alim Hakim; Ali Mashar; Nurlisa Alias Butet; Luky Adrianto
HAYATI Journal of Biosciences Vol. 23 No. 3 (2016): July 2016
Publisher : Bogor Agricultural University, Indonesia

Two species of slipper lobster, Thenus indicus Leach, 1815, and Scyllarides haanii De Haan, 1841, are reported for the first time from the coastal waters of South of Java, part of the Indian Ocean. A total of two specimens, one specimen of T. indicus from Palabuhanratu Bay and one specimen of S. haanii from Yogyakarta coastal waters, were collected in April and September 2015, respectively. Descriptions and illustrations of the morphological characteristics of the two species and their habitat are presented.

SPECIES COMPOSITION OF FRESHWATER EELS (Anguilla spp.) IN EIGHT RIVERS FLOWING TO PALABUHANRATU BAY, SUKABUMI, INDONESIA Agus Alim Hakim; M Mukhlis Kamal; Nurlisa A Butet; Ridwan Affandi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 2 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Freshwater eel (Anguilla spp.) is a catadromus fish that migrates from freshwater into seawater for spawning and return to freshwater during larvae stage to grow. The objective of this study was to determine species composition of tropical freshwater eels based on morphology collected from several rivers flowing in to the Palabuhan Ratu Bay. Young, adult, and glass eels were caught in August 2014 until Desember 2014. Glass eels were only caught in Cimandiri River. Freshwater eels were classified by ano-dorsal length (AD) divided by total length (TL), cluster analysis, and discriminant analysis based on morphometric data. The results showed different AD/TL of young and adult, i.e., 1.93±0.51 for A. bicolor bicolor, and 16.99±0.65 for A. marmorata, and three different AD/TL of glass eels i.e.,1.72±1.05 for A. bicolor bicolor6.60±1.79 for A. nebulosa nebulosa, and 15.07±1.04 for A. marmorata. Cluster analysis showed three groups of population characters of young and adult eels i.e. A. bicolor bicolor (2 groups) and A. marmorata (1 group). Discriminant analysis showed three groups of glass eels population i.e., A. bicolor bicolor, A. nebulosa nebulosa, and A. marmorata. Morphological identification showed that young and adult eels in Cibareno and Citepus rivers had two species i.e., A. bicolor bicolor and A. marmorata. Glass eels from Cimandiri river had three species i.e., A. bicolorbicolor, A. nebulosanebulosa, and A. marmorata. A. bicolor bicolor was found in each rivers and as a dominant species in Palabuhan Ratu Bay.Keywords: A. bicolor bicolor, A. marmorata, A. nebulosa nebulosa, species composition

SPAWNING AND DEVELOPMENT OF DOG CONCH Strombus sp. LARVAE IN THE LABORATORY . Muzahar; Agus Alim Hakim
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 10 No. 1 (2018): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

An intensive exploitation of dog conch Strombus sp. in Tanjungpinang city coastal waters has occurred because the increasing number of fishermen, population growth and demand. In addition, the increasing activities of bauxite mining cause the declining in quality of waters around dog conch, thus providing ecological pressure that endangers sustainability of the dog conch. The purpose of this study was to observe the spawning and development of dog conch in the laboratory. Spawning was done in aquarium with 100 liters of seawater (salinity: 26±1 ppt), with stimulation of spawning performed by changing 90% water volume every day until the female issued the eggs. The female issued the eggs on the third and fourth days of stimulation. Eggs are attached to the wall of the aquarium. Egg cell division occurs after about 2 hours of the egg is released the mother, from one cell into two cells and a row into four cells, eight cells, the sixteen cells, thirty-two cells to multicellular. The embryo develops into a gastrula phase than trochophore phase. Larvae were reared in a tank containing 20 liters of seawater (salinity: 26±1 ppt). Veliger larvae occurred on the fifth day until the eleventh day. Veliger larvae are planktonic, and turn into benthic with a sedentary life in the bottom waters to begin the formation of a thin and transparent shell. The value of water quality parameters during maintenance category feasible: DO of 7.6 to 7.8 mg / L; pH of 8.13 to 8.33; turbidity of 1.97 to 3.90 NTU, salinity of 26.8 to 27.8 ppt; and temperature of 25.8-27.8°C.

Burrowing Time of the Three Indonesian Hippoid Crabs After Artificial Dislodgment Yusli Wardiatno; Yuyun Qonita; Agus Alim Hakim
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 21, No 3 (2016): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Three species of hippoid crabs are the target species of intertidal fishery along coastal line in District Cilacap, south Java; namely Emerita emeritus, Hippa adactyla and Albunea symmista. In Adipala sandy beach, Cilacap an experiment was conducted to reveal the burrowing time and velocity of the crabs. The experiment was performed by removing the crabs from their burrows, measuring their carapace length, and releasing them immediately on the substrate. Burrowing time was measured from the start of burrowing to the disappearance of the entire carapace under the sediment surface. Among the three species, E. emeritus had the fastest burrowing time. As a consequence in terms of velocity, the burrowing velocity of Albunea symmista was higher than that of Hippa adactyla and Emerita emeritus; meaning that with the same size A. symmista needs longer time to burrow. By evaluating with other previous studies, the burrowing time and burrowing velocity of the three sand crabs were comparable. The ability of fast burrowing in the three species seems likely to be the advantage for their survival in large wave disturbed coarse sandy habitat and for their ability to widely exist along the sandy coast of south Java. Keywords: behavior; Indian ocean; intertidal; sand crab; south Java; swash zone

Pengaruh probiotik nitrifikasi terhadap pertumbuhan populasi bakteri patogen, Vibrio sp., dan gas nitrogen beracun di dalam media budidaya udang laut pada kondisi laboratorium Bambang Widigdo; Munti Yuhana; Aliati Iswantari; Claritha Madonsa; Inka Destiana Sapitri; Yusli Wardiatno; Agus Alim Hakim; Fitriana Nazar
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 11 No. 1 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.1.130-140

Intensification of shrimp farming has led to problems of water quality and development of pathogenic bacteria. The excess feed and fecal deposited in the bottom of the pond undergo ammonification and result in excess of ammonia formation in pond water and sediment. The purposes of this research was to investigate the impact nitrifying bacteria application on the controlling of pathogenic Vibrio sp. bacteria and toxic nitrogen gasses. Twelve (12) transparent glass bottles (effective volume of 3 L) were used in this research. Tested probiotic was purchased in free market and producer claims to contain Nitrosomonas sp., Nitrosococcus sp., Nitrobacter sp., Bacillus sp., Aerobacter sp., and Pseudomonas sp. The tested media was sea water containing Vibrio sp., TAN, NO2 and NO3 of 54.07 ± 2.93 mg/L; 6.33 ± 0.17 mg/L; 2.43 ± 0.04 mg/L; and 0.46 ± 0.01 mg/L respectively. The treatment of probiotic was 0 mg/L as a control; 0.1 mg/L; 0.2 mg/L; and 0.4 mg/L with 3 replications. In regard to concentration of Vibrio sp., NH3 and NO2 gasses, treatment doses of 0.1 mg/L (A) resulted a save level within 4 days after treatment, but to more secure in the practical work for shrimp farm, the doses of 0.2 mg/L (B) is suggested.

Population dynamics of pronghorn spiny lobster (Panulirus penicillatus) in Palabuhanratu Bay, Sukabumi, West Java Mennofatria Boer; Rudi Alek Wahyudin; Yusli Wardiatno; Achmad Farajallah; Agus Alim Hakim
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 11 No. 2 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.2.204-214

Pronghorn spiny lobster (Panulirus penicillatus) is one of the dominant lobsters and has high economic value. The fishing activities are conducted continuously and put aside the preservation of these resources. This study purposed to analyze the population dynamics of pronghorn spiny lobster (Panulirus penicillatus) in Pelabuhanratu Bay, Sukabumi, West Java. The data were collected from January until December 2016 with samples from local fisherman. Lobsters were measured carapace length and total weight. Data analysis included the relationship between length and weight, growth parameters, recruitment patterns, mortality, exploitation rate, length at first maturity or incubating eggs (Lr), and length for first capture (Lc). Panulirus penicillatus from the Palabuhanratu Bay has growth pattern of a negative allometric in both males and females. The asymptotic carapace length (CL∞) of males is higher than females while the growth coefficient (K) of males is lower than females. The peak recruitment for males is expected to be in April and July, while for females in May and August. The total mortality rate of males is higher than the natural mortality rate and vice versa for females. The male lobsters have occurred overexploitation, while females have not occurred overexploitation. The female lobsters have an Lr <Lc value which indicates that the female lobsters are caught after incubating the eggs.

What's wrong with the coastal waters of Spelman Strait, Indonesia: Sustainable reef fisheries management is required Rahmat Kurnia; Muis; Agus Alim Hakim
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 11 No. 3 (2021): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.11.3.408-418

Reef fish in Spelman strait, Indonesia, is one of the fishery resources of considerable economic value. Unfortunately, there is still the use of unfriendly resources equipment (destructive fishing) that cause potential social problems. In this study, all components of the EAFM (Ecosystem Approach to Fisheries Management) composed of 6 domains, namely (1) fish stocks, (2) environment and ecosystem, (3) fishing techniques, (4) culture, (5) social, and (6) institutional are analyzed combining with MDS (Multidimensional Scaling). The main aim of this research is to find out the root solution for managing coral reefs in the coastal waters of Spelman Strait. The sustainability status review in the fishery resource domain, the environment and ecosystem domain, the fishery technique domain, the social domain, and the economic domain were respectively were 87.69, 88.17, 51.22, 51.61, and 72.67 which were in the category sustainable. Meanwhile, the sustainability status review in the institutional domain was 42.15, which was in the category of less sustainable. Institutions are the primary base for reef fishery protection in the Spelman Strait.

Identifikasi Karakterstik Molekuler Gen 16S rRNA Parsial pada Paus Sperma (Physeter macrocephalus Linnaeus, 1758): Identifikasi Karakterstik Molekuler Gen 16S rRNA Parsial pada Paus Sperma (Physeter macrocephalus Linnaeus, 1758) Muhammad Mukhlis Kamal; Nurlisa A Butet; Endah Sri Rahayu; Agus Alim Hakim
Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management Vol 2 No 1 (2021): Habitus Aquatica : Journal of Aquatic Resources and Fisheries Management
Publisher : Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/HAJ.2.1.21

Paus sperma (Physeter macrocephalus) merupakan salah satu mamalia laut yang dikategorikan dalam status vulnerable pada IUCN dan status Appendix I pada CITES. Identitas asli dari paus sperma secara molekuler dapat ditelusuri. Penelitian ini bertujuan untuk mengidentifikasi karakteristik molekuler paus sperma (P. macrocephalus) berdasarkan gen 16s rRNA parsial. Tiga contoh jaringan paus sperma yang dianalisis berasal dari perairan Laut Sawu, Nusa Tenggara Timur. Hasil identifikasi berdasarkan sekuen basa nukleotida gen parsial 16S rRNA menunjukkan bahwa ketiga contoh memiliki kemiripan dengan Physeter catodon sebesar 99%, dimana P. catodon merupakan sinonim dari P. macrocephalus. Pensejajaran sekuen nukleotida dengan outgroup (Balaenoptera physalus dan Balaena mysticetus) didapatkan nilai jarak genetik ketiga contoh dengan outgroup berkisar antara 0,0093–0,0726. Selain itu, didapatkan 25 nukleotida spesifik P. macrocephalus yang mampu membedakan dari spesies outgroup. Penelitian ini mampu memvalidasi spesies P. macrocephalus berdasarkan gen 16S rRNA dan dapat dijadikan sebagai marka molekuler yang kuat untuk identifikasi P. macrocephalus.

DINAMIKA POPULASI LOBSTER PASIR (Panulirus homarus Linnaeus, 1758) DI PERAIRAN PALABUHANRATU, JAWA BARAT Zairion Zairion; Nefi Islamiati; Yusli Wardiatno; Ali Mashar; Rudi Alek Wahyudin; Agus Alim Hakim
Jurnal Penelitian Perikanan Indonesia Vol 23, No 3 (2017): (September 2017)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Dinamika populasi merupakan aspek penting sebagai dasar pengelolaan perikanan dan informasi tentang aspek tersebut pada lobster pasir masih minim di perairan Palabuhanratu. Tujuan penelitian ini adalah mengkaji aspek pertumbuhan, pola rekrutmen, mortalitas dan laju eksploitasi lobster pasir (Panulirus homarus) di perairan Palabuhanratu. Penelitian ini dilakukan periode Juni 2015-Mei 2016 dengan metode sensus. Lobster pasir hasil tangkapan jaring insang dasar dengan jumlah total sampel 483 ekor mempunyai panjang karapas antara 28-100 mm. Pola pertumbuhan berdasarkan hasil regresi linear memperlihatkan allometrik negatif. Hasil analisis menggunakan metode ELEFAN I (Electronic Length Frequency Analysis) menunjukan koefisien pertumbuhan lobster pasir jantan (K = 0,29 per tahun), lebih kecil dibandingkan dengan betina (K = 0,40 per tahun). Rekrutmen terindikasi dua puncak dalam setahun: yaitu pada Februari-Mei dan September-Oktober). Laju mortalitaskarena penangkapan (F) mencapai 1,9-2,2 kali laju mortalitas alami (M). Nilai Lc<Lrmemperlihatkan lobster pasir sudah tertangkap sebelum mencapaiukuran rata-rata mengerami telur atau ukuran kematangan reproduktif. Laju eksploitasi lobster pasir mencapai 32-38% di atas laju eksploitasi optimum, sehingga lobster pasir sudah mengalamieksploitasi yang berlebih.Population dynamics is an important aspect as basic of fisheries management and little information of this aspect for spiny lobster fishery in Pelabuhanratu waters. This research aims to evaluate of growth aspects, recruitment pattern, mortality, and exploitation rate of scalloped spiny lobster (Panulirus homarus) in Palabuhanratu waters. This research was conducted in June 2015 until May 2016 using census method. The size of P. homarus captured using bottom gill-net with total sample 483 specimen was between 28-100 mm carapace lengths (CL). Linear regression showed that growth pattern was negative allometric. The growth coefficient of male (K = 0.29 per year) was found smaller than female (K = 0.40 per year) based on ELEFAN I (Electronic Length Frequency Analysis) method. Recruitment seems to be accrued twice peaks a year (February to May and September to October) and the highest was at February to May. Fishing mortality (F) reached 1.9 to 2.2 times of natural mortality (M). The LcÂLr value showed that female has been caught before reached the average size of bearing eggs or reproductive maturity size. The exploitation rate of spiny lobsters reaches 32-38% above optimum level. This study suggests that the spiny lobster fishery in Palabuhanratu in the state of overexploitation.

KANDUNGAN LOGAM BERAT Pb UNDUR-UNDUR LAUT DAN IMPLIKASINYA PADA KESEHATAN MANUSIA Cyrum Barnike Beru Ketaren; Agus Alim Hakim; Achmad Fahrudin; Yusli Wardiyatno
Jurnal Biologi Tropis Vol. 19 No. 1 (2019): Januari - Juni
Publisher : Universitas Mataram

Abstract: The mole crab (Hippidae) is a filter feeder organism from crustacean that inhabits in sandy coastal areas. Due to its nature, this organism is able to accumulate heavy metals in a large amount. The concentration of heavy metals in this organism will increase in line with the polluting condition of its habitat. Heavy metals which exceed the standard in the organism body will be implicated to the human health who consumes the organism. The sandy crabs are found in large amount in Widara Payung coastline, Cilacap Regency. They are captured by the locals for meals. The heavy metal content such as Lead in the organism body never been investigated in this area previously. This research aimed to estimate the health risk of people who consume the sandy crabs in the area of Widara Payung, Cilacap Regency. This research was conducted on April to May 2018 and a location of sampling was determined purposively. Samples consisted of three types namely sandy crab body, sediment, and seawater. Each sample was preserved in an ice box and then transported to Aquatic Productivity and Environment Laboratory in Bogor Agricultural Univeristy for heavy metal analyzing. Results of this research exhibited that the average of Lead content in the water, sediment, and body of the sandy crab were 0.007 mg/l, 43.43 mg/kg, 0,97 mg/kg, respectively. The Lead content in the crab body the standard issued by the government of Indonesia through the BPOM, namely 0.20 mg/kg. Regular monitoring of Pb concentration in the mole crab and its habitat is suggested. ÃÂ Keywords: consumption, Emerita emeritus, Hippidae, intertidal, pollution ÃÂ Abstrak: Undur-undur laut (Hippopidae) adalah crustacea filter feeder yang hidup di daerah pantai intertidal berpasir. Karena sifatnya, organisme ini mampu mengakumulasi logam berat dalam jumlah besar. Konsentrasi logam berat dalam organisme ini akan meningkat sejalan dengan kondisi polusi habitatnya. Logam berat yang melebihi standar dalam tubuh organisme akan berimplikasi pada kesehatan manusia yang mengkonsumsi organisme tersebut. Undur-undur laut dapat ditemukan dalam jumlah besar di pesisir Widara Payung, Kabupaten Cilacap. Mereka ditangkap oleh penduduk setempat untuk dikonsumsi. Kandungan logam berat seperti Pb dalam tubuh undur-undur laut belum pernah diteliti di daerah ini sebelumnya. Penelitian ini bertujuan untuk menentukan konsentrasi timbal (Pb) pada undur-undur laut dan implikasinya terhadap kesehatan manusia bila mengkonsumsinya di daerah Widara Payung, Kabupaten Cilacap. Penelitian dilakukan pada bulan April sampai Mei 2018 dan lokasi pengambilan sampel ditentukan secara purposif. Sampel terdiri dari tiga jenis yaitu undur-undur laut, sedimen, dan air laut. Setiap sampel yang diambil disimpan dalam kotak pendingin dan kemudian dibawa ke Laboratorium Produktivitas dan Lingkungan Perairan di Institut Pertanian Bogor untuk analisis logam berat. Hasil penelitian ini menunjukkan bahwa rata-rata kandungan Pb dalam air, sedimen, dan undur-undur laut masing-masing adalah 0,007 mg/l, 43,43 mg /kg, 0,97 mg/kg. Kandungan timbal dalam undur-undur laut telah melampaui standar yang telah dikeluarkan oleh pemerintah Indonesia melalui BPOM yaitu 0,20 mg/kg. Dengan nilai tersebut, konsumsi undur-undur laut memiliki resiko kesehatan pada manusia. Monitoring kandungan logam di lingkungan habitat dan pada undur-undur laut menjadi prioritas. ÃÂ Kata kunci: Emerita emeritus, Hippidae, intertidal, konsumsi, pencemaran

Co-Authors . Muzahar . Zairion Achmad Fahrudin ACHMAD FARAJALLAH Ali Mashar Aliati Iswantari Claritha Madonsa Cyrum Barnike Beru Ketaren Endah Sri Rahayu Fitriana Nazar Inge Anggraeni Bela Putri Dewi Inka Destiana Sapitri Iya Purnama Sari Luky Adrianto M Mukhlis Kamal Mennofatria Boer Mohammad Mukhlis Kamal Muhammad Mukhlis Kamal Muis Munti Yuhana Nefi Islamiati Nurlisa Butet, Nurlisa Rahmat Kurnia Ridwan Affandi RIDWAN AFFANDI Rika Astuti Rudi Alek Wahyudin Rudi Alek Wahyudin Yulia Fitrianingsih Yusli Wardiatno Yusli Wardiyatno Yuyun Qonita Yuyun Sri Wahyuni

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