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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology METANA Journal of Marine Research Jurnal Harpodon Borneo International Journal of Marine and Aquatic Resource Conservation and Co-existence Jurnal Kelautan Tropis Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Journal of Marine Research

Hadi Endrawati

Department Of Marine Science, Faculty Of Fisheries And Marine Science, Diponegoro University

Author-ID : 259823

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Library & Information Science Other

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Struktur Komunitas Copepoda di Perairan Jepara Hadi Endrawati; Muhammad Zainuri; Endang Kusdiyantini; Hermin P Kusumaningrum
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 12, No 4 (2007): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Copepoda merupakan komponen terbesar dari zooplankton di laut dan berperan sebagai produser sekunder serta konsumer. Berdasarkan perannya dalam jaring-jaring makanan, maka komunitas copepoda pada suatu perairan dapat digunakan untuk menilai produktivitas perairan. Penelitian ini bertujuan untuk mengetahui struktur komunitas copepoda di perairan Jepara. Penelitian ini dilaksanakan dari April hingga Desember 2005 di perairan Jepara dan identifikasi dilakukan di Laboratorium Biologi Oseanografi UNDIP. Enam stasiun untuk pengambilan sampel yang dilakukan sebulan sekali. Pengambilan sampel copepoda dilakukan dengan planktonnet 100 mm, dengan menyaring air sebanyak 1 m3 secara vertikal dari dasar perairan. Sampel yang diperoleh diawetkan dengan formalin 4% untuk diidentifikasi di laboratorium. Keanekaragam, keseragaman dan dominansi dianalisa untuk mengetahui struktur komunitas copepoda. Pengukuran parameter kualitas air yang meliputi suhu, salinitas pH, arus dan kecerahan dilakukan secara bersamaan dengan pengambilan sampel. HasiI penelitian di perairan Jepara terdapat3 ordodan 18 genus copepoda, yaitu Ordo Calanoida (13 genus), Cyclopoida (2 genus) dan Harpacticoida (3 genus). Kelimpahan copepoda di perairan Jepara sebesar 5 - 546 ind/l, dengan rata-rata 316 ± 85, keanekaragaman 2,3259-2,3594, keseragaman 0,80 - 0,81 dan terdapat dominansi Acartia sp dan Calanus sp. Kata kuncl: Copepoda, Struktur Populasi, Jepara The dominantion ofcopepod in the zooplankton community, play an important role as secondary producer and primary consumer in the sea food web. Due to this function, the copepod population can be use as the sea water productivity. The aim of the research is to know and copepod community structure at Jepara Waters. The research was conducted from April to December 2005 at the Jepara Wafers and the samples were identified at Laboratory of Biological Oceanography, UNDIP. There were six stations established as the research site area. Monthly sampling was done. Copepod were collected using the 100 mm plankton net, by filtering a total of 1 m3 sea water taken vertically. The samples were preserved by the addition of formaldehyde 4% and identified in the laboratory. The diversity, evenness and dominance index were calculated to describe the copepod community structure. The water quality such as temperature, salinity, pH, current and transparency, were observed in the same time. There were 18 genus of copepods determined at the Jepara waters, belong to 3 ordo i.e Calanoid (13 genus), Cydopoid (2 genus) and Harpacticoid (3 genus). Copepod density at Jepara water was 5-546 ind./l, (average 316 ± 85), diversity 2,3259-2,3594, eveness 0,8047-0,8163 and dominancy 0,1837-0,1953. Acartia sp and Calanus sp. were dominant in Jepara waters identified. Key words : Copepods, Population Structure, Jepara

Kelimpahan Fitoplankton di Padang Lamun Buatan (Artificial Seagrass Bed as Phytoplankton Habitat) Ita Riniatsih; Widianingsih Widianingsih; Sri Redjeki; Hadi Endrawati
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 18, No 2 (2013): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Padang lamun berperan penting dalam menjaga kelestarian berbagai jenis organism laut. Namun secara umum kondisi ekosistem lamun saat ini semakin menurun. Melalui pengembangan padang lamun buatan diharapkan dapat membantu mengembalikan fungsinya, termasuk pertumbuhan fitoplankton sebagai epifit pada salah satu orgasnime yang berasosiasi di dalamnya. Penelitian ini bertujuan untuk melihat keberhasilan penciptaan habitat fitoplankton di padang lamun buatan. Penelitian dilakukan dengan dua model lamun buatan yang terbuat dari tali kalas, tanaman plastik berbentuk semak, dan transplantasi lamun asli jenis Enhalus acoroides serta padang lamun asli sebagai control dengan empat kali ulangan. Fitoplankton yang diperoleh selama penelitian sebanyak 30 jenis. Jenis fitoplankton yang mendominansi semua perlakuan adalah kelas Bacillariophyceae yaitu genus Nitzschia, Coscinodiscus, Bidulphia, Rhizosolenia dan Skeletonema. Jumlah jenis dan kelimpahan fitoplankton yang tertangkap terlihat berbeda di setiap sampling pengamatan. Hingga akhir pengamatan jumlah jenis dan kelimpahan fitoplankton tidak terlihat perbedaan antara lamun buatan dan padang lamun asli. Indeks keanekaragaman dan keseragaman fitoplankton dalam kategori sedang pada ketiga perlakuan. Hasil penelitian menunjukkan bahwa padang lamun buatan sama efektifnya dengan padang lamun asli dalam menyediakan tempat untuk penempelan fitoplankton sebagai epifit serta meningkatkan produktivitas primer di ekosistem padang lamun. Kata kunci: habitat, fitoplankton, padang lamun buatan Seagrass bed is one of coastal area ecosystems, which has important role for various marine organisms. Artificial seagrass bed can create new habitat for phytoplankton as one of epiphyte organisms which is associated with others marine organisms. The purpose of this research is to know successful a phytoplankton growth in artificial seagrass bed at Teluk Awur Coastal area, Jepara.. There were three treatments in this research i.e. (a) artificial seagrass bed from kalas rope, (b) artificial seagrass made from plastic, (c) seagrass of Enhalus acoroides, and natural seagrass bed ecosystem as control, with 4 replications. Thirty phytoplankton species were found in that area. Several genera from class Bacillariophyceae dominanted at all treatments, i.e. Nitzschia, Coscinodiscus, Bidulphia, Rhizosolenia and Skeletonema. There were differences on the number of species and abundance of phytoplankton every time sampling. However, the number of species and abundance of phytoplankton were similar between artificial seagrass bed and natural seagrass bed at the end of this research. All treatments have medium category for diversity and evenness index. The results suggest that artificial seagrass bed is as effective as natural seagrass for location (medium) for phytoplankton habitat and for increasing primary productivity. Keywords : habitat, phytoplankton, artificial seagrass bed

Kajian Nutritif Phytoplankton Pakan Alami pada Sistem Kultivasi Massal Antik Erlina; Sri Amini; Hadi Endrawati; Muhamad Zainuri
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 9, No 4 (2004): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Potensi fitoplankton sebagai pakan alami bagi biota laut di derajat tropic diatasnya telah diketahui. Selanjutnya upaya kultivasi secara massal dilakukan untuk pemenuhan kebutuhan hatchery. Penelitian ini bertujuan untuk mengetahui nilai nutrisi pakan alami Skeletonema costatum, Thallassiosiera sp, Chlorella sp. dan Chaetoceros calcitrans dari hasil produksi kultivasi massal. Laboratorioum Alga Pakan Alami, Balai Besar Pengembangan Budidaya Air Payau Jepara. Isolate 5 ml dari setiap jenis fitoplankton digunakan sebagai sumber pada kultivasi dengan media gallon 20 liter selama 15 hari atau sampai dengan tercapainya puncak populasi. Transfer ke media 1 ton dilakukan setelah puncak populasi tersebut. Kedua jenis media memanfaatkan pupuk dari formula Conwy. Densitas fitoplankton diamati setiap hari dengan menggunakan haemocytometer. Setelah tercapai puncak populasi, maka fitoplankton akan dipanen dengan menyaringnya dengan 2 μm. Hasil panendigunakan untuk analisis nutrisi. Kandungan nutrisi fitoplankton menunjukkan kisaran nilai protein : 21.85 – 37 % ; lemak : 2.41 – 10 % dan karbohidrat : 17 – 21 %. Sedangkan asam lemak menunjukkan kisaran nilai yang cukup tinggi, khususnya pada omega 3 : 0.911 – 3.738 % ; omega 6 : 15.591 – 38.002 % dan omega 9 : 0.292–15.112 %. Nilai nutrisi tersebut tidak berbeda dengan kultivasi laboratoris.Kata kunci : Kandungan Nutritif, Alga, Skeletonema costatum, Thallassiosiera sp, Chlorella sp,. Chaetoceros calcitrans, Kultivasi Massal.The potential mean of the phytoplankton as natural feed for higher tropic level biota in the sea is already known. While the study to mass cultivation as the requirement for natural feed of marine biota larvae wasalready develop in the hatchery, and need to explore into mass cultivation for an alternative purpose. The aim of the study is to determine the nutrition contents of four type phytoplankton, Skeletonema costatum,Thallassiosiera sp, Chlorella sp. and Chaetoceros calcitrans based on mass cultivation. The research was conducted in the Laboratory of Natural Food, Brackishwater Aquaculture Development and Research Center,Jepara. The 5 ml isolate of each phytoplankton were cultivate in the 20 litter gallon for 15 days or until the reach of the density. After the peak density of every phytoplankton, it will transfer into 1 ton media. Eachtreatment was three replicate. Each approach using the enrichment media based on Conwy formula. The density was daily monitor using haemocytometer. After the reach of peak population density, the algae was filtered using 2 μm screen. The algae then store in the refrigerator for nutritive determination. The average nutritive content in the algae show a range value of protein : 21.85 – 37 % ; lipid : 2.41 – 10 % andcarbohydrate : 17 – 21 %. While the lipid acid show a high range value, especially for omega 3 : 0.911 – 3.738 % ; omega 6 : 15.591 – 38.002 % aand omega 9 : 0.292 – 15.112 %. The nutritive value is notdifferent than the one of laboratory cultivation.Key words : Nutritive Contents, Algae, Skeletonema costatum, Thallassiosiera sp, Chlorella sp,. Chaetoceros calcitrans, mass cultivation.

Kandungan Lipid Total Nannochloropsis oculata Pada Kultur dengan Berbagai Fotoperiod (Total Lipid Content of Culture of Nannochloropsis oculata at Different Photoperiod) Widianingsih Widianingsih; Retno Hartati; Endrawati Hadi; Valentina R Iriani
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 17, No 3 (2012): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Fotoperiod memainkan peranan penting dalam proses fotosintesis pada mikroalga Nannochloropsis oculata. Fotoperiod akan mempengaruhi kadar total lipid pada berbagai jenis mikroalga. Penelitian ini bertujuan untuk determinasi kandungan lipid total mikroalga Nannochloropsis oculata yang dikultur pada berbagai kondisi fotoperiod Rancangan acak lengkap dengan tiga ulangan diterapkan pada penelitian ini. Perlakuan pada penelitian ini adalah fotoperiod 4 jam terang-20 jam gelap, 8 jam terang-16 jam gelap, 12 jam terang-12 jam gelap, dan 24 jam terang. N. oculata dikultur pada erlenmeyer 250 mL dengan sistem aerasi kontinyu dan pencahayaan 3000 lux, salinitas 33 ppt dan medium Conway. Hasil penelitian menunjukkan bahwa kandungan lipid total pada N. oculata tertinggi ditemukan pada perlakuan fotoperiod 12 jam terang-12 jam gelap) (31,8±3,03%-dw) dan kemudian diikuti pada fotoperiod 8jam terang - 16 jam gelap (25,2±2,19%-dw) dan fotoperiod 24 jam terang (23,2 %-dw). Pada perlakuan fotoperiod 8 jam terang-16 jam gelap dan fotoperiod 12 jam terang-12 jam gelap pada media pemeliharaan N.oculata menunjukkan hasil kadar lipid total yang lebih besar pada fase stasioner dibandingkan dengan eksponensial.Kata kunci: Nannochloropsis oculata, total lipid, fotoperiodPhotoperiod has important role on the photosynthesis process of microalgae Nannochloropsis oculata. Photoperiod also influences on total lipid content of various microalgae. This research has purpose to examine the effect of nutrient phosphate and nitrate composition to the total lipid content of N. oculata belong to class Eustigmatophyceae. There were four treatments of photoperiod as follows; (a) photoperiod A (4:20 hour light:dark);(b) photoperiod B (8:16 hour light:dark); photoperiod C (12:12 hour light:dark); (and (d) photoperiod D (24 hour light). There were three replicates for each treatment. The volume of culture medium was 250 mL for each treatment with continuously aeration and illumination (3000 lux). According to the research, the highest total lipid content of N. oculata had been found on the treatment of photoperiod 12:12 hour light:dark 31,8 ± 3,03 %-dw, and then followed by photoperiod 8:16 hour light dark as amount 25,2 ± 2,19 %-dw and 24 hour light (23,2 ± 1,99%-dw), and then followed by photoperiod 24 hour light. Differences of photoperiod 8:16 hour light:dark and photoperiod 12:12 hour light:dark on culture medium of N. oculata showed result that there were differences of total lipid content on the stationary and exponential phase. The highest percentage of total lipid was fund in cell of N. oculata grown under treatment of photoperiod 12:12 hour light:dark. The treatment of photoperiod 8:16 hour light:dark and 12:12 hour light:dark in the N. oculata culture showed result that the total lipid content on stationary phase was greater than exponential phase.Key words: Nannochloropsis oculata, total lipid, photoperiod

Asexual Reproduction of Black Sea Cucumber from Jepara Waters Retno Hartati; Muhammad Zainuri; Ambariyanto Ambariyanto; Sri Redjeki; Ita Riniatsih; Ria Azizah; Hadi Endrawati
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 24, No 3 (2019): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Black sea cucumber or Lollyfish are trade name for Holothuria atra, one species of family Holothuriidae abundance in Jepara waters, especially in Panjang Island. They inhabit on the seabed, in shallow waters on reefs and sand flats or in Seagrass meadows. Beside reproduce sexually, H. atra also do fission (biology), i.e. able to reproduce asexually by transverse fission. Monthly survey has been conducted for three months to determine frequency of fission among H. atra population in Panjang Island waters. In total 891 individu of H. atra inhabit in seagrass meadow mixed with rubble were examimed. In fissiparous sea cucumber, transverse fission are followed by regeneration and in this research identified from external observations. The fission state was divided into three category, i.e. closed wound (Category 1), little regeneration either posterior or anterior part (category 2), moderate regeneration either posterior or anterior part (category 3). The result showed that the fission frequency was highest during end of rainy season in April (13,21%) and decreased during May (4,61%) and June (4,86%). Body regeneration seem happened fast, since the new individu sea cucumber at category 1 was low but high as category 3. The regeneration were related with the condition of environment.

Komunitas Ikan di Perairan Kawasan Pulau Parang, Kepulauan Karimunjawa, Jepara (Fish Community at Parang Waters of Karimunjawa Island) Rudhi Pribadi; Hadi Endrawati; Ibnu Pratikto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 18, No 1 (2013): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Kawasan mangrove merupakan salah satu habitat ikan yang penting. Penelitian ini bertujuan untuk mengidentifikasi ikan di kawasan perairan bervegetasi mangrove Pulau Parang, Kepulauan Karimunjawa. Pengambilan contoh ikan dilakukan dengan gillnet sedangkan juvenil ikan diambil menggunakan Bonggo net dengan menyisir kolom perairan secara horizontal menggunakan perahu selama 10-15 menit pada kecepatan ±2 knot pada waktu pagi hari. Sampel ikan diawetkan dengan formalin 10% dan di laboratorium diganti dengan alkohol 70% untuk pengawetan yang lebih lama selanjutnya diidentifikasi. Kepadatan populasi ikan dihitung per stasiun dari seluruh contoh yang diamati. Contoh air diambil menggunakan water sampler, dan beberapa parameter perairan (suhu udara, suhu air, kedalaman, kecerahan, pH, DO) diukur secara langsung. Penelitian ini menemukan 7 spesies juvenil ikan di perairan bervegetasi mangrove Pulau Parang, yaitu Apogon ceramensis, Sphaeramia orbicularis, Hypoatherina barnesi, Zenarchopterus dispar, Zenarchopterus gilli, Gerres argyreus, dan Lethrinus lentjan yang termasuk dalam 5 famili, yaitu Apogonidae, Atherinidae, Hemiramphidae, Gerreidae, dan Lethrinidae. Pada saat bulan Juni ditemukan lebih sedikit jenis ikan dan jumlah individu juvenil ikan dibandingkan sampling bulan September 2012. Lebih banyak juvenil ini dimungkinkan adanya rekruitmen di daerah mangrove tersebut. Selama penelitian paling sedikit ditemukan 28 jenis ikan di perairan Pulau Parang yang terdiri dari 15 famili. Terdapat banyak perbedaan individu pada lokasi yang sama yaitu stasiun Batu Merah pada dua kali sampling. Hal ini menandakan daerah tersebut sebagai tempat mencari makan bagi ikan. Kata kunci: ikan, mangrove, Pulau Parang, Kepulauan Karimunjawa Mangrove ecosystem is recognised as essential habitat for many species of fishes. The study was aimed to identify community structure of mangrove fishes of Parang Island, Karimunjawa Islands. Adult fish was trapped using gillnet, while its juvenile collected using a larva-net tow horizontally by small boat for 10-15 minutes of 2knot speed along the mangrove waters in the morning. Sample was initially preserved in 10% formaldehyde then in 70% alcohol prior to further identification. Fish abundance was estimated on each station, and ambient parameter (water and air temperature, water depth, clarity, pH and DO) was measured insitu. The result shown that at least 7 species of fishes were found in Parang Island i.e.: Apogon ceramensis, Sphaeramia orbicularis, Hypoatherina barnesi, Zenarchopterus dispar, Zenarchopterus gilli, Gerres argyreus, and Lethrinus lentjan which taxonomically belongs to 5 families i.e.; Apogonidae, Atherinidae, Hemiramphidae, Gerreidae, and Lethrinidae. Less species was found in June rather in September sampling period, which possibly indicating of fish recruitmen on that mangrove ecosystem. In total 28 fish species of 15 families were found across all study sites in Parang Island and its surrounding waters. Species diversity among different sampling time, such as in Batu Merah Station, was also varied which possibly indicating that the site is feeding ground for many species in the area. Keywords: fish, mangrove, Parang Island, Karimunjawa Islands

Co-Authors AB Susanto Abdino Putra Utama Adi Santoso Agus Subagio Altysia Putriany Ambariyanto Ambariyanto Anantya Setya Perdana Andreas Nur Hidayat Anindya Wirasatriya Annisa Fadillah Antik Erlina Antonius Budi Susanto Ardhatama Zafron Dzakwan Ardita Elok Mahendra Putri Ardyatma, Via Jeanieta Berliana Argina Dewi S Azhari Nourma Dewi Baidhowie, Lutfil Hakim Bifa Aulia Manuhuwa Budhy Wiyarsih Cantik Sitta Devayani Cantika Elistyowati Andanar Chandra Nicolas Sihaloho Christian Jimmy Christin Manulang Cristiana Manullang Cristiana Manullang Delianis Pringgenies Desy Lasri Ana Dewi Nugrayani Dinda Monita Dwi Saniscara Wati Dyahruri Sanjayasari Dyahruri Sanjayasari Endang Kusdiyantini Endang Supriyantini Evi Lutfiyani Fadhel Muhammad Juharna Febrianto, Sigit Febriyantoro Febriyantoro Frijona Fabiola Lokollo Gunawan Widi Santosa Handhikka Daffa Wira Pradhana Hermin P Kusumaningrum Hermin Pancasakti Kusumaningrum Hilal M Hilyati Fajrina Ibnu Pratikto Ida Noventalia Ida Noventalia Imam Misbach Indras Marhaendrajaya Ira Kolaya, Ira Irwani Irwani Ita Riniatsih Ita Widowati Ivan Riza Maulana Julia Fransiska Ken Suwartimah Kiki Pebli Ningrum Lutfil Hakim Baidhowie M. Amanun Tharieq Manuhuwa, Bifa Aulia Maulana Cahya Widhiatmoko Monita, Dinda Muhamad Ravian Wiraputra Muhammad Iskandar Zulkarnain Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Muhammad Zainuri Ningrum, Kiki Pebli Nirwani Soenardjo Nugrayani, Dewi Nur Taufiq Nur Taufiq Nur Taufiq SPJ Nur Taufiq-Spj Nurul Latifah Octo Zainul Ahmad Perdana, Anantya Setya Pradhana, Handhikka Daffa Wira Primaswatantri Permata Putri Sakinah Mayani, Putri Sakinah Putri, Ardita Elok Mahendra Raden Ario Raka Pramulo Sophianto Rana Hadi Shafani Ranny Ramadhani Yuneni Retno Hartati Ria Azizah Ria Azizah Ria Azizah Ria Azizah Tri Nuraini Robertus Triaji Mahendrajaya Robertus Triaji Mahendrajaya Rodhiyah Patmawati Rose Dewi Rose Dewi Rose Dewi Rudhi Pribadi Sihaloho, Chandra Nicolas Sophianto, Raka Pramulo Sri Amini Sri Redjeki Sri Redjeki Sri Sedjati Sri Sedjati Sunaryo Sunaryo Sunaryo Sunaryo Suryanti - Suryono Suryono Susilo Dwi Cahyanti, Susilo Dwi Sutrisno Anggoro Taufiq-Spj, Nur Theresia Claudia Lasmarito Tiara Finishia, Tiara Titik Mariyati Tjahjo Winanto Utama, Abdino Putra Valentina R Iriani Via Jeanieta Berliana Ardyatma W.L. Saputra Widhiatmoko, Maulana Cahya Widianingsih Widianingsih Widianingsih Widianingsih Widya Paramudhita Wiraputra, Muhamad Ravian Yopie Anggara Putra, Yopie Anggara Yuniar Andri Sulistiyanto Yuniar Andri Sulistiyanto Yuvita Muliastuti

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