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INDONESIA
Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Published by Masyarakat Iktiologi Indonesia
ISSN : 16930339     EISSN : 25798634     DOI : https://doi.org/10.32491
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Aims and Scope Aims: Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) aims to publish original research results on fishes (pisces) in fresh, brackish and sea waters including biology, physiology, and ecology, and their application in the fields of fishing, aquaculture, fisheries management, and conservation. Scope: This journal publishes high-quality articles dedicated to all aspects Aquaculture, Fish biodiversity, Fisheries management, Fish diseases, Fishery biotecnology, Moleculer genetics, Fish health management, Fish biodiversity.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 420 Documents
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KEBIASAAN MAKANAN DAN FAKTOR KONDISII KAN KURISI, Nemipterus tambuloides Blkr. DI PERAIRAN TELUK LABUAN, BANTEN [Food Habits and Condition Factor of Fiveline Threadfin Bream, Nemipterus tambuloides Blkr. in Labuan Bay, Banten] Djadja S. Sjafei; Robiyani Robiyani
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.150

Abstract

The research was conducted in Labuan Bay, Banten from April - June 1999. The fish sample was collected once in every five days. The total fish collected were 483 with 75 - 265 mm of total length and 4.85 - 169.81 grams in weight. Sexual composition was 252 male, 183 female, and 48 of the ambiguous sex. The fish sample was divided into 4 groups of total length (small, medium, and extra large). The medium size was 124 -171 mm) was the most number of the sample (248). According to length weight relationship the growth pattern of the fish was negative allometric. Condition factor of the fish was increased from small to medium size. While the biggest size (extra large) the condition as decreased. This phenomenon maybe because a lot of their gonad were in atresia, A lot of the condition of food material was destructed and impossible to be identified. The female primarily consumed shrimp and squilla. The male feed on shrimp, crab, and fish. According to the time-series of sampling the shrimp had primer index, and the second crab, the third was fish.ABSTRAKPola pertumbuhan ikan kurisi termasuk allometrik negatip. Faktor kondisi kian besar dengan semakin panjang ukuran ikan Ikan kurisi termasuk kedalam kelompok karnivor, dengan makanan utamanya udang. Ikan betina mengkonsumsi terutama udang dan squilla, sedangkan ikan jantan mengkonsumsi udang, kepiting, dan ikan. Tidak ada perubahan jenis maupun IP makanan ikan kurisi berdasarkan waktu. Semakin panjang ukurannya, ikan kurisi semakin mengkonsumsi ikan sebagai makanannya.
BEBERAPAASPEK BIOLOGIIKAN PETEK, Leiognathus splendens CUVIER DIPERAIRAN TELUK LABUAN, B ANTEN [Some biological aspects of splendid ponyfish Leiognathus splendens Cuvier in Labuan Bay, Banten] Djadja S. Sjafei; Saadah Saadah
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.151

Abstract

The research was conducted in Labuan bay of Banten Province from Avril - June 1999. The numbers offish collected were 747 (539 male and 208 female). The lengths ot male were 49- 145 m with 1.69-51.36 grams in weight, while the female had ranged 49- 161 mm in length and 1.84 - 57.88 gram in weight. The length of the male was primarily in size 73 - 84 mm, the female in 121 - 132 mm. Based on length weight relationship the fish was isometric. Condition factor of the male ranged 0.447 - 2.752, and 0.589 - 2.285 of the female The stomach dominated by undetermined materials. The fish food was dominated by Baccilariophyceae (15 genera the most was Synedra). The secondary group were Pleurosigma, Nitssliia, and ThaUasiotrix. Other foods were Desmidiaceae, Chlorophyceae, Dynophyceae. Copepoda, Ciliata and Sarcodina. Maturity stage of the male ranged between I - IV (dominated by stage I). Maturity stage of the female were ranged between I - V and dominated by stage IV. The gonado somatic index of male ranged between 0.45 - 2.13, while of female between 0.35 - 2.45.ABSTRAKPenelitian dilaksanakan di Teluk Labuan, Banten dari bulan April - Juni 1999. jumlah ikan yang dikoleksi 747 ekor (539 jantan dan 2008 betina). Ukuran panjang ikan antara 49 - 145 mm, dengan berat antara 1,69 - 51, 6 gram. Ikan betina berkisar antara 49-161 mm dan berat 1,84 - 57,88 gram. Ikan jantan terutama banyak pada ukuran 73 - 84 mm. betina pada 121 - 132 mm. Berdasarkan huhungan panjang berat pertumbuhan ikan bersifat isometnk. Faktor kondisi jantan 0,497 - 2,752; betina 0,589 - 2,285. Isi perut didominasi oleh materi yang tidak teridentifikasi. Makanan didominasi oleh Baccilariophyceae (15 genera tterutama Synedra), yang berikutnya Pleurosigma, Nitschia, dan ThaUasiotrix. Yang Iain adalah Desmidiaceae, Chlorophyceae, Dynophyceae, Copepoda, Ciliata, dan Sarcodina. Tingkat kematangan gonad jantan berkisar I - IV (didominasi oleh stadia I). Tingkat kematangan gonad betina berkisar antara I — V yang didominasi oleh stadia IV, Indeks kematangan gonad pada jantan berkisar 0,45 - 2,13; pada betina antara.0,35 - 2,45.
BIODIVERSITAS I KAN DI DAS MENDALAM, TAMAN NASIONAL BETUNG KERIHUN KALIMANTAN BARAT [Freshwater Fishes of Mendalam River System, Betung Kerihun Np, West Kalimantan] Ike Rachmatika
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.152

Abstract

The ichthyological study was conducted in Mendalam river system on 6 May to 24 May 1998 in Mendalam River and 21 its tributaries, a sub river system of Kapuas River Basin. These were included in 44 sampling stations. This work conducted in conjunction with the establishment and management of Betung Kerihun National Park collected 69 fishes species. These belong to 12 familia, 39 genera and 5 ordo. The most common fishes were those belonging to Cyprinidae (47.88%), Balitoridae (14.08%) dan Cobitidae (12,67%). At least eleven species endemic to Borneo were found. They are Garra borneensis, Grynocheihisptistulosus, Hampala bimaculata, Homaloptera stephensoni, Neogastrotnvzon niewenliitisi, N. pauciradiatus, Osphronemus septemfasciatus, Paracrossocliilus acerus, Rasbora vo/lzi, Acrochordonichthys chameleon, and Gastromyzon embalohensis. Most of the fishes found constitute ornamental and consummed fishes, which are economically important. ABSTRAKPengamatan fauna ikan di Daerah Aliran Sungai (DAS) Mendalam telah dilakukan selama 18 hari (dari tanggal 6 Mei sampai tanggal 24 Mei 1998) di DAS Mendalam dan 21 anak sungainya yang merupakan salah satu sub DAS Kapuas. Dari 44 stasiun pencuplikan ditemukan sebanyak 69 jenis ikan yang terdiri atas 12 familia, 39 genera dan 5 ordo berhasil dikoleksi. Jenis-jenis tersebut tergolong kedalam ft mil i Cyprinidae (47,88%), Balitoridae (14,08%) dan Cobitidae (12,67%). Sekurang-kurangnya 11 jenis ikan yang tergolong endemik Kalimantan ditemukan yaitu Garra borneensis; Grynocheilus pustulosus, Hampala bimaculata, Homaloptera stephensoni, Neogastromyzon niewenhuisii, N. pauciradiatus, Osphronemus septemfasciatus, Parachrossochilus acerus, Razor voltzi, Acrochordonichthys chameleon, dan Gastromyzon embalohensis. Sebagian besar ikan di kawasan ini merupakan ikan hias dan konsumsi yang bernilai ekonomis.
PENGAMATANISILAMBUNG BEBERAPA JENISIKAN BUNTAL ('Tetraodon reticularis, T. fluviatilis, I lunaris) DI PERAIRAN UJUNG PANGKAH, JAWA TIMUR [Study on the Stomach Contents of Some Puffer Fishes (Tetraodon reticularis, T. fluviatilis, T. lunaris) in Ujung Pangkah Waters, East Java] Sulistiono Sulistiono; Delismawati Lubis; Ridwan Affandi; Seiichi Watanabe
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.153

Abstract

Study on the stomach contents of some puffer fishes (Tetraodon reticularis, T. fluviatilis, T. lunaris) was done from March 2000 to April 2001 in Ujung Pangkah Waters, East Java. Samples were collected monthly using gill net mesh sized of 2.5 and 4.5 cm. Stomach content was preserved by formalin 10% and observed under microscope (50 magnification). Analysis was carried out to estimate Index of Stomach content (ISC) and Index of Preponderance (IP). The result showed that main food of male Tetraodon reticularis was Balamis sp.. suplemen food was bivalva and debris, and additional food, gastropods and crab. While main food of female fish was Balamis sp., suplemen food w'as debris and bivalve, and additional food was shrimp, crab, and gastropoda. Main food of male T. fluviatilis was Balamis sp., suplemen food was gastropoda, additional food was shrimp, bivalve, fish and green mussel. While for female fish, the main food was Balamis sp., suplemen food was bivalve and shrimp, and additional food was gastropoda, crab, fish and bivalve. Main food of male T. lunaris was fish, suplemen food was bivalve, shrimp and gastropoda, and additional food was Balanus sp., crab, green mussel and unidentified organisms. While main food of female fish was fish, suplemen food was shrimp and bivalva, and additional food was Balanus sp., crab, gastropoda and unidentified organisms. The ISC seems on August (male) and September (female) for T. reticulates, on April (male) and May (female) for T. fluviatilis, and on April (male) and December (female) for T. lunaris. ABSTRAKPengamatan terhadap isi lambung beberapa jenis ikan buntal (Tetraodon reticularis, T. fluviatilis, T. lunaris) dilakukan sejak Maret 2000 sampai April 2001 di perairan Ujung Pangkah, Jawa Timur. Sampel ikan ditangkap per bulan dengan menggunakan gill net (mata jaring 2,5 dan 4,5 cm). Isi lambung diawet dengan formalin dan diamati di laboratorium. Analisis dilakukan untuk menentukan indeks isi lambung (ISC) dan indeks bagian terbesar (IP). Hasil pengamatan didapatkan bahwa jenis Tetraodon reticularis jantan memiliki makanan utama berupa Balanus sp., makanan pelengkap berupa bivalva, serasah, dan an makanan tambahan berupa ikan, gastropoda dan kepiting. Sedangkan untuk ikan betina, makanan utama berupa Balanus sp., makanan pelengkap berupa serasah dan bivalve, dan makanan tambahan berupa udang, kepiting dan gastropoda. T. fluviatilis jantan memiliki makanan utama berupa Balanus sp., makanan pelengkap berupa gastropoda, makanan tambahan berupa udang, bivalve dan ikan. Sedangkan untuk ikan betina makanan utamanya berupa Balanus sp., makanan tambahan berupa bivalve dan udang, dan makanan pelengkap berupa gastropoda, kepiting, ikan dan bivalve. T. lunaris jantan makanan utamanya berupa ikan, makanan pelengkap berupa bivalve, udang dan gastropoda, dan makanan tambahannya berupa Balanus sp., kepiting, bivalve dan organisme tak teridentifikasi. Sedangkan untuk jenis ikan betina memiliki makanan utama berupa ikan, makanan pelengkap berupa udarrg dan bivalve, dan makanan tambahannya berupa Balamis sp., kepiting, gastropoda dan organisma tak teridentifikasi. T. reticulates terlihat memiliki ISC yang lebih tinggi pada bulan Agustus (Jantan) dan September (betina), T. fluviatilis pada bulan April (jantan) dan Mei (betina), dan T. lunaris pada bulan April (jantan) dan Desember (betina).
BEBERAPAASPEK BIOLOGIIKAN BIJINANGKA Upeneus moluccensis Blkr. DIPERAIRAN TELUK LABUAN, BANTEN [Some Biological Aspects of Goldband Goatfish, Upeneus moluccensis Blkr. in Labuan Bay, Banten] Djadja S. Sjafei; Ratna Susilawati
Jurnal Iktiologi Indonesia Vol 1 No 1 (2001): Juni 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i1.154

Abstract

The research was conducted in Labuan Bay Banten from April to June 1999. The number offish were 282, 120 males and 212 females. The sex ratio was 1: 1, 25. The samples were dominated by fish of length 90 - 170 mm. The fish mature gonad of the male was predicted at 120 mm and the female was 125 mm in length. Their fecundity ranged BETWEEN 19.116 - 89.344 according to distribution. According to distribution of egg diameter, the fish was total spawner. The fish growth was isometric and it was carnivore which fish and shrimp as main food. ABSTRAKPenelitian dilakukan di teluk Banten dari bulan April-Juni 1999. Ikan yang diamati berjumlah 382 ekor yang terdiri atas 170 ekor jantan dan 212 ekor betina. Komposisi jumlah ikan jantan dan betina menunjukkan rasio kelamin yang tidak seimbang. Ikan dengan panjang 99 -170 mm mendominasi hasil tangkapan. Ikan jantan diduga pertama kali matang gonad pada ukuran 120 mm dan ikan betina pada ukuran panjang 125 mm. Fekunditas ikan biji nangka berkisar antara 19.116-89.344 butir. Ikan mempunyai sifat pemijahan total. Pertumbuhan ikan bersifat isometrik. Ikan ini termasuk karnivor dengan makanan utama udang dan ikan.
Aspek reproduksi ikan banyar, Rastrelliger kanagurta (Cuv. 1817) di perairan utara Aceh [Reproductive aspect of indian mackerel Rastrelliger kanagurta (Cuv. 1817) of northern Aceh waters] Tuti Hariati; Moh. Fauzi
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.155

Abstract

The research aims was to reveal information on biology reproduction of Indian mackerel caught in the waters of northern Aceh (part of the Strait of Malacca). Sampling was carried out at two locations, namely in the Port Fishery Coast (PPP) Lampulo, Banda Aceh and in the PPP Idi Rayeuk. Fish were sampled at PPP which originating from northern waters of Lampulo Banda Aceh in March, June and November 2009, while the fish samples from the PPP Idi Rayeuk caught from east of Sabang/Weh Island waters in March and June 2009. Number of samples taken at each sampling ranged from 40 to 60 fish with the smallest of forked length (FL) was 14 cm. Biological aspects of fish that were observed included forked length, weight, sex, gonad maturity (TKG), gonad weight, fecundity, and egg diameter. The results showed that the first maturity size (Lm) of Indian mackerel female in the waters of northern Aceh was 19.97 cm (FL), fecundity ranged from 300,000 to 520,000 eggs and fish egg diameters ranged from 144 to 588 ^m. AbstrakPenelitian ini bertujuan mengungkap informasi reproduksi ikan banyar yang tertangkap di perairan utara Aceh (laut dalam, bagian dari Selat Malaka). Pengambilan ikan contoh dilakukan di dua lokasi, yaitu di Pelabuhan Perikanan Pantai (PPP) Lampulo, Banda Aceh dan PPP Idi Rayeuk. Ikan contoh yang disampling dari PPP Lampulo berasal dari perairan utara Banda Aceh pada bulan Maret, Juni dan November 2009; sementara ikan contoh dari PPP Idi Rayeuk tertangkap dari perairan timur laut Sabang/Pulau Weh pada bulan Maret dan Juni 2009. Jumlah ikan contoh yang diambil di setiap pengambilan contoh berkisar antara 40-60 ekor ikan dengan panjang cagak (FL) terkecil 14 cm. Aspek biologi ikan yang diamati meliputi panjang tubuh, bobot, jenis kelamin, tingkat kematangan gonad (TKG), bobot gonad, fekunditas dan diamter telur. Hasil penelitian menunjukkan bahwa ukuran pertama kali matang gonad (Lm) ikan banyar betina di perairan utara Aceh sebesar 19,97 cm (FL), fekunditas sebesar 300,000-520,000 butir telur dan diameter telur ikan berkisar antara 144-588 ^m.
Reproduksi ikan rejung (Sillago sihama Forsskal) di perairan Mayangan, Subang, Jawa Barat [Reproduction of silver sillago (Sillago sihama Forsskal) in Mayangan Waters, West Java] Sulistiono Sulistiono
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.156

Abstract

This study aims to investigate reproduction of silver sillago (Sillago sihama). Samples were collected from April to December 2003 from fish caught by fishermen using beach seine, gill net, and trap net in Mayangan Waters. Analysis was done to estimate gonad maturity, gonado somatic index, fecundity, and oocyte diameter. Silver sillago was 554 individual consisted of 252 male and 302 female fish varied 65-234 mm in total body length. Sex ratio was around 1:1.19 (“chi-square” analysis a=0.05). First maturity gonad of male and female fish was 129-234 mm. According to gonad maturity stage and gonado somatic index, fish was estimated to spawn from April to December with a peak one during December. Fecundity was 26,400-283,500 eggs and oocyte diameter was 10-809 ^m. Based on oocyte distribution, the fish was estimated a partial spawner. AbstrakPenelitian ini bertujuan untuk menganalisis beberapa aspek reproduksi ikan rejung (Sillago sihama). Pengambilan ikan contoh dilakukan pada bulan April sampai Desember 2003. Ikan contoh diperoleh dari hasil tangkapan nelayan dengan menggunakan pukat pantai, jaring rampus, dan jaring kantong di perairan Mayangan. Analisis dilakukan terhadap kematangan gonad, indeks kematangan gonad, fekunditas, dan diameter telur. Ikan rejung yang diperoleh selama penelitian berjumlah 554 ekor yang terdiri atas 252 ekor ikan jantan dan 302 ekor ikan betina dengan kisaran panjang total 65-234 mm. Nisbah kelamin selama penelitian diperoleh 1:1,19 (uji “chi-square” pada taraf nyata 0,05). Ikan rejung jantan dan betina pertama kali matang gonad pada selang panjang 129-144 mm. Berdasarkan nilai tingkat kematangan gonad dan indeks kematangan gonad, diduga ikan rejung memijah pada bulan April sampai Desember dengan puncak pemijahan pada bulan Desember. Fekunditas ikan rejung berkisar 26.400-283.500 butir telur, dan diameter telur berkisar 10-809 ^m. Berdasarkan distribusi telur, ikan rejung diduga termasuk tipe pemijah bertahap.
Efektivitas pemberian zeolit, arang aktif, dan minyak cengkeh terhadap hormon kortisol dan gambaran darah benih ikan patin Pangasionodon hyppophthalmus pada pengangkutan dengan kepadatan tinggi [Effectivity of utilization of zeolite, activated charcoal, and clove oil to cortisol hormone on the high density transportation system of juvenile of Pangasionodon hyppophthalmus] Eddy Supriyono; Ruspindo Syahputra; M. Faisol Riza Ghozali; Dinamella Wahjuningrum; Kukuh Nirmala; Anang Hari Kristanto
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.157

Abstract

This study was aimed to determine the effect of combination of zeolite, activated charcoal and clove oil for maintaining water quality in the transport medium of the fish, so as to minimize the stress level which can be known through determination of cortisole hormone level and blood characteriestic of the fish and also to minimize mortality rate of the fish . The study was conducted with a completely randomized design. The fish used was juvenile iridescent shark catfish with an average weight of 2 g / fish. Dose zeolite, activated charcoal and salt were used that B (20 g zeolite + 10 g activated carbon), C (20 g zeolite + 10 g activated charcoal + 3 ppm clove oil), D (20 g zeolite + 10 g activated charcoal + 6 ppm clove oil), E (20g zeolite + 10 g activated charcoal + 9 ppm clove oil), F (20 g zeolite + 10 g activated charcoal + 12 ppm clove oil), and A(without zeolite, activated charcoal and oil cloves). The results showed the combination of 20 g zeolite + 10 g activated charcoal + 9 ppm clove oil in the sealed-transporatation system for 72 hours gave the best results, by reaching of the lowest levels of NH3 0.0389±0.004 mgl-1, CO2 50.42 mgl-1, highest survivale rate of 83.11% and had lower stress levels that presented by hormone cortisol level and blood characteristics as close to the normal fish. AbstrakPenelitian ini bertujuan untuk menentukan pengaruh pemberian zeolit, arang aktif dan minyak cengkeh dalam memper-tahankan kualitas air media pada pengangkutan ikan berkepadatan tinggi , sehingga dapat meminimalisasi tingkat stres yang dapat diketahui dari tingkat konsentrasi hormon kortisol dan gambaran darah ikan dan dapat meminimalisasi ting-kat kematian ikan. Penelitian dilakukan pada skala laboratorium dengan Rancangan Acak Lengkap. Ikan yang diguna-kan yaitu ikan patin dengan bobot rata-rata 2 g/ekor. Dosis zeolit, arang aktif dan garam yang digunakan yaitu B (20 g zeolit + 10 g arang aktif), C (20 g zeolit + 10 g arang aktif + 3 ppm minyak cengkeh), D (20 g zeolit + 10 g arang aktif + 6 ppm minyak cengkeh), E (20 g zeolit + 10 g arang aktif + 9 ppm minyak cengkeh), F (20 g zeolit + 10 g arang aktif + 12 ppm minyak cengkeh), dan A (tanpa zeolit, arang aktif dan minyak cengkeh). Hasil penelitian menunjukkan pem-berian 20 g zeolit + 10 g arang aktif + 9 ppm minyak cengkeh dalam pengepakan sistem tertutup selama 72 jam mem-berikan hasil terbaik, yaitu, kadar NH3 terendah mencapai 0,0389±0,004 mgl-1, CO2 50,42 mgl-1, SR tertinggi sebesar 83,11% dan memiliki tingkat stres yang lebih rendah baik dilihat dari konsentrasi hormon kortisol terendah dan gambaran darah mendekati ikan normal.
Iktiofauna ekosistem estuari Mayangan, Jawa Barat [Ichthyofauna of Mayangan estuary, West Java] Ahmad Zahid; Charles P.H. Simanjuntak; M. F. Rahardjo; Sulistiono Sulistiono
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.158

Abstract

Estuaries areas are the complex ecosystem and provide habitat for aquatic organisms, particularly for fishes. A study was conducted to determine fish species diversity in Mayangan estuary, from December 2010 to May 2011. Sampling was conducted in the three zones, namely marine coastal, river mouth, and mangrove creek. Fish specimens were collected by gill net, trammel net, beach seine, and mini trawl. A total of 2,854 fishes consisted of 46 families and 105 species, and the most collected group of fish was Carangidae. Based on occupied habitat, the richest number of species was found in the marine coastal (61), followed by the river mouth (16), and mangrove creeks (1). Typically marine-estuarine and estuarine-freshwater forms were represented by 15 and 12 species, respectively. The presence of fish larvae and juvenile in species composition indicated that Mayangan estuary has the function as habitat for feeding, spawning, refuge, and nursery. AbstrakEstuari adalah ekosistem yang kompleks dan menyediakan habitat bagi beragam biota akuatik, khsususnya ikan. Penelitian dilakukan pada bulan Desember 2010 hingga Mei 2011 untuk menentukan keragaman spesies ikan di estuari Mayangan. Pengambilan contoh dilakukan di tiga zona, yaitu pantai terbuka, muara sungai, dan alur sungai berhutan mangrove (anak sungai). Spesimen ikan dikumpulkan dengan jaring rampus dan jaring blama (gill net), jaring belanak (trammel net), krakat (beach seine), dan jaring arad (mini trawl). Ikan yang terkumpul sebanyak 2.854 ekor yang terdiri atas 46 famili dan 105 spesies, dan famili dominan adalah Carangidae. Berdasarkan habitat yang didiami, spesies terbanyak ditemukan di pantai terbuka sebanyak 61 spesies, 16 spesies ditemukan di mulut sungai, 1 spesies di alur sungai berhutan mangrove. Ikan bertipe habitat di pantai terbuka dan muara sungai berjumlah 15 spesies, sedangkan di muara sungai dan anak sungai diwakili oleh 12 spesies. Keberadaan larva dan juwana ikan di estuari Mayangan sebagai bagian dari komposisi spesies menunjukkan peran fungsional estuari sebagai daerah pemijahan, pembesaran, perlindungan, dan lumbung makanan.
Oxydative desulfuration of [14C]-fenitrothion by liver microsomes of some species of fishes [Oksidasi desulfurasi [14C]-fenitrothion pada mikrosom liver dari beberapa spesies ikan] Djamartumpal F. Lumban Batu
Jurnal Iktiologi Indonesia Vol 11 No 1 (2011): Juni 2011
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v11i1.159

Abstract

A study was made of the oxydative desulfuration of [14C]-fenitrothion by liver microsomes of some species of fishes. The preliminary research had been carried out to obtain the optimal condition of fenitrothion assay of the liver microsomes of every test spesies, including : pH, temperature, pre incubation time, incubation time, trypsin inhibitor, NADH and NADPH effect. The hepatic microsomes of treated and control were subjected to fenitrothion oxydative desulfuration assay, protein and cytochrome P-450 content and another enzyme activities. AbstrakSuatu studi telah dilakukan tentang oksidasi desulfurasi dari [14C]-fenitrothion yang berlangsung pada mikrosom liver dari beberapa spesies ikan. Penelitian pendahuluan telah dilakukan untuk mengetahui kondisi optimum pada suatu uji fenitrothion yang berlangsung pada liver dari spesies uji meliputi beberapa parameter seperti: pH, suhu, waktu pra-inkubasi, waktu inkubasi, inhibitor tripsin, serta pengaruh dari NADH dan NADPH. Mikrosom liver dari kontrol dan perlakuan telah digunakan pada uji oksidasi desulfurasi fenitrothion untik mendeterminasi kandungan protein dan sitokrom P-450.

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