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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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VARIASI SPASIO-TEMPORAL JENIS MAKANAN IKAN MOTAN, Thynnichthys polylepis DI RAWA BANJIRAN SUNGAI KAMPAR KIRI, RIAU [Spatio-temporal variation in the diet of Thynnichtys polylepis in floodplain river of Kampar Kiri, Riau] Ahmad Zahid; M. F. Rahardjo
Jurnal Iktiologi Indonesia Vol 9 No 2 (2009): Desember 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i2.190

Abstract

The research aimed to describe diet composition of Thynnichthyes polylepis. The diet compositions of population from two sites (Mentulik and Simalinyang) in floodplain river of Kampar Kiri, were compared according to the month. Fishes were captured using experimental gillnet and trap. For food habits analysis, the index of preponderance method was used. The collections were performed monthly from July to December 2008, where the stomach contents of 479 specimens were assessed. Prey items of T. polylepis were basically composed of phytoplankton and zooplankton, especially Cocconeis, Nitzschia, Navicula, Cyclotella, Pleurotaenium, and Testudinella. At site Mentulik, the most common items were Cocconeis, Nitzschia, and Navicula. Conversely, at site Simalinyang, Cocconeis, Pleurotaenium, and Nitzschia more representative. In general, main food of fish origin showed the highest index values at Mentulik, whereas at Simalinyang. The composition of items varied monthly, especially at Simalinyang. Food habits of fish may be flexible according to resource availability in spatial and temporal variation.
PERTUMBUHAN DAN REPRODUKSI IKAN LAYANG BIRU (Decapterus macarellus) DI PERAIRAN MALUKU UTARA [Growth and reproduction of mackerel scads, Decapterus macarellus (Cuvier, 1833) in North Moluccas waters] Kusdi Hi. Iksan; Irham Irham
Jurnal Iktiologi Indonesia Vol 9 No 2 (2009): Desember 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i2.191

Abstract

The study about growth and reproduction of mackerel scads in North Moluccas was conducted from January to May 2008 using purse seine. Total samples are 2000 fishes comprise 645 males and 1355 females. The growth of female fish faster than male and both of this fish reached maximum length at age 4 years. Negative allometric growth patterns were found both in female and male. All fish samples dominated by immature fish. The most mature fish was found in March and the first maturity fish reached at 258 mm of total length. The peak of spawning season was found in April-May and fecundity was ranged from 28,875 to 84,000 eggs. The number of eggs has a positive correlation with total length.
ASPEK REPRODUKSI IKAN LIDAH, Cynoglossus lingua H.B. 1822 DI PERAIRAN UJUNG PANGKAH, JAWA TIMUR [Reproductive aspect of long tonguesole, Cynoglossus lingua H.B 1822 in Ujung Pangkah Waters, East Java] Sulistiono Sulistiono; Karlina D. Soenanthi
Jurnal Iktiologi Indonesia Vol 9 No 2 (2009): Desember 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i2.192

Abstract

This study aims to investigate gonad maturity of long tonguesole (Cynoglossus lingua). Samples were collected from August 2005 to Januari 2006 from fish caught by fishermen using gill net and trap net in Ujung Pangkah waters. Analysis was done to estimate gonad maturity, gonado-somatic index, fecundity, and oocyte diameter. Long tonguesole was 202 individual consisted of 94 male and 108 female fish varied 65-325 mm in total body length. Sex ratio was around 1:1.4. First maturity gonad of male and female fish was 94-122 mm. According to gonad maturity stage and gonadosomatic index, fish was estimated to spawn from August to January with a peak one during December. Fecundity was 360-35926 eggs and oocyte diameter was 0.08-0.63 mm. Based on oocyte distribution, the fish was estimated a partial spawner.
EFFECT OF DRUG-METABOLIZING ENZYME ACTIVITY INDUCED BY POLYCHLORINATED BIPHENYL ON THE DURATION OF OXYTETRACYCLINE IN CARP Djamartumpal F. Lumban Batu
Jurnal Iktiologi Indonesia Vol 9 No 2 (2009): Desember 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i2.193

Abstract

A study was made of the induction of drug-metabolizing enzyme activity and the effect of the induced activity on the duration of oxytetracycline (OTC) in carp, Cyprinus carpio. Carp were fed a diet containing polychlorinated biphenyl (PCB)(0,1 mg/100 g body weight/day) for 2 week to induce drug-metabolizing enzymes. After pretreatment, OTC was administered in feed to PCB-treated and control carp as a single dose of 50mg/kg body weight.The result demonstrate that PCB highly induses benzo (a) pyrene hydroxylase among the enzymes of carp, but the induced hydroxylase does not react to OTC, resulting in no change in their tissue levels and duration time.
KEBIASAAN MAKANAN IKAN MOTAN, Thynnichthys thynnoides, Bleeker, 1852 DI RAWA BANJIRAN SUNGAI KAMPAR KIRI, RIAU [Food habits of Thynnichtys thynnoides Bleeker, 1852 in floodplain river of Kampar Kiri, Riau] Prawira Atmaja R.P. Tampubolon; Charles P.H. Simanjuntak
Jurnal Iktiologi Indonesia Vol 9 No 2 (2009): Desember 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i2.194

Abstract

Study on the food habits of Thynnichthys thynnoides in the floodplain of Kampar Kiri River, Riau, was conducted from July to Desember 2006, using experimental gillnet and trap. The main objectives of the study were to analyze the food compotition of T. thynnoides from two areas (Mentulik and Simalinyang) and the changes of the food in relation to season. Total samples are 252 fishes, comprises 125 fishes from Mentulik and 127 fishes from Simalinyang. Food analysis was determined by using Index of Preponderance. The result showed that the main food of T. thynnoides both in Mentulik and Simalinyang was Bacillariophyceae. At Mentulik, the most common prey items were Cocconeis, Cyclotella, and Nitzschia; on the other hand at Simalinyang Cocconeis, Cyclotella, and Pleurotaenium more representative. The composition of food items varied monthly, especially at Simalinyang. T. thynnoides from Mentulik and Simalinyang has same trophic positions.
MUSIM PEMIJAHAN IKAN PELANGI ARFAK (Melanotaenia arfakensis ALLEN) DI SUNGAI NIMBAI DAN SUNGAI AIMASI, MANOKWARI [Spawning Season of Arfak Rainbowfish (Melanotaenia arfakensis Allen) in Nimbai and Aimasi Streams, Manokwari] Emmanuel Manangkalangi; M. F. Rahardjo; Djadja S. Sjafei; Sulistiono Sulistiono
Jurnal Iktiologi Indonesia Vol 9 No 1 (2009): Juni 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i1.195

Abstract

The study was aimed to describe the spawning season of arfak rainbowfish (Melanotaenia arfakensis) in Nimbai and Aimasi streams, both are located in Prafi river system. Sampling was conducted from June to December 2007 and carried out monthly in four different habitat types using hand net. A total of 752 individual specimens were collected and consisted of five developmental stages, namely egg, larvae, juvenile, young and adult. There was no different proportion in both sexes, either habitat type or time. This species has relatively low fecund, producing approximately 23-1,351 eggs with relatively large diameter (0.5-1.3 mm). Large egg diameter was distributed in posterior of ovaries, with 2-3 modes, and presence of atretic eggs, and was indicated as multiple spawner fish. However, based on gonado somatic index, condition factor, presence of eggs and larva in limited period showed that there were increased reproductive activities in both locations from June to September, with low water flow condition. Concentration of reproduction activity during dry season to ensure that larva was produced relatively stable and in benign physical condition. In order to maintain the population of this species, both of these streams should be reserved as their natural habitats, thereby its life cycles could go on.
BIOLOGI REPRODUKSI IKAN SEPATUNG, Pristolepis grootii Blkr. 1852 (NANDIDAE) DI SUNGAI MUSI [Reproductive biology of Indonesian leaffish, Pristolepis grootii, Blkr. 1852 (Nandidae) in Musi River] Y. Emawati; Siti Nurul Aida; H. A. Juwaini
Jurnal Iktiologi Indonesia Vol 9 No 1 (2009): Juni 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i1.196

Abstract

Pristolepis grootii is one of the fishes in Musi River. The objective of this study was to determine the information on reproduction biology of P. grootii, including sex ratio, condition factor, GI, GSI, fecundity, egg diameter, and the spawning pattern. The study was conducted in June, July, August, and September 2006 in 62 stations. P. grootii was found in 16 stations. The fishes were caught using the hand net and gill net. Total samples were 110 individuals comprised 69 (62.7%) males and 41 (37.3) females. The range of total length is between 50-145 mm. The pattern of the growth is positive allometric. The range of the condition factor for male fish is bigger in than the female one in every research month. The sex ratio for male and female fish is 1 : 1,68. The GI of female fish (0,037-4,217%) is heavier than the male one (0-2,247%). Fecundity is about 2.301 eggs. The diameter of the egg is 0.36-0.91 mm and the fish is indicated to be a total spawner.
KEMATANGAN GONAD BEBERAPA JENIS IKAN BUNTAL (Tetraodon lunaris, T. fluviatilis, T. reticularis) DI PERAIRAN UJUNG PANGKAH, JAWA TIMUR [Gonad Maturity of Some Puffer Fishes (Tetraodon lunaris, T. fluviatilis, T. reticularis) in Ujung Pangkah, East] Sulistiono Sulistiono; Tri Hastuti Kurniati; Etty Riani; Seiichi Watanabe
Jurnal Iktiologi Indonesia Vol 1 No 2 (2001): Desember 2001
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v1i2.197

Abstract

Pengamatan terhadap kematangan gonad beberapa jenis ikan buntal (Tetraodon lunaris, T. fluviatilis, T. reticularis) 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). Gonad diambil, diawet dengan formaldehide 40 % dan ditimbang beratnya (sampai ketelitian 0.1 g) di laboratorium. Pengamatan tingkat kematangan gonad dilakukan secara morfologis. Analisis dilakukan untuk menentukan nisbah kelamin (J/B) dan indeks somatik gonad (GSI). Penelitian ini bertujuan untuk mengetahui musim pemijahan dari beberapa jenis ikan tersebut. Hasil pengamatan didapatkan bahwa jenis Tetraodon reticularis memiliki nisbah kelamin sebesar 1,6:1, T. fluviatilis sebesar 1,2:1 dan T. reticularis sebesar 1,9:1. Tingkat kematangan gonad jenis T. lunaris dan T. reticularis umumnya tidak matang dan matang awal (TKG I dan II) dan tidak ditemukan dalam keadaan matang gonad (TKG III dan IV). T. fluviatilis ditemukan mulai pada tingkat kematangan gonad 1 sampai V dengan prosentase TKG IV terbanyak pada bulan April. Berdasarkan nilai indeks kematangan gonad (IKG) pada T. fluviatilis, didapatkan bahwa nilai tersebut bervariasi 0,01-3.87 (jantan) dan 0.18-2.43 (betina) dengan nilai terbesar pada bulan April. Pada T. lunaris, nilai IKG bervariasi 0,04-5.74 (jantan) dan 0,01-3,62 (betina) dengan nilai terbesar dijumpai pada bulan Mei. Sedangkan pada T. reticularis nilai IKG    bervariasi 0,10-0,83 (jantan) dan 0,05-3,13 (betina). Berdasarkan TKG dan IKG tersebut, didapatkan bahwa puncak musim pemijahan diperkirakan terjadi pada bulan April untuk T. fluviatilis. Sedangkan untuk T. lunaris dan T. reticularis masih belum dapat ditentukan musim pemijahannya.ABSTRACTStudy on the gonad maturity of some puffer fishes (Tetraodon lunaris, T. fluviatilis, T.reticularis) had been done from March 2000 to April 2001 in Ujung Pangkah water, East Java. Samples were caught monthly using gill net mesh sized 2,5 and 4,5 cm. Gonads were removed, preserved by formaldehyde 40% and weighed by electronic balances (0.1 g approximately). Gonad maturity stage was classified morphologically according to the gonad classification. Analysis was done to estimate sex ratio and gonad somatic index (GSI). This study aimed to know spawning season of those fishes. Sex ratio of Tetraodon reticularis, T. fluviatilis and T. reticularis werel.6:l. 1.2:1, and 1.9:1, respectively. Immature and premature gonads were found in T. lunaris', immature, premature, maturing, mature gonads were found in T. fluviatilis, with a peak percentage in April: and immature and premature gonads were found in    T. reticularis. Gonad somatic index (GSI) varied 0,04-5.74 (male) and 0.01-3.62 (female) for T. lunaris with a peak one    in    May;    0,01-3,87 (male) and 0,18-2,43 (female) with a peak one in April for T. fluviatilis', and 0,10-0,83 (male) and 0,05-0,57 (female) for T. reticularis. According to the gonad maturity and gonad somatic index, a peak of spawning season was estimated    to be    in    April for T. fluviatilis. While for the T. lunaris and T. reticularis could not be estimated their spawning season.
A NEW RECORD OF Cephalopholis igarashiensis KATAYAMA, 1957 (PERCIFORMES, SERRANIDAE) FROM INDONESIA T. Peristiwady; M. F. Rahardjo; C. P.H. Simanjuntak
Jurnal Iktiologi Indonesia Vol 9 No 1 (2009): Juni 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i1.198

Abstract

Four specimens were collected at Winenet Fish Market, Bitung, North Sulawesi, Indonesia on March 5th, 2008 and October 11th, 2009. Other one specimen was collected at Batuputih Fish Market on October 17th, 2009. The fish was caught by hook and line at a depth about 50 m in Dua Island, North Sulawesi. Distribution of Cephalopholis igarashiensis at Pacific Ocean is found in southern Japan, Taiwan, Guam, Philippines, South China Sea, Samoa, and Tahiti in French Polynesia. Its morphological features and diagnostic characters are discussed and illustrated.
KEBIASAAN MAKANAN IKAN KRESEK (Thryssa mystax) DI PERAIRAN UJUNG PANGKAH, JAWA TIMUR [Food habit of moustached thryssa (Thryssa mystax) in Ujung Pangkah waters, East Java] Sulistiono Sulistiono; Nia Triyuniastuti Tirta; Mumiarti Brodjo
Jurnal Iktiologi Indonesia Vol 9 No 1 (2009): Juni 2009
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v9i1.199

Abstract

One of an important fishery commodity in Ujung Pangkah waters is moustached thryssa fish. The study aimed to investigate stomach contents of the fish caught in the area. This study was conducted during July to December 2005 in Ujung Pangkah waters, Gresik, East Java using 220 individual of fish samples (n=92 males, n=128 females). Research result shows that shrimps was a basic food, mollusk and parts of crustacean were secondary food, while copepods and pollychaeta were incidental food both for male and female fish. Based on index of stomach contents, the value was higher during July-August and November. Kinds and percentage of the stomach contents varied according to size and time. According to similarity index, stomach contents of male and female fish are similar.

Page 27 of 42 | Total Record : 420

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