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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 8 Documents
 1 
Search results for , issue "Vol 9 No 1 (2009): Juni 2009" : 8 Documents clear
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.
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.
BIOLOGI REPRODUKSI IKAN PELANGI MERAH {Glossolepis incisus, Weber 1907) DI DANAU SENTANI [Reproductive biology of red rainbowfish (Glossolepis incisus Weber 1907) in Sentani Lake] Lisa Sofia Siby; M. F. Rahardjo; Djadja Subardja Sjafei
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.v9i1.201

Abstract

The aim of this study is to explain biology aspect of red rainbowfish that is reproductive biology [sex ratio, gonad maturity, fecundity, spawning season and length at first maturity (L50)]. This study was conducted in Sentani Lake during 5 months (December 2007-May 2008). Sex ratio was higher for female on January-February (1:3), gonad maturity and GSI was higher in station 1, 2, 3 and 6 at December. Fecundity ranges between 910-3122 eggs. Eggs diameter is 0,625-7,125 ^m and spawning pattern is partial spawner and iteroparous.
KEBIASAAN MAKANAN DAN PERUBAHAN ONTOGENETIK MAKANAN IKAN BAJI-BAJI (Grammoplites scaber) DI PANTAI MAYANGAN, JAWA BARAT [Food habits and ontogenetic changes in the diet of the rough flathead Grammoplites scaber in Mayangan Coast, West Java] Charles P.H. Simanjuntak; Ahmad Zahid
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.v9i1.202

Abstract

The study on the food habits and ontogenetic changes in the diet of the rough flathead, Grammoplites scaber, in Mayangan Coast, West Java, was conducted in 12 months. The main objectives of the study were to analyze the food compotition and the changes of the food in relation to season and fish length. Samplings were done once in a month, using gillnet and beach seine. Total samples were 795 individuals and the range of total length was between 107-364 mm. Food analysis was determined by using index of preponderance. The result showed that the food of the rough flathead fish could be grouped into four groups. The groups are crustacea, pisces, cephalopod, and bivalve. This fish was crustacivore and the major foods were Portunus, Metapenaeus dan Penaeus. The main foods which were consumed varied each month. Along with the increasing of the fish size, there was a change of the main foods. Smaller fish tend to consume Penaeus; whereas the larger one tends to consume Portunus, Metapenaues and Saurida.
ASPEK REPRODUKSI IKAN KAPASAN (Gerres kapas Blkr, 1851, Fam. Gerreidae) DI PERAIRAN PANTAI MAYANGAN, JAWA BARAT [Reproductive aspect of silver biddy (Gerres kapas Blkr, 1851, Fam. Gerreidae) in Mayangan Coast, West Java] Djadja Subardja Sjafei; Dian Syaputra
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.v9i1.203

Abstract

This study was held as a fundamental management for silver biddy fish in Mayangan Coast, Subang, West Java, from June to November 2003. The main objective of the study was to determine the sex ratio, gonad maturity development, gonado somatic index, fecundity, and spawning pattern. The result showed that the sex ratio of male and female fish based on total fish and mature fish were unbalanced (1:3.06 and 1:9.26). Based on gonad maturity development it suggested that fish spawned in every month. The first size of maturity for male and female were 115 mm and 105 mm. GSI increased based on total length and gonad maturity development. The fecundity of silver biddy fish was ranged from 1.158 to 219.372 in eggs. Based on the oocyte diameter distribution from the mature fishes, the fish was indicated as total spawner.
BIOLOGI REPRODUKSI DAN FAKTOR KONDISI IKAN ILAT-ILAT, Cynoglossus bilineatus (Lac. 1802) (PISCES: CYNOGLOSSIDAE) DI PERAIRAN PANTAI MAYANGAN JAWA BARAT Ahmad Zahid; Charles 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.v9i1.205

Abstract

The reproductive biology and length-weight relationship of fourlined tonguesole, (Cynoglossus bilineatus Lacapede, 1802) were examined in the Mayangan Coast, West Java from May to November 2003. The objective research was describe some aspect reproductive such as sex ratio, spawning season, fecundity, and spawning type; and also describe length-weight relationship and condition factor. The total length (TL) of all observed specimens ranged from 80 to 369 mm. Sex ratio of males and females was 1.5:1. Fecundity of this species was estimated at between 2.323 and 225.557 eggs per individual. C. bilineatus is an asynchronous, partial spawner, with are spawning peaks in June and September (for males), July and October (for females). Negative allometric was established in the length-weight relationship (b=2.859). Condition was estimated at between 0.89 and 1.06 for males and 0.84-1.08 for females.

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