scholarly journals POLIKLULTUR IKAN KERAPU LUMPUR (Epinebhelus suillus) DAN BERONANG (Siganus javus) YANG DIBERI PAKAN BERBEDA DALAM HAMPANG DI TAMBAK

2017 ◽  
Vol 1 (1) ◽  
pp. 19
Author(s):  
Rohama Daud ◽  
Utojo Utojo ◽  
Fadlil Rasjid
Keyword(s):  
Siganus Javus

Telah dilaklkan penelitian pemberian jenis pakan berbeda dalam polikultur ikan kerapulumpur (E,suillus) dan beronang (S.javus) untuk mengetahui pengaruh jenis pakan terhadap pertumbuhan dan kelangsungan hidupnya. Empat jenis perlakuan yang telah dilakukan yaitu pakan komersial atau pelet untuk ikan bandeng (A), ikan mujair (B), campuran pelet dengan ikan mujair (C) dan tanpa pakan (D).

PERBANDINGAN HASIL TANGKAPAN BUBU PADA JENIS TERUMBU BUATAN BAN DAN BAMBU DI PERAIRAN DESA TOISAPU KECAMATAN BAGUALA AMBON

2018 ◽  
Vol 2 (2) ◽  
pp. 58-65
Author(s):  
Alberth Ch Nanlohy
Keyword(s):  
Marine Organism ◽  
Artificial Reef ◽  
Total Catch ◽  
Siganus Javus

Information about material kinds of artificial reef which effective for marine organism habitat is rare. Based on this fenomena, It is important to conduct a study about bamboo and tire artificial reef. The objective of this study is to find out a catch comparison and species compotition of pot catch on bamboo and tire artificial reef. Alternatif a widely used materials are bamboo and tire with consideration easy to obtain and economis. The result of this study show that the total catch during the study was 170 fishes from 8 species dominated by Siganus javus, Seranidae sp and Carangidae sp. The total catch of the Tire artificial reef was 87 fishes including 48,19 % Siganus sp, 23,53% Seranidae sp and 10,06 % Lethrinidae sp where as Bamboo artificial reef was 83 fishes including 33,34 % Siganus sps,26,3% Seranidae sp and 14,26 % Carangidae sp . The result showed that catch of bamboo artificial reef was significantly difference from the catch of tire artificial reef where the catch of tire artificial reef was higher than that catch of bamboo artificial reef.

scholarly journals First hatchery bred streaked spinefoot rabbitfish (Siganus javus) in Sabah, Malaysia

2021 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Jeremy Tan
Keyword(s):  
Abdominal Cavity ◽  
Practical Importance ◽  
Maximum Size ◽  
Early Morning ◽  
Juvenile Stage ◽  
The Body ◽  
Market Potential ◽  
Larval Rearing ◽  
Lower Jaw ◽  
Siganus Javus

The present study aims to expand the market potential of the streaked spinefoot rabbitfish (Siganus javus) in Malaysia and provide consumers more choices of affordable protein source from aquaculture. Spawning hehavior of S.javus was recorded in a week after the new moon in October 2019 and January 2020. Spawning occurred between midnight and early morning, and the eggs hatched about 16 to 18 hours later. Throughout the incubation and larvae rearing period, water temperature was maintained at 30 to 31 °C. Water salinity, pH and DO were 31 to 33 ppt, 7.8 to 8, and 5 to 7 mg/l, respectively. Eggs diameter ranged from 0.550 to 0.603 mm. At 1 day after hatched (d AH), eyes of the larvae were formed but unpigmented and mouth structure was not developed. At 2 d AH, the pigmentation of eyes darkened, digestive tract formed, and anus and mouth opened. At 3 d AH, the lower jaw began to show movement, indicating that the ability of larvae to indulge in feeding. The buds of dorsal and ventral fins started to develop and elongate from 9 d AH and were covered with melanophores. At 25 d AH, the body of the larvae turned brownish and abdominal cavity was deeply pigmented, indicating the onset of metamorphosis. By the age of 30 d AH, the larvae completed development into juvenile stage. At 270 d AH, the juvenile reached maximum size of 21 cm in total length. This study was the first successful attempt at naturally spawning and hatchery rearing of S. javus into juvenile stage in the country. The development of a complete larval rearing protocol for S. javus could provide information of practical importance in hatchery breeding of other rabbitfish species.

scholarly journals The Use of Hematological and Histopathological Biomarkers to Assess the Health of Aquatic Ecosystems in Koh Sichang, Thailand

2021 ◽  
Vol 20 (4) ◽  
Author(s):  
Anek Sopon ◽  
◽  
Jes Kettratad ◽  
Ajcharaporn Piumsomboon ◽  
Gen Kaneko ◽  
...  
Keyword(s):  
Health Status ◽  
Oil Spills ◽  
Polluted Water ◽  
Pathological State ◽  
Epithelial Hyperplasia ◽  
Average Value ◽  
Histopathological Alterations ◽  
Sensitive Organ ◽  
Fish Samples ◽  
Siganus Javus

Abstract Koh Sichang area in Thailand is a sink for a wide variety of contaminants such as heavily polluted water from industry and oil spills. This situation may affect the health status of fish living in the area, but such information remains scarce. In this study, we evaluated the health status of java rabbitfish Siganus javus, an important marine fish in Koh Sichang, using hematological and histopathological biomarkers. All fish samples were collected from the Koh Sichang area during December 2017 and January 2018. Although the salinity, pH, and dissolved oxygen levels at sampling points were all within the normal range, abnormal nuclei were observed in erythrocytes (up to ~6% of all erythrocytes) and in some leucocytes (neutrophil, lymphocyte and monocyte). Visceral organs (gill, kidney and liver) were apparently normal in terms of gross morphology, but a wide variety of the histopathological alterations were found at the microscopic level: epithelial hyperplasia and aneurysm in gills; blood congestion and melanomacrophage centers (MMCs) in the liver; renal degeneration, granuloma and MMCs together with unidentified parasites in kidney. Calculation of semi-quantitative parameters [histological alteration index (HAI) and the average value of alteration (AVA)] demonstrated the highest frequency of histopathological alterations in kidney, suggesting that kidney is a sensitive organ. Overall, our observations suggest that S. javus in Koh Sichang is under the pathological state and warrants conservation efforts. Keywords: Erythrocytes, Fish Health, Hematology, Histopathology, Kidney

scholarly journals First Record of Streaked Rabbitfish Siganus Javus (L., 1766) from the Iraqi Marine Waters, with Re Description of White-Spotted Rabbitfish Siganus Canaliculatus (Park, 1797)

2019 ◽  
pp. 2123-2128
Author(s):  
Abbas J. Al-Faisal ◽  
Ahmed CH. Al-Shamary ◽  
Usamah H. Yousif ◽  
Kadhim H. Younis
Keyword(s):  
First Record ◽  
The Body ◽  
Marine Waters ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Siganus Canaliculatus ◽  
Siganus Javus ◽  
Deep Body ◽  
Rabbitfish Siganus Canaliculatus

Two Siganid fishes were described in the current study, the first one is Siganus javus (Linnaeus, 1766) as a new record and the other Siganus canaliculatus (Park, 1797), which was collected from the Iraqi marine waters. The samples were collected during December 2018. Streaked rabbitfish S. javus is diagnosed by a deep body, 54.01% in standard length, depth  of caudal peduncle, 7.27%, total gill rakers 19 and silvery blue undulating lines on mid and lower sides of the body. Whereas the body depth of White-spotted rabbitfish S. canaliculatus was 39.08-42.66%, Caudal peduncle depth ranged from 5.21 to 5.66%, total gill rakers ranged from 22 to 24 and it  is distinguished by a numerous pearly blue to whitish spots on the nape and trunk.

An Electron Microscopic study of the liver in certain marine teleosts

1990 ◽  
Vol 48 (3) ◽  
pp. 510-511
Author(s):  
V.E.C. Ooi ◽  
Linda S.M. Ooi ◽  
Shuyi Ma
Keyword(s):  
Pancreatic Tissue ◽  
Hepatic Tissue ◽  
Lates Calcarifer ◽  
Electron Microscopic ◽  
Hepatic Parenchyma ◽  
Transmission Electron ◽  
Architectural Organization ◽  
Parenchymal Cells ◽  
Siganus Javus ◽  
Lutjanus Bohar

The hepatic parenchyma of five marine teleosts (belonging to five families in the Teleostei) was investiga ted during the summer months by means of light and transmission electron microscopy. The architectural organization of the livers of these teleosts displays remarkable differences with regard to the interrelationship with the pancreatic tissue. In Lates calcarifer and Lutjanus bohar, prominent pancreatic tissue is found in the liver, following the course of portal vein and hepatic artery and surrounding the branches of these vessels. The pancreatic tissue appears less abundant in Mylio macrocephalus than in the preceding species. In Siganus javus and Gymnothorax schismatorhynchus, there are no dispersed intrahepatic pancreas. The liver lobules are defined by the presence of connective tissue strands in Lates and Siganus, but in the other three species there was no precise lobulation of the hepatic tissue.The microstructure of the livers in these teleosts is basically the same in all cases, although there are considerable variations inultrastructure of their parenchymal cells. The plates of hepatocytes which are usually two or more cells thick is in terrupted by sinusoids lined with fenestrated endothelial cells and Kupffer cells (Figs. 1, 2).

Histological study of middle layer of rabbit fish eye (siganus javus)

2012 ◽  
Vol 2 (2) ◽  
pp. S1086-S1089 ◽  
Author(s):  
Amir Sattari ◽  
Marziyeh Asli ◽  
Foroogh sadat Mansoori ◽  
Reza Kheirandish ◽  
Hossein Yavari
Keyword(s):  
Histological Study ◽  
Middle Layer ◽  
Fish Eye ◽  
Siganus Javus

A histological study of the outer layer of rabbit fish (Siganus javus) eye

2012 ◽  
Vol 23 (1) ◽  
pp. 125-128 ◽  
Author(s):  
Foroogh sadat Mansoori ◽  
Amir Sattari ◽  
Reza Kheirandish ◽  
Marziyeh Asli
Keyword(s):  
Outer Layer ◽  
Histological Study ◽  
Siganus Javus

Fish Assemblages in Iraqi Marine Waters, North West The Arabian Gulf

2021 ◽  
pp. 16-27
Author(s):  
Ahmed CH. Al-Shamary ◽  
Kadhim H. Younis ◽  
Usama H. Yuosif
Keyword(s):  
Oreochromis Niloticus ◽  
Dominant Species ◽  
Fish Assemblages ◽  
Arabian Gulf ◽  
Marine Waters ◽  
Oreochromis Aureus ◽  
North West ◽  
The Third ◽  
Two New Species ◽  
Siganus Javus

The composition of fish assemblages in Iraqi marine water was assessed. 91 species belonging to 71 genes and 47 families of Osteichthyes and 13 species of Conderchthyes were collected during the study period from January  to December 2018, using trawl net fishing. Three stations were selected, where two new species (Siganus  javus and Gobiopsis sp.) and reclassification of Torpedo panthera where identified and two species of freshwater fish (Oreochromis niloticus and Oreochromis aureus) were first recorded in marine waters. The highest numbers of species were 32 and 42 for the first and second stations, respectively, recorded in October , while 55 species were recorded in the third station during  August. Leiognathus bindus was the dominant species in the first and second stations, while Ilisha compressa dominated the third station. Carangidae and Sciaenidae were the dominant families in number of species (7 and 5, respectively), whereas 4 species were recorded for Clupeidae, Sparidae, Mugilidae and Gobidiae.

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