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Stomach Content Analysis of HampalamacrolepidotaKuhl& Van Hasselt, 1823 from the Kampar KiriRiver, Mentulik Village, KamparKiri HilirDistrict, Kampar Regency, Riau Province G Manurung, Popy; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractHampalamacrolepidota is a carnivorousÂ fish that inhabit the Kampar Kiri River, Mentulik Village. In the Kampar Kiri River there is waste from illegal gold mining, domestic waste, and floating cage aquaculture activities that pollute the water. The pollution may negatively affects small aquatic organisms that represent as prey for H. macrolepidota.To understand the type of food consumed by H. macrolepidota, a study has been conducted fromÂ February to April 2018. Sampling was conducted 4 times, once/ 2 weeks for a two months period. There were 52 fishes captured, 19 fishes had full stomach and the others had empty stomach. Fish stomach was dissected, and each type of stomach contents was identified and weighed.Results shown that the content of the fish stomach consists of fish, leaves, and insect remains. The main food of H. macrolepidota is fish (Preponderance Index 90%).Keyword:Cyprinidae, Feeding Habit, Index of Preponderance, Carnivore fish.

Reproductive Biology of Hampala macrolepidota Kuhl &Van Hasselt, 1823 from the Kampar Kiri RiverMentulik VillageKampar Kiri Hilir District Kampar Regency Riau Province Kartini, Tirta Amelia; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Â ABSTRACTÂ Hampala macrolepidota is present in the Kampar Kiri River. A study aims to understand the reproductive biology ofH. macrolepidotahas been conducted from February to April 2018. Fish samplingswereconducted 4 times, one/ 2 weeks. Parameters measured were sex ratio, gonad maturity level, gonad somatic index (GSI), fecundity and egg diameter. Results shown that there were 42 males and10 females (sex ratio 4:1). Male has slimmer body, darker body color than those of the female. Size at maturity level in male ranged from 102-300 mm (SL) and 30-700 g BW,while that of the females was 173-330 mm (SL) and 150-990 g BW. The GSI of male ranged from0.04-2.75%, while that of the females was0.94-12.43%. The fecundity was 136.534 eggs/fish, and the egg diameter was 0.5-0.9 mm.Keywords: Sex ratio, gonad maturity level, gonad somatic index, fecundity

Stomach Content Analysis of HampalamacrolepidotaKuhl& Van Hasselt, 1823 from the Kampar KiriRiver, Mentulik Village, KamparKiri HilirDistrict, Kampar Regency, Riau Province G Manurung, Popy; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractHampalamacrolepidota is a carnivorous fish that inhabit the Kampar Kiri River, Mentulik Village. In the Kampar Kiri River there is waste from illegal gold mining, domestic waste, and floating cage aquaculture activities that pollute the water. The pollution may negatively affects small aquatic organisms that represent as prey for H. macrolepidota.To understand the type of food consumed by H. macrolepidota, a study has been conducted from February to April 2018. Sampling was conducted 4 times, once/ 2 weeks for a two months period. There were 52 fishes captured, 19 fishes had full stomach and the others had empty stomach. Fish stomach was dissected, and each type of stomach contents was identified and weighed.Results shown that the content of the fish stomach consists of fish, leaves, and insect remains. The main food of H. macrolepidota is fish (Preponderance Index 90%).Keyword:Cyprinidae, Feeding Habit, Index of Preponderance, Carnivore fish.

Otolith growth ring pattern of Monopterus albus Zuiew from swamp area of the Sawah Village, Kampar District, Riau br. Damanik, Suci Anggeraini; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract In the swamp area of the Sawah Village, the water quality is affected by pollutant originated from activities conducted around and in the swamp area.The low quality water may negatively affects the growth of Monopterusalbus and it is reflected in the growth pattern in the otolith of fish living in that swamp. A research aims to understand the pattern of otolith growth rings of theMonopterusalbuswas conducted in March to May 2018.The fish was captured using fishing gears, once/week. There were 61 fishes (31 females, 15 transitionand 15 males). The otoliths (sagita) is taken by tweezers and shaved using fine grindstone. Growth ring pattern in the otolith was studied using a binocular microscope. The length of otolith was 2.25-4.75 mm and weight 0.0040-0.0200 gram. Results shown that the number of dark ring in the otolith of the fish ranged from 1 to 4. The distance between the nucleus and the first dark ring was varied (0.25-1.75 mm). These data indicates that the formation of dark ring may not be affected by periodical condition but it is affected by individual problem. The number of dark ring in otolith indicate that the fish is able to live properly in the swamp areas. Keywords: dark ring, sagita, freshwater eel, eel growth

Morphometric, Meristic, and Growth Patterns of Hampala macrolepidota from the Kampar Kiri River, Mentulik Village, Kampar Regency, Riau Province Siregar, Fuja Arsita; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract Hampala macrolepidotafishis a freshwater fish that inhabit the Kampar Kiri River.To understand themorphometrical, meristical characteristics and growth pattern of this fish, a research had been conducted from February-April 2018. There were 52 fishes (102-330 mm SL and 30.92-990 g BW) were captured from the river. There were 26 morphological characteristics measured and 11 meristical characteristics counted. Meristical characteristics of the fins were as follows: D. I, 11; P, 16; V, 9; A,7; C, 20, while the number of scale in the frontal area of the dorsal fin was 10-12, around the body was 22, around the base of the tail was 7-8 and in the lateral line was 27-28. There were 4 morphometrical characteristic differences between male and female, namely the distance between mouth and the base of pectoral fin, eye diameter, dorsal fin height and the base of caudal fin height. The length-weight relationship of the fish was allometric positive, 3.41 in female and 3.53 in male. Keywords:Freshwater fish, morphometrical characteristic, meristical characteristic, allometric positive

Otolith Growth Ring Pattern of Hampala macrolepidota Kuhl and Van Hasselt, (1823) from the Kampar Kiri River, Mentulik Village , Kampar Kiri Hilir District, Riau Province Situmorang, Tety E; Efizon, Deni; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRAK Kampar Kiri River is one of the rivers that are polluted due to human activities along the river. Decrement of water quality may affect the growth of fish and it is reflected on the pattern of otolith growth rings. A research aims to understand the pattern of otolith growth rings in the H. macrolepidota was conducted in January to March 2018. Sampling was done four times for two months. The fish was captured using a gill net. There were 52 fishes (10 females and 42 males) captured. The otolith (sagita) were removed and shaved. Results shown that the otolith length was 0.75 to 6 mm and their weight was 0.0008 to 0.02 g. There were dark and light rings in the otolith. Twenty six fishes had dark rings (1-3 rings/fish). Distance between the nucleus and the first dark ring was 0.02 to 0.5 mm. These data indicates that the formation of the dark ring may not be affected by periodical condition such as season or periodic physiological condition such as reproductive activities. The formation of dark ring in the otolith seem to be individual and not concurrent in fish population. Water quality in the sampling area was good (temperature 26 to 27⁰C; pH 5; DO 2.2 to 3.9 mg/L; and CO2 9.9 to 15.9 mg/L) and it may be sufficient to support the life of the fish. Keywords: Polluted water, dark ring, relative growth, sagita

Reproduction of Macrobrachiummammilodactylus from swamp area around the Riau Main Stadium, Pekanbaru Litavia, Widya; Windarti, Windarti; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract Macrobrachiummammilodactyluswas a type of freshwater shrimp that inhabits swamp area around the Riau Main Stadium. The population of shrimp in the swamp was relatively high and it indicatesthat the reproduction of the shrimp was succeed.This research aims to understandthe reproductive biological aspectsof the shrimp and it was conducted in March-April 2018.Sampling were conducted 4 times, once/week.Totally 100 shrimps (20 males and 80 females) were caught, 26.71-44.67mm TL and 0.2052-0.814gr BW.Male and female sex ratio is 1:4. In each sampling time there were shrimps with 2nd, 3rd, 4th maturity levels. Gonad Somatic Index (GSI) of the male was ranged from 0.48% -3.56% and the female was ranged from 0.02-9.30%. Fecunditywas around 137-208 eggs / shrimp and the egg diameter was 0.6-0.8 mm.There were 52 ovigerous females that carried 67-218 eggs / female.The diameter of the abdomen’s attached eggs range from 0.6-0.9 mm, and the embryos were in 1st stage (eyeless embryos) and 2nd stage (embryos with developing eyes).In the ovigerous females, there were several individuals that have developing eggs inside their ovary (in the 2nd and 3rd maturity levels).This fact indicates that M. mammilodactylusisa partial spawner. Keyword : Freshwater Shrimp, Sex Ratio, GSI, Maturity Level, ovigerous females

Reproductive Biology Aspect of Freshwater Shrimp (Macrobrachium mammilodactylus) from the Terminal AKAP Lake, Payung Sekaki District, Pekanbaru City J. Wiratama, Prano; Windarti, Windarti; Efawani, Efawani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractMacrobrachium mammilodactylus is a type of freshwater shrimp that inhabits the Terminal AKAP Lake. The population of freshwater shrimp in this lake is relatively high and its indicate that reproduction of the shrimp was succeed. To understand the reproduction biology of the shrimp, a study has been carried out from February to March 2018. Sampling were conducted 4 times, once/week. Totally 107 shrimps (26 male and 81 female) were captured, they were 23.31-47.50 mm TL. and 0.1932-1.2132 gr BW. Sex ratio of males and females was 1:3.1. In each sampling time there were shrimps with 2nd, 3rd and 4th maturity level. Gonad Somatic Index (GSI) of the male was ranged from 0.80-3.19% and that the female was ranged from 0.98-4.88%. Fecundity is around 128-273 eggs/shrimp and the egg diameter was 0.43-0.73 mm. There were 27 ovigerous females that carried 13-289 eggs/female. The diameter of carried egg was 0.50-1.25 mm with embryo development in stage I (the embryo with no eye) and II (the embryo with developed eyes). The relationship of fecundity and TL toward BW are weak, r=0.39and r = 0.37respectively, while the relationship between fecundity and Gonad Weight was strong (r = 0.84). There were ovigerous females that had eggs in several developing stages inside their ovary, and it indicates that M. mammilodactylus is a partial spawner. Keyword: Freshwater shrimp, sex ratio, maturity level,GSI, fecundity

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