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INVENTORY OF FISH SPECIES IN OXBOW TELUK BENDERAS, RANTAU BARU VILLAGE, PANGKALAN KERINCI DISTRICT PELALAWAN REGENCY RIAU PROVINCE Khoirunisyah, Khoirunisyah; Putra, Ridwan Manda; Efawani, Efawani
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.267-273

Teluk Benderas Lake is an oxbow lake formed because the Kampar River's flow was cut off. This lake is a habitat for various types of fish. However, information on fish species in the area is still limited. To find out the kinds of fish in Teluk Benderas Lake, a study was conducted in March-May 2023 using the survey method. Fish sampling was performed once a week for two months. The fish were caught using a trawl measuring 150 m long and 4,5 m wide with 1-inch mesh size. Water quality parameters measured were temperature, brightness, depth, pH, DO, and CO2. The results showed that 1.398 fish were caught, consisting of 4 orders, 13 families, 25 genera, and 32 species. Based on the results of water quality measurements, it was concluded that Teluk Benderas Lake can still support fish life in the waters

A Study on Morphometric and Mouth Structure of Luciocephalus pulcher Gray, 1830 from the Sibam River, Pekanbaru Putri, Dwika Hanifah; Efawani, Efawani; Windarti, Windarti
Jurnal Perikanan dan Kelautan Vol. 30 No. 1 (2025): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.1.128-135

Luciocephalus pulcher lives in peat swamps, and the male incubates the eggs in the mouth. A study aimed to determine morphometric characters and differences in the oral structure of male and female fish was conducted from June to July 2024. Fish samples were caught in the upper Sibam River. 5 times, once/week. The morphometrical characteristics were measured, and the fish mouth structure was observed. Results showed that 32 fish were caught, consisting of 21 males and 11 females. Of the 37 morphometric characters observed, 18 differed between males and females. These characters included total length, head length, body height, caudal peduncle height, eye diameter, anal fin to caudal fin base distance, dorsal fin base length, pectoral fin base length, anal fin height, ventral fin base length, caudal fin base length, lower jaw length, upper jaw length, lower jaw width, gular sac width, lower lip length and upper lip length. The total length of male fish ranged from 48-135 mm, while females were 48-135 mm. Fin characteristics in male and female fish were the same, with the formula D.I, 8-12 P.12-15 V.6-7 A.I, 14-20 C.13-15. The difference in mouth characters was seen in the gular sac. The gular sac of male fish was wider with thicker tissue, more folded, more flexible, elastic skin tissue, and smaller, more flexible hyoid bone. In contrast, female fish have smaller, less elastic gular sacs, thinner tissue, and less folded and thicker hyoid bone.

GILL, KIDNEY, INTESTINE, AND LIVER STRUCTURES OF Pangasianodon hypophthalmus REARED UNDER BIOFLOC SYSTEM AND PHOTOPERIOD MANIPULATION Pardede, Alfred Nobel; Windarti, Windarti; Efawani, Efawani
Asian Journal of Aquatic Sciences Vol. 5 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Pangasianodon hypophthalmus is a freshwater fish that can grow well in dark condition. In no light condition, fishes are more responsive to feed provided. However, phytoplankton may not grow well, and as a consequence the water quality was poor and it negatively effects the fish health in general. The combination of biofloc and photoperiod manipulation systems is expected to improve the water quality as well as the fish health. To understand health status of the fish in general, the histological structure gill, kidney and liver was investigated. Sample were fixed in 5% formalin, paraffin processed and Haematoxylin Eosin stained. There were 2 factor, 3 treatment applied, namely natural (control), 18G (18 hours dark), 24G (24 hours dark) and 3 repetition. Parameter measured were survival rate and histological structure of gill, kidney, intestine and liver. Results shown that there are not difference of histological structure of the organs of fish reared under biofloc and manipulated photoperiod systems. There were light abnormalities in the gill, such as hyperplasia, hypertrophy, oedema and necrosis. There is no negative effect of biofloc system and photoperiod manipulation in structure of fish organ as there is only light abnormalities that can be cured when the water quality is good.

Water Quality of a Tributary of Siak River and Reservoir in Pekanbaru City, Riau Province, Using the CCME-WQI Yuliati, Yuliati; Sumiarsih, Eni; Adriman, Adriman; Nurfatihayati, Nurfatihayati; Efawani, Efawani
Depik Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35403

This research was conducted on one of the Siak River tributaries that crosses the urban area in Pekanbaru, namely the Pengambang River. The Pengambang River flow is dammed to become a reservoir; one of its functions is as a source of raw drinking water. Increased activity along rivers and reservoirs certainly has an impact on water quality. The research was carried out in May-October 2023. Water sampling was taken at 3 points each along the river flow and in the Reservoir. The physicochemical water quality parameters measured include temperature, TSS, BOD, COD, DO, pH, TP, Nitrate, and Total coliforms for rivers and reservoirs, while Chorofil-a only for reservoirs. Water quality was evaluated using CCME-WQI, and the results of water quality evaluation according to CCME-WQI in the Pengambang River at all sampling stations could have been bad to marginal. At the same time, in the Reservoir, it was marginal. The CCME_WQI Index value in rivers ranges 42.33 to 54.97, while in reservoirs, it is higher 49-56, it indicated water quality in reservoir better than river. Parameters influencing water quality in rivers and reservoirs, especially TC and BOD come from household waste cage fish cultivation.

Water Quality of a Tributary of Siak River and Reservoir in Pekanbaru City, Riau Province, Using the CCME-WQI Yuliati, Yuliati; Sumiarsih, Eni; Adriman, Adriman; Nurfatihayati, Nurfatihayati; Efawani, Efawani
Depik Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.35403

This research was conducted on one of the Siak River tributaries that crosses the urban area in Pekanbaru, namely the Pengambang River. The Pengambang River flow is dammed to become a reservoir; one of its functions is as a source of raw drinking water. Increased activity along rivers and reservoirs certainly has an impact on water quality. The research was carried out in May-October 2023. Water sampling was taken at 3 points each along the river flow and in the Reservoir. The physicochemical water quality parameters measured include temperature, TSS, BOD, COD, DO, pH, TP, Nitrate, and Total coliforms for rivers and reservoirs, while Chorofil-a only for reservoirs. Water quality was evaluated using CCME-WQI, and the results of water quality evaluation according to CCME-WQI in the Pengambang River at all sampling stations could have been bad to marginal. At the same time, in the Reservoir, it was marginal. The CCME_WQI Index value in rivers ranges 42.33 to 54.97, while in reservoirs, it is higher 49-56, it indicated water quality in reservoir better than river. Parameters influencing water quality in rivers and reservoirs, especially TC and BOD come from household waste cage fish cultivation.

Biologi Reproduksi Ikan Alu-Alu (Sphyraena spp.) dari Perairan Sibolga Sumatra Utara Syahfutra, Nano; Efawani, Efawani; Windarti, Windarti
Ilmu Perairan (Aquatic Science) Vol. 11 No. 2 (2023): Juli
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Ikan alu-alu merupakan salah satu ikan air laut yang hidup di Perairan Sibolga Sumatera Utara. Penelitian ini bertujuan untuk mengetahui biologi reproduksi ikan Alu-alu (Sphyraena spp). Pengambilan ikan sampel dilakukan selama 3 bulan dengan interval 1 bulan sekali yang telah dilakukan pada bulan Mei-Juli 2022. Parameter yang diukur adalah karakteristik seksual, nisbah kelamin, tingkat kematangan gonad (TKG), indeks kematangan gonad (IKG), fekunditas dan diameter telur. Hasil penelitian menunjukkan ikan yang tertangkap terdiri dari 2 jenis yaitu ikan Sphyraena putnamae dan ikan Sphyraena obtusatta. Ikan S.putnamae sebanyak 172 ekor (154 ikan jantan dan 18 ikan betina dengan rasio 2:1), sedangkan ikan S.obtusatta terdiri 73 ekor ikan( 49 ekor jantan dan 24 ekor ikan betina, dengan rasio 2:1). Rata-rata Indeks kematangan gonad ikan S.putnamae sebesar 3,08%, sedangkan ikan S.obtusatta sebesar 3,44%. Fekunditas ikan betina S.putnamae berkisar 12.500-20.338 butir, sedangkan ikan betina S.obtusatta berkisar 18.277- 20.133 butir. Diameter telur ikan alu-alu berkisar 0,1-0,5 mm, dengan telur kecil berkisar 0,1-0,2 mm, telur sedang berkisar 0,3-0,4 mm, dan telur besar berkisar 0,5 mm. Berdasarkan pada pola sebaran diameter telur maka dapat disimpulkan bahwa ikan alu alu termasuk dalam kelompok ikan pemijah serentak (whole spawner).

Biodiversitas Ikan di Danau Gatal Kabupaten Rokan Hilir Rizqi, Edsa; Efawani, Efawani; Efizon, Deni
Ilmu Perairan (Aquatic Science) Vol. 11 No. 1 (2023): Maret
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Danau Gatal merupakan danau alami yang menerima air dari Sungai Rokan saat musim hujan. Danau ini dihuni oleh banyak spesies ikan. Namun, informasi mengenai jenis ikan yang ada di kawasan tersebut masih terbatas. Untuk mengetahui spesies ikan yang ada di Danau Gatal, penelitian dilakukan pada November 2021 s/d Februari 2022. Pengambilan sampel ikan dilakukan seminggu sekali/bulan hingga tidak ditemukan spesies baru. Ikan ditangkap menggunakan alat pemancing, jaring, dan bubu, sampel ikan kemudian diidentifikasi. Hasil penelitian menunjukkan bahwa ikan yang tertangkap terdiri dari 3 ordo, 13 famili, 14 marga, dan 15 spesies. Keanekaragaman jenis ikan (H’) di Danau Gatal sebesar 3,47, indeks dominansi (C) sebesar 0,19 dan keseragaman (E) sebesar 0,52. Nilai kualitas air danau adalah sebagai berikut: suhu 28oC-32oC, kecerahan 39-45 cm, kedalaman 109-111 cm, pH 6, oksigen terlarut 3,9-4,3 mg/L, dan CO2 5,89-7,99 mg/L. Berdasarkan nilai indeks keanekaragaman ikan di Danau Gatal tergolong rendah. Beberapa ikan belum pernah ditemukan di danau itu sebelumnya, yaitu sepimping, kipper, selais, dan kapar.

Studi Komparatif Kondisi Darah Pangasianodon hypophthalmus yang Dipelihara pada Keramba Jaring Apung di Sungai Siak dan Kolam Terpal dengan Manipulasi Fotoperiod Simanjuntak, Joyce; Windarti, Windarti; Efawani, Efawani
Ilmu Perairan (Aquatic Science) Vol. 11 No. 1 (2023): Maret
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Pangasianodon hypophthalmus merupakan ikan nokturnal dan ikan yang dipelihara dalam penyinaran yang dimanipulasi dapat mempengaruhi fisiologi ikan secara umum, termasuk kondisi hematologinya. Penelitian bertujuan untuk mengetahui kondisi hematologi ikan yang dipelihara dengan fotoperiode terkendali dan ikan dari keramba jaring apung di Sungai Siak telah dilakukan pada bulan Agustus - Desember 2019. Metode Rancangan Acak Lengkap untuk menerapkan manipulasi fotoperiode, dengan 3 perlakuan yaitu 24 D (24 jam gelap), 18G6T (18 jam gelap dan 6 jam terang), dan 12G12T (12 jam gelap dan 24 jam terang), 3 ulangan. Ikan dipelihara di kolam terpal (70 x 50 x 60 cm) berisi air 150 L dan dilengkapi dengan pompa sirkulasi dan aerator. Terdapat 30 ikan/kolam (7,5 inci dan sekitar 4 g BB). Ikan diberi pakan pelet ikan komersial sebanyak 3 kali/hari dan pakan yang diberikan adalah 4% dari berat ikan/hari. Ikan dari keramba jaring di Sungai Siak dipelihara dengan fotoperiode alami. Parameter yang diukur adalah jumlah sel eritrosit dan leukosit, kadar hematokrit dan leukosit serta diferensiasi leukosit. Hasil menunjukkan bahwa kondisi darah ikan pada semua perlakuan dan ikan dari Sungai Siak hampir sama. Kondisi darah mereka menunjukkan bahwa mereka sehat. Jumlah eritrosit dan leukosit berkisar antara 1.646.632 - 2.753.333 dan 54.732 - 55.654 sel/mm3. Kadar hematokrit dan leukokrit masing-masing 23-36,2% dan 1,1-2,3%. Persentase masing-masing sel leukosit adalah limfosit 71,33% - 82,33%, trombosit 4,67-18,67%, monosit 4,67 - 17,33% dan neutrofil 0 - 1,00%. Secara umum, data yang diperoleh dari penelitian ini menunjukkan bahwa manipulasi fotoperiode tidak berpengaruh negatif terhadap kondisi darah Pangasius sp.

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