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Growth Rate and Mortality of Giant Freshwater Prawn (Macrobrachium rosenbergii) In Kuala Cenaku Village, Riau Province Ade Hermawita; Muhammad Fauzi; Deni Efizon; Windarti Windarti
Jurnal Perikanan dan Kelautan Vol 27, No 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.3.280-285

The growth rate and mortality rate of giant prawns (Macrobrachium rosenbergii) in the Kuala Cenaku River, Indragiri Hulu Regency, Riau Province were carried out based on carapace length frequency data collected from May to July 2020. This study aims at the growth rate and mortality of giant prawns in the Kuala Cenaku River. For estimating dynamic population, data were analysed by using FiSAT II. The growth parameter of tiger shrimp was 0,78/year with carapace asymptotic length (L) of 84,8 mm, total mortality rate (Z), natural mortality rate (M), fishing mortality rate (F) were 2,35/year and 1,16/year, 1,19/year, respectively, while and exploitation rate (E) estimated 0,50. The exploitation rate of Tiger Freshwater Prawn in Kuala Cenaku River was fully exploited and tend to overexploited so that it needed to manage wisely and carefully

Population Dynamics of Narrow-Bareed Mackerel (Scomberomorus commersonii) and Wolf Herring (Chirocentrus dorab) in Malacca Strait Waters Wilda Mardiyah; Muhammad Fauzi; Deni Efizon
Jurnal Perikanan dan Kelautan Vol 27, No 3 (2022): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.3.358-365

Narrow barred Spanish mackerel and wolf herring is an important commodity that has commercialized intensively to fulfill the needs of the market, both domestic and export. Research has been conducted from June-August 2020 in Malacca Strait Waters. The purpose of this study is to analyze the dynamics of population parameters such as growth rate, mortality rate, exploitation rates, and recruitment patterns of narrow barred mackerel (Scomberomorus commerson) and wolf herring (Chirocentrus dorab). The sample size of spanish mackerel was taken at random from the purse seiner and gillnet catches. Data of size obtained were used for the analysis of population dynamics parameters. Some population dynamics parameters were estimated using the program FISAT II. Von Bertalanffy growth parameters of spanish mackerel were derived L and growth rate (K),for males 772.8 mm and 0.5/year and for females 979.65 mm and 1,7/year, and wolf herring was derived L and growth rate (K), for males 871.5 mm and 0.59/year and for females 1048.95 mm and 0.65/year, respectively. Total mortality (Z) of Spanish mackerel males and females was 0.61/year and 4.07/year and wolf herring males and females were 0.36/year and 1,3/year. Fishing mortality rate of Spanish mackerel (F) for males and females was 0,13/year and 3.07/year high than the natural mortality rate (M) 0.48/year and 1/year and the wolf herring fishing mortality rate for males and females was 0.16/year and 0.78/year lower than natural mortality rate (M) 0.52/year. Exploitation rate (E) of Spanish mackerel for males and females was 0.21/year and 0.75/year and wolf herring for males and females was 0.44/ year and 0,6/year, that almost full exploitation when compared with the optimum of 0.40. The recruitment pattern of Spanish mackerel for males was (14.59%) in June and for females was (26.84%) in August and wolf herring for males was (16.02) in June and for females was (28.63%) in July.

DIVERSITY OF FISH SPECIES IN THE KEBUN NOPI LAKE, KUANTAN MUDIK SUBDISTRICT, KUANTAN SINGINGI REGENCY, RIAU Jihan Nabila Sajidah; Deni Efizon; Ridwan Manda Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol. 9 No. 2 (2022) Edisi 2 Juli s/d Desember 2022
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Kebun Nopi Lake is a man-made lake that is constructed by damming theKuningRiver. This lake is inhabited by many type of fish species. However, the information on thetype of fish in that area is limited. A study aims to identify and inventory the types of fishcaught in the Kebun Nopi Lake has been conducted on March 2022. Sampling was carriedout 3 times. The fish was captured using nets, small fish scoop , fishing rods and all of fishcaptured were taken and identified. Results shown that there were 5 orders, 9 families, 17genus and 23 species of fishes present in the lake. The largest family was Cyprinidae that wasconsisted of 12 species. the value of species diversity (H') was -1.615 (low), uniformity index(E) -0.52 (low) and species dominance (C) 0.1649 (low). The condition of water quality inshown that temperature was 320C-340C, depth 150 cm–161 cm, brightness 16.5 cm–21 cm,pH 4-6, dissolved oxygen 4.52–5.81 mg/L and free carbon dioxide 15.22–19.97 mg/L.Based on the diversity index, the fish diversity in the Kebun Nopi Lake can be classified aslow.Keywords:man-made lake, Kuning River, Fish Diversity, Water Quality1)Student of the Faculty of Fishheries and Marine Science, Universitas Riau2)Lecturer at the Faculty of Fishheries and Marine Science, Universitas Riau

Biodiversitas Ikan di Danau Gatal Kabupaten Rokan Hilir Edsa Nur Rizqi; Efawani Efawani; Deni Efizon
Ilmu Perairan (Aquatic Science) Vol 11, No 1 (2023): Maret
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.11.1.p.1-7

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 (Hâ€™) 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

Percentage of the bycatch and discard composition in artisanal bottom trap fisheries Nofrizal Nofrizal; Afni Afriani; Deni Efizon; Romie Jhonnerie
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Data on bycatch in the fishing effort required to manage fisheries resources. Unfortunately, the data on small-scale and traditional fisheries is still lacking. It makes it challenging to make fishing policies and regulations. Survey activities and experimental fishing were conducted to determine and analyze the composition of the main catch, bycatch and discarded by the local fisher's bottom traps in Sibolga, North Sumatra, Indonesia. Five units of the trap with a size of 150 cm x 100 cm x 50 cm (length x width x height) were used to collect fish data. These five trap units operated in the fishing ground, where local fishers usually operate their fishing gear. The fishing operation carried out within 1 mile of the coastline with water depths ranging from 7-10 meters. The duration of trap setting around 5-7 days for each fishing operation. A motorboat operated with a weight of 5.8 GT. The results showed that the total bottom trap catch consisted of 329 individuals with a total weight of 151.4 kg and 12 demersal fish species. The main catch was 148 individuals (88.9 kg), or 44.7% of the total catch during the experiment i.e. Chepalapholis urodeta, Ephinephelus areolatus, Epinephelus chlorostigma, Plectropomus leopardus, Ephinepelus coioides, Lates calcarifer, Lutjanus malabaricus, and Lutjanus erytropterus. The bycatch was 151 individuals (57.1 kg) or 46.1% i.e. Lethrinus obsoletus, Lutjanus ehrenbergii, Acanthurus auranticavus, Platax teira, Nemipterus japonicus, Scarus rivulatus, Lutjanus johnii, Siganus canaliculatus, Caesio cuning, and Taeniura lymma.While the discarded catch amounted to 30 individuals (5.4 kg) or 9.2% i.e. Naso brevirostris, Diodon holocanthus, and Diadema setosum. The bycatch utilization obtained by fishers was 83.4%, and the unutilized was 16.6%. The percentage of fish sizes worthy for consumption was 135 individuals (74.6%), and the size unworthy for consumption was 46 individuals (25.4%).Keywords:Fishing groundFishing gear Fishing operation Main catchTrap

Analisis dinamika populasi ikan selar kuning (Selaroides leptolepis) dalam upaya pengelolaan sumberdaya ikan pelagis kecil di perairan Bintan, Provinsi Kepulauan Riau Septiyawati Septiyawati; Muhammad Fauzi; Deni Efizon
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

This raw fish is used as fisheries products such as salted fish, grilled fish, fishmeal and surimi. This study aims to analyze mortality and recruitment of yellowstipe scad (Selaroides leptolepis) and the information about management of small pelagic fisheries resources in Bintan Waters. This research was carried out in February-June 2019 at the Barek Motor Fish Landing Area (TPI) with fishing areas in Bintan waters. The number of fish studied was 2.550 with a length of 102-215 mm and a weight of 15-102 gr. The highest recruitment peak occurred in Mei of 18.11% and June of 19.48%. The highest and lowest condition factors are 0.83 and 1.09. The total mortality rate (Z) of yellow strait fish is 4.61 per year with a natural mortality rate (M) of 1.66 per year and the capture mortality rate of 2.95 per year so that the exploitation rate is 0.63. The death of yellowstipe scade in the Bintan Sea most of the caused by fishing activities (F) of 2.95 per year.Keywords:Yellowstipe scad Bintan WatersRecrutmentCondition factorsMortalityABSTRAKIkan selar kuning merupakan salah satu jenis ikan ekonomis penting. Ikan ini banyak dimanfaatkan sebagai bahan baku produk olahan perikanan seperti ikan asin, ikan bakar, pindang, tepung ikan dan surimi. Penelitian ini bertujuan untuk menganalisis, mortalitas dan rekrutmen ikan selar kuning (Selaroides leptolepis) dan informasi tentang pengelolaan sumberdaya ikan pelagis kecil di Perairan Bintan. Penelitian ini telah dilaksanakan bulan Februari-Juni 2019 di Tempat Pendaratan Ikan (TPI) Barek Motor dengan wilayah penangkapan di perairan Bintan. Jumlah ikan yang diteliti 2.550 ekor dengan panjang 102-215 mm dan berat 15-102 gr. Puncak rekrutmen tertinggi terjadi bulan Mei sebesar 18,11% dan Juni sebesar 19,48%,. Nilai tertinggi dan terendah faktor kondisi yaitu 0,82 dan 1,09. Laju mortalitas total (Z) ikan selar kuning 4,61 per tahun dengan laju mortalitas alami (M) 1,66 per tahun dan laju mortalitas penangkapan 2,95 per tahun sehingga diperoleh laju eksploitasi 0,63. Kematian ikan selar kuning di laut Bintan sebagian besar diakibatkan oleh aktivitas penangkapan (F) sebesar 2,95 per tahun.Kata kunci:Ikan selar kuning Perairan Bintan Rekrutmen Faktor kondisi Mortalitas

The Value of the Benefits of Mangrove Ecosystems in the Village of Pulau Cawan, Mandah, Indragiri Hilir District Nurul Aulia; Trisla Warningsih; Deni Efizon
Jurnal Perikanan dan Kelautan Vol 28, No 2 (2023): June 2023
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.28.2.214-218

The purpose of this study is to know the value of an economic benefit of the total mangrove forest located in the village of Pulau Cawan Indragiri Hilir regency, namely using the concept of valuation economic in calculating the benefits of mangrove existence that has the potential of existing natural resources. This research was conducted in August 2020, The observations made in the field use observations and direct interviews with the local government and the community around the village of Pulau Cawan. The results of the research obtained showed the ecosystem of the mangrove forest area of the village of Pulau Cawan which has an area of ±3,401.66 ha, and there is a value of existing benefits of IDR 21.200.000 ha/year. The factors that will affect the willingness to pay (WTP) of the community around mangrove forests in the form of the respondent's income level, the respondent's education level, the respondent's gender, the respondent's age, and the respondent's family dependents. The benefit value of the existence of The Village of Pulau Cawan can be used as a basis for decision-making by the local government and the surrounding community in the management of policies and utilization of mangrove forests in maintaining and preserving mangrove forest ecosystems for the sustainability of the future with the results obtained in knowing the existence of the value function of a mangrove ecosystem, it can result in the formulation of the mangrove forest conservation reserve area of Pulau Cawan village, namely the implementation and development of the “Ecu-Edu Wisata Mangrove” (EEWM) concept plan.

Analisis dinamika populasi ikan selar kuning (Selaroides leptolepis) dalam upaya pengelolaan sumberdaya ikan pelagis kecil di perairan Bintan, Provinsi Kepulauan Riau Septiyawati Septiyawati; Muhammad Fauzi; Deni Efizon
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.17351

This raw fish is used as fisheries products such as salted fish, grilled fish, fishmeal and surimi. This study aims to analyze mortality and recruitment of yellowstipe scad (Selaroides leptolepis) and the information about management of small pelagic fisheries resources in Bintan Waters. This research was carried out in February-June 2019 at the Barek Motor Fish Landing Area (TPI) with fishing areas in Bintan waters. The number of fish studied was 2.550 with a length of 102-215 mm and a weight of 15-102 gr. The highest recruitment peak occurred in Mei of 18.11% and June of 19.48%. The highest and lowest condition factors are 0.83 and 1.09. The total mortality rate (Z) of yellow strait fish is 4.61 per year with a natural mortality rate (M) of 1.66 per year and the capture mortality rate of 2.95 per year so that the exploitation rate is 0.63. The death of yellowstipe scade in the Bintan Sea most of the caused by fishing activities (F) of 2.95 per year.Keywords:Yellowstipe scad Bintan WatersRecrutmentCondition factorsMortalityABSTRAKIkan selar kuning merupakan salah satu jenis ikan ekonomis penting. Ikan ini banyak dimanfaatkan sebagai bahan baku produk olahan perikanan seperti ikan asin, ikan bakar, pindang, tepung ikan dan surimi. Penelitian ini bertujuan untuk menganalisis, mortalitas dan rekrutmen ikan selar kuning (Selaroides leptolepis) dan informasi tentang pengelolaan sumberdaya ikan pelagis kecil di Perairan Bintan. Penelitian ini telah dilaksanakan bulan Februari-Juni 2019 di Tempat Pendaratan Ikan (TPI) Barek Motor dengan wilayah penangkapan di perairan Bintan. Jumlah ikan yang diteliti 2.550 ekor dengan panjang 102-215 mm dan berat 15-102 gr. Puncak rekrutmen tertinggi terjadi bulan Mei sebesar 18,11% dan Juni sebesar 19,48%,. Nilai tertinggi dan terendah faktor kondisi yaitu 0,82 dan 1,09. Laju mortalitas total (Z) ikan selar kuning 4,61 per tahun dengan laju mortalitas alami (M) 1,66 per tahun dan laju mortalitas penangkapan 2,95 per tahun sehingga diperoleh laju eksploitasi 0,63. Kematian ikan selar kuning di laut Bintan sebagian besar diakibatkan oleh aktivitas penangkapan (F) sebesar 2,95 per tahun.Kata kunci:Ikan selar kuning Perairan Bintan Rekrutmen Faktor kondisi Mortalitas

Percentage of the bycatch and discard composition in artisanal bottom trap fisheries Nofrizal Nofrizal; Afni Afriani; Deni Efizon; Romie Jhonnerie
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.26106

Data on bycatch in the fishing effort required to manage fisheries resources. Unfortunately, the data on small-scale and traditional fisheries is still lacking. It makes it challenging to make fishing policies and regulations. Survey activities and experimental fishing were conducted to determine and analyze the composition of the main catch, bycatch and discarded by the local fisher's bottom traps in Sibolga, North Sumatra, Indonesia. Five units of the trap with a size of 150 cm x 100 cm x 50 cm (length x width x height) were used to collect fish data. These five trap units operated in the fishing ground, where local fishers usually operate their fishing gear. The fishing operation carried out within 1 mile of the coastline with water depths ranging from 7-10 meters. The duration of trap setting around 5-7 days for each fishing operation. A motorboat operated with a weight of 5.8 GT. The results showed that the total bottom trap catch consisted of 329 individuals with a total weight of 151.4 kg and 12 demersal fish species. The main catch was 148 individuals (88.9 kg), or 44.7% of the total catch during the experiment i.e. Chepalapholis urodeta, Ephinephelus areolatus, Epinephelus chlorostigma, Plectropomus leopardus, Ephinepelus coioides, Lates calcarifer, Lutjanus malabaricus, and Lutjanus erytropterus. The bycatch was 151 individuals (57.1 kg) or 46.1% i.e. Lethrinus obsoletus, Lutjanus ehrenbergii, Acanthurus auranticavus, Platax teira, Nemipterus japonicus, Scarus rivulatus, Lutjanus johnii, Siganus canaliculatus, Caesio cuning, and Taeniura lymma.While the discarded catch amounted to 30 individuals (5.4 kg) or 9.2% i.e. Naso brevirostris, Diodon holocanthus, and Diadema setosum. The bycatch utilization obtained by fishers was 83.4%, and the unutilized was 16.6%. The percentage of fish sizes worthy for consumption was 135 individuals (74.6%), and the size unworthy for consumption was 46 individuals (25.4%).Keywords:Fishing groundFishing gear Fishing operation Main catchTrap

Comparative Study on Stomach Content Analysis of Caged and Free Living Puntius schwanefeldii in the Koto Panjang Dam, Kampar Regency Riau Anggi Erywiyani Hasibuan; Deni Efizon; Efawani Efawani
Berkala Perikanan Terubuk Vol 51, No 3 (2023): November
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.51.1.2133-2140

Puntius schawanefeldii is one of common fish in the Koto Panjang Dam. This fish commonly present around the floating cage culture area. Small P. schawanefeldii sometimes enter the culture cages and become trapped in the cages as they grew up. Farmers used to remove the trapped fish and put them in the cage around the cage culture area. The net caged P. schawanefeldii were not given any food, but they were able to grow. To understand the feed consumed by the caged fish and compare it with the free living fish, a study on the stomach content analysis of the caged and free living fish has been conducted on September 2022. Samplings were conducted 2 times, once/2 weeks and the stomach contents was analyzed using a volumetric method. There were 139 fishes captured. The stomach 104 fishes were full or partly full, while the stomach content of other 35 fishes were less than 25% and could not be analyzed. Results shown the stomach content of the caged and free living fish were similar, there were algae and pellets (they could not be separated), fish feed pellet remains and fish tissue remains. The Preponderance Index of each food type present in the caged fish are pellets 71.24%, mixed algae and pellets 26.76% and fish tissue remains 2.00%, while those of the free living fish are pellets 16.28%, mixed algae and pellets 70.63%, and fish tissue remains 11.44%. Data obtained in this research indicate that the caged fish receive fish feed pellets that spilled out from the culture floating nets in the surrounding area.

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