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Karakteristik Biologi Populasi Kerang Sepetang (Pharella acutidens) di Ekosistem Mangrove Dumai, Riau Efriyeldi, Efriyeldi; Bengen, Dietriech G; Affandi, Ridwan; Prartono, Tri
Berkala Perikanan Terubuk Vol 40, No 1 (2012): Februari 2012
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (833.315 KB) | DOI: 10.31258/terubuk.40.1.%p

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Characteristic of population biology of the “sepetang” clam has been studied inDumai mangrove ecosystem from November 2010 to October 2011. This researchwas to study the patterns of the population growth, mortality and recruitment ofthe clam P. acutidens. Sampling was monthlyfrom plot 1 m x 1 m quadratictransects. The result showed that growth pattern of P. acutidens was negativeallometric with asymptotic length (L∞) 92.71 mm.The annual growth coefficient(K) and total mortalitywere 0.59 and 1.87 per year, respectively. The naturalmortality was probably related to environmental condition. The recruitmentoccurred every month, the peaks occurred on April (15.93%) and August(13.16%).
Karakteristik Habitat dan Populasi Kerang Bambu (Solen lamarckii) di Zona Intertidal Desa Teluk Lancar Kecamatan Bantan Kabupaten Bengkalis Ramadhan, Muhammad Farizqy; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol 22, No 1 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.1.36-43

Abstract

Kerang bambu merupakan salah satu jenis moluska dari famili solenidae yang mempunyainilai ekonomis. Penelitian ini dilaksanakan pada bulan Februari 2017 bertempatdi Pantai Desa Teluk Lancar Kecamatan Bantan Kabupaten Bengkalis. Penelitian inibertujuan untuk mengetahui karakteristik habitat, kelimpahan dan pola distribusi kerangbambu. Metode yang digunakan dalam penelitian ini adalah metode survei. Penentuanlokasi pengambilan sampel dilakukan secara purposive sampling. Pengukurankualitas perairan dilakukan secara in situ dan ex situ yang terdiri dari parameter fisikadan kimia perairan. Karakteristik habitat kerang bambu yaitu jenis substratnya pasirdengan klasifikasi pasir sangat halus. Bahan organik sedimen tergolong rendah dansangat rendah 0,907-1,749 %. Padatan tersuspensi tergolong sangat tinggi 223-1830mg/l. Parameter kualitas perairan masih mendukung untuk kehidupan kerang.Kelimpahan rata-rata adalah 0,88/m2, kelimpahan tertinggi terdapat di subzona 5(zona lower) atau surut terendah dan kelimpahan terendah pada subzona 3 (zona middle)atau zona tengah intertidal. Pola distribusi rata-rata bersifat mengelompok. Ukurankerang yang ditemukan memiliki panjang 45-93 mm dengan berat 1,91-9,67 g.
ABUNDANCE AND DISTRIBUTION PATTERNS OF GASTROPODA ON MANGROVE FORESTIN THE AREA OF DESA ANAK SETATAHDISTRICTS RANGSANG BARAT KEPUALAUAN MERANTI REGENCY RIAU PROVINCE Wahyuni, Inka; Mulyadi, Aras; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT             This research was conducted in April 2019 with the aim of finding out the abundance and distribution patterns of gastropods in the mangroves of Anak Setatah Village.Determination of the sampling location is done by purposive sampling, which is to determine the sampling point intentionally based on certain objectives.Sampling was carried out in the mangrove area of Anak Setatah Village with different mangrove forest conditions and gastropod identification was carried out at the Marine Biology Laboratory, Faculty of Fisheries and Maritime Affairs, Riau University.The results showed that the total number of species found were 8 gastropod species.In the mangrove mono species 4 gastropod species were found and the mangrove multi species species were found 8 gastropod species, while the highest gastropod abundance was found in the mangrove mono species at observation station IV, which was 23.16 ind/m2 and the lowest was in the multi species mangrove area. at observation station 1 which is 5.36 ind/m2. Key word :Abundance, Distribution Patterns, Anak Setatah Village
Distribution Pattern and Sex Ratio of Lokan Shellsfish (Batissa violacea) in the waters of the Padang Birik-birik Village, North Pariaman District, Pariaman City Adila, Melin; Tanjung, Afrizal; Efriyeldi, Efriyeldi
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 This research was conducted in January 2019 at the Padang Birik Village, North Pariaman.The purpose of this research was to determine the pattern of distribution, abundance, sex ratio and frequency of lokan shellfish (B. violacea) size. The methods of this research was the survey methods,where the research station consists of 3 stations that werestation 1 in the mangrove area of Padang Birik-birik Village, station 2 was located in the estuary area close to the beach of Padang Birik -birik Village, station 3 was located adjacent to the coastal residential area in the village of Padang Birik –birik.Analysis was carried out in the Marine Biology Laboratory, University of Riau. The results of this study are the distribution pattern in the mangrove ecosystem clustered and the distribution pattern in the residential area were evenly distributed. The highest abundance was found in the mangrove ecosystem and the lowest was in residential areas. Sex ratio are generally male and female are balanced (1: 1.02). The most commonly found class of shellfish size 38,5-49,5 mm.Keywords: Lokan shells (B. Violacea), distribution patterns, abundance, sex ratio, frequency of size
ANALYSIS OF OIL CONTENT IN SEDIMENTS AND RELATIONSHIP WITH MAKROZOOBENTHOS ABUNDANCE IN SUNGAI PAKNING WATERS OF BENGKALIS REGENCY RIAU PROVINCE Rosiana, Kenny; Amin, Bintal; Efriyeldi, Efriyeldi
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           This research was conducted in January - February 2019. The purpose of this research was to analyze the oil consentration in sediments, species and abundance of macrozoobenthos, the relationship between the oil content in sediments and the abundance of macrozoobenthos. Four sampling stations with three replications in each station were surveyed. The results showed that the average oil consentration in sediments in the Stasions 1, 2 and 3 has exceeded the threshold level of the Department of Water Resources Quality Assurance / Quality Control Program which is> 1000 ppm which means that these stasions have been polluted by oil. Whilst at station 4 is still within safe limits.The types of macrozoobentos found in Sungai Pakning waters were Coenobita cavipes, Telescopium telescopium, Strigatella litterata, Cyclograpsus, Nassarius echinatus, Anadara granosa, Antoctodea, Littoraria scabra, Strigatella paupercula, Ancila, Cerithidea obtusa, and Nassarius olivaceus. The highest abundance was at Sei Selari port while the lowest abundance is around the tourist area of Pangkalan Jambi Mangrove Forest. Based on simple linear regression, the relationship between the oil content in sediment with the abundance of macrozoobentos y = 22.541-0.0191x with the coefficient of determination (R²) = 0.2437 and the value of the correlation coefficient (r) = 0.49. The value of r states a moderate relationship with a constant value b which is negative which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment. Keyword: Sungai Pakning, Oil, Sediment, Macrozoobenthos
MAPPING OF MANGROVES CHANGE AREA AND THE DENSITY OF MANGROVE IN ANAK SETATAH VILLAGE SUB-DISTRIC OF RANGSANG BARAT DISTRICT OF KEPULAUAN MERANTI RIAU PROVINCE Harahap, Halida Sisda; Elizal, Elizal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT This research was conducted in February 2019 in Anak Setatah village, Sub-distric of West Rangsang, District of Kepulauan Meranti, Riau Province and was aimed to find out the change of area and the density of mangrove this time. The research was conducted by survey method. The quantitative method was used on the change of mangrove forest area observation. The result of image data processing showed that mangroves area in Anak Setatah Village had decrease of area in 2006-2011 about 3.77 ha and there was an increase of area in 2011-2016 about 116.88 ha. The density of mangrove in Anak Setatah Village has the tight and medium density type. According to Mangrove Quality Standards, the density are still in Good category.  Key words : Mangrove, Change of Area, Density, Anak Setatah
ABUDANCE AND DISTRIBUSION PATTERN OF GASTROPOD AT INTERTIDAL ZONE KALANGAN COAST TAPANULI TENGAH SUMATERA UTARA PROVINCE Sipahutar, Judika Nursiani; Efriyeldi, Efriyeldi; Mulyadi, Aras
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTCoastal ecosystems are the confluence of land and sea that are still influenced by sea characteristics such as tides, sea breezes and salt intrusion and sedimentation processes.The intertidal zone is part of a coastal ecosystem in which many marine biota live such as the gastropods of the mollusk phylum. The purpose of this study was to determine the type and abundance as well as the distribution pattern of gastropods in the intertidal zone of Kalangan Beach in Central Tapanuli, North Sumatra. This research was conducted in April 2019. From the results of the study it was found that in the intertidal zone of the Kalangan Beach 10 gastropods were found, namely Clypeomorus sp, Littorina sp, Polinices, Clypeomorus bifascita, Nassa francolinus, Morula granulata, Phasianella solida, Clypeomorus batillariaeformis, Cerithiium sp,and Faunus ater. At station I with an abundance of 5 ind / m2 which is relatively low. At station II with an abundance value of 2 ind / m2 classified as very low, and at station III with an abundance value of 43 ind / m2 classified as abundant. The distribution pattern of gastropods in the intertidal zone of Kalangan Beach at each station is clustered. Keywords:gastropods, abundance, distribution pattern 
Comparative Morphometric Rhizophora Apiculata Leaf And Fruit In Two Areas With Anthropogenic Activities Different In Pesisir Dumai Barat Kota Dumai ProvinsiRiau Sianturi, David Raymond; Efriyeldi, Efriyeldi; Mulyadi, Aras
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTMorphometrics is a field that deals with variations and changes in the form (size and shape) of an organism or object. Anthropogenic is a human activity not only limited to the use or utilization of coastal resources, but also can be restorative and protective, thus causing complex disruption. The purpose of this study was to determine the morphometric differences of the leaves and fruits of R. apiculata mangroves in two regions with different anthropogenic activities in the mangrove ecosystem of Dumai City. This research was carried out in May 2019. From the results of the study it was found that in areas polluted by anthropogenic activity the average morphometrics of fruit (length and width) and leaves (length, width and length of the stems) Rhizophora apiculata were lower than those in the area not polluted by anthropogenic activity. At station I the oil content ranged from 1162.11 to 1934.2 ppm classified as polluted and at station II ranged from 672.81 – 1082.30 ppm classified as not polluted. The content of organic matter at station I ranged from 11.03 to 13.73%, which was classified as low, while at station II it ranged from 19.95 to 23.77% which was classified as moderate. Keywords:Dumai, Anthropogenic, Mangrove, Morphometric
ANALYSIS DISTRIBUTION OF MANGROVES IN THE BANTAN DISTRICT, RIAU PROVINCE USING SATELLITE IMAGE DATA LANDSAT 8 S. Pane, Rolis; Mubarak, Mubarak; Efriyeldi, Efriyeldi
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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ABSTRACTThis study aims to determine the distribution of mangroves and map the mangrove using satellite image data in the district of Bantan, Riau Province. Determination of the sampling location with purposive sampling with 3 station point, namely Jangkang Village, Selat Baru Village and Bantan Tengah Village, Bantan District. This research was carried out in April 2018 in Bantan District. Then analyzed in the Oceanographic Physics Laboratory Department of Marine Sciences, Riau University. The results of analysis of February 2018 landsat 8 image recording were 184.251 ha. The highest tree density in3 station points, namely Rhizophora apiculata, namely 500 ind/ha and the lowest tree density, Bruguiera gymnorrhizaand Xylocarpus granatum with 33.33 ind/ha. The highest seedling density wasRhizophora apiculata, wich is 2.000 ind/ha and the lowest density Bruguiera gymnorrhizawith 133.33 ind/ha. The number of mangrove species found were Rhizophora apiculata, Avicennia alba, Sonneratia ovata, Rhizophora mucronata, Xylocarpus granatum, and Bruguiera gymnorrhiza.      Keyword: image data, mangrove, Bantan District
ANALYZE RELATIONSHIPS MANGROVE DENSITY AND GASTROPOD ABUNDANCE IN KAYU ARA PERMAI VILLAGE SUNGAI APIT SUBDISTRICT SIAK DISTRICT RIAU PROVINCE Syahrian, Wanda; Zulkifli, Zulkifli; Efriyeldi, Efriyeldi
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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ABSTRACT The research was conducted on August 2017 in mangove ecosystem of Kayu Ara Permai Village Sungai Apit Sub-district Riau Province. This research aims to analyze mangrove density, the type and abundance of gastropod and relationships between mangrove density, organic content in sediment and gastropod abundance. The method used in this research was survey method. Sampling mangrove species was conducted with line transect plot and sampling organic content and gastropods  by using 1 x 1 m2 quadrant plot. The result showed that mangrove density in Kayu Ara Permai varied from 1733-3533 ind/ha. The gastropod abundance varied from 3.67-13 ind/m2, organic content in sediment varied from 0.20-0.13%, diversity index (H’) 0.5-1.12, dominance index (C) 0.52-0.69  and evenness index (E) 0.24-0.52. Relationships between mangrove density and gastropod abundance were 43.20%, relationships mangrove density and organic content in sediment were 18.65%. While relationships between organic content and gastropod abundance were 15.79%.Key Words: Kayu Ara Permai, mangrove density, organic content  and gastropod abundance
Co-Authors Adila, Melin Afrizal Tanjung Alfarys, Mukhlis Alghani, Muhammad Roif Andrito, Wahyudi Ani Aras Mulyadi Arbianti, Purnama Arifin, Adani Fatahilal Arniati, Dina Azizah, Diana Bintal Amin Dedi Afandi Desmerina, Y Despala Dessyka Febria, Dessyka Dewi, Delviana Dietriech G Bengen Elfis Suanto Elizal Elizal, Elizal Fernando, Muhammad Zebi Ferona, Fella Ginting, T.B. Hanryani, Putri Harahap, Halida Sisda Hartuti, Yeli Hasyim, Ardhan Fadhlani Hendra Irvina Nurrachmi Irwan Irwan Isnaini, Siti Joko Samiaji Jufri Jufri Kaharudin, Zakaria Khairunnisa Khairunnisa Langsana, Laila Lianov, Dea Marbun, Burhan Maria Erna Kustyawati Mubarak Mubarak Muhammad Zulkifli, Muhammad Musrifin Galib Musrifin, Musrifin Nababan, Sitty Mey Nasri Ananda, Nahdya Nursyirwani Nursyirwani Panggabean, Iis Apriati Paulinus Pohan, Rizal Suardiman Prayitno, Betari Erlinda Putri, Rahmi Delima Rafsyanjani, Ridwan Rahmita, R. Ramadhan, A.R. Ramadhan, Muhammad Farizqy Rasoel Hamidy Razid, Muhamad Ridwan Affandi Rifardi Rifardi, Rifardi Riza, M. Subkhan Rizki, A. Romie Jhonnerie Rosiana, Kenny S. Pane, Rolis Sari, D.J. Sari, Lita Savita, Dinda Sianturi, David Raymond Sihombing, Kelvin Sipahutar, Judika Nursiani Siregar, Ali Mora Hadamean Siti Fatonah Sofyan Husein Siregar Sufaidah, Siti Nur Sujianto Sujianto Syafrhani, Wan Nabila syafrizal Syafruddin Nasution Syahrian, Wanda Syahril Nedi Tengku Mutia Smita Dwivayana, Tengku Thamrin Thamrin TRI PRARTONO Wahyu Novra Wanda Wahyudi Wahyuni, Inka Yanti, D.H. Zaki, Raihan Zientika Zulkarnaini Zulkarnaini Zulkifli Zulkifli