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Journal : Jurnal Zona

Batas aman konsumsi ikan tongkol Pasar Dupa Pekanbaru ditinjau dari kandungan logam Pb dan Cu Fitria Roza; Efriyeldi Efriyeldi; Rasoel Hamidy
Jurnal Zona Vol 2, No 1 (2018)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/jz.v2i1.17

Abstract

Based on toxicology viewpoint, heavy metals can be divided into 2 types. The first type is essential heavy metals, which is in a certain amount is needed by living organisms, but in excessive amounts can cause toxic effects, such as Zn, Cu, Fe, Co and Mn. The second type is non-essential, which is in the organism body is still not known the benefit of this heavy metals even it can be become a toxic in our body, such as Hg, Cd, Pb and Cr.The purpose of this research is to 1) analyzing the concentration of heavy metals Pb and Cu  on the tuna fish which is sold in the Dupa Market Pekanbaru, and 2)analyzing the content of heavy metals Pb and Cu on Tuna,whether it has exceeded or not the threshold of SNI 2009. The study has been conducted in June to July 2015 in Dupa Market Pekanbaru City. The method used in this study is a survey method. The result showed that heavy metals Pb and  Cu have the highest metal content are derived from Sibolga waters. The heavy metals content of  tuna in  Dupa Market of Pekanbaru were Pb of 1 – 3.98 ug/g and Cu of 0.22  - 0.93 ug/g,. The Safety limit consumption of tuna in Dupa Market Pekanbaru are Pb of 3.89 kg/week and Cu of 2456.76 kg/week. Based on this results showed the status for heavy metals of Pb and Cu on Tuna fish that sold at Dupa Market Pekanbaru is still safe and consumable.
Hubungan kondisi tutupan karang dengan kepadatan megabentos di Pulau Pandan Provinsi Sumatera Barat Raja Rahmita; Efriyeldi Efriyeldi; Thamrin Thamrin
Jurnal Zona Vol 6, No 1 (2022)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/zona.v6i1.52

Abstract

This research was conducted in February 2021 in the waters of Pandan Island, West Sumatra Province. This study aims to determine the relationship between coral cover and the density of megabenthos found in the Pandan Island area. The method used in this study is a survey method. Coral cover data was collected using the LIT (Line Intercept Transect) method and megabenthos data was collected using the Benthos Belt Transect method. The results showed that Pandan Island had a good percentage of coral cover. The highest density of megabenthos was trokha snails found at each station, while the lowest density was Acanthaster planci which was only found at three stations and had a percentage of coral cover that had an influence on megabenthos density. Then it was also found that there was a strong negative relationship between coral cover and non-economic megabenthos, which indicated that there was an effect of the percentage of coral cover on both economic and non-economical megabenthos.
Analisis densitas Zooxanthella pada karang Acropora sp di Perairan Pulau Talam Tapanuli Tengah Provinsi Sumatera Utara Novri Ditama Syafni; Thamrin Thamrin; Efriyeldi Efriyeldi
Jurnal Zona Vol 6, No 2 (2022)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/zona.v6i2.62

Abstract

Coral reefs are a unique ecosystem of tropical waters that have physical function as a beach protector with its nature that can reduce the energy of waves moving towards the coast. Coral reef ecosystems are a good places for spawning, nurturing and food sources for fish. The aim of this research was to determine the density of zooxanthella on coral Acropora sp based on different depths. The method that used in this research was a survey method by taking coral samples using purposive sampling technique, then the samples were analyzed and the data was discussed descriptively at the Marine Biology Laboratory, Faculty of Fisheries and Marine, Riau University. The results of this research on the waters of Talam Island obtained a brightness up to 100% of depth, a current velocity was 0.05–0.10 m/s, temperature ranging from 30-32 0C, salinity of 34 o/oo and pH ranging from 7.2–7.6. The corals that used as research objects for zooxanthella density were taken at a depth of 3 m, 5 m, and 7 m, namely the coral Acropora sp. The results showed that the average zooxanthella density on Acropora sp coral at a depth of 3 meters was 6.35x106 cells/cm2, a depth of 5 meters was 2.63x106 cells/cm2, and 1.95x106 cells/cm2 at a depth of 7 meters. Based on observations, the density zooxanthella was decreased by increasing depth.
Co-Authors ', Zefendra ', Zulkifli AA Sudharmawan, AA Abdullah, Ikhlas Abiyu Rohid Adani Fatahilal Arifin Adila, Melin Adiyatma, Patwa Afrizal Tanjung Agnesia, Yohana Agus Mandar, Agus Agus Sutikno Agusti, Dianda Roaana Agusti, Dinda Roanna Ahmad Pasmuji Ahmadryadi_ahmadryadi Ahmadryadi_ahmadryadi Akmal Hawari Alfiana, Dewi Alghani, Muhammad Roif Alpian Alya, Alya Ananda, Nahdya Nasri Andreas Situmorang Andrew ST OS Andri Hendrizal Andrito, Wahyudi Angelia E Bernike Zebua Anggina, Viona Novi ani ani Anugrah, Muhammad Dea Aprizon Putra Aras Mulyadi Arbianti, Purnama Ardiana, Eka Ariaz, Panji Ahmad Arif Rahman Hakim Arifin, Adani Fatahilal Arlius Arlius, Arlius Arniati, Dina Asma Husna Putri Asma Ul Husna Putri Ayuni, Putri Bagas Ariya Pambudi Bahari, Sandy Bahruddin Batubara, Ummi Mardhiah Bintal Amin Bona Juandi Bonawi Sihombing Bonita Tiolina Exaudi Budijono, Budijono Burhan Marbun Cahyo, Bintang Dwi Clara Yolandika Cut Shifa Nedi Dame, Jupparoh Caisar Van Dandi Arianto Pelly David Raymond Sianturi Dedi Afandi Defri Yoza Dela Haryani Dermawan, Ernanda Putra Desmarina, Y. Despela, Despela Dessy Yosswaty Dessy Yoswaty Dessyka Febria, Dessyka Destriana Destriana Dewi Alfiana Dewi, Delviana Dianda Roanna Agusti Dietriech Geoffrey Bengen Doni Gunawan Tampubolon Dwigantara, M. Fadhol Eko Prianto, Eko Elfind Laoli Elfis Suanto Elizal, Elizal Endi Setiadi Eni Sumiarsih Enny Herawaty Simamora Erick Palatema Esti Nur Rahayu Esti Nur Rahayu Exaudi, Bonita Tiolina Fachry Abda El Rahman Fajriani Ananda Fajriani, Annisa Farona, Fella Fazli Pasha Amri Febrianto Roby Mukhti Fernando, Muhammad Zebi Fia Novianty Fitria Roza Fitriani, Ersa Friska Maulidah Fuadi, Indra Gavion Roston Sitepu Ginting, Dya Indriati Br Ginting, T.B. Gita Purnama Sari, Gita Purnama Gusfi, Melly Hadi Sastranegara Hadiyatma, Patwa Halida Sisda Harahap Hanryani, Putri Hapzi Ali Harahap, Anugrah Setiadari Hardianto Andita Harry Leonardo Barutu Hasan, Masyhuda Hasanah, Siti Umiyatul Hasyim, Ardhan Fadhlani Hendra Taufik Herrys V Silalahi Hersa, Tania Hesty Widyaningsih Homsatun, Nuning Hutomo, Ragil Tribhakti Ida Ayu Putu Sri Widnyani Ikhsan Setiawan Ilham hidayat Ilham Ilahi Imanuel, Andrean Nggara Imran , Imran Imran Imran Indra Bayu Pratama Indradewa, Rhian Inel Vivi Elvia Inka Wahyuni Intan, Selpia Irvina Nurachmi Irwan Effendi Iskan Fami Jumaidi Isnaini, Siti Joko Samiaji Josua Simanjuntak, Josua Judika Nursiani Sipahutar Jufri Jufri Jufri Jufri Junika Cecelia Putri Jupri, Tahany Nur Fadhilah Jupri, Tahany Nur Fadhillah Kaharudin, Zakaria Karnila, Rahman Karnila Kartina ' Khairunnisa Khairunnisa Khawarizmi, Dannes M. Kholida, Azzahra Kristoper Aritonang Laila Langsana Laksono Trisnantoro Langsana, Laila Laoli, Elfind Lee, Seung Hun Lianov, Dea Lie Othman Lieng, Lieng Lubis, Abdillah Lucky Syarif Lulu Mayna Nabilla M, Ridwan Rafsyanjani. M. Fadhol Dwigantara M. Subkhan Riza Maria Erna Martha, Rezky Dwi Matondang, Ridwan Rafsyanjani Maulana, Agung A. Mayrany, Sri Eva Meitasuri, Gevi Mia Fatma R Miswadi Miswadi Mubarak Mubarak Mubarak Mubarak Muhammad Aulia Rahman Muhammad Farhan Muhammad Rafsan Zain Muhammad Rizki Fadly Muhammad Rizky Rinaldi Muhammad Rusdi Muhammad Sabirin Muhammad Syarif Muhammad Zebi Fernando Muhammad Zebi Fernando Muhammad Zulkifli, Muhammad Mukhlis Alfarys Musrifin Galib Musrifin Ghalib Musrifin Musrifin Nababan, Sitty Mey Nabila, Chici Nabilah Jauharah Nadeak, Paulinus Nadida, Putri Nadiyatus Sholihat Nadratul Jamila Nasution, Fadli Ripai Nasution, Muhammad Rasid Naufal Sidqi Nawari Nawari Nawari Nawari, Nawari Noel GM Situmorang Novia Suci Yanti Novri Ditama Syafni Nuning Homsatun Nurafni, Melia Nurmalahayati, Yasinta Nursyirwani, Nursyirwani Oktari, Mela Oktaria, Rusiani Pambudi, Bagas Ariya Panggabean, Iis Panggabean, Iis Apriati Panji Ahmad Ariaz Patwa Hadiyatma Paul Rozeki Sinaga Pohan, Rizal Suardiman Pradini, Ulfa Rizki Pramita, Wisnu Pratama, Muhammad Dandy Syifa Prayitno, Betari Erlinda Putri Ayuni Putri Rifdayati Putri, Dinda Maharani Putri, Rahmi Putri, Rahmi Delima Putrianfi, Nadhifah Asilah Rafsyanjani M, Ridwan Rahayunigtyas, Putri Rahma Eka Putri Rahmadhani, Tami Fitri Rahmi Susanti Rahmita, R. Raja Rahmita Ramadani Safitri Ramadhan, A.R Ramadhan, A.R. Ramadhan, Muhammad Farizqy Rangga Wardana Rasoel Hamidy Razid, Muhamad Renata, Vivien Reny Cristina Naibaho RIDWAN AFFANDI Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rifda Syofiana R Rifdayati, Putri Rini, Yulia Sapta Rivaldi, Rahmat Rizki Dwi Yezelkiel Rizki, A. Romie Jhonnerie Ronal Kurniawan Rosiana, Kenny S. Pane, Rolis Sabirin, Muhammad Safatriani Safatriani Safitri, Winda Santi Maya Sari Saputra, Rengki Sari, D.J. Sari, Dwi Julita Sari, Lita Sari, Nova Iman Savita, Dinda Sihombing, Kelvin Simamora, Enny Herawati Siregar, , Yusni Ikhwan Siregar, Ali Mora Hadamean Siregar, Rafly Fadiansyah Siregar, Rifa Ghina Aulia Siti Anisah Siti Fatonah Siti Hasanah Siti Umiyatul Hasanah Sitorus, Tiroy Sofyan H. Siregar Sofyan Husein Siregar Sonya Marunjung P.Hsb Sri Murtin Sufaidah, Siti Nur Sujianto Sujianto Sujianto Sujianto Sukendi Sukendi Sulistio, Hendra Tri Suparno . Suwondo Suwondo Suzila ' Syafrhani, Wan Nabila Syafrizal Syafrizal Syafruddin Nasution Syahril Nedi Syamsiar, Syamsiar Syawfy Luthfiandra Taat Mujaid Arifin Tania Hersa Tanjung, Lismawati Tengku Mutia Smita Dwivayana Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Tri Lestari Tri Prartono Triatama, Putri Zulfa Trisla Warningsih Uswatun Hasanah Vichi Apridianti Vivien Renata Wahyu Novra Wanda Wahyudi Wahyudi Wanda Syahrian Wardana, Rangga Wulan Cempaka Sari.S Yahya Benardus Sihombing Yanti, D.H. Yehezkiel, Rizki Dwi Yeli Hartuti Yetti Elfina Yohanna Siagian Yona, Fitria Mai Yosua Afrianus P Yulinda, Emelda Yusni Ikhwan Siregar Zain, Rahmita Firda Zakaria Kaharudin Zaki, Raihan Zientika, Zientika Zulhendri Zulhendri Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli