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All Journal Berkala Perikanan Terubuk Jurnal Biologi Universitas Andalas Jurnal Optimasi Sistem Industri Bioeksperimen: Jurnal Penelitian Biologi Jurnal Penelitian Pendidikan IPA (JPPIPA) International Journal of Agricultural Sciences Jurnal Mantik Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks
Nofrita Nofrita
Biology Departement. Andalas University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Journal : Jurnal Biologi Universitas Andalas

 1 
Komunitas Makrozoobentos di Sungai Gua Pintu Ngalau pada Kawasan Karst di Sumatera Barat Husnul Mar’i; Izmiarti Izmiarti; Nofrita Nofrita
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.41-49.2017

Abstract

Pintu Ngalau cave is flowed by river from irrigated rice fields that flows into the cave. This cave has a source of organic matter derived from bats and swallow dirts, litter that falls on enterance of the cave and the organic material carried by the flow of the river. The study on the macrozoobenthos communities of river in Pintu Ngalau Cave has been conducted from October until November 2016. The study used survey method, where stratified random sampling was applied in three zones (light zone, dim zone and dark zone) at study site. Macrozoobenthos samples was collected by surber net. This study also measured the physic-chemical of water. The results showed the composition of macrozoobenthos in the Pintu Ngalau cave river consisted of 43 genera i.e Gastropods (2 genera), Hirudinea (2 genera), Insects (36 genera) and Oligochaetas (3 genera). Total density of macrozoobenthos in this site was 2100 ind/m2 and the highest density was found in dark zone. The highest total relative density (KR total=79,89%) on genus level at every zone was Hydropsyche. Diversity index of macrozoobenthos was classified as medium (H'=2.68) with evenness distribution was evenly (E=0.61) and no dominant genus (C=0.14). The existence of macrozoobenthos was not influenced by light intensity, but instead was more influence by the condition of the substrate and the flow of water in the cave.
Water Quality Bioassessment Using Macrozoobenthos In The Batang Arau River, Padang City Saidina Bima; Izmiarti Izmiarti; Nofrita Nofrita
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.70-77.2022

Abstract

Research on Water Quality Bioassessment Using Macrozoobenthic in the Batang Arau River, Padang City was carried out in March - September 2021. This study aims to determine the composition and structure of the macrozoobenthic community and water quality in the Batang Arau River based on the BMWP-ASPT index. This research uses the survey method and station determination by purposive sampling, based on environmental conditions. Macrozoobenthic samples were collected by using Surber net 30x30 cm2 and Eckman grab 15x15 cm2, and physical and chemical factors were also measured. The results showed that the macrozoobenthic communities found in the Batang Arau River were 37 genera with the composition of 6 genera Gastropods, 28 genera Insect, 2 genera Hirudinea, and 1 genus Oligochaeta. The total density of macrozoobenthic ranged from 140-1775 ind/m2 with the highest density at Station V and the lowest at Station III. The predominant genus (KR ≥ 10%) found at each station varied, Station I and Station II were Orthocladius and Caenis; Station III was Polypedium, Orthocladius, Baetis, and Elophila, Station IV was Orthocladius, Caenis, Erpobdella, Hellopdella, and Tubifex, and Station V was Melanoides. The diversity index of macrozoobenthic (H') in the Batang Arau River was 2.38 ranging from 0.5-2.57 classified as low to moderate, and the distribution of the macrozoobenthic population (E) is 0.65, ranging from 0.25-0.8 classified as uneven to equally. The water quality in the Batang Arau River based on the BMWP-ASPT index at Stations I and II are classified as unpolluted, Station III was lightly polluted, Station IV was moderately polluted, and Station V was heavily polluted.
SEBARAN SPASIAL SUHU PERMUKAAN LAUT DAN KLOROFIL-a PADA DAERAH PENANGKAPAN IKAN CAKALANG (Katsuwonus pelamis) DI PERAIRAN SUMATERA BARAT Nofrita Nofrita; Jabang Nurdin; Ramadani Fitra; Vivi Savitri; Andhani N. Bintari; Jauharah Saniyyah; Harry Sumartin
Jurnal Biologi Universitas Andalas Vol 12, No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.12.1.66-72.2024

Abstract

West Sumatra waters is one of the potential fishing grounds for skipjack tuna. Oceanographic factors become the primary factors that limit the distribution and abundance of fish. This research aims to understand the spatial distribution of chlorophyll-a and sea surface temperature, and their utility for estimating potential fishing areas in the waters of West Sumatra. The data collection of fish catching area coordinates was carried out from June to July 2023. The sea surface temperature and chlorophyll-a data were downloaded from the website http://oceancolor.gsfc.nasa.gov. The research results found that the sea surface temperature in the waters of West Sumatra from June to July 2023 ranged between 27.9°C to 33.5°C, with an average of 30.25°C, while the chlorophyll-a ranged from 0.014 mg/m3 to 1.684 mg/m3, with an average value of 0.9515 mg/m3. The potential fishing areas for Skipjack Tuna identified during the research in the waters of West Sumatra were around Siberut Island in the Mentawai Islands, at the coordinates of 98°98’15.43"E and 01°97’32.35"S 99°27’67.95"E and 01°98’71.43"S.
Co-Authors . Mansyurdin Andhani N. Bintari Berry Yuliandra Cindy Cindy Dahelmi Dahelmi Djong Hon Tjong Eli Ratni Elni Fatimah Fajri Hidayat Harry Sumartin Henny Herwina Husnul Mar’i Indra Junaidi Zakaria Irsyadul Halim Izmiarti Izmiarti, Izmiarti Jabang Nurdin Jabang Nurdin Jannati Aulah Janra, Muhammad Nazri Jasmi Jauharah Saniyyah Jefrial Santoso Jonrinaldi Kamil, Insannul Maliza, Rita Miftahul Ilmi Muhammad Idris Nabilah Rahmachila Azura Putra Santoso Putri Tria Santari Ramadani Fitra Riki Warman Saidina Bima Sulis Setiawati Syakira Tiara Rezvi Syamsuardi Syamsuardi Syandri, Hafrijal Vivi Savitri