An assessment of water quality along the rivers loading to the Manado Bay, North Sulawesi, Indonesia
スポンサーリンク
概要
- 論文の詳細を見る
In the city of Manado, rivers are used for water drainage and sewer system of various wastewater discharges, including from toilets ; these rivers discharge their load to Manado Bay. Therefore it is extremely important to know the water quality of these rivers. In this study three selected rivers, Sungai Bailang (SB), S. Maasing (SM), and S. Tondano (ST), were assessed in regard to 5-days Biochemical Oxygen Demand (BOD_5), nitrate (NO_3^-), ortho phosphate (PO^<3->_4), total coliform (TC), Escherichia coli (EC), and total mercury (Hg-tot) to indicate loads of organic matter, inorganic nutrients, bacteria, and metals, respectively. Existing concentrations, variations with seasons (dry and wet), and pollution status of the rivers, are presented and discussed in this paper. Except the levels of TC and EC, which were high in all rivers and seasons, these parameters varied according to space (within the river and among the rivers) and the seasons. Average levels loaded to the bay for (1) organic were 15.30 mg/l of BOD_5 in the dry season and 7.52 mg/l of BOD_5 in wet season ; (2) inorganic of NO^-_3 and PO^<3->_4 were 2.01 mg/l of NO^-_3 and 1.71 mg/l of PO^<3->_4 in the dry season, and 1.44 mg/l of NO^-_3 and 2.20 mg/l of PO^<3->_4 in the wet season ; (3) Hg-tot in the water and the surface sediment of ST was 0.024 mg/l and 0.133 mg/kg in the dry season, and 0.081 mg/l and 0.130 mg/kg in the wet season. The level of Hg-tot accumulated in the marine bivalve, Soletellina sp., ranged between 0.012 and 0.124 mg/kg. Based on these results, the water quality of the rivers was assessed as polluted. This was perhaps attributable to the presence of input of wastewater discharging from residential sources of the city and from the hinterland agricultural area of Minahasa Regency (MR). This condition may further threaten the water quality of Manado Bay ; therefore, management measures are also identified and discussed.
- 東京大学の論文
- 2005-01-31
著者
-
宮崎 信之
国立科学博物館動物研究部
-
MIYAZAKI Nobuyuki
Ocean Research Institute, The University of Tokyo
-
宮崎 信之
東京大学海洋研究所大槌臨海研究センター
-
Arai Takaomi
Univ. Tokyo Iwate Jpn
-
Arai Takaomi
International Coastal Research Center Ocean Research Institute The University Of Tokyo
-
宮崎 信之
東大海洋研
-
宮崎 信之
東京大学海洋研究所
-
宮崎 信之
東大 海洋研
-
Miyazaki Nobuyuki
Center For International Cooperation Ocean Research Institute The University Of Tokyo
-
LASUT Markus
Integrated Tropical Coastal Zone Management, Asian Institute of Technology
-
JENSEN Kathe
Integrated Tropical Coastal Zone Management, Asian Institute of Technology
-
Jensen Kathe
Integrated Tropical Coastal Zone Management Asian Institute Of Technology:zoological Museum
-
Lasut Markus
Integrated Tropical Coastal Zone Management Asian Institute Of Technology:faculty Of Fisheries And M
-
Miyazaki Nobuyuki
Graduate School Of Frontier Sciences The University Of Tokyo
-
宮崎 信之
国立科学博物館・動物研究部
-
宮崎 信之
Department of Zoology, National Science Museum
関連論文
- Contamination status of butyltin compounds in Indonesian coastal waters
- Organotin Contaminations in Malaysia
- 奄美大島近海における鯨類の記録
- JSE(第66回)交流会 バイカルアザラシの行動と環境問題--バイカルアザラシとインフルエンザウィルスとの関係
- バイカルアザラシの行動と環境 (海洋人の会 夏季文化講演)
- Occurrence of estuarine and sea eels Anguilla japonica and a migrating silver eel Anguilla anguilla in the Tokyo Bay area, Japan
- Effect of long-term exposure to sulfides on taurine transporter gene expression in the gill of the deep-sea mussel Bathymodiolus platifrons, which harbors a methanotrophic symbiont
- Correspondence between otolith microstructual changes and early life history events in Anguilla marmorata leptocephali and glass eels
- 日本の太平洋沿岸産スジイルカの捕獲
- 紀伊半島沿岸における鯨類の捕獲記録
- 大阪湾における底質重金属濃度と底質環境との関係
- Otolith Sr:Ca ratios of freshwater goby Rhinogobius sp. TO indicating absence of sea migrating traits
- Distribution of Organotin Compounds in Representative Coastal Areas from Japan: A Review
- クジラ・イルカ・アザラシと環境汚染 : 有機塩素系化合物の蓄積と生物影響
- 室蘭沖で観察されたミンククジラとイシイルカの混成群
- 新潟県上越市の海岸に漂着したイシイルカ2例
- 人為環境改変のインパクト--カスピカイアザラシの危機 (総特集 海洋生命系のダイナミクス) -- (4章 変動系のダイナミクス--海洋生命系の変動は人類に何をもたらすか?)
- ワモンアザラシ, カスピカイアザラシおよびバイカルアザラシ研究の概説
- バイカル湖の生物多様性と環境--バイカルアザラシから地球規模の水汚染を考える (特集 沿岸海洋環境)
- バイカル湖に閉じこめられたアザラシの生活とその環境 (特集 バイカル湖の生物)
- バイカルアザラシ(Phoca sibirica)の咀嚼筋に関する機能形態学的検討
- Accumulation of Mercury, Cadmium and Lead in Tissues of Dall's Porpoise (Phocoenoides dalli) off Sanriku Coast in Japan
- Phylogenetic analyses in cetacean species of the family Delphinidae using a short wavelength sensitive opsin gene sequence
- Antibodies to Human-Related H3 Influenza A Virus in Baikal Seals (Phoca sibirica) and Ringed Seals (Phoca hispida) in Russia
- Influenza virus infection in seal (Phocidae) : seroepidemiological survey of influenza virus in Caspian seals(Phoca caspica)
- Serological Evidence of Transmission of Human Influenza A and B Viruses to Caspian Seals (Phoca caspica)
- アセチルコリンエステラーゼ活性阻害による水質評価
- 平成18年度水産学奨励賞受賞者(耳石解析による魚類の生活史と回遊履歴に関する研究) : 新井崇臣氏
- 大槌湾で採集されたサケの耳石微量元素分析
- Elemental composition in otoliths of surfperch, Ditrema temmincki
- Effects of triphenyltin exposure on the red alga Eucheuma denticulatum
- Organotin levels in bivalves in Southeast Asia
- Effects of tributyltin on the chlorophyll contents of marine microalga Tetraselmis tetrathele, Nannochloropsis oculata and Dunaliella sp.
- Biological effects of low concentrations of tributyltin on the caprellid amphipod Caprella danilevskii
- Migratory history and habitat use of Japanese eel Anguilla japonica in the Sanriku Coast of Japan
- Measurement of total mercury concentration in the water source pool of public drink water installations around Manado City, north Sulawesi, Indonesia
- Environmental history of Japanese eel, Anguilla japonica collected in Miyako Bay, northeastern Japan
- Bioavailability and effects of tributyltin in the caprellid amphipod, Caprella danilevskii: A review
- Occurrence of sea eels of Anguilla japonica along the Sanriku Coast of Japan
- 岩手県大槌湾, 山田湾および大船渡湾で採取した表層海水中のエストロゲン様物質
- 平成17年度日本水産学会関東支部シンポジウムの概要(支部のページ)
- 平成16年度日本水産学会関東支部シンポジウムの報告(支部のページ)
- Evidence of downstream migration of Sakhalin taimen, Hucho perryi, as revealed by Sr:Ca ratios of otolith
- Accumulation of trace elements and persistent organochlorines in resident and migratory waders from Calatagan Bay, Philippines
- Butyltin and phenyltin residues in water, sediment and biological samples collected from Otsuchi Bay, Japan
- 三陸から世界への発信をめざして--沿岸海洋研究の新しい試み (特集 沿岸海洋環境)
- 昭和基地周辺で捕獲した5頭のウェッデルアザラシの外部形態と臓器重量(英文)
- Growth history and migration of the threespine stickleback Gasterosteus aculeatus in Otsuchi Bay, northeastern Japan
- Migratory history of the threespine stickleback Gasterosteus aculeatus
- Comparison of habitat use during early life stage between ayu Plecoglossus altivelis and ice goby Leucopsarion petersi along the Sanriku Coast of Japan, as determined from otolith microchemistry
- 北部北海道産カマイルカ
- Accumulation of organochlorines in the fin whale Balaenoptera physalus and the finless porpoise Neophocaena phocaenoides from the Ibaraki coast, Japan
- Identifying sea-run brown trout, Salmo trutta, using Sr : Ca ratios of otolith
- Antifouling biocides contamination in sediment of coastal waters from Japan (Special section for JSPS multilateral core university program on "coastal marine science": proceedings on 4th JSPS-VAST joint seminar on 'coastal marine science', Hai Phong, Viet
- Artisanal gold mining related mercury pollution in Ratatotok area of North Sulawesi, Indonesia
- Total mercury contents in plankton collected from Talawaan Watershed, north Sulawesi, Indonesia
- HEAVY METAL DISTRIBUTION IN WEDDELL SEALS (LEPTONYCHOTES WEDDELLII) FROM THE ANTARCTIC DURING JARE-32 (14th Symposium on Polar Biology)
- Determination of natural estrogens in the sediment of coastal area in Japan
- Skeletal development of the striped dolphin(Stenella coeruleoalba)in Japanese waters
- COMPARISON OF TRACE ELEMENT CONCENTRATIONS IN TISSUES OF THE CHICK AND ADULT ADELIE PENGUINS (17th Symposium on Polar Biology)
- 大型鯨類研究における海底ケーブルの利用法 (総特集 4D地球・海洋・環境科学研究の幕開け(下)海底ケーブルの科学的利用による海洋観測の新時代)
- 海棲哺乳類が直面している有機塩素系化合物による汚染 (総特集 水産資源の管理と保全) -- (1章 海域環境保全へ向けての展望)
- 海洋汚染
- 小型歯鯨類の頭蓋骨形態 : 日本産コビレゴンドウにみられる分類学的問題の一考察
- 日本近海産ネズミイルカの成長と頭骨の形態〔英文〕
- 海産哺乳動物--鯨類・鰭脚類など (北太平洋の生物)
- Determination of trace elements in otoliths of chum salmon Oncorhynchus keta by laser ablation-ICP-mass spectrometry
- Life history and migration of Sakhalin taimen, Hucho perryi, caught from Lake Akkeshi in eastern Hokkaido, Japan, as revealed by Sr:Ca ratios of otoliths
- 海洋環境国際ワークショップ講演要旨
- Phylogeography and population structure of the Dall's porpoise, Phocoenoides dalli, in Japanese waters revealed by mitochondrial DNA
- FEEDING RATE AND DAILY ENERGY INTAKE OF DALL'S PORPOISE IN THE NORTHEASTERN SEA OF JAPAN (19th Symposium on Polar Biology)
- 日本の太平洋沿岸スジイルカの捕獲〔英文〕 (富士・箱根・伊豆の自然史科学的総合研究-2-)
- 紀伊半島沿岸における鯨類の捕獲記録〔英文〕 (南アルプスと紀伊半島を中心とする地域の自然史科学的総合研究-2-)
- An assessment of water quality along the rivers loading to the Manado Bay, North Sulawesi, Indonesia
- 日本近海産ネズミイルカの成長と頭骨の形態
- Migratory history of Rhinogobius sp. OR morphotype "Shimahire" as revealed by otolith Sr:Ca ratios
- Growth effect on the uptake and elimination of trace metals in the abalones Haliotis
- Overview of the Workshop
- Swim speed and acceleration measurements of short-finned pilot whales (Globicephala macrorhynchus) in Hawai'i
- Migration of anadromous white-spotted charr Salvelinus leucomaenis, as determined by otolith strontium : calcium ratios
- バイオロギング手法の海洋資源への利用
- Heavy metal contamination in Indonesian coastal marine ecosystems : A historical perspective (Proceedings of the Horiba International Conference "New Direction of Ocean Research in the Western Pacific" : Past, Present and Future of UNESCO/IOC/WESTPAC Acti
- Comparison of the amount of thiotrophic symbionts in the deep-sea mussel Bathymodiolus septemdierum under different sulfide levels using fluorescent in situ hybridization
- Effect of salinity on strontium : calcium ratios in the otoliths of Sakhalin taimen, Hucho perryi
- Feeding events of Japanese lates Lates japonicus detected by a high-speed video camera and three-axis micro-acceleration data-logger
- 私たちはイルカから何を学べるか (特集 イルカ--愛らしき海の使者からのメッセージ)
- Proposal for marine mammal research in Asia-Oceania regions (Proceedings of International Commemorative Symposium--70th Anniversary of The Japanese Society of Fisheries Science)
- Ocean, man and environment : A message from dolphins and seals
- 第2回海洋環境国際ワークショップ講演要旨
- Preface
- MARINE POLLUTION STUDY USING MARINE MAMMALS