| Wonder of the ocean nitrogen to phosphorus ratio (N/P =16) | Contents of "Marine Chemistry" | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1103 | Course 'Chemical Oceanography (by Ooki) Index' |
| Wonder of the ocean nitrogen to phosphorus ratio (N/P =16) | Previous Course (Model calculation of Primary production in the sea (analysis task)) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1519 | Course 'Model calculation of Primary production in the sea (analysis task)' |
| Wonder of the ocean nitrogen to phosphorus ratio (N/P =16) | Next Course (Oceanographic Observation Map) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1521 | Course ' Oceanographic Observation Map' |
| Wonder of the ocean nitrogen to phosphorus ratio (N/P =16) | Japanese | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=257 | Course '海洋の窒素とリン比率（N/P =16）の不思議' |
| Oceanographic Observation Map | Contents of "Marine Chemistry" | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1103 | Course 'Chemical Oceanography (by Ooki) Index' |
| Oceanographic Observation Map | Previous Course (Wonder of the ocean nitrogen to phosphorus ratio (N/P =16)) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1520 | Course ' Wonder of the ocean nitrogen to phosphorus ratio (N/P =16)' |
| Oceanographic Observation Map | Next Course (X-Y plots of N and P in the entire ocean) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1522 | Course ' X-Y plots of N and P in the entire ocean ' |
| Oceanographic Observation Map | Japanese | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=264 | Course '海洋観測マップ' |
| X-Y plots of N and P in the entire ocean | Contents of "Marine Chemistry" | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1103 | Course 'Chemical Oceanography (by Ooki) Index' |
| X-Y plots of N and P in the entire ocean | Previous Course (Oceanographic Observation Maps) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1521 | Course ' Oceanographic Observation Map' |
| X-Y plots of N and P in the entire ocean | Next Course（X-Y plots of Phosphate (P) and Oxygen consumption (AOU)) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1523 | Course ' No.266 X-Y plots of Phosphate (P) and Oxygen consumption (AOU) ' |
| X-Y plots of N and P in the entire ocean | Japanese | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=265 | Course '全海洋のNとPのXYプロット' |
| No.266 X-Y plots of Phosphate (P) and Oxygen consumption (AOU) | Contents of "Marine Chemistry" | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1103 | Course 'Chemical Oceanography (by Ooki) Index' |
| No.266 X-Y plots of Phosphate (P) and Oxygen consumption (AOU) | X-Y plots of N and P in the entire ocean | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1522 | Course ' X-Y plots of N and P in the entire ocean ' |
| No.266 X-Y plots of Phosphate (P) and Oxygen consumption (AOU) | 次のコース（World Ocean Atlasの気候値データをダウンロード）へ | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1537 | Course not exists |
| No.266 X-Y plots of Phosphate (P) and Oxygen consumption (AOU) | Japanese | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=266 | Course 'リン酸（P)と酸素消費量（AOU）のXYプロット' |
| Chemistry of Marine Sediments (Introduction) | Go to the "Ocean Chemistry" contents | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1103 | Course 'Chemical Oceanography (by Ooki) Index' |
| Chemistry of Marine Sediments (Introduction) | Go to the previous course (World Ocean Atlas climate value data download) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1537 | Course not exists |
| Chemistry of Marine Sediments (Introduction) | Go to the next course (Marine Sediments and Biodisturbance) | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=1525 | Course 'Marine Sediments and Biodisturbance' |
| Chemistry of Marine Sediments (Introduction) | japanese | https://repun-app.fish.hokudai.ac.jp/course/view.php?id=269 | Course '海洋の堆積物の化学（はじめに）' |
