| These predators are excluded from upstream tributaries by rapids and barrier waterfalls. |
| The primary example of this habitat occurs along the upper reaches of Accokeek Creek and its maze of tributaries. |
| In tributaries feeding the lake, brook trout competed with young bull trout for food and in the lake, lake trout preyed on bull trout. |
| One goal was to return fish to traditional spawning grounds in the upper reaches of the Clearwater tributaries, strengthening natural fish runs. |
| The screen fades to green, and the names of all 336 tributaries are slowly reeled off, in apparent contrast to the vagaries of story-telling. |
| The central floodplain is watered by the Chao Phraya River and its tributaries. |
