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RIVER RANGERS

RIVER RANGERS. OUR TRIP TO THE LITTLE SACKVILLE RIVER. Next. ELECTROSEIGNING FOR FISH. Ernie and Angela looking for fish. The electric current momentarily shocks the fish and Angela can scoop them up with her net. Unfortunately, we didn’t find any fish this day. Next.

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RIVER RANGERS

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  1. RIVER RANGERS OUR TRIP TO THE LITTLE SACKVILLE RIVER Next

  2. ELECTROSEIGNING FOR FISH • Ernie and Angela looking for fish. • The electric current momentarily shocks the fish and Angela can scoop them up with her net. • Unfortunately, we didn’t find any fish this day. Next

  3. MEASURING WATER VELOCITY • Flowing water adds oxygen to the water for the fish to breathe. • We found that the floating ball travelled between the stakes in seconds. Next

  4. LOOKING FOR BUGS • We scooped bugs out of the water with strainers and put them in plastic containers. • We were amazed at how many bugs we found. Next

  5. EXAMINING THE BUGS • We examined all the bugs and noticed the differences. • We used a bug wheel (and Ernie’s help) to identify them. • One of our favourite was the caddisfly nymph. Next

  6. EXAMINING THE FISH • We got to have a close up look at the eel in the fish bowl. • In the tank, we looked at and learned about white suckers, nine-spine sticklebacks, common shiners and creek chub. Next

  7. OBSERVATIONAL NOTES • We chose one fish in the tank to observe closely. • We made a sketch of our fish and made notes on it. • Don’t we look as if we are having fun! Next

  8. CHECKING THE ACID LEVEL • We tested various acids (lemon, vinegar) with litmus paper. • We dipped litmus paper in the river. • We checked the colour of the litmus paper with the chart. • The acidity of the river was 7. That’s good! Next

  9. WATER TEMPERATURE • Cool water has more oxygen for the fish than warm water. • We took the temperature of the river water in the sun and in the shade. • We found that the water was 10° in the sun and 9° or 10°

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