Observation of the fish                                                                >>>"Home"...)

                                                                                                             Observations:
Which fish shall we encounter?                          1st time:       2nd time:
     -by day at:      10 m (33 ft)  40 m (131 ft) 80 m (262 ft)  and 120 m (394 ft)      done              done
     -by night at:    10 m (33 ft)  30 m (98 ft)  and  50 m (164 ft)?                                      
     -by night at:     3 m (10 ft), from the side         done              done

        Which fish shall we encounter?

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