This is something that was posted by gahardy. It's not what I was looking for but it is a reference to ropefish and brackish conditions.
Now one big lifestyle difference between the two genera is that while all species of Bichir are found always in freshwater well upstream in the rivers and lakes where they live throughout Africa, the Reedfishes are found in the brackish mouths of the rivers in their range as well as up river in the purely fresh water. Could it be that mild brackish conditions is the trigger to spawning? Has anyone working in the field with the Reedfish notice a greater number of young down river? I have searched for this information online but have found no reference to the differences, if any, in the behavior of Reedfishes up river (fresh) and down river (brackish).
Now one big lifestyle difference between the two genera is that while all species of Bichir are found always in freshwater well upstream in the rivers and lakes where they live throughout Africa, the Reedfishes are found in the brackish mouths of the rivers in their range as well as up river in the purely fresh water. Could it be that mild brackish conditions is the trigger to spawning? Has anyone working in the field with the Reedfish notice a greater number of young down river? I have searched for this information online but have found no reference to the differences, if any, in the behavior of Reedfishes up river (fresh) and down river (brackish).
