The Suspected Contradictory Role of Parental Care in the Adaption of Planktonic Calanoida to Temporary Freshwater

Calanoida have the highest number of species among Copepoda in marine plankton, but not fresh water, where greatest are Cyclopoida. Freshwater Cyclopoida also live more freshwater sites than Calanoida. This could be a consequence an invasion by before Similar to Cyclopoida, different from Calanoida, females produce egg sacs and care for eggs. strategy is common all suggesting that evolution parental obliged adaption conquer water. survive adverse conditions as resting life-cycle constraint obliges eggs their mother’s death wait benthos certain period. The necessity completing embryonic development hatching far protection may responsible relatively lower evolutionary success water compared (which rest juveniles, thus protecting any moment development). Therefore, brooding appears solution Calanoida’s final establishment dispersion on bottom after during period probably weak point competition with