Delta Smelt

Because of its one-year life cycle and relatively low fecundity, it is very susceptible to changes in the environmental conditions of its native habitat.

The delta smelt is a pelagic (lives in the open water column away from the bottom) and euryhaline species (tolerant of a wide salinity range). It has been collected from estuarine waters with salinities up to 14 parts per thousand. 

Damselfish

In order to avoid predators, many of these colorful fish have adapted to live among the deadly stinging tentacles of sea anemones.

Some members of damselfish family have a unique relationship with certain sea anemones, for they are able to dart away from predators and hide among the anemones’ stinging tentacles. This is made feasible resulting from the fact that the fish have exceptional chemicals in the covering of defensive bodily fluid on their figures. This makes them immune to the anemones’ stings.