In temperate (colder) water regions (Pacific Northwest, Western Canada & Alaska, California, Northeast US & Eastern Canada, South Atlantic States, and Eastern Atlantic and Mediterranean), REEF asks surveyors to also monitor a select regional list of invertebrates and algae. This is in addition to monitoring all fish that are seen during a survey.
In these regions, surveyors have the option to conduct a Fish Only survey, an Invertebrates (and algae) Only survey, or both Fish and Invertebrates survey.










