a quick intro what is eelgrass. a native marine plant, it's very important in the san francisco bay for fish rearing, food sources. it's considered an essential fish habitat by the national marine fish service, so importance were found. it does occur in very specific kinds of places, so it requires a sandy or muddy bottom, generally found between the mean low, low water line and approximately 1.5 meters below that. and that's because -- and that's because it's a plant, requires some light to grow, so the fine point where it does not want to be dried out during low tides but if it's too deep it does not get enough sunlight. so, sunlight is an important part of this, and one thing that can affect it is turbidity, something we looked at. and another thing, it does have seasonal growth, so grows a lot during the summer with sunlight, and die back in the winter where there is less sun. overview of eelgrass in clipper cove. as previously mentioned, eelgrass studies have been conducted almost annually since 1999 by caltran