Date,Species,% cover 9/13/07,Ascidia ceretodes,0 10/11/07,Ascidia ceretodes,1.25 11/8/07,Ascidia ceretodes,0 12/7/07,Ascidia ceretodes,1 1/3/08,Ascidia ceretodes,14.375 1/31/08,Ascidia ceretodes,19.5 2/28/08,Ascidia ceretodes,0 3/27/08,Ascidia ceretodes,35.75 4/24/08,Ascidia ceretodes,32.5 5/22/08,Ascidia ceretodes,18.75 6/19/08,Ascidia ceretodes,18.125 7/17/08,Ascidia ceretodes,13.125 8/14/08,Ascidia ceretodes,34.375 9/18/08,Ascidia ceretodes,0.75 10/16/08,Ascidia ceretodes,4 11/13/08,Ascidia ceretodes,13.875 12/11/08,Ascidia ceretodes,33.75 1/17/09,Ascidia ceretodes,48.75 2/12/09,Ascidia ceretodes,43.375 3/11/09,Ascidia ceretodes,51.875 4/8/09,Ascidia ceretodes,58.125 5/6/09,Ascidia ceretodes,61.25 6/3/09,Ascidia ceretodes,53.75 7/2/09,Ascidia ceretodes,46.875 7/30/09,Ascidia ceretodes,38.5 8/27/09,Ascidia ceretodes,41.25 9/24/09,Ascidia ceretodes,0 10/22/09,Ascidia ceretodes,1.75 11/19/09,Ascidia ceretodes,0.125 12/17/09,Ascidia ceretodes,5 1/14/10,Ascidia ceretodes,11.375 2/11/10,Ascidia ceretodes,17.75 3/11/10,Ascidia ceretodes,32.25 4/1/10,Ascidia ceretodes,49.75 4/29/10,Ascidia ceretodes,49.25 5/27/10,Ascidia ceretodes,58.5 6/30/10,Ascidia ceretodes,62.5 7/22/10,Ascidia ceretodes,42.5 8/19/10,Ascidia ceretodes,51.875 9/16/10,Ascidia ceretodes,0 10/14/10,Ascidia ceretodes,0 12/27/10,Ascidia ceretodes,1.5 4/7/11,Ascidia ceretodes,31.25 9/13/07,Ciona intestinalis,0 10/11/07,Ciona intestinalis,11.25 11/8/07,Ciona intestinalis,22.25 12/7/07,Ciona intestinalis,20.625 1/3/08,Ciona intestinalis,3.75 1/31/08,Ciona intestinalis,0 2/28/08,Ciona intestinalis,0.75 3/27/08,Ciona intestinalis,0 4/24/08,Ciona intestinalis,0 5/22/08,Ciona intestinalis,0 6/19/08,Ciona intestinalis,0 7/17/08,Ciona intestinalis,0 8/14/08,Ciona intestinalis,0 9/18/08,Ciona intestinalis,0 10/16/08,Ciona intestinalis,2.5 11/13/08,Ciona intestinalis,2.25 12/11/08,Ciona intestinalis,3.75 1/17/09,Ciona intestinalis,1.875 2/12/09,Ciona intestinalis,1 3/11/09,Ciona intestinalis,0 4/8/09,Ciona intestinalis,0 5/6/09,Ciona intestinalis,1.25 6/3/09,Ciona intestinalis,0 7/2/09,Ciona intestinalis,0 7/30/09,Ciona intestinalis,3.5 8/27/09,Ciona intestinalis,0 9/24/09,Ciona intestinalis,0 10/22/09,Ciona intestinalis,0 11/19/09,Ciona intestinalis,0 12/17/09,Ciona intestinalis,0 1/14/10,Ciona intestinalis,0 2/11/10,Ciona intestinalis,0 3/11/10,Ciona intestinalis,0 4/1/10,Ciona intestinalis,1.25 4/29/10,Ciona intestinalis,4 5/27/10,Ciona intestinalis,0 12/27/10,Ciona intestinalis,2.5 4/7/11,Ciona intestinalis,1.875