island      site_name          latitude      longitude      depth_feet    habitat_type             date  replicate    Clathromorphum_cover    grazed_score    quality_rank    grazed_cover_median    max_depth_grazed_mm    pit_volume_cm3    
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  1            100                     3               3               38                     1.399                  175.84            
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  2            100                     5               1               85.5                   1.765                  9537.75           
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  3            100                     4               2               63                     2                      392.5             
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  4            90                      5               1               85.5                   1.265                  528.148           
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  5            100                     5               1               85.5                   1.199                  14519.36          
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  6            90                      3               2               38                     1.066                  25.12             
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  7            95                      3               2               38                     0.4                    1155.52           
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  8            75                      3               1               38                     1.965                  508.68            
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  9            97                      5               1               85.5                   2.5                    0.294375          
Attu        Black Beach        52.9306       173.27942      30            Barren + kelp subsidy    2014-07-18  10           95                      5               1               85.5                   1.732                  510.25            
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  1            100                     5               1               85.5                   1.365                  54.4476           
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  2            100                     5               1               85.5                   nd                     6.1544            
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  3            100                     6               1               98                     0.266                  2564.595          
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  4            100                     6               1               98                     1.132                  464.3275          
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  5            100                     5               1               85.5                   6                      1931.1            
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  6            90                      4               1               63                     0.733                  249.2532          
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  7            95                      4               1               63                     nd                     104.6248          
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  8            100                     5               1               85.5                   1.299                  87.606            
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  9            100                     4               2               63                     0.466                  42.19375          
Attu        Site 6             52.91344      173.30659      30            Barren                   2014-07-19  10           75                      3               1               38                     1.199                  156.75822