Crude substrate analysis of site 1 revealed that a great part of the material retained by the 4 mm screen was composed of coarse wood debris. There was some shell debris, a few rocks and a few pieces of metal. The material retained by the 2 mm and 1 mm screens was also in great part made up of wood debris. The remaining material was mostly fine mud (Table 1).

Crude substrate analysis of site 2 revealed that the material retained by the 4 mm screen was a mixture of shell, rock and wood. The material retained in the 2 mm and 1 mm screens was a mixture of shell and sand. The remaining material was mostly fine sand (Table 1).

Crude benthos analysis

For site 1, a total of 21 species were identified, and a total of 208 individual animals were counted (Table 2). Among these species, segmented worms were the most difficult to identify and so were not assigned a species name. Clam species included Axinopsida serricata, Parvalucina tenuisculpta, Acila castrensis, a Macoma species (?) and a little brown species, the first being the dominant species. Of the three species of snails, two species were identified as resembling Nassarius mendiuls, and Ophiodermella cancellata. All brittle stars were identified as juvenile Amphiodia urtica. One side swimmer, genus Corophium, 1 clam shrimp, family Philomedidae, 1 round worm, phylum Nematoda, and 1 sand star, Luidia foliolata were also identified. Figure 3 demonstrates the distribution of animals under their general headings. Segmented worms were dominant, followed by clams, and then brittle stars.

For site 2, a total of 25 species were identified, and a total of 487 individuals were counted (Table 3). Clam species included Parvalucina tenuisculpta, Axinopsida serricata, Mysella tumida, Nuculana homata, and a Macoma species (?), the first being the dominant species, followed closely by Axinopsida serricata. All brittle stars were again all Amphiodia urtica, but not all were juveniles, many being full grown individuals. The snails, class Gastropoda, with two unidentified species, clam shrimp, the two species being Euphilomedes producta and another Euphilomedes species, 1 crab, of the Pinnexa species, 3 tooth shells, class Scaphopoda, and 1 clawed crawler, order Tanaid were identified. Figure 4 demonstrates the distribution of animals under their general headings. Brittle stars were dominant, followed by clams, then segmented worms.

Margalef's diversity index showed little variation between the two sites (Table 4), however overall numbers of individuals was significant. Site 2 had over double the number of individuals of site 1. Both my sampling and the science camp sampling showed greater biomass in site 2 than site 1.