Species in the phylum Arthropoda are very diverse with wide ecological distribution. They are ectotherms that have typical features that include bodies segmented in head, thorax and abdomen, chitinous exoskeletons and jointed appendages. The goal of our research is to compare the species diversity of diurnal and nocturnal arthropods in areas bordering the Hudson River in Jersey City. The prediction favors higher diurnal species diversity over nocturnal species diversity. Species diversity will be measured by calculating the Simpsons or Shannon Diversity Index. Species richness and abundance will be made through random quadrant sampling. One or two samples of each species will be collected using methods such as netting, beat sheeting, trapping, leaf litter sifting, and blacklighting. Samples collected will be photographed and their taxonomic identification will be done using traditional field guides, internet resources or taxonomic apps such as iNaturalist. They will be labeled with sam