iOS Application to Determine If a Marine Species Is Appropriate Size to Be Harvested

Overview

In wildlife resource management it is a concern that marine organisms are being harvested at inappropriate sizes, gender, and times of year. Blue crabs (Callinectes sapidus) being such a sought after source of both recreational and commercial harvesting experience this issue drastically. Most recreational crabbers do not have an efficient, reliable, cost-free, and hands-free method to measure their catch. Along with this, these crabbers’ inexperience make common commercial measuring methods insufficient (calipers, eyeballing, etc.). The purpose of this project was to develop an iOS application that would measure a blue crab and determine if the crab was large enough to, given NJ parameters, harvest. The trial and error format of experimentation was conducted in the following manner: developed an “AppDelegate” and “ViewController” class on XCode (the Swift IDE). Built the code on an iPhone 14 and tested for errors. Identified errors, recoded, and built again. Once this cycle was completed, the actual length of 500 blue crabs was determined using a caliper. Scanned the 500 blue crabs using the application and determined percent error of the application. The results showed that the application was accurate in measuring blue crabs with a 95% confidence.

Competition history

• AJAS 2024 Category not listed

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