Assessing the Environmental Health of Salish Creek: An Analysis of Water Quality for Salmon

Abstract

This study investigates potential variations in pH, dissolved CO₂ (mg L⁻¹), oxygen levels (mg L⁻¹), and temperature (°C) across the years 2021, 2022, and 2023 in Salish Creek, offering valuable insights into the context of Salmon development. The analysis employed the Welch test for each metric, accompanied by post hoc Games-Howell tests, utilizing data collected during the fall of 2021, 2022, and  023 by the Biol 342 class under the guidance of Professor Leander. Results reveal a significant difference in pH and oxygen levels, while no significant difference was observed for CO₂ or temperature. Post hoc tests indicate a noteworthy distinction in pH levels between 2021 and 2022, as well as 2021 and 2023. Furthermore, a significant difference in oxygen levels was identified between 2021 and 2022.