Effects of climate change on growth and otolith thermometry of sand whiting (Sillago ciliata) from eastern Australia ...

• Main Author: Tan, Melissa
• Format: Dataset
• Language: unknown
• Published: Mendeley Data 2024
• Subjects: Marine Biology; Ocean Acidification; Otoliths; Fisheries Science; Oxygen Isotope; Global Warming; Ocean acidification
• Online Access: https://dx.doi.org/10.17632/mhmsw4z45m; https://data.mendeley.com/datasets/mhmsw4z45m

This study investigated how a high-emissions scenario of future water temperature and ocean acidification will influence the somatic and otolith growth of an important fisheries species, sand whiting (Sillago ciliata), using an outdoor mesocosm system. The experiment included four treatments with an orthogonal combination of current [~22°C], and future [~25.0°C] predictions of water temperature and current [~8.13] and future [~7.83] pH. Fish length, weight, and otolith weight demonstrated a positive response to warmer water temperatures, but were not significantly influenced by increased ocean acidification. Stable oxygen isotopes within otolith material (δ18Ootolith) deposited during the 3-month experimental period, micro-milled from thin-sections and analysed via IRMS, displayed a negative relationship with water temperature that also varied between acidification treatments. The temperature-dependent fractionation model demonstrated a similar slope to that for inorganic aragonite and other fish species, ...