Dissolved oxygen as a constraint for fish utilising mangrove forests. (Old ID 22654)

Wet Tropics Management Authority
Role

Chief Investigator

Description

This project focuses on understanding how dissolved oxygen (DO) impacts mangrove fish utilisation. In heavily vegetated habitats like mangroves, DO undergoes complex changes brought about by biogeochemical demand. The extent of DO depletion depends on many environmental parameters such as tide, time or day or human activities. Substantial DO depletion could limit the value of mangroves as habitats for fish. Consequently, I aim to: (i) develop an understanding of DO dynamics in mangrove forests; (ii) identify environmental parameters that drive these fluctuations; (iii) investigate how depressed DO impacts fish assemblages and behaviour; and (iv) establish DO thresholds for five fish species occupying mangroves.

Date

23 Feb 2016 - 22 Feb 2019

Project Type

N/A

Keywords

Mangrove;Dissolved Oxygen;Fish;Australia;New Caledonia;Hypoxia

Funding Body

Wet Tropics Management Authority

Amount

3750

Project Team

Marcus Sheaves;Nathan Waltham;Ronnie Baker