Journal
MARINE POLLUTION BULLETIN
Volume 196, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2023.115655
Keywords
Coastal zone; Environmental changes; Kelp forest; Marine environment modifications; Seawater chemistry
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Kelp forests, found in cool temperate and polar waters, play a crucial role in supporting species diversity, promoting macroalgae productivity, mitigating acidity levels, and enhancing dissolved oxygen concentrations in adjacent waters. They also have a profound impact on seawater chemistry, highlighting their vital role in marine ecosystems.
Kelp forests, globally distributed in cool temperate and polar waters, are renowned for their pivotal role in supporting species diversity and fostering macroalgae productivity. These high-canopy algal ecosystems dynamically influence their surroundings, particularly by altering the physicochemical properties of seawater. This review article aims to underscore the significance of kelp forests in modifying water masses. By serving as effective carbon sinks through the absorption of bicarbonate (HCO3-) and carbon dioxide (CO2) for photosynthesis, kelp forests mitigate nearby acidity levels while enhancing dissolved oxygen concentrations, essential for sustaining diverse marine communities. Additionally, kelp beds have exhibited the need to use inorganic ions (NO3-, NO2-, PO43-) from seawater in order to grow, albeit with associated increases in NH4+ concentrations. Specific examples and findings from relevant studies will be presented to illustrate the profound impact of kelp forests on seawater chemistry, emphasizing their vital role in marine ecosystems.
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