All of the options mentioned can have a major impact on fish species due to climate change. However, the most significant impact is likely changes in ocean habitat. Climate change can lead to warming of the ocean, which can disrupt the ecosystems that many fish species rely on for survival. This can result in habitat loss, migration of fish to new areas, and changes in prey availability. Additionally, rising sea levels and increased ocean acidity due to excess carbon dioxide can further exacerbate the changes in ocean habitat, making it more challenging for fish species to adapt and survive. Shifting ocean currents can also affect fish species by altering their distribution patterns and migration routes, potentially leading to changes in population dynamics and biodiversity. Food toxicity, while a concern, may be more directly linked to other aspects such as pollution and contamination rather than only climate change.
