How Climate Change Affects Ocean Life | Compilation | Summary and Q&A

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February 15, 2022
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How Climate Change Affects Ocean Life | Compilation

TL;DR

Climate change affects oceanic life, as seen through the mass stranding of red crabs and the migration of three-line mud snails in the wrong direction.

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Questions & Answers

Q: How do red crabs indicate the effects of climate change on the ocean?

Red crabs, usually found off the coast of Baja California, wash up on California shores during El Niño events, signifying changes in ocean currents and warming waters caused by climate change.

Q: How do red crabs benefit from upwelling?

Areas of upwelling provide nutrient-rich waters, which support the growth of plankton, the main food source of red crabs. They move with the upwelling to ensure a steady food supply.

Q: Why do red crabs wash up on shore during El Niño events?

During El Niño, warm currents flow northward from South America, carrying red crabs away from their usual habitats in Baja California, resulting in mass strandings on California beaches.

Q: How are three-line mud snails affected by climate change?

Due to warmer waters, three-line mud snails are migrating in the wrong direction, towards shallower and warmer waters closer to the shore, instead of cooler deep waters, impacting their survival and population growth.

Summary & Key Takeaways

  • Mass strandings of red crabs, which are usually found off the coast of Baja California, indicate unusual oceanic activities caused by climate change.

  • The movements of red crabs are linked to ocean and climate patterns, such as upwelling, impacting their food availability and breeding seasons.

  • The migration of three-line mud snails in the wrong direction due to warmer waters showcases the vulnerability of bottom-dwelling species to climate change.

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