"In some parts of the world there is very little tidal movement"

This quote by John Dyer is describing the phenomenon of tides, which are the regular fluctuate of the ocean's surface area caused by the gravitational pull of the moon and sun. In some parts of the world, the tidal variety is really small, indicating that the difference between low and high tide is minimal. This is because of a range of factors, such as the shape of the shoreline, the depth of the ocean, and the strength of the gravitational pull. In locations with a little tidal variety, the ocean's surface might just fluctuate a couple of inches, making it tough to observe the effects of the tide. This can be a problem for coastal communities, as they may not be able to take advantage of the natural resources that feature a larger tidal variety. In addition, the absence of tidal movement can lead to a reduction in biodiversity, as some species count on the regular influx of nutrients that come with a larger tidal range.