1 / 4

Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49.

Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49. Student Text.

conan
Download Presentation

Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49. Student Text Streams determine the shape of salmon. Thomas Quinn, a fisheries biologist from the University of Washington, claims that the shapes of salmon have evolved to mimic the streams they swim in – whether deep or shallow. Fish that are too big might be eaten by bears. However, big female salmon might also be able to reproduce with a large male. So shallow streams select for smaller individuals, and deeper lakes and rivers produce fish that look like dinner plates.

  2. Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49. Student Text Streams determine the shape of salmon. Thomas Quinn, a fisheries biologist from the University of Washington, claims that the shapes of salmon have evolved to mimic the streams they swim in – whether deep or shallow. Fish that are too big might be eaten by bears. However, big female salmon might also be able to reproduce with a large male. So shallow streams select for smaller individuals, and deeper lakes and rivers produce fish that look like dinner plates (Moore & Moore, 2003).

  3. Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49. Student Text Salmon evolve based on pressures from their surrounding environment (Moore & Moore, 2003). For instance, fish that live in shallow streams tend to be smaller, as they balance the benefits of being large - and therefore being able to find good mates - with the costs of potentially being captured by a predator. Male salmon living in deep rivers and lakes, however, “grow so humped they look as though they’ve swallowed dinner plates” (Moore & Moore, 2003).

  4. Moore, K.D. & J.W. Moore (2003) The Gift of Salmon. Discover. pp. 45-49. Student Text Salmon evolve based on pressures from their surrounding environment (Moore & Moore, 2003). For instance, fish that live in shallow streams tend to be smaller, as they balance the benefits of being large - and therefore being able to find good mates - with the costs of potentially being captured by a predator (Moore & Moore, 2003). Male salmon living in deep rivers and lakes, however, “grow so humped they look as though they’ve swallowed dinner plates” (Moore & Moore, 2003). Information in this paragraph is summarized from Moore & Moore (2003), and all credit should be given to Moore & Moore (2003).

More Related