Fishing Can Turn Big Fish Into Small Fish

Diaz Pauli B, Bartuseviciute V, & Heino M ORCID: https://orcid.org/0000-0003-2928-3940 (2020). Fishing Can Turn Big Fish Into Small Fish. Frontiers for Young Minds 8: e112. DOI:10.3389/frym.2020.00112.

[img]
Preview
Text
kids-frontiersin-org-article-10-3389-frym-2020-00112.pdf - Published Version
Available under License Creative Commons Attribution.

Download (2MB) | Preview

Abstract

People affect animals and plants all over the world. One example is by fishing. Fishing selects fish with unique traits. First, fishers take large fish out of the water. So, populations become small and have only small fish left in them. These fish have babies for the first time when they are younger and smaller. Second, different fishing methods can select fish with different behaviors. So, fishers might catch more timid fish or more active fish, depending on the method. Fishing makes fish populations less diverse and productive. Less diverse means there are only small fish or active fish, not a mix of big, small, active, and timid. Less productive means fewer fish to catch later. Small, less diverse populations are weaker and cannot respond to large changes in the environment. Weaker populations are more difficult to fish in a way that will allow the population to survive. So, fishing makes the fish populations less valuable to the fishers.

Item Type: Article
Research Programs: Evolution and Ecology (EEP)
Depositing User: Luke Kirwan
Date Deposited: 20 Oct 2020 12:39
Last Modified: 21 Oct 2020 14:06
URI: http://pure.iiasa.ac.at/16793

Actions (login required)

View Item View Item

International Institute for Applied Systems Analysis (IIASA)
Schlossplatz 1, A-2361 Laxenburg, Austria
Phone: (+43 2236) 807 0 Fax:(+43 2236) 71 313