21. Other examples of anadromous fishes are sea trout, three-spined stickleback , and shad. 22. Sticklebacks are characterised by the presence of strong and clearly isolated spines in their dorsal fins.23. Typically, sticklebacks operate in pairs. 24. These results provide further evidence for a tit-for-tat cooperation strategy in sticklebacks . 25. The tit-for-tat cooperation strategy has been shown to be evident in sticklebacks . 26. Threespine stickleback prefer to join a shoal made up of bold individuals rather than shy ones. 27. Aquatically, the lake's algae-laden water hosts minnows, sticklebacks and carp. 28. Some researchers believe they are related to sticklebacks and pipefishes ( order Syngnathiformes ) rather than Perciformes. 29. Fauna : Insects and sticklebacks are common along the drainage channels along with frogs, smooth newts. 30. The lakes themselves only contain three-spined sticklebacks and cutthroat trout, and all are on islands.
