publication . Master thesis . 2014

Variation in armour of three-spine stickleback

Wiig, Elisabeth;
Open Access Norwegian
  • Published: 01 Jan 2014
The three-spine stickleback is an adaptable fish with variation in morphology and behaviour, inhabiting saltwater, brackish water and fresh water. It is armoured with 30-35 bone plates along its lateral line. In addition, it is equipped with three spines on its back and two pelvic spine. These features constitute an excellent anti-predator defence system. Yet, there is a strong selection for reduction in armour of three-spine stickleback in freshwater stickleback. In this project, the bone structure and lateral plate of 72 three-spine stickleback from salt, brackish and fresh water was compared. Three-dimensional description of bone structures was accomplished b...
free text keywords: stickleback, bone, plate, morph, evolution

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