Estuary Survival

1. Estuary Survival The Rules of Life

2. The Players

3. Dungeness crab – Cancer magister • 5mm across carapace – megalops • 12mm across carapace – 1st instar • 20mm across carapace - juvenile

4. Coho salmon – Oncorhynchus kisutch • 35mm fork length – parr • 50mm fork length – smolt • 65mm fork length - juvenile

5. Predator/prey cards • The Striped Bass represents a non-native fish. • These fish appear on the predator/prey cards. • Predator/prey cards describe a situation with consequences for crabs and salmon in the estuary depending on factors such as your size and location.

6. Estuary condition cards • Estuary condition cards describe the tides and different factors that will impact life in the estuary. • The habitats below the low tide line include only the open water channel and the eelgrass meadows. • If you’re crab or salmon occupies a square that has any of a particular kind of habitat in it, you may claim that habitat. For example, if you have any bright green eelgrass in your square, you are protected by the eelgrass.

7. Estuary Survival gameboard

8. Estuary Survival gameboard Low tide lines

9. Estuary Survival gameboard Estuary zones

10. Estuary Survival gameboard Habitat legend

11. Habitat and tide zones • The estuary playing board is divided into three areas – low, mid, and upper estuary which are divided by lines across the board. • The low tide line is marked in black. • The habitat zones cross over these areas. • To claim a habitat, at least 50% of your square must be covered by this habitat. • Four habitat zones exist • Eelgrass (bright green) • Open water (blue) • Mudflats (brown) • Salt marsh (dark green)

12. Your scorecard • Investigator’s name • Common name of the animal • Genus and species • Size and life stage • Three questions • Scoring box for each round

13. Tokens are worth 20 points each 5mm crab megalops 35mm salmon smolt 50mm salmon smolt 12mm crab larva 65mm salmon smolt 20mm crab larva

14. sample scoring for 3 rounds

15. Graphing survivorship