Beachcombers Field Guide - Department Of Fisheries Western ...
Beachcombers Field Guide - Department Of Fisheries Western ... Beachcombers Field Guide - Department Of Fisheries Western ...
This tough, dark brown spiral egg case is laid by the female Port Jackson shark. The female shark uses her mouth to wedge the egg case into a rock crevice, where it can stay for up to 12 months until the 24 cm pup (juvenile shark) emerges. Shark and skate egg cases are sometimes referred to as a mermaid’s purse. Port Jackson shark egg case
The catshark is a nocturnal shark, rarely seen by divers. They lay their eggs on the ocean fl oor, using the coiled tendrils at the end of the egg case to attach it to fi xed objects. The developing shark lives off the yolk sac but once born the shark must fend for itself. There are 21 species of catsharks found along Western Australia’s coast, so it is hard to determine what species (or type) of catshark the egg case has come from. Catshark egg case
- Page 45 and 46: Photo: Sandy Clarke Ram’s horn sh
- Page 47 and 48: Chiton
- Page 49 and 50: Mussel
- Page 51 and 52: Scallop
- Page 53 and 54: Pipi
- Page 55 and 56: Razor clam
- Page 57 and 58: Sea jelly
- Page 59 and 60: Bluebottle
- Page 61 and 62: Coral
- Page 63 and 64: Acorn barnacle
- Page 65 and 66: Goose barnacle
- Page 67 and 68: Crab
- Page 69 and 70: Tube worm
- Page 71 and 72: Sea urchin
- Page 73 and 74: Sea star
- Page 75 and 76: The piles of algae and seagrasses f
- Page 77 and 78: Green algae are characteristically
- Page 79 and 80: Found throughout southern Australia
- Page 81 and 82: Brown algae contain most of the lar
- Page 83 and 84: Found throughout Australian waters,
- Page 85 and 86: Red algae are the most numerous of
- Page 87 and 88: Common on rocky reefs, this red alg
- Page 89 and 90: Seagrasses are marine fl owering pl
- Page 91 and 92: Strapweed or Posidonia is the only
- Page 93 and 94: Along with strapweed, wireweed is o
- Page 95: This sausage jelly (as they are som
- Page 99 and 100: The bobtail or bluetongue lizard is
- Page 101 and 102: Beaches provide an important haul-o
This tough, dark brown spiral egg case is<br />
laid by the female Port Jackson shark. The<br />
female shark uses her mouth to wedge the<br />
egg case into a rock crevice, where it can<br />
stay for up to 12 months until the 24 cm<br />
pup (juvenile shark) emerges. Shark and<br />
skate egg cases are sometimes referred<br />
to as a mermaid’s purse.<br />
Port Jackson<br />
shark egg case
Change language