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Although they could be mistaken for a molluscs, gooseneck barnacles, (also known as goose barnacles) are actually crustaceans and are related to lobsters and crabs!
Resource type: Fun Fact SheetLast updated: 01.04.2026
This lesson is associated with the 2026 SeaWeek theme: 'Caring for Planet Water - The ocean makes the Earth habitable.'
Resource type: LessonLast updated: 04.03.2026
Cnidarians are a diverse group of animals that all share a key feature: the presence of ‘nematocysts’, or stinging cells. This fact sheet describes the main characteristics and four classes of Cnidarians.
Resource type: Fact SheetLast updated: 24.02.2026
Nuisance or necessary?
The common blowfish, or ‘blowie’, is abundant in estuaries and coastal waters throughout south-west Western Australia (WA). It is often regarded as a nuisance because it gobbles bait, making it hard for fishers to catch other species of fish.
However, while the blowfish will never win a popularity contest, it has an important role in marine ecosystems. The blowie is native to WA and keeps our waterways clean by eating up waste scrap, bait and berley.
Resource type: Fact SheetLast updated: 19.12.2025
Roe’s Abalone are a reef-dwelling marine snail in Western Australia which are the target of one of the world’s shortest recreational fishing seasons. Despite this fishing pressure, WA can boast one of the few remaining sustainable wild-stock abalone fisheries.
Resource type: Fact SheetLast updated: 24.11.2025
Seagrasses support highly productive and diverse ecosystems. These specialised marine plants are vitally important in the coastal environment because they are a source of food and shelter; oxygenate water, trap sand and recycle nutrients; act as carbon sinks (blue carbon); and provide breeding habitats and nursery areas for many marine organisms
Resource type: Fact SheetLast updated: 27.10.2025
Now referred to as sea stars, these star like creatures were once known as starfish.
Resource type: Fun Fact SheetLast updated: 08.10.2025
Sometimes referred to as jellyfish, the sea jelly is not a fish at all as it lacks vertebrae.
Resource type: Fun Fact SheetLast updated: 08.10.2025
There are many beautiful shells you can find along our WA coastline. From the large shells of the giant clam to the common pipi shell, to the iconic cowrie which is often used in jewellery, there are a diverse range of beautiful shells to be found at the beach.
Resource type: Fun Fact SheetLast updated: 08.10.2025
Octopuses are among of the most fascinating and intelligent marine invertebrates. These molluscs belong to the class Cephalopoda which also includes squid, cuttlefish, and nautilus.
Resource type: Fun Fact SheetLast updated: 08.10.2025
Red, green and brown, Algae are essential!
Algae are a diverse group of simple, plant-like organisms found in aquatic environments. They play an important role, forming the base of the food chain for marine life. They range from tiny, single-celled organisms called phytoplankton, visible only with the aid of a microscope, to the large kelps that can form massive undersea forests.
Resource type: Fact SheetLast updated: 07.10.2025
Colourful and protected by a strong carapace, the western rock lobster is one of the family of 'spiny' lobsters - and the target of WA's largest and most valuable fishery. This fact sheet explores the basic biology of the western rock lobster.
Resource type: Fact SheetLast updated: 17.09.2025
Pink snapper are one of Western Australia's best-known and most sought-after fish. This fact sheet provides information on the widely distributed Pink snapper (Pagrus auratus) and their biology.
Resource type: Fact SheetLast updated: 05.09.2025
A fact sheet providing information on Western Australian dhufish, a fish species endemic to the southern part of Western Australia. Its great size and superb eating qualities make this fish a Western Australian fishing icon.
Resource type: Fact SheetLast updated: 03.09.2025
Download the South Coast education program.
Resource type: School IncursionLast updated: 13.08.2025
Students will use a simple dichotomous key to identify various species of fish.
Resource type: LessonLast updated: 15.07.2025
Students will investigate the characteristics of fish.
Resource type: LessonLast updated: 15.07.2025
The Western Australian marine environment is home to a number of species that are protected under international agreements and national or state legislation.
Resource type: Field GuideLast updated: 15.07.2025
Students will investigate the features of fish.
Resource type: LessonLast updated: 10.07.2025
Of the 370-plus shark species in the world, more than 100 species live in Western Australian waters. This fact sheet provides general information about the biology of sharks, protected species and their vulnerability to overfishing.
Resource type: Fact SheetLast updated: 09.05.2025
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