WATCH LIST Freshwater Snail Cipangopaludina chinensis About Description C. chinensis size range can vary, but when fully developed, it can grow up to 6.5 to 7cm long, with a thick and spherical shell. The shell has 6 to 7 whorls and is olive green to greenish or reddish brown. The shell is narrower at the

WATCH LIST Marine Seaweed Sargassum muticum About Description A long seaweed (typically 1-3m long) with wiry stems that have small, oval-shaped leaflets (up to 2cm long, sometimes toothed), with small spherical gas bladders (up to 3mm in diameter) attached to them. The stems are thin and cylindrical, with may branches radiating from it in a

WATCH LIST Freshwater Crustacean Procambarus virginalis About Description P. virginalis is typically less than 10cm, but can be up to 13cm. It has narrow pincers, and brown or green mottling on the shell. Marbled crayfish released in the wild have darker mottling, while bred individuals have lighter mottling. Key Identification Features: Usually less than 10

WATCH LIST Other Names: Louisiana Red Crayfish, Crawfish Freshwater Crustacean Procambarus clarkii About Description P. clarkii is 7-25cm and dark red. The claws are long and narrow, and there is typically a blue-grey coloured line along the underside of the tail. Juveniles do not have this red colouring. Additionally, the crayfish has bright red, white

WATCH LIST Marine Animal Juxtacribrilina mutabilis About Description Live colonies are whitish pink in colour and roughly circular (5-7mm wide). Colonies are a single sheet of many connected, oval-shaped “cells.” These cells are filter feeding individuals, known as “zooids.” The appearance of these zooids varies, with some having many ribs (more common) to looking like

WATCH LIST Freshwater Crustacean Faxonius limosus About Description F. limosus is approximately 10cm long and has spiny cheeks. Often, they have striped abdomens and legs with orange tips. However, sediment may colour them black. Key Identification Features: 10cm long. Spiny cheeks. Striped abdomens and legs with orange tips. Habitat and Impact: F. Limosus lives in

WATCH LIST Dreissena polymorpha ABOUT IMPACTS PREVENTION All Hands on Deck! Zebra Mussels are an urgent threat to local water bodies because they: Disrupt ecosystems and native species. Damage infrastructure and increase maintenance costs. Reduce recreational enjoyment and tourism revenue. Spread quickly and are difficult to control. By taking action, we can help protect our