Wakame has been selected as the target of the project because it is relatively easy to identify with a little knowledge of its key features. Please submit photographs with your records clearly showing as many of the key features as possible.
Key features (sporophytes)
- Dark green - brown colouration
- A distinct midrib
- A claw shaped/ branching holdfast
- Fairly thin, membranous, sometimes crinkled frond
- Frond branches (more so in mature sporophytes) almost like a Christmas tree - may appear as serrations at the base of the frond in young individuals
- Corrugated ruffle shaped reproductive structure at the base of the stipe (except in young individuals)
- May grow as long as 3 metres
- Blade-the leaflike part of a seaweed
- Digitate-shaped like a spread hand
- Frond-the erect part of a seaweed including stipe and blade
- Holdfast- the attachment structure that anchors a macroalgae to the substratum, can take a number of different forms such as rootlike, a disc (discoid), claw like or bulbous.
- Membranous-forming a thin layer, may be semi-transparent, often sheet-like.
- Midrib-a strengthened vein running along the middle of the frond
- Stipe-stalk like part arising from the holdfast and connecting to the blade
- Sporophyte-the spore producing phase in the life-cycle of plants with alternating generations. For the algae described the sporophyte is the large macroalgae observed on the shore, the gametophyte phase is microscopic.
- Sporophyll-reproductive body producing gametophytes
- Thallus-the entire body including the holdfast, stipe and blade.