Harvey's four divisions are : red algae ( Rhodospermae ), brown algae ( Melanospermae ), green algae ( Chlorospermae ), and Diatomaceae.
42.
Oil from brown algae ( kelp ) is a source of EPA . The alga " Nannochloropsis " also has high levels of EPA.
43.
Brown algae belong to a very large group, the Heterokontophyta, a group of flagellated spores and gametes that closely resemble cells of other heterokonts.
44.
In some brown algae, the pith region includes a core of elongated cells that resemble the phloem of vascular plants both in structure and function.
45.
In the outer bay zone beds of kelp thrive with foliose brown algaes and several varieties of the axinellid sponge species have colonised the reefs.
46.
It may be the stem-like part of the thallus of a mushroom or a seaweed, and is particularly common among brown algae such as kelp.
47.
These are the brown algae, some of which may reach 50 m in length ( kelps ) the red algae, and the green algae.
48.
Brown algae, most specifically kelps, create underwater " forest " habitats for many marine creatures, and provide a large portion of the diet of coastal communities.
49.
In the most structurally differentiated brown algae ( such as " Fucus " ), the tissues within the stipe are divided into three distinct layers or regions.
50.
"Our hypothesis is that while there is a normal green algae in Peconic Bay, there is also always some of these brown algae around, " he said.
