Brown algae

brown algae, primary production at the ocean and their classification with major phyla and ecology.

1. Brown Algae

2. contents Introduction . Definition Shape Nutrition requirements Economic importance Reproduction Lifecycle stages Habitat Dispersal Impacts and control Species

3. Introduction : Brown algae include approximately 1500 speices , are the largest and complex of all algae . Mutlicellular and marine . Brown or olive colour to accessory pigments in the chloroplast Range from simple filamentous to kelps.

4. Introduction : Rich in terms of biodiversity *Inhabiting great array of habitats *Critical primary producers in pelagic and coastal environments and in both temperate and tropical regions around the world

5. Shape : Spherical and about 1/25 inch diameter . Consists of branched upright filaments and hairs arising from abase of procumbent filament .

6. Economic importance : Food, secondary products Sources of alginates Emulsifiers in everything from paint to ice cream From kelp beds .

7. Nutritional requirements : from photosynthesis by absorbing dissolved nutrients

8. Reproduction and dispersal : entirely asexually by means of spores deriving from multi-cell sporangia (organ containing or producing spores) with each cell containing a single spore.

9. Lifecycle Stages : The lifecycle of brown algae typically involves an "alternation of generations" between diploid and haploid .

10. Life cycle :

11. Habitat : temperate coasts and in colder water of the Northern Hemisphere. They inhabit the intertidal and subtidal zones of coastal waters.

12. Impacts and control : Algal blooms may cause great invasion of many species that may cause serious problems . By eradiation technique it can be solved in right scientific way .

13. Biology : pigments Chl a & c & fucoxanthin Cell wall Cellulose and mucilage Plant body e.g., holdfast, stipe and blades Reproduction/meiosis/life history Most: sporic ( haplodiplontic ) One order: gametic ( diplontic )

14. Species :

15. Fucus :

16. Brown Algae

17. contents Introduction . Definition Shape Nutrition requirements Economic importance Reproduction Lifecycle stages Habitat Dispersal Impacts and control Species

18. Introduction : Brown algae include approximately 1500 speices , are the largest and complex of all algae . Mutlicellular and marine . Brown or olive colour to accessory pigments in the chloroplast Range from simple filamentous to kelps.

19. Introduction : Rich in terms of biodiversity *Inhabiting great array of habitats *Critical primary producers in pelagic and coastal environments and in both temperate and tropical regions around the world

20. Shape : Spherical and about 1/25 inch diameter . Consists of branched upright filaments and hairs arising from abase of procumbent filament .

21. Economic importance : Food, secondary products Sources of alginates Emulsifiers in everything from paint to ice cream From kelp beds .

22. Nutritional requirements : from photosynthesis by absorbing dissolved nutrients

23. Reproduction and dispersal : entirely asexually by means of spores deriving from multi-cell sporangia (organ containing or producing spores) with each cell containing a single spore.

24. Lifecycle Stages : The lifecycle of brown algae typically involves an "alternation of generations" between diploid and haploid .

25. Life cycle :

26. Habitat : temperate coasts and in colder water of the Northern Hemisphere. They inhabit the intertidal and subtidal zones of coastal waters.

27. Impacts and control : Algal blooms may cause great invasion of many species that may cause serious problems . By eradiation technique it can be solved in right scientific way .

28. Biology : pigments Chl a & c & fucoxanthin Cell wall Cellulose and mucilage Plant body e.g., holdfast, stipe and blades Reproduction/meiosis/life history Most: sporic ( haplodiplontic ) One order: gametic ( diplontic )

29. Species :

30. Fucus :