''Laminaria agardhii'' is a species of brown kelp, noted by a strong holdfast and finger-like blades.

Distribution and ecology

This species of algae is most commonly found in the northeastern Atlantic Ocean, distribution is as southern as Massachusetts, United States, and northern as Baffin Bay of the Canadian Arctic. This kelp exists in the sublittoral zone, adapted to grow among tidal rocks of depths between 0.5 and 3 meters.

Morphology

A strong stem secures the plant among sublittoral rocks, the stem can reach 0.5 meters in length, attached to a strong, fibrous holdfast. The blade of the plant is narrow and long, substantially so more than the stem. The blade of the ''Laminaria agardhii'' grows to be approximately 30 cm in width, and 3 meters in length.

Reproduction

''Laminaria agardhii'' typically reproduces between September and April, peaking in January. This species of kelp reproduces via sporangia that grow on the surface of blades. The sporangia release

zoospore A zoospore is a motile asexual spore that uses a flagellum for locomotion. Also called a swarm spore, these spores are created by some protists, bacteria, and fungi to propagate themselves. Diversity Flagella types Zoospores may possess one or ...

s with flagella, allowing for a greater area of dispersal. Gametophytes of ''Laminaria'' consist of a chain-like series of cells that grow into a new organism.

Medicinal usages

''Laminaria agardhii'' has many uses, ranging from traditional medicine to nutritional intake. ''Laminaria'' is high in iodine, a nutrient crucial for proper thyroid function. In addition to promoting thyroid health, members of the family Laminariaceae can be used to induce and aid in labor. Pieces of laminaria can be put in the cervix and water added. The laminaria absorbs the water and enlarges, making the opening of the cervix larger.

References

*"Lamina" https://en.wiktionary.org/wiki/lamina. Retrieved 13 December 2014. *Taylor, William. Marine Algae of the Northeastern Coast of North America. Vol. 13. Ann Arbor, Michigan: U of Michigan, 1937. 191. Print. *Round, F. E. The Ecology of Algae. Cambridge from=Q12236923 Laminariaceae Edible_algae Biota_of_the_Atlantic_Ocean.html" ;"title="Edible_algae.html" ;"title="Laminariaceae Edible algae">Laminariaceae Edible algae Biota of the Atlantic Ocean">Edible_algae.html" ;"title="Laminariaceae Edible algae">Laminariaceae Edible algae Biota of the Atlantic Ocean Marine biota of North America Flora of Subarctic America Flora of Eastern Canada Flora of the Northeastern United States Flora without expected TNC conservation status