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: Gracilaria/Ogo,

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/A Diversity of Aquatic Life

The Red Algae, Division Rhodophyta, part 2

To: part 1, part 3, part 4

 

By Bob Fenner

 

New Print and eBook on Amazon

Marine Aquarium Algae Control

by Robert (Bob) Fenner

Genus Galaxaura:

Galaxaura sp. (maybe G. marginata, see: Galaxaura species in Hawaii) At right in Hawai'i and below, a bleached-out colony in the Red Sea, and a small piece off Cozumel. Distinct dichotomously branching species of pink to red color. 

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Galaxaura marginata. To 14 cm. tall, slightly compressed blades of pinkish red with light calcification. Colonies held by a single holdfast in shallow (to 10 m) water in reef areas. Bonaire 2016, Di pic.

Galaxaura rugosa. Tubular Thick Algae. Shallow water species; branching 1 in. segments w/ fuzzy filaments. Roatan 2016

Genus Gibsmithia:

Gibsmithia hawaiiensis Doty 1963. S. Leyte 2013

Genus Gracilaria:

Gracilaria/Ogo, a fabulous food genus for humans and fishes. Cultured for both uses. 

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Genus Halymenia:

Halymenia sp. Queensland, Australia. 

Genus Jania:

Jania, a tropical genus of jointed corallines; found in South Africa, South Australia and Southern California! This one in Belize. 

Jania adherens, Pink Segmented Alga. Appear as fine, tangled clumps. Widely separated dichotomous branching made up of tubular segments and flexible joints. Pink to red with white joints. 

Genus Kallymenia:

Kallymenia limminghii Montagne. Strap-shaped bright red small (to 2") blades with rippled margins. In darker areas like bases of sea fans. To 100'. Roatan 2017

Genus Laurencia:

Laurencia sp. Here in S. Sulawesi.

Genus Lithophyllum:

Lithophyllum the most widespread genera of marine algae are this and Lithothamnion, rock encrusting forms; all reefs, reef-tanks, both poles and everywhere in-between to 500 feet depths! Thin calcareous films to knobby, stony masses. 

Genus Lithothamnion:

Lithothamnion (prolifera?), encrusting Coralline Red Algae. Here off of Queensland, Australia. 

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Genus Maripelta:
Maripelta rotata (Dawson 1963); a small Red Algae (a few inches across) here off of San Diego on the wreck Yukon in about 80 feet of water. See AlgaeBase re. 2016


Genus Martensia:
Martensia pavonia (J. Argedh) J. Argedh. Wide, ephemerous translucent blades. Blades 1/3 cm. net-like. Roatan 2017. Di pic.



New Print and eBook on Amazon

Marine Aquarium Algae Control

by Robert (Bob) Fenner

To: part 1, part 3, part 4

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