Cystoseira
Encyclopedia
Cystoseira is a genus
of brown algae in the order Fucales
.
and apical regions and the presence of catenate pneumatocyst
s (air-vesicles).
In Cystoseira old plants have an elongated main axis, and in time the primary laterals become proportionally elongated. Their lower parts are strongly flattened into ‘foliar expansions’ or basal leaves. Fertile regions which bear conceptacles are known as receptacles. These are normally found at the tips of the branches. Their basal and apical regions are highly differentiated. They have catenate pnuematocysts (air vesicles). The aerocyst or air vesicles keep the organism erect, by causing it to float in strong currents.
are listed in the World Register of Marine Species:
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of brown algae in the order Fucales
Fucales
Fucales is an order in the brown algae . Members of this order are fucoids. The list of families in Fucales, as well as additional taxonomic information on algae, is publicly accessible at Algaebase....
.
Description
Cystoseira is characterized by highly differentiated basalAnatomical terms of location
Standard anatomical terms of location are designations employed in science that deal with the anatomy of animals to avoid ambiguities that might otherwise arise. They are not language-specific, and thus require no translation...
and apical regions and the presence of catenate pneumatocyst
Pneumatocyst
In phycology, a pneumatocyst is a large float containing gas found in brown algae. An organism may have more than one. They provide buoyancy to lift the blades toward the surface, allowing them to receive more sunlight for photosynthesis....
s (air-vesicles).
In Cystoseira old plants have an elongated main axis, and in time the primary laterals become proportionally elongated. Their lower parts are strongly flattened into ‘foliar expansions’ or basal leaves. Fertile regions which bear conceptacles are known as receptacles. These are normally found at the tips of the branches. Their basal and apical regions are highly differentiated. They have catenate pnuematocysts (air vesicles). The aerocyst or air vesicles keep the organism erect, by causing it to float in strong currents.
Distribution
Cystoseira is one of the most widely distributed genera of the Fucales order and provides an essential habitat for many epiphytes, invertebrates, and fish. Cystoseira is found mostly in temperate regions of the Northern Hemisphere, such as the Mediterranean, Indian, and Pacific Oceans.Bioindicators
Cystoseira depend on good water quality, and can be used for bioindication. This was discovered in a study of Cystoseira species undertaken on Menorca.Species
The following speciesSpecies
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
are listed in the World Register of Marine Species:
- Cystoseira abies-marina (S.G.Gmelin) C.Agardh, 1820
- Cystoseira algeriensis Feldmann, 1945
- Cystoseira amentacea (C.Agardh) Bory de Saint-Vincent, 1832
- Cystoseira baccataCystoseira baccataCystoseira baccata is a species of brown seaweed in the family Fucaceae. It is found in the north east Atlantic, the Baltic Sea and the Mediterranean Sea...
(S.G.Gmelin) P.C.Silva, 1952 - Cystoseira barbata (Stackhouse) C.Agardh, 1820
- Cystoseira barbatula Kützing
- Cystoseira brachycarpa J.Agardh, 1896
- Cystoseira compressa (Esper) Gerloff & Nizamuddin, 1975
- Cystoseira corniculata (Turner) Zanardini, 1841
- Cystoseira crassipes (Mertens ex Turner) C.Agardh, 1821
- Cystoseira crinita Duby, 1830
- Cystoseira crinitophylla Ercegovic, 1952
- Cystoseira dubia Valiante
- Cystoseira elegansCystoseira elegansCystoseira elegans is a brown alga species in the genus Cystoseira endemic to the Mediterranean.Hydroxylated diterpenoid-hydroquinones can be isolated from C. elegans.-External links:*...
Sauvageau, 1912 - Cystoseira foeniculacea (Linnaeus) Greville, 1830
- Cystoseira funkii Schiffner ex Gerloff & Nizamuddin, 1976
- Cystoseira geminata C.Agardh, 1824
- Cystoseira hakodatensis (Yendo) Fensholt, 1952
- Cystoseira helvetica Heer, 1877
- Cystoseira humilis Schousboe ex Kützing, 1860
- Cystoseira hyblaea G.Giaccone, 1985
- Cystoseira indica (Thivy & Doshi) Mairh, 1968
- Cystoseira jabukae Ercegovic, 1952
- Cystoseira mauritanica Sauvageau, 1911
- Cystoseira mediterranea Sauvageau, 1912
- Cystoseira montagnei J.Agardh, 1842
- Cystoseira neglecta Setchell & N.L.Gardner, 1917
- Cystoseira nodicaulis (Withering) M.Roberts, 1967
- Cystoseira osmundacea (Turner) C.Agardh, 1820
- Cystoseira pelagosae Ercegovic, 1952
- Cystoseira planiramea Schiffner
- Cystoseira platyclada Sauvageau, 1912
- Cystoseira rayssiae E.Ramon, 2000
- Cystoseira sauvageauana G.Hamel, 1939
- Cystoseira sauvageaueana G.Hamel, 1939
- Cystoseira schiffneri G.Hamel, 1939
- Cystoseira sedoides (Desfontaines) C.Agardh, 1820
- Cystoseira selaginioides
- Cystoseira setchellii N.L.Gardner, 1913
- Cystoseira sonderi (Kützing) Piccone
- Cystoseira spinosa Sauvageau, 1912
- Cystoseira squarrosa De Notaris, 1841
- Cystoseira susanensis Nizamuddin, 1985
- Cystoseira tamariscifolia (Hudson) Papenfuss, 1950
- Cystoseira trinodis (Forsskål) C.Agardh, 1820
- Cystoseira usneoides (Linnaeus) M.Roberts, 1968
- Cystoseira wildpretii Nizamuddin, 1995
- Cystoseira wildprettii Nizamuddin
- Cystoseira zosteroides C.Agardh, 1820