Florideophyceae |
Gigartinales |
Nemastomataceae
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
Sessile. Tropical
Distribución
Territories | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Introducciones
Atlantic Ocean: In Puerto Rico south to Colombia and Venezuela, including the Caribbean, east to the Canary Islands; Indian Ocean: In Oman and South Africa east to Western Australia; Pacific Ocean: In Micronesia and Fiji, east to Easter Island including the Hawaiian Islands.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm
The gelatinous thallus is about 3.5 cm high, irregularly branched with numerous short, blunttapering branchlets. The colour is pale pinkish in situ. The thallus is multiaxial, composed of a filamentous medulla and cortex embedded in a gelatinous matrix. The cortical filaments are dichotomously branched, with rectilinear cells, 4-5 μm wide by 8-13 μm long. Gland cells are absent. Carpogonial branches are 3-celled. Auxiliary cells are placed intercalary in cortical filaments and uteriform in shape with a prominent apical bulge. Nutritive cells, grouped per 3-6 in chains 1-3 cells long, are present on the cortical cells immediately below and on the 2 cells distal to the auxiliary cell. The gonimoblast arises apically from the auxiliary cell and not laterally in conjunction with the connecting filament. Male gametophytes were not observed (Ref. 82093).
Predaea weldii is characterised by its rectilinear-shaped cortical cells, the lack of gland cells, the relatively sparse and large nutritive cells and the gonimoblasts, which arise apically from the auxiliary cells (Ref. 82093). Occurs on volcanic rocks at shallow intertidal to subtidal depths (Ref. 80999). Also on coral rubble (Ref. 82093).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Guiry, M.D. and G.M. Guiry 2009 AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 14 April 2009. (Referencia 80701)
Situación en la Lista Roja de la UICN
(Referencia 130435: Version 2025-2 (Global))
Estatus CITES (Referencia 108899)
Not Evaluated
CMS (Referencia 116361)
Not Evaluated
Amenaza para el ser humano
Usos humanos
FAO - Publication: search | FishSource |
Herramientas
Más información
Ecología TróficaAlimentos (presas)
Composición de la dieta
consumo de alimento
Despredadores
Dinámica de la poblaciónCrecimiento
Edades / tallas máximas
Longitud-peso rel.
Longitud-longitud rel.
Longitud-frecuencias
Conversión de masas
Abundancia
Ciclo de vidaReproducciónMadurezFecundidadPuestaHuevosDesarrollo de los huevosLarva FisiologíaConsumo del oxígeno
Relacionados con el ser humanoSellos, monedas, varios
Fuentes de Internet
Estimaciones basadas en modelos
Vulnerabilidad pesquera
(Referencia 71543) |
(0 of 100). |
