testudinum tuvo en promedio menor gasto en hojas verde (≈11 %) Raíces (≈45 %) el resto de biomasa fue de vainas. Permitieron un crecimiento vegetal rápido: el pasto marino Thalassia testudinum fue másĭenso y monoespecífico, con mayor gasto en tejido fotosintético (≈35 %) que rizomas y En la parteĭe mezcla se presentaron valores altos de irradiancias y de concentración de nutrientes, que La diversidad de macroalgas fue baja (28Įspecies), aunque la mayoría es de crecimiento rápido y de productividad alta. Se estudiaron las macroalgas y/o los pastos marinos en tres zonas de la bahía de Chetumal.Įn la primera zona, canal de Bacalar Chico, los vegetales se recolectaron de aguas de laīahía, del mar Caribe y de una área de mezcla. ![]() ![]() Further morphologic and genetic analyses are required in order to know the origin and expansion of this genus along the Mediterranean coasts. ![]() The recent confirmation of a Batophora species in a littoral lagoon from Formentera (Balearic Islands) with similar morphologic characteristics could indicate that both putative introductions are connected. A consensus sequence from the rbcL barcode gene was compared by the Blastn tool showing its closeness to other Batophora specimens, yet the specific level was unresolved. Morphologic analyses are not conclusive regarding the species description, but most traits point to Batophora occidentalis or Batophora occidentalis var. A further survey made during May 2022 confirmed the presence of this species in much of the perimeter of the Mar Menor. However, according to some observations, it could have been present in the lagoon at least since 2016, being described as a “rare” form of Dasycladus vermicularis. We detected this macroalga in November 2021. We first report the presence of a species of the genus Batophora in the Iberian Peninsula, in the Mar Menor lagoon (Murcia, SE Spain). largoensis, a variety that has been separated on the basis of its color. The reddish-brown pigmentation of gametophores exhibited by both species invalidates the diagnosis of B. The reproductive differences may permit the two Batophora species to coexist in sympatry in Chetumal Bay. Reproductive potential per plant was estimated in July 1999 to be similar for both species however, the difference in the number of reproductive plants per unit area of the Bay provided a greater total reproductive potential for B. Both species showed the highest percentage of gamete release at between 100 and 150 μmol m−ġ radiation. ![]() Gamete release was significantly greater in B. Gamete release was assayed applying two treatments to gametangia. The two species have different positive relationships between gametophore area and number of gametangia, and between reproductive thalli distance and number of gametophores. The species present different vegetative and reproductive characteristics compared to Batophora species from other parts of the world. Both species coexist in the Chetumal Bay estuarine system. Plants possessed spherical or ovoid gametophores, corresponding to Batophora oerstedi and B. Measurements on vegetative and reproductive structures from plants of the genus Batophora J.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |