Belinda Beatriz Márquez Álvarez

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Halichondrid sponges play a pivotal role in the classification of demosponges as changes in their classification has had direct consequences for the classification of Demospongiae. Historically, the systematics of halichondrids has been unstable. During the 1950s, the order was divided into two subclasses, which were based on empirical and assumed(More)
Australia is increasingly recognised as a global hotspot for sponge biodiversity, but there is a knowledge gap about sponge communities in northern Australia, including those in Commonwealth Marine Reserves. We aim to quantify sponge biodiversity of the eastern Joseph Bonaparte Gulf and adjacent Van Diemen Rise (VDR) and to examine spatial and environmental(More)
Major and trace elements were measured in sponges, seawater and sediment in Darwin Harbour (Australia) to test the hypothesis that metals are elevated in sponges closer to a sewage outfall compared with unimpacted sites. Seawater and sediment at the sewage discharge site contained high, but localised, concentrations of phosphorus (P), manganese (Mn), iron(More)
Marine reserves are becoming progressively more important as anthropogenic impacts continue to increase, but we have little baseline information for most marine environments. In this study, we focus on the Oceanic Shoals Commonwealth Marine Reserve (CMR) in northern Australia, particularly the carbonate banks and terraces of the Sahul Shelf and Van Diemen(More)
Mangrove-fringed ponds in the Pelican Cays, Belize, support an uncommonly diverse population of colorful and large sponges. Sponge species and abundance were determined for ponds at Cat Cay (Pond A), Manatee Cay (C), and Fisherman's Cay (E and F) and compared with the sponge fauna of more typical and common mangrove habitats elsewhere in the Belize lagoon,(More)
  • MANGROVE PONDS, PELICAN CAYS, +10 authors Carrie Bow Cay
  • 2005
Mangrove-fringed ponds in the Pelican Cays, Belize, support an uncommonly diverse population of colorful and large sponges. Sponge species and abundance were determined for ponds at Cat Cay (Pond A), Manatee Cay (C), and Fisherman's Cay (E and F) and compared with the sponge fauna of more typical and common mangrove habitats elsewhere in the Belize lagoon,(More)
Nine species in five genera of the family Axinellidae, including three new species, Axinella badungensis sp. nov., A. balinensis sp. nov. and Phycopsis pesgalli sp. nov. are recorded from Indonesian waters within the limits of the Western Coral Triangle province. Descriptions and discussion of those species are presented here. Four new combinations,(More)
The literature on cancer, of the Children Hospital "JM de los Ríos", allowed us to distinguish two series of solid tumors in children. The first serie (1, 2, 3), from 1937 to 1976, with 581 cases of malignant solid tumors, 75 of which were sarcomas (Table N° 1) and a second serie (4, 5), from 1985 to 2001, with 1.796 cases of solid tumors, with 280 cases of(More)
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