Current Search: Diaz, Maria Cristina (x)
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- Title
- A systematic revision of the central west Atlantic Halichondrida (Demospongiae,Porifera). Part III: Description of valid species.
- Creator
- Diaz, Maria Cristina, Pomponi, Shirley A., Van Soest, Rob W. M.
- Date Issued
- 1993
- PURL
- http://purl.flvc.org/fau/fd/FA00007221
- Subject Headings
- Halichondrida, Demospongiae, Porifera, Atlantic Ocean, Animals--Classification
- Format
- Document (PDF)
- Title
- A systematic revision of the Central-Atlantic Halichondrida (Demospongiae, Porifera). Part I: Evaluation of characters and diagnosis of genera.
- Creator
- Diaz, Maria Cristina, Van Soest, Rob W. M., Pomponi, Shirley A.
- Date Issued
- 1991
- PURL
- http://purl.flvc.org/FCLA/DT/3333130
- Subject Headings
- Halichondrida, Demospongiae--Classification, Halichondriidae, Hymeniacidonidae
- Format
- Document (PDF)
- Title
- Phylogenetic classification of the halichondrids (Porifera, Demospongiae).
- Creator
- Van Soest, Rob W. M., Diaz, Maria Cristina, Pomponi, Shirley A.
- Date Issued
- 1990
- PURL
- http://purl.flvc.org/fau/fd/FA00007404
- Subject Headings
- Cladistic analysis, Halichondrida, Demospongiae, Chemotaxonomy, Phylogeny
- Format
- Document (PDF)
- Title
- A systematic revision of the Central Atlantic Halichondrida (Demospongiae, Porifera). Part II. Patterns of distribution of secondary metabolites.
- Creator
- Pomponi, Shirley A., Wright, Amy E., Diaz, Maria Cristina, Van Soest, Rob W. M.
- Date Issued
- 1991
- PURL
- http://purl.flvc.org/FCLA/DT/3333131
- Subject Headings
- Halichondrida, Secondary metabolites, Demospongiae--Classification
- Format
- Document (PDF)
- Title
- Topsentin, bromotopsentin, and dihydrodeoxybromotopsentin; antiviral and antitumor bis(indolyl)imidazoles from Caribbean deep-sea sponges of the family Halichondriidae. Structural and synthetic studies.
- Creator
- Tsujii, S., Rinehart, Kenneth L., Gunasekera, Sarath P., Kashman, Y., Cross, S. S., Lui, M. S., Pomponi, Shirley A., Diaz, Maria Cristina
- Date Issued
- 1988
- PURL
- http://purl.flvc.org/FCLA/DT/3332952
- Subject Headings
- Sponges--Caribbean Sea, Imidazoles, Indoles, Antiviral agents, Antineoplastic agents
- Format
- Document (PDF)
- Title
- Morphological Diagnoses of Sponges Collected at Shelf-edge MPAs from Eastern Florida to North Carolina, between depths of 51 and 150 m, during CIOERT Expeditions (2018-2019).
- Creator
- Diaz Ronda, Maria Cristina, Farrington, Stephanie, Reed, John K., Pomponi, Shirley A.
- Abstract/Description
-
This paper is a result of the taxonomic analyses of the sponges collected during the NOAA Ship Pisces expeditions in 2018 and 2019 with the University of North Carolina, Wilmington (UNCW) Mohawk ROV. This is part of a 9-year project conducted by NOAA National Marine Fisheries (NMF) in collaboration with the Cooperative Institute for Ocean Exploration, Research, and Technology (CIOERT) at Harbor Branch Oceanographic Institute, Florida Atlantic University (HBOI-FAU) to document and monitor the...
Show moreThis paper is a result of the taxonomic analyses of the sponges collected during the NOAA Ship Pisces expeditions in 2018 and 2019 with the University of North Carolina, Wilmington (UNCW) Mohawk ROV. This is part of a 9-year project conducted by NOAA National Marine Fisheries (NMF) in collaboration with the Cooperative Institute for Ocean Exploration, Research, and Technology (CIOERT) at Harbor Branch Oceanographic Institute, Florida Atlantic University (HBOI-FAU) to document and monitor the Marine Protected Areas (MPAs) of the southeastern U.S. continental shelf (eastern Florida to North Carolina, 50-165 m deep). The most prominent and conspicuous sponges were collected with the intention of evaluating the biodiversity of this important benthic group in these mesophotic habitats. Eleven sponge samples were collected, and taxonomic evaluation, studying the internal and external morphology, resulted in: 1) three well recognized species from the Tropical Western Atlantic (Leiodermatium lynceus, Neofibularia nolitangere, Clathria foliacea), 2) four species with sibling recognized species but with major morphological differences that might require the description of new species (Epipolasis cf. profunda, Cliona cf. tumula, Cliona aff. celata), and 3) three species that only could receive generic assignations (Penares sp.1, Clathria sp.1, and Aaptos sp.1). These results show that more than half of the species collected represent unknown species to science, or unknown variations of recognized species. Careful comparison with species types and observations of spicules under SEM would allow the necessary evidence to characterize and classify these new species or varieties. We suggest further characterization of these novel fauna considering their level of abundance and distribution in the MPAs studied. A synoptic description of each species studied, with live, deck and microscopy photographs is here presented.
Show less - Date Issued
- 2018 - 2019
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000407
- Format
- Document (PDF)
- Title
- CUBA’S MESOPHOTIC CORAL REEFS Sponge Photo Identification Guide 1st Edition.
- Creator
- Diaz, Maria Cristina, Pomponi, Shirley A., Reed, John K., Busutil, Linnet, Garcia-Hernandez, Maria Rosa
- Abstract/Description
-
Mesophotic coral reef ecosystems (MCEs) are light-dependent benthic communities that occur deeper than shallow reefs and typically range from depths of 30 m to the bottom of the photic zone, which may extend to >150 m in some regions. MCEs represent in part an extension of shallow-water coral reef ecosystems and support a diverse assemblages of habitat-building taxa, including corals, sponges and algae, and associated fish (Reed et al., 2018). Many MCEs worldwide appear to be thriving...
Show moreMesophotic coral reef ecosystems (MCEs) are light-dependent benthic communities that occur deeper than shallow reefs and typically range from depths of 30 m to the bottom of the photic zone, which may extend to >150 m in some regions. MCEs represent in part an extension of shallow-water coral reef ecosystems and support a diverse assemblages of habitat-building taxa, including corals, sponges and algae, and associated fish (Reed et al., 2018). Many MCEs worldwide appear to be thriving compared to shallow reefs. The deep reef refugia hypothesis suggests that MCEs may be less impacted from natural and anthropogenic impacts than shallow coral reefs, and may be more stable and resilient than shallow reefs. MCEs may also act as refugia for shallow reef species through the export of fish and coral larvae. However, it is now apparent that MCEs are also vulnerable to disturbances from all facets of perturbations including climate change, bottom trawling, invasive species, and pollution. Whereas considerable data have been reported regarding the distribution, ecology, and health of Cuba’s shallow reefs, relatively little is known about the distribution, community structure and health of Cuba’s deep mesophotic reefs. Cuba’s strong marine policies and legislation has already resulted in 105 MPAs, covering nearly 25% of its insular shelf, yet overfishing, poaching, pollution and global warming are threats to these vulnerable ecosystems, as reefs worldwide are threatened.
Show less - Date Issued
- 2019
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000405
- Format
- Document (PDF)
- Title
- Characterization of Mesophotic Coral/Sponge Habitats and Fish Assemblages in the Regions of Pulley Ridge and Tortugas from ROV Dives during R/V Walton Smith Cruises of 2012 to 2015.
- Creator
- Reed, John K., Farrington, Stephanie, David, Andrew, Harter, Stacey, Moe, Heather, Horn, Lance, Taylor, Glenn, White, Jason, Voss, Joshua, Hanisak, M. Dennis, Diaz, Maria Cristina, Pomponi, Shirley A.
- Abstract/Description
-
This report summarizes the remotely operated vehicle (ROV) surveys during four cruises from 2012 to 2015 which characterizes the mesophotic coral reef ecosystems at Pulley Ridge and Tortugas. This research is part of a grant funded by the NOAA National Centers for Coastal Ocean Science award NA11NOS4780045: “Connectivity of the Pulley Ridge - South Florida Coral Reef Ecosystem”. The University of Miami ship R/V Walton Smith was used along with the University of North Carolina at Wilmington ...
Show moreThis report summarizes the remotely operated vehicle (ROV) surveys during four cruises from 2012 to 2015 which characterizes the mesophotic coral reef ecosystems at Pulley Ridge and Tortugas. This research is part of a grant funded by the NOAA National Centers for Coastal Ocean Science award NA11NOS4780045: “Connectivity of the Pulley Ridge - South Florida Coral Reef Ecosystem”. The University of Miami ship R/V Walton Smith was used along with the University of North Carolina at Wilmington (UNCW) Super Phantom ROV and the National Marine Sanctuary Foundation (NMSF) Mohawk ROV. The cruises were a collaboration of the University of Miami, HBOI-CIOERT, NOAA Fisheries, and the UNCW-CIOERT Undersea Vehicles Program.
Show less - Date Issued
- 2017-04-26
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000227
- Format
- Citation
- Title
- PHOTO IDENTIFICATION GUIDE OF THE BENTHIC TAXA INHABITING THE MESOPHOTIC REEFS OF THE FLORIDA KEYS NATIONAL MARINE SANCTUARY.
- Creator
- Reed, John K., Farrington, Stephanie, Pomponi, Shirley A., Diaz, Maria Cristina, Harbor Branch Oceanographic Institute, Hanisak, M. Dennis
- Abstract/Description
-
A 17-day research cruise was conducted to the Florida Keys National Marine Sanctuary (FKNMS), August 12-29, 2019 by the Cooperative Institute for Ocean Exploration, Research, and Technology (CIOERT) at Harbor Branch Oceanographic Institute, Florida Atlantic University (HBOI-FAU) aboard the University of Miami ship R/V F.G. Walton Smith. Harbor Branch Oceanographic Institute Technical Report Number 197.
- Date Issued
- 2021
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000419
- Format
- Document (PDF)
- Title
- Cruise Report. Cuba's Twilight Zone Reefs: Remotely Operated Vehicle Surveys of Deep/Mesophotic Coral Reefs and Associated Fish Communities of Cuba.
- Creator
- Reed, John K., Farrington, Stephanie, Gonzalez-Diaz, Patricia, Lopez, Linnet Busutil, Martínez-Daranas, Beatriz, Cobián Rojas, Dorka, Voss, Joshua, Hanisak, M. Dennis, Diaz, Maria Cristina, Jiang, Mingshun, Studivan, Michael, David, Andrew, Drummond, Felicia, Mendez, Juliett Gonzalez, Garcia Rodriguez, Alain, González-Sanchez, Patricia M., Fernández, Jorge Viamontes, Pérez, Daniel Estrada, Horn, Lance, White, Jason, Pomponi, Shirley A.
- Abstract/Description
-
The purpose of this research cruise was to discover and characterize, for the first time, the extent of mesophotic reefs along the entire coastline of Cuba, and to compare the health and connectivity (physical, genetic and ecological) among both mesophotic and previously well-characterized shallow reef systems in Cuba, the southeastern United States, and Gulf of Mexico (in particular, the FGBNMS and FKNMS). Moreover, the project will directly address a recommendation in the Report from...
Show moreThe purpose of this research cruise was to discover and characterize, for the first time, the extent of mesophotic reefs along the entire coastline of Cuba, and to compare the health and connectivity (physical, genetic and ecological) among both mesophotic and previously well-characterized shallow reef systems in Cuba, the southeastern United States, and Gulf of Mexico (in particular, the FGBNMS and FKNMS). Moreover, the project will directly address a recommendation in the Report from MarCuba (2015) in which the U.S. and Cuban participants in this project stated their intention to initiate an international collaboration.
Show less - Date Issued
- 2017-10-31
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000226
- Format
- Citation
- Title
- Cuba's Mesophotic Coral Reefs and Associated Fish Communities.
- Creator
- Reed, John K., Gonzalez-Diaz, Patricia, Busutil, Linnet, Farrington, Stephanie, Martínez-Daranas, Beatriz, Cobián Rojas, Dorka, Voss, Joshua, Diaz, Maria Cristina, David, Andrew, Hanisak, M. Dennis, Mendez, Juliett Gonzalez, Garcia Rodriguez, Alain, González-Sanchez, Patricia M., Viamontes Fernandez, Jorge, Estrada Perez, Daniel, Studivan, Michael, Drummond, Felicia, Jiang, Mingshun, Pomponi, Shirley A.
- Date Issued
- 2018
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000351
- Format
- Citation
- Title
- Reconstruction of Family-Level Phylogenetic Relationships within Demospongiae (Porifera) Using Nuclear Encoded Housekeeping Genes.
- Creator
- Hill, Malcolm S., Hill, April L., Lopez, Jose V., Peterson, Kevin J., Pomponi, Shirley A., Diaz, Maria Cristina, Thacker, Robert W., Adamska, Maja, Boury-Esnault, Nicole, Cárdenas, Paco, Chaves-Fonnegra, Andia, Danka, Elizabeth, De Laine, Bre-Onna, Formica, Dawn, Hajdu, Eduardo, Lobo-Hajdu, Gisele, Klontz, Sarah, Morrow, Christine C., Patel, Jignasa, Picton, Bernard, Pisani, Davide, Pohlmann, Deborah, Redmond, Niamh E., Reed, John K., Richey, Stacy, Riesgo, Ana, Rubin, Ewelina, Russell, Zach, Rützler, Klaus, Sperling, Erik A., di Stefano, Michael, Tarver, James E., Collins, Allen G., Lin, Senjie
- Abstract/Description
-
Background: Demosponges are challenging for phylogenetic systematics because of their plastic and relatively simple morphologies and many deep divergences between major clades. To improve understanding of the phylogenetic relationships within Demospongiae, we sequenced and analyzed seven nuclear housekeeping genes involved in a variety of cellular functions from a diverse group of sponges. Methodology/Principal Findings: We generated data from each of the four sponge classes (i.e., Calcarea,...
Show moreBackground: Demosponges are challenging for phylogenetic systematics because of their plastic and relatively simple morphologies and many deep divergences between major clades. To improve understanding of the phylogenetic relationships within Demospongiae, we sequenced and analyzed seven nuclear housekeeping genes involved in a variety of cellular functions from a diverse group of sponges. Methodology/Principal Findings: We generated data from each of the four sponge classes (i.e., Calcarea, Demospongiae, Hexactinellida, and Homoscleromorpha), but focused on family-level relationships within demosponges. With data for 21 newly sampled families, our Maximum Likelihood and Bayesian-based approaches recovered previously phylogenetically defined taxa: Keratosap, Myxospongiaep, Spongillidap, Haploscleromorphap (the marine haplosclerids) and Democlaviap. We found conflicting results concerning the relationships of Keratosap and Myxospongiaep to the remaining demosponges, but our results strongly supported a clade of Haploscleromorphap+Spongillidap+Democlaviap. In contrast to hypotheses based on mitochondrial genome and ribosomal data, nuclear housekeeping gene data suggested that freshwater sponges (Spongillidap) are sister to Haploscleromorphap rather than part of Democlaviap. Within Keratosap, we found equivocal results as to the monophyly of Dictyoceratida. Within Myxospongiaep, Chondrosida and Verongida were monophyletic. A wellsupported clade within Democlaviap, Tetractinellidap, composed of all sampled members of Astrophorina and Spirophorina (including the only lithistid in our analysis), was consistently revealed as the sister group to all other members of Democlaviap. Within Tetractinellidap, we did not recover monophyletic Astrophorina or Spirophorina. Our results also reaffirmed the monophyly of order Poecilosclerida (excluding Desmacellidae and Raspailiidae), and polyphyly of Hadromerida and Halichondrida. Conclusions/Significance: These results, using an independent nuclear gene set, confirmed many hypotheses based on ribosomal and/or mitochondrial genes, and they also identified clades with low statistical support or clades that conflicted with traditional morphological classification. Our results will serve as a basis for future exploration of these outstanding questions using more taxon- and gene-rich datasets.
Show less - Date Issued
- 2013-01-23
- PURL
- http://purl.flvc.org/fau/fd/FAUIR000044
- Format
- Citation