A5062313134- Cephalopods and Marine Biology
- Neurobiology and Insect Physiology Research
- Marine and fisheries research
- Crustacean biology and ecology
- Environmental Toxicology and Ecotoxicology
- Marine Biology and Environmental Chemistry
- Aquaculture Nutrition and Growth
- Veterinary Pharmacology and Anesthesia
- Marine Bivalve and Aquaculture Studies
- Heavy metals in environment
- Chemical synthesis and alkaloids
- Mercury impact and mitigation studies
- Wildlife Ecology and Conservation
- Sperm and Testicular Function
- Isotope Analysis in Ecology
- Bladder and Urothelial Cancer Treatments
- Physiological and biochemical adaptations
- Species Distribution and Climate Change
- Ecology and biodiversity studies
- Fibroblast Growth Factor Research
- Cancer, Lipids, and Metabolism
- Epigenetics and DNA Methylation
- Parasite Biology and Host Interactions
- Marine Ecology and Invasive Species
- Morphological variations and asymmetry
National Technological University
2015-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2010-2024
Centro Científico Tecnológico Patagónico
2006-2023
Universidad Nacional de Córdoba
2023
Instituto de Biología Subtropical
2017-2021
Bernardino Rivadavia Natural Sciences Museum
2017
University of Miami
2015-2017
University of Hawaii System
2016
Hospital Universitario Virgen Macarena
2008
Fundación Ciencias Exactas y Naturales
2005-2006
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 545:251-259 (2016) - DOI: https://doi.org/10.3354/meps11610 Reducing green turtle bycatch in small-scale fisheries using illuminated gillnets: cost of saving a sea Natalia Ortiz1, Jeffrey C. Mangel1,2,*, John Wang3, Joanna Alfaro-Shigueto1,2,4, Sergio Pingo1, Astrid Jimenez1, Tania Suarez1, Yonat Swimmer3,...
Background:Prevention and treatment of advanced prostate cancer (PCa) by a nontoxic agent can improve outcome, while maintaining quality life. 4-methylumbelliferone (4-MU) is dietary supplement that inhibits hyaluronic acid (HA) synthesis. We evaluated the chemopreventive therapeutic efficacy mechanism action 4-MU.
Molecular markers of clinical outcome may aid in designing targeted treatments for bladder cancer. However, only a few cancer biomarkers have been examined as therapeutic targets.Data from The Cancer Genome Atlas (TCGA) and specimens were evaluated to determine the biomarker potential hyaluronic acid (HA) family molecules - HA synthases, receptors hyaluronidase. efficacy 4-methylumbelliferone (4MU), synthesis inhibitor, was vitro xenograft models.In TCGA data sets, synthases hyaluronidase-1...
This study examined the effect of male age, time lapse between death individual and collection its sperm, breeding season (1993, 1995, or 1996), testicle sampled (left right) on cell quality spermatozoa obtained postmortem from epididymis red deer stags (Cervus elaphus hispanicus). A total 142 sperm samples 71 free-ranging individuals shot during were used to investigate these effects. The cauda stags. Immediately after collection, an assessment was made proportion motile (PM), normal...
As for many other commercially exploited octopodid species, there are no detailed descriptions of the eggs and hatchlings Enteroctopus megalocyathus that can be used identification individuals captured in plankton samples. Eggs, clutches described here first time compared with those both Patagonian octopodids species. Relative to Enteroctopus, were large total length (TL) 14.8–21.5 mm, mantle (ML) 7–9.5 mm arm (AL) representing 90.5% mantle. Dorsal chromatophores more abundant than ventral...
The entire skin surface of octopus embryos, hatchlings and juveniles bears scattered tufts tiny chitinous setae within small pockets, from which they can be everted retracted. Known as Kölliker’s organs (KO), disappear before the subadult stage. function these structures during early life is unknown, despite having been first described nearly two centuries ago. To investigate further, general trends in size KO distribution density were analyzed 17 octopod species all oceans, representing...
Very little is known about the life history of Robsonella fontaniana . In particular, there are no descriptions early stages that enable correct identification samples taken from wild. this work, eggs and hatchlings described egg clutches obtained in field with brooding females incubated until hatching. Individual exhibited marked differences embryonic development within or even a single string. For one clutch collected at development, embryogenesis took 91 days 11.5 °C for second...
Abstract The Pampas of South America represents one the most extended subtropical–temperate grasslands in world. This ecoregion was influenced by Pleistocene climate oscillations. sigmodontine rodent assemblage inhabiting this region is a good model system to analyse impact these changes on evolutionary histories. We performed comparative phylogeographical study seven species evaluate concordance patterns among them, assess if they experienced congruent and synchronous demographic changes,...
This study examined the effects of three diluents - skim milk (M), TesT (TE) and Tris-trehalose (TR) on quality ram semen stored at 50C over a long term. Percentage motile spermatozoa (PM), motility score (MS), percentage intact acrosomes (PIA), swollen under hypoosmotic conditions (PS) were assessed after cooling every 24 h up to day 16. There was significant effect (p<.01) diluent type in conservation rates for PM. The TR achieved greater values (94.7+/-1.36%) than TE(82.4+/-3.08%),...
One of the major mechanisms responsible for animals’ fitness dynamics is fecundity. Fecundity as a trait does not evolve independently, and rather interacts with other traits such body egg size. Here, our aim was to correctly infer macroevolutionary trade-offs between length, potential fecundity, using cephalopods study model. The correlated evolution among those inferred by comparative phylogenetic methods. Literature data on biological reproductive (body fecundity) obtained 90 cephalopod...
SUMMARY The effects of dopamine (DA) and dopaminergic agonists antagonists on ion transport were studied in isolated perfused gills the crab Chasmagnathus granulatus. DA applied under steady state conditions(perfusion with hemolymph-like saline) produced a transient increase transepithelial potential difference (Vte) from 2.2±0.2 to 4.8±0.3 mV, describing an initial cAMP-dependent stimulating phase followed by inhibitory phase. Spiperone domperidone(antagonists D2-like receptors vertebrates)...
A procedure is described for simultaneously evaluating of sperm viability and acrosomal status in fixed deer spermatozoa. This technique, which a modification the triple-stain technique (TST) developed human sperm, utilizes trypan blue to identify percentage live culture subsequent staining differentiate acrosome. Four classes can be distinguished with TST: (1) unreacted (2) acrosome-reacted (true acrosome reaction), (3) dead (4) (false reaction). The study shows that detected either by TST...
Fil: Ortiz, Nicolas. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Patagonico; Argentina
Testes and ovaries of Enteroctopus megalocyathus collected along the Patagonian Atlantic coast were analysed histologically to validate macroscopic maturity scales adopted for this species. Changes through course development seminiferous tubules oocyte/follicular cell complexes characterized these classified into five six microscopic categories respectively. A histological index, based on frequencies categories, was used assess correspondence between maturation stages level gonadal tissue....