A5114375265- Cephalopods and Marine Biology
- Marine Biology and Ecology Research
- Marine and fisheries research
- Marine and coastal plant biology
- Isotope Analysis in Ecology
- Neurobiology and Insect Physiology Research
- Chemical synthesis and alkaloids
- Coral and Marine Ecosystems Studies
- Ichthyology and Marine Biology
- Marine animal studies overview
- Crustacean biology and ecology
- Marine Bivalve and Aquaculture Studies
- Neuroendocrine regulation and behavior
- Species Distribution and Climate Change
- Evolution and Paleontology Studies
- Primate Behavior and Ecology
- Neurogenesis and neuroplasticity mechanisms
- Echinoderm biology and ecology
- Veterinary Pharmacology and Anesthesia
- Fish Biology and Ecology Studies
- Aquaculture Nutrition and Growth
- Genetic diversity and population structure
- Fish Ecology and Management Studies
- Wildlife Ecology and Conservation
- Fish biology, ecology, and behavior
Universidad Andrés Bello
2016-2025
University of Alicante
2025
Fundación Biodiversidad
2016
University of Chile
2006-2015
Institute of Ecology and Biodiversity
2008-2013
University of Cambridge
2006
Universidad Católica de la Santísima Concepción
2004-2005
Inserm
2003-2004
Universidad de Santiago de Chile
1986
Some 290 species of squids comprise the order Teuthida that belongs to molluscan Class Cephalopoda. Of these, about 30–40 squid have substantial commercial importance around world. Squid fisheries make a rather small contribution world landings from capture relative fish, but proportion has increased steadily over last decade, with some signs recent leveling off. The present overview describes all globe. main ecological and biological features exploited stocks, key aspects management are...
Abstract We have previously shown that progesterone (PROG) is synthesized by Schwann cells and promotes myelin formation in the peripheral nervous system (PNS). now report this neurosteroid also stimulates myelination organotypic slice cultures of 7‐day‐old (P7) rat mouse cerebellum. Myelination was evaluated immunofluorescence analysis basic protein (MBP). After 7 days culture (7DIV), we found adding PROG (2–5 × 10 −5 M) to medium caused a fourfold increase MBP expression when compared...
Recent studies have shown that coastal and shelf cephalopod populations increased globally over the last six decades. Although landings are dominated by squid fishery, which represents nearly 80% of worldwide catches, octopuses cuttlefishes represent ∼10% each. Total reported global production past three decades indicates a relatively steady increase in catch, almost doubling from 179,042 t 1980 to 355,239 2014. Octopus fisheries likely continue grow importance magnitude as many finfish...
In order to establish the effects of systemically administered progesterone on central nervous system (CNS) remyelination, a toxin‐induced model CNS demyelination was used in which rate remyelination is age‐dependent. The rapid young adult rats allowed an assessment potential adverse while slow older its potentially beneficial effects. There no significant difference between control and treated animals. However, modest but increase extent oligodendrocyte response (and comparable decrease...
Within the context of global climate change and overfishing fish stocks, there is some evidence that cephalopod populations are benefiting from this changing setting. These invertebrates show enhanced phenotypic flexibility found polar regions to tropics. Yet, patterns species richness in coastal cephalopods not known. Here, among 370 identified-species, 164 octopuses, 96 cuttlefishes, 54 bobtails bottletails, 48 inshore squids 8 pygmy squids. The most diverse ocean Pacific (with 213...
For the first time, field surveys for exploring diversity and composition of shallow-water polyplacophorans in West Antarctica have been conducted. During austral summer sampling campaigns 2022, 2023 2024, a total 1717 specimens four species were collected from 21 localities. The composition, abundance, estimate assemblages showed that richness decreased southward due to changes composition. ordination analysis high similarity among Thus, seven chiton previously recorded Antarctica, only...
Marine trophodynamics refer to the transfer of energy from prey predators. In marine invertebrates and fishes, nutrients obtained through consumption food and/or are stored as reserves in certain tissues organs including liver, muscle, or gonads, that these subsequently used bioenergetic fuel for highly energy-demanding fundamental physiological processes. southern Humboldt Current System, interaction between two migratory resources top species has been observed: swordfish (Xiphias gladius)...
Abstract Cephalopods are increasingly acknowledged as an ecologically important group in Chilean ecosystems, but also one of their less-known biogeographic components. Notably, this is represented virtually exclusively by non-endemic species, although we hypothesized that distribution over the coast should be constrained similar physical determinants to those affecting endemic taxa. We thus present a first evaluation latitudinal patterns diversity and cephalopod species Chile, based on...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 431:163-171 (2011) - DOI: https://doi.org/10.3354/meps09133 Genetic diversity and demographic history of Dosidicus gigas (Cephalopoda: Ommastrephidae) in Humboldt Current System Christian M. Ibáñez1,2,*, Luis A. Cubillos2, Ricardo Tafur3, Juan Argüelles3, Carmen Yamashiro3, Elie Poulin1 1Laboratorio de...
Here, we evaluate the so‐called Thorson's rule, which posits that direct‐development and larger eggs are favored toward poles in marine organisms whose validity been subject of considerable debate literature, combining an expanded phenotypic dataset encompassing 60 species benthic octopuses with a new molecular phylogeny. Phylogenetic reconstruction shows two clades: clade 1 including families Eledonidae, Megaleledonidae, Bathypolypodidae, Enteroctopodidae, 2 Octopodidae. Egg size,...
In this research we studied the diet of Enteroctopus megalocyathus from three principal locations octopus fishery (Ancud, Quellón and Melinka) in southern Chile. The gastric contents 523 individuals, collected between October 1999 September 2000, were examined statistically analysed. Diet composition was described using detrended correspondence analysis analysed as a function predator gender, body size fishing area. Food items found ~50% octopuses total 14 prey recognized. E. consisted...
RESUMEN.Se analiza la dieta del pez espada en tres zonas de pesca aguas oceánicas Chile central durante el invierno 2003, considerando como hipótesis que tamaño las presas se incrementa significativamente con depredador, conjuntamente una disminución número presas.El estudio realizó sobre base 48 estómagos Xiphias gladius contenido estomacal.Para su análisis utilizó los descriptores cuantitativos frecuencia ocurrencia y método numérico.Se comparó entre muestreo mediante presas.Conjuntamente,...
The habitat of the predator and sample size (stomach number) are some most important factors to consider in study its diet.To investigate these variations we studied diet 51 swordfish Xiphias gladius (range: 173-301 cm) four fishing areas off central Chile (30ºS -40ºS) during autumn-winter 2004.Frequency occurrence, numeric gravimetric methods were used describe diet.The was evaluated using rarefaction curves.Prey richness, diversity, dominance, evenness calculated compared between...
In the area off central-south , a new period of high abundance Dosidicus gigas has occurred since 2001.The seasonal changes in length structure and reproductive condition D. oceanic coastal waters are described for July 2003 to February 2004.The varied significantly between seasons zones.In austral winter, medium-sized, maturing individuals were found while large-sized mature males females present zone.In spring, medium-sized observed contrast, two groups zone: one consisting small immature...