Daniela V. Yepsen
A5071000740- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Microbial Community Ecology and Physiology
- Environmental DNA in Biodiversity Studies
- Marine Biology and Ecology Research
- Peatlands and Wetlands Ecology
- Wastewater Treatment and Nitrogen Removal
- Methane Hydrates and Related Phenomena
- Identification and Quantification in Food
- Research Data Management Practices
- Data Quality and Management
- Oceanographic and Atmospheric Processes
- Isotope Analysis in Ecology
University of Concepción
2018-2022
Humans have transformed ecosystems through habitat modification, harvesting, species introduction, and climate change. Changes in distribution composition are often thought to induce biotic homogenization, defined as a decline spatial beta diversity time. However, it is unclear whether homogenization common ocean if changes exhibit linear or more complex dynamics. Here, we assessed patterns of its converse (differentiation) across than 175,000 samples 2,006 demersal fish from 34 regions...
FISHGLOB brings together experts in, and users of, fish monitoring data to support biodiversity research conservation across oceans.
Humans have transformed ecosystems through habitat modification, harvesting, species introduction, and climate change. Changes in distribution composition are often thought to induce biotic homogenization, defined as a decline spatial beta diversity time. However, it is unclear whether homogenization common ocean if changes exhibit linear or more complex dynamics. Here, we assessed patterns of its converse (differentiation) across than 175,000 samples 2,006 demersal fish from 34 regions...
FISHGLOB brings together experts in, and users of, fish monitoring data to support biodiversity research conservation across oceans.
Abstract Marine biota is redistributing at a rapid pace in response to climate change and shifting seascapes. While changes fish populations community structure threaten the sustainability of fisheries, our capacity adapt by tracking projecting marine species remains challenge due data discontinuities biological observations, lack availability, mismatch between real distributions. To assess extent this challenge, we review global status accessibility ongoing scientific bottom trawl surveys....
Coastal wetlands are ecosystems associated with intense carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N O) recycling, modulated by salinity other environmental factors that influence the microbial community involved in greenhouse gases production consumption. In this study, we evaluated of on GHG concentration benthic composition coastal along coast semiarid region. Wetlands were situated landscapes a south-north gradient higher aridity lower anthropogenic impact. Our results...
Abstract Nitrospina bacteria are among the most important nitrite oxidizers in coastal and open‐ocean environments, but relevance of genus contrasts with scarceness information on their ecophysiology habitat range. Thus far, have been only detected at high abundance Chilean waters. These levels often higher than other latitudes. In this study, 16S‐ rRNA gene transcripts (hereafter just transcripts) was measured by reverse transcription quantitative PCR a rocky intertidal gradient compared...
The abundance of juvenile fish changes due to endogenous processes, and determining the functional relationships among conspecifics is essential for fisheries’ management. hake (Merluccius gayi) an overexploited demersal widely distributed in Chile, from 23°39′ S 47°00′ shallow deep water over continental shelf break. We studied spatiotemporal distribution juveniles (from ages 0 1), emphasizing adults. per age data were obtained bottom trawl cruises carried out austral winter between 1997...
Spatial patterns in fish distribution determine most fishing opportunities and tactics learned by fishers. To recurrent grounds of deepwater such as the cardinalfish (Epigonus crassicaudus) south-central zone Chile, we analyzed records logs covering period 1999–2007. Fishing trawls covered from Topocalma (34º06'S) to northwest Corral (39º52'S), compared position individual hauls (Euclidean distance) applying a hierarchical agglomerative clustering technique. The clusters obtained represented...