A5041298683- Marine animal studies overview
- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Arctic and Antarctic ice dynamics
- Cephalopods and Marine Biology
- Marine Invertebrate Physiology and Ecology
- Underwater Acoustics Research
- Marine Ecology and Invasive Species
- Evolutionary Game Theory and Cooperation
- Parasite Biology and Host Interactions
- Mollusks and Parasites Studies
- Aquatic Invertebrate Ecology and Behavior
- Marine and environmental studies
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Marine Biology and Environmental Chemistry
- Turtle Biology and Conservation
- Ichthyology and Marine Biology
- Aerospace Engineering and Energy Systems
- Genetic diversity and population structure
- Microplastics and Plastic Pollution
- Environmental and Cultural Studies in Latin America and Beyond
University of the Pacific
2017-2024
Royal Roads University
2024
National University of San Marcos
2020-2023
University of Antofagasta
2012-2021
Universidad Científica del Sur
2019-2020
ecOceánica
2014-2016
Universidad Nacional Agraria La Molina
2004-2016
Universidad Católica del Norte
2006-2011
Portuguese Environment Agency
2011
AVM Faculdade Integrada
2011
Anthropogenic Marine Debris (AMD) in the SE Pacific has primarily local origins from land-based sources, including cities (coastal and inland), beach-goers, aquaculture, fisheries. The low frequency of AMD colonized by oceanic biota (bryozoans, lepadid barnacles) suggests that most litter items coastal waters Humboldt Current System (HCS) are pulled offshore into South Subtropical Gyre (SPSG). highest densities floating micro- macroplastics reported SPSG. An extensive survey photographic...
Abstract Since the implementation of commercial whaling ban in 1980s, whale‐watching has become most important economic activity involving whales worldwide. Whale‐watching is promoted as a platform for education and conservation awareness marine biodiversity. In Peru, where cetacean species are still jeopardy, may play an part promoting protection these species. This study aimed to determine degree tourists' knowledge regarding ecology status evaluate if tours could serve platforms educating...
Litter from anthropogenic sources is commonly observed on beaches in the SE Pacific.The composition of litter found shore suggests that most it has passed relatively little time at sea, and mostly local sources.In southern Chile, stray items aquaculture installations comprise garbage, whereas central northern Chile Peru, general household common.Abundances are highest areas with intense human activities, i.e. harbors, cities, centers.Impacts marine life observed, but have not been...
Abstract Massive proliferations of scyphozoan jellyfish considerably affect human industries and irreversibly change food webs. Efforts to understand the role in marine ecosystems are based on a life cycle model described 200 years ago. According this paradigm pelagic medusae is considered seasonal alternates with benthic polyp stage from which it derives. However, we provide evidence that a) occurrence several species not restricted season year, they overwinter, b) polyp- medusa generations...
Understanding the patterns of spatial and temporal distribution in threshold habitats highly migratory endangered species is important for understanding their habitat requirements recovery trends. Herein, we present new data about humpback whales (Megaptera novaeangliae) neritic waters off northern coast Peru: an area that constitutes a transitional path from cold, upwelling to warm equatorial where breeding located. Data was collected during four consecutive austral winter/spring seasons...
Abstract Latitudinal preferences within the breeding range have been suggested for Breeding Stock G humpback whales that summer in different feeding areas of eastern South Pacific. To address this hypothesis, photo‐identified from Antarctic Peninsula and Fueguian Archipelago (southern Chile) were compared with lower latitudes extending northern Peru to Costa Rica. This comparison was performed over a time span includes 18 austral seasons. A total 238 identified 25 among those at grounds. Our...
The biogeography of the Peruvian Eastern Pacific coast has been described based on oceanographic parameters and qualitative species occurrence data. This generated disagreement about limits existence different biogeographic units. In this study, distribution rocky-shore macrobenthic communities were recorded over 41 sites along coastline (3.5°S-13.5°S) analyzed together with historic abiotic data in order to quantitatively evaluate zonation rocky intertidal throughout region its relationship...
The trophic interactions between the scyphozoan medusa Chrysaora plocamia and palm ruff Seriolella violacea were investigated off northern Chile showed that large numbers of hyperiid amphipods parasitizing may channel energy back to fishes, which feed on parasites. biomass hyperiids eaten by fish was a function medusa. This temporally available food supply enhance recruitment. number diverse jellyfish species represents missing link in current efforts understand effects blooms marine webs.
In order to enhance protection and conservation strategies for endangered green turtles (Chelonia mydas), the identification of neritic habitats where this species aggregates is mandatory. Herein, we present new information about population parameters residence time two aggregations from 2010 2013; one in an upwelling dominated site (Paracas ∼14°S) other ecotone zone warm equatorial conditions (El Ñuro ∼4°S) Southeast Pacific. We predicted proportionally more adult individuals would occur...
From late July to the end of September 2009, temporal and spatial distribution group composition humpback whales (Megaptera novaeangliae) were studied in order provide new information about species northern Peru, southern limit breeding area for Southeast Pacific population. Daily surveys made from a whale-watching boat Los Organos (04°10'38.78"S, 81°8'04.40"W) covering an approximately 74km2. Data geographic position are presented. A total 43 trips yielded 124 sightings. Whales observed...
Abstract Although there is extensive information concerning the colonization sequences of benthic communities, little known about successional development subtidal hard‐bottom habitats in highly productive coastal upwelling areas. In these systems, succession predicted to be fast due high growth rate later dominant colonizers. Using artificial hard substrata a field experiment was conducted rocky area off Northern Chile (Humboldt Current System) and monitored at 3‐month intervals test...
The trophic flow of a species is considered characteristic trait reflecting its position and function in the ecosystem interaction with environment. However, climate patterns are changing we ignore how being affected. In Humboldt Current ecosystem, arguably one most productive marine systems, El Niño-Southern Oscillation main source interannual longer-term variability. To assess effect this variability on built 16-year series mass-specific somatic production rate (P/B) Peruvian scallop (...
Hypoxia is one of the most important stressors affecting health conditions coastal ecosystems. In highly productive ecosystems such as Humboldt Current ecosystem, oxygen minimum zone an abiotic factor modulating structure benthic communities over continental shelf. Herein, we study soft-bottom macrobenthic along a depth gradient–at 10, 20, 30 and 50 m–for two years to understand how hypoxia affects shallow at sites in Mejillones Bay (23°S) northern Chile. We test hypothesis that, during...
Interactions between whale-watching boats and cetaceans can lead to changes in their behavior. From a management perspective, it is important understand how this type of disturbance be translated into physiological effects, such as energetic metabolism. Humpback whales ( Megaptera novaeangliae ) typically do not feed while breeding grounds, thus they depend on finite energy reserves. The effect the metabolism humpback whales, ground northern Peru (4°10′35″S, 81°08′03″W) was evaluated. Groups...
Jellyfish are arguably one of the most important predators in sea, and understanding their role ecosystem functioning is critical. Modelling seems best approach to understand forecast role, but these efforts seriously hampered by scant knowledge detailed diet composition species. We sampled a population largest scyphomedusa (Chrysaora plocamia) from an upwelling centre Humboldt Current Upwelling System. Fish eggs/larvae holoplanktonic crustaceans represented substantial proportion (between...
ABSTRACT Whale‐watching is one of the fastest growing ecotourism industries and involves observation endangered wild cetacean species. However, this growth has raised concerns because negative effects activity may have on behavior survival focal Hence, detecting requires sensitive analytical methods allowing implementation regulations to protect welfare. We compared performance different hypothesis tests from classical Bayesian approaches detect whale‐watching humpback whale ( Megaptera...
Whale-watching tourism is growing rapidly worldwide. Currently, it occurs in more than 119 countries and estimated to produce US$2.5 billion annual revenue. In northern Peru, this industry relatively new, the economic impact generated from whale watching remains unknown. This study was designed provide an assessment of whale-watching activity Peru. area focused on humpback whales ( Megaptera novaeangliae ). 2018, we conducted surveys 199 whale-watch tourists six tour companies estimate...