A5063023215- Turtle Biology and Conservation
- Marine animal studies overview
- Ichthyology and Marine Biology
- Isotope Analysis in Ecology
- Amphibian and Reptile Biology
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Cephalopods and Marine Biology
- Identification and Quantification in Food
- Metabolomics and Mass Spectrometry Studies
- Marine Ecology and Invasive Species
- Global Trade and Competitiveness
- Wildlife Ecology and Conservation
- Space Exploration and Technology
- Liver Disease Diagnosis and Treatment
- Animal Vocal Communication and Behavior
- Coral and Marine Ecosystems Studies
- Muscle metabolism and nutrition
- Primate Behavior and Ecology
- Metabolism and Genetic Disorders
- Marine Biology and Ecology Research
- Mercury impact and mitigation studies
- Animal Behavior and Reproduction
- Amino Acid Enzymes and Metabolism
- Fish Ecology and Management Studies
ecOceánica
2013-2024
WWF Tanzania
2022
Duke University
2008-2021
University of South Carolina Beaufort
2021
Asociación para la Conservación de la Cuenca Amazónica
2016
Marine Conservation Institute
2010
Universidad Nacional Agraria La Molina
2004
Significance Loss of megafauna, termed trophic downgrading, has been found to affect biotic interactions, disturbance regimes, species invasions, and nutrient cycling. One recognized cause in air-breathing marine megafauna is incidental capture or bycatch by fisheries. Characterizing patterns across large ocean regions limited data availability but essential direct conservation management resources. We use empirical identify the global distribution magnitude seabird, mammal, sea turtle three...
Abstract Fisheries bycatch is a primary driver of population declines in several species marine megafauna (e.g., elasmobranchs, mammals, seabirds, turtles). Characterizing the global seascape using data on rates across fisheries essential for highlighting conservation priorities. We compiled comprehensive database reported turtle gillnet, longline, and trawl worldwide from 1990 to 2008. The total was ∼85,000 turtles, but due small percentage fishing effort observed (typically <1% fleets),...
Biodiverse coastal zones are often areas of intense fishing pressure due to the high relative density capacity in these nearshore regions. Although overcapacity is one central challenges fisheries sustainability zones, accurate estimates limited, hampering assessment direct and collateral impacts (e.g., habitat degradation, bycatch) fishing. We compiled a comprehensive database effort metrics corresponding spatial limits used analysis program (FEET) map (measured as boat-meters per km²) six...
Delineating spatial boundaries that accurately encompass complex, often cryptic, life histories of highly migratory marine megafauna can be a significant conservation challenge. For example, turtles range across vast ocean basins and coastal areas, thus complicating the evaluation relative impacts multiple overlapping threats creation coherent strategies. To address these challenges, spatially explicit ‘regional management units’ (RMUs) were developed in 2010 for all turtle species,...
1 Fisheries bycatch has been implicated in declines of many long-lived marine vertebrate populations, but impacts on these populations vary according to spatio-temporal overlap fisheries operations and critical ontogenetic habitat, as well characteristics fishing gear. 2 To provide a framework for comparing the relative different loggerhead sea turtles Caretta caretta, we compiled published data sizes individual loggerheads taken North Atlantic, Pacific Mediterranean fisheries, used Leslie...
Post-hatchling loggerhead turtles ( Caretta caretta ) in the northern Pacific and Atlantic Oceans undertake transoceanic developmental migrations. Similar migratory behaviour is hypothesized South Ocean as post-hatchling are observed Peruvian fisheries, yet no rookeries occur along coast of America. This hypothesis was supported by analyses size-class distribution 123 genetic analysis mtDNA haplotypes 103 nesting females southwest Pacific, 19 post-hatchlings stranded on southeastern...
Plants, bacteria, and fungi produce essential amino acids (EAAs) with distinctive patterns of delta13C values that can be used as naturally occurring fingerprints biosynthetic origin EAAs in a food web. Because animals cannot synthesize must obtain them from food, their tissues reflect delta13C(EAA) found diet, but it is not known how microbes responsible for hindgut fermentation some herbivores influence the hosts' tissues. We examined whether flora are evident green turtles (Chelonia...
Abstract Peru is experiencing a “gastronomic boom” that increasing the demand for seafood. We investigated two implicit assumptions of popular sustainable seafood consumer-based initiatives: (1) labelled correctly, and (2) recommended species are healthy consumers. used DNA barcoding to determine taxonomic identity 449 samples from markets restaurants analysed concentration total mercury (THg) in sub-sample (271 samples) these. found third mislabelled over quarter all had levels above upper...
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...
Stable isotopic compositions in animal tissues have been widely used to gain insight into trophic dynamics, especially of mobile aquatic predators whose behavior and dietary preferences are difficult directly measure. Olive ridley sea turtles (Lepidochelys olivacea) range across >3 million km2 the tropical subtropical eastern Pacific Ocean their ecology open ocean areas has not yet adequately described. Individuals feed within biogeographic regions where varying nutrient cycling regimes...
Abstract Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, influencing key demographic parameters such as somatic growth, maturation, survival. Concepts about trophic space have important implications for local management habitat protection, can shed light resilience to changing climate species occurring over broad spatial scales. For elusive marine animals sea turtles, is challenging study, researchers often rely on other metrics,...
Hybridization among sea turtle species has been widely reported in the Atlantic Ocean, but their detection Pacific Ocean is limited to just two individual hybrid turtles, northern hemisphere. Herein, we report, for first time southeast Pacific, presence of a between green Chelonia mydas and hawksbill Eretmochelys imbricata. This juvenile was captured Peru (4°13′S; 81°10′W) on 5 th January, 2014. The exhibited morphological characteristics C. such as dark coloration, single pair pre-frontal...
La tortuga marina cabezona, Caretta caretta (Linnaeus 1758), tiene amplia distribución en el ámbito mundial. Sin embargo, Perú su presencia no estaba confirmada ni documentada adecuadamente. En esta nota, se presentan datos de restos individuos especie encontrados caletas y puertos pesqueros, así como capturados incidentalmente durante faenas pesqueras con espinel. De manera, la mar peruano quedaría confirmada. Los son juveniles pertenecerían a poblaciones reproductivas cuyas playas...
The Largetooth Sawfish, Pristis pristis, was for a long time considered extirpated from Peru. However, here we report the capture of 2 individuals the north coast Peru, indicating that this species is still extant in Peruvian waters. Both were adult-sized and their encounters occurred during austral summer, which could indicate a seasonal presence those Gillnets are major threat as both specimens incidentally captured with gear. Our finding highlights need continuous research,...
The Eastern South Pacific Right Whale (SRW) (Eubalaena australis) population has gained interest due to its Critically Endangered conservation status. So far, this been confirmed only along the coasts of Chile (18°20'S 56°30'S) and from southern central Peru (17°38'S 12°11'S). Recent records have extended species' known range, highlighting geographic distribution, now reaching 1500 km north. Here, we report six recent records, consisting five sightings one stranding, that expand documented...
The Mobulidae family comprises nine extant manta and devil ray (mobulid) species in the monogeneric genus Mobula, of which five occur Peruvian waters. In this study, we assessed mobulid landings trade along coast Peru by analysing historical captures, monitoring landing sites, conducting interviews with fishers (n = 37) traders 21). A total 7444.9 tons mobulids were reported from 2000 to end 2023 artisanal fisheries through data collected Marine Institute Peru. Between 2013 2023, mean yearly...
Background Whale sharks usually form aggregations by gender and age in many nearshore waters, but they can be as well solitary wanderers. In the Eastern Pacific, there are regular sightings of whale Gulf California Galapagos Islands. Tracking studies indicated movement individuals from to edge continental shelf off northern Peru. Although presence Peruvian coast has been reported since 1955, no proper research conducted so far. Therefore, is a critical information gap on their biology,...
Megamouth Shark, Megachasma pelagios Taylor, Compagno &amp; Struhsaker, 1983, is one of the least-known shark species worldwide. We report encounters four megamouth sharks: caught in a driftnet off Piura (November 2016; sex indeterminate), landed Los Organos (July 2018; female), stranded El &Ntilde;uro indeterminate, ca 300 m total length), and purse seine Lambayeque (June 2019; female, length cm). These are first records from Peru expand species&rsquo; known southern limit by...
Abstract In the south‐eastern Pacific Ocean, few studies of whale sharks ( Rhincodon typus ) exist. Peru, northern coast has been identified as area with highest presence sharks, yet their ecology in this is poorly defined. This study predicts spatial distribution off coastal Peru (03°00′S–04°30′S) during La Niña and El Niño seasonal conditions, utilizing maximum entropy modelling. Between 2009 2018 (except for 2011), 347 were geo‐referenced greatest data recordings austral summer spring...