Bottom-up processes drive isotopic variation in the South American sea lion Otaria flavescens across a 2300 km latitudinal gradient

C Barrios-Guzmán, C Harrod, A Guerrero… - Marine Environmental …, 2024 - Elsevier
Spatial differences in the isotope values of widely distributed marine apex consumers may
reflect geographical differences in the isotopic composition of basal resources (eg …

The Red Squat Lobster Pleuroncodes monodon in the Humboldt Current System: From Their Ecology to Commercial Attributes as Marine Bioresource

AL Yapur-Pancorvo, M Quispe-Machaca… - Animals, 2023 - mdpi.com
Simple Summary The red squat lobster Pleuroncodes monodon, a key crustacean in the
Humboldt Current System (HCS), plays an important role as predator and prey of several …

Combining potential and realized distribution modeling of telemetry data for a bycatch risk assessment

BH Frantz, M Sepúlveda, M García‐Reyes… - Ecology and …, 2024 - Wiley Online Library
Establishing marine species distributions is essential for guiding management and can be
estimated by identifying potential favorable habitat at a population level and incorporating …

Strategies for segregation during foraging in sympatric otariids of the Peruvian upwelling Humboldt Current System

S Cárdenas-Alayza, MJ Adkesson, D Gutiérrez… - Marine Ecology …, 2022 - int-res.com
The competitive exclusion principle predicts that species exhibit segregation mechanisms to
coexist. In the Humboldt Current System, South American sea lions Otaria byronia (SASL) …

Resource partitioning as a mechanism for trophic segregation in sympatric otariids from the productive upwelling Peruvian Humboldt Current System.

S Cárdenas‐Alayza, DA Torres, D Gutiérrez… - Austral …, 2022 - search.ebscohost.com
Abstract Arias-Schreiber (2003) found that 20% of SAFS and 32% of SASL samples
contained cephalopod beaks, whereas in our study cephalopod consumption was …

Sympatric otariids increase trophic segregation in response to warming ocean conditions in Peruvian Humboldt Current System

S Cárdenas-Alayza, MJ Adkesson, MR Edwards… - Plos one, 2022 - journals.plos.org
Determining trophic habits of predator communities is essential to measure interspecific
interactions and response to environmental fluctuations. South American fur seals …

Evaluation of trace element concentrations in the serum and vibrissae of Peruvian pinnipeds (Arctocephalus australis and Otaria byronia)

C Kooyomjian, D Giarikos… - The Journal of …, 2022 - meridian.allenpress.com
Concentrations of 15 trace elements (aluminum, arsenic, cadmium, chromium, cobalt,
copper, iron, lead, manganese, mercury, nickel, selenium, tin, vanadium, and zinc) were …

Contrasting nursery habitats promote variations in the bioenergetic condition of juvenile female red squat lobsters (Pleuroncodes monodon) of the Southern Pacific …

F Guzmán-Rivas, M Quispe, Á Urzúa - PeerJ, 2022 - peerj.com
The red squat lobster Pleuroncodes monodon is an important fishery resource in the
Humboldt Current System (HCS). This decapod is exploited in two fishing units:(a) the …

Elemental distribution and offloading in Peruvian pinnipeds

C Kooyomjian - 2021 - nsuworks.nova.edu
Two sympatric pinniped species, Peruvian fur seals (PFS; Arctocephalus australis unnamed
ssp.) and South American sea lions (SASL; Otaria byronia), reside in highly productive …

[PDF][PDF] Habitat and bycatch risk of South American sea lions in northern Chile

BH Frantz - 2022 - scholarworks.calstate.edu
As top predators in coastal systems, pinnipeds (seals, sea lions and the walrus) play a
significant role in the structure of marine communities (Estes et al. 2016, Trites 2001). In …