Giancarlo Helar Morón Correa- Ph.D.
- Researcher at AZTI
Giancarlo Helar Morón Correa
- Ph.D.
- Researcher at AZTI
Research in assessment models for tuna stocks
About
11
Publications
2,020
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45
Citations
Introduction
Research in quantitative population dynamics
Current institution
Additional affiliations
April 2022 - May 2023
Position
- Postodoctoral researcher
Description
- Development of the Woods Hole Assessment model
August 2018 - March 2022
January 2014 - August 2018
Position
- Researcher
Description
- Stock assessment models and spatial ecology of small pelagic fishes
Education
August 2018 - February 2022
March 2015 - December 2017
March 2009 - December 2013
Publications
Publications (11)
The EU project SEAwise endeavours to enhance existing multi-stock multi-species Management Strategy Evaluation (MSE) models so that they can be used to define and evaluate fisheries management strategies that address broad Ecosystem-Based Fisheries Management (EBFM) objectives, including in particular identifying Harvest Control Rules (HCRs) that a...
The northwestern Antarctic Peninsula is an important spawning, recruitment, and overwintering ground for Antarctic krill. The region is warming rapidly, and the current impacts of climate and environmental variability on the reproductive cycle of krill remain unclear. Here, we examine the reproductive stage of female krill in the austral winter fro...
Spatial models enable understanding potential redistribution of marine resources associated with ecosystem drivers and climate change. Stock assessment platforms can incorporate spatial processes, but have not been widely implemented or simulation tested. To address this research gap, an international simulation experiment was organized. The study...
State-space assessment models (SSMs) ha v e garnered attention recently because of their ability to estimate time variation in biological and fisheries processes such as recr uitment, nat ural mort alit y, catchabilit y, and selectivit y. Ho w e v er, current SSMs cannot model time-varying growth internally nor accept length data, limiting their us...
The spatial distributions of marine fish populations are influenced by environmental conditions, intrinsic properties of the populations, and prior distribution. The influence of these factors may not be consistent across age classes. For this study, age composition estimates for walleye pollock (Gadus chalcogrammus) collected on bottom-trawl surve...
Distinct types of fish species experience variation in somatic growth rates over their life span; however, growth has historically been assumed to be invariant across time and space in integrated analysis-based stock assessment. A few previous studies have reported biased and imprecise assessment model outcomes when variability in somatic growth wa...
Age composition is defined as the proportion of a fish population belonging to each age class and is an informative input to stock assessment models. Variations in somatic growth rates may lead to larger errors in age composition estimates. To reduce this source of error, we compared the performance of four methods for estimating age compositions o...
The Peruvian anchovy (Engraulis ringens) is the most important small pelagic of the Humboldt Current System (HCS), supporting the largest mono-specific fishery in the world. The spatial behavior of this species tends to be very dynamic at different spatial scales, influenced mostly by its biomass level and environmental factors. The aim of this stu...
Studies about species diversity in terrestrial ecosystem have been the main source of several hypothesis trying to explain patterns in biodiversity. In contrast to other environments and species, patterns of nektonic species diversity dwelling the pelagic environment are not studied widely. The aim of this study was to investigate temporal and spat...
