Source Themes

Modeling the Pacific chub mackerel (Scomber japonicus) ecological niche and future scenarios in the northern Peruvian Current System

To understand and characterize the Pacific chub mackerel (*Scomber japonicus*) spatiotemporal distribution in the northern Peruvian Current System, this study characterized the ecological niche using the minimum volume ellipsoid (MVE) approach …

Improving the gnomonic approach with the gnomonicM R-package to estimate natural mortality throughout different life stages

Natural mortality (M) is defined as the rate of loss that occurs in a fish stock due to natural (non-fishing) causes and can be influenced by density-dependent or density-independent factors. Different methods have been used to estimate M, one of …

Spatio-temporal distribution modeling of dolphinfish (Coryphaena hippurus) in the Pacific Ocean off Peru using artisanal longline fishery data

To better understand and characterize the distribution of the dolphinfish *Coryphaena hippurus* in the Pacific Ocean off Peru, we analyzed spatio-temporal catch per unit effort (CPUE) data from the artisanal longline dolphinfish fishery and …

Temporal changes in mesoscale aggregations and spatial distributionscenarios of the Peruvian anchovy (Engraulis ringens)

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 …

Estimation and variability in size at gonad maturity of chub mackerel (Scomber japonicus peruanus, Jordán & Hubb, 1925) in peruvian waters

The values of size-at-gonad maturity (L50) of chub mackerel (*Scomber japonicus peruanus*) were estimated for the period 1994 – 2017 in the Peruvian littoral. The analysis was performed for the period November - March where the highest reproductive …

Estimating discard excess catch in the industrial purse seine fisheries of the North-Center stock of the Peruvian anchoveta (Engraulis ringens) from an on-board observer program

This paper shows estimates of the discard excess catch in the industrial purse seine fisheries of the North-Center stock of the Peruvian anchoveta (*Engraulis ringens*). Discard excess catch is defined as the portion of the catch that is thrown into …