Results 21 to 30 of about 67,399 (177)

Thysanoteuthis rhombus Troschel, 1857 (Teuthida: Thysanoteuthidae) calamar diamante, registro en la zona costera de Ica, Perú

open access: yesRevista Peruana de Biología, 2021
En el presente trabajo a través de la pesca artesanal se registra por primera vez Thysanoteuthis rhombus en el litoral de Pisco y se amplía su rango de distribución en el pacífico oriental hasta Ica, Perú.
Máximo A. Roque-Sánchez   +1 more
doaj   +1 more source

Estudio del mecanismo focal de los terremotos a partir de ondas sísmicas. Aplicación a terremotos de las dorsales del Atlántico y Oriental del Pacífico [PDF]

open access: yes, 1977
En este trabajo se presenta un estudio de los parámetros dinámicos de terremotos ocurridos bajo las dorsales del Atlántico y Oriental del Pacífico, así como de la variación regional del coeficiente de atenuación de las ondas Rayleigh para la región ...
Correig i Blanchar, Antoni
core   +1 more source

The far side of capitalism: Institutions and trade financing in Manila during the long eighteenth century

open access: yesThe Economic History Review, Volume 78, Issue 4, Page 1068-1087, November 2025.
Abstract Sustained long‐distance trade in the early modern era necessitated institutional mechanisms capable of solving three interrelated challenges: the need to mobilize an unprecedented volume of capital and to lock it in for long periods of time, ways of mitigating the principal–agent problem across continents, and methods to internalize and ...
Juan José Rivas Moreno
wiley   +1 more source

Haplotypic characterization of the olive ridley turtle (Lepidochelys olivacea) in northwest Mexico: the northernmost limit of its distribution

open access: yesAnimal Biodiversity and Conservation
Caracterización haplotípica de la tortuga golfina (Lepidochelys olivacea) en el noroeste de México: el límite septentrional de su distribución La tortuga golfina (L. olivacea) tiene una distribución pantropical.
S. Campista León   +6 more
doaj   +1 more source

A review of the population structure of yellowfin tuna, Thunnus albacares, in the Eastern Pacific Ocean [PDF]

open access: yes, 1964
ENGLISH: Since its inception in 1950 by agreement between the Republic of Costa Rica and the United States of America, the Inter-American Tropical Tuna Commission has been engaged in studies of the biology, ecology and population dynamics of yellowfin ...
Alverson, Franklin G.   +3 more
core  

Worldwide Soundscapes: A Synthesis of Passive Acoustic Monitoring Across Realms

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 5, May 2025.
ABSTRACT Aim The urgency for remote, reliable and scalable biodiversity monitoring amidst mounting human pressures on ecosystems has sparked worldwide interest in Passive Acoustic Monitoring (PAM), which can track life underwater and on land. However, we lack a unified methodology to report this sampling effort and a comprehensive overview of PAM ...
Kevin F. A. Darras   +580 more
wiley   +1 more source

Estructura genética poblacional de la fragata común en México: un análisis integrativo de la influencia del comportamiento reproductivo y de la dispersión sesgada entre sexos

open access: yesRevista Mexicana de Biodiversidad, 2015
La fragata común (Fregata magnificens) es un ave marina monógama, ampliamente distribuida, neotropicaly pelágica, con bajos costos de vuelo, alta capacidad de dispersión, dispersión sesgada por sexo y selección de parejapor parte de la hembra.
Axayácatl Rocha-Olivares   +1 more
doaj   +1 more source

Measures of tuna abundance from purse-seine operations in the Eastern Pacific Ocean, adjusted for fleet-wide evolution of increased fishing power, 1960-1971 [PDF]

open access: yes, 1975
ENGLISH: The fishing power of the tuna purse-seine fleet of the eastern Pacific Ocean has increased since the early 1960's. Because the entire fleet seems to have adopted equipment and techniques to increase its efficiency in capturing tunas, traditional
Pella, Jerome J.   +1 more
core  

PRIMER REGISTRO DE LA COBIA, Rachycentron canadum LINNAEUS (PISCES: RACHYCENTRIDAE) EN EL PACÍFICO PANAMEÑO

open access: yesTecnociencia, 2016
La cobia (Rachycentron canadum) es una especie marina de amplia distribución en las aguas tropicales, subtropicales y templadas del Atlántico e Indopacífico, y hasta hace poco ausente en el Pacífico Oriental.
Ángel Javier Vega   +2 more
doaj  

Changes in the size structure of the yellowfin tuna population of the tropical eastern Pacific Ocean from 1947 to 1955 [PDF]

open access: yes, 1957
ENGLISH: Morphometric studies by Godsil (1948), Godsil and Greenhood (1951), Royce (1953) and Schaefer (1952, 1955) have indicated that the yellowfin tuna of the Eastern Pacific are distinct from those of the Central Pacific. Tagging of yellowfin tuna by
Broadhead, Gordon C.
core  

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