Results 51 to 60 of about 499 (175)
Frontiers in Marine Science, 2020 The collapse of marine fisheries had caused a cascade of ecological, social and economic consequences. Recognizing the complex nature of the fisheries collapses is essential for understanding the impact of human activities on natural systems.
Mauricio Lima +7 more
doaj +1 more source
Marine Ecology, Volume 46, Issue 5, September/October 2025.ABSTRACT The northern Humboldt Current System (nHCS) has high environmental variability that impacts key demographic and community‐scale processes. Understanding the role and ecological implications of these interannual or long‐term events is crucial in describing the dynamics of the nHCS community. Using catch data from pelagic assessment surveys from
Paola Galloso +3 more
wiley +1 more source
Clarifying a trophic black box: stable isotope analysis reveals unexpected dietary variation in the Peruvian anchovy Engraulis ringens [PDF]
PeerJ, 2019 Background Small fishes play fundamental roles in pelagic ecosystems, channelling energy and nutrients from primary producers to higher trophic levels.
Jessica Pizarro +2 more
doaj +2 more sources
Impacts of climate‐related stressors on social group cohesion and individual sociability in fish
Biological Reviews, Volume 99, Issue 6, Page 2035-2059, December 2024.ABSTRACT Group‐living in animals comes with a number of benefits associated with predator avoidance, foraging, and reproduction. A large proportion of fish species display grouping behaviour. Fish may also be particularly vulnerable to climate‐related stressors including thermal variation, hypoxia, and acidification.
Izzy C. Tiddy +4 more
wiley +1 more source
Atrésie chez le chinchard Trachurus Murphyi Nichols, 1920 : implications dans la dynamique de la reproduction [PDF]
, 2019 The Chilean jack mackerel Trachurus murphyi support an important fishery in the South-eastern Pacific Ocean which has declined considerably over time. In this thesis, morphology of atretic oocytes in T.
Gonzalez Kother, Paola Alejandra
core
, 2020 : The Chilean jack mackerel Trachurus murphyi support an important fishery in the South-eastern Pacific Ocean and has declined considerably over time. T.
González, M. +6 more
core +1 more source
Can small pelagic fish landings be used as predictors of high-frequency oceanographic fluctuations in the 1–2 El Niño region? [PDF]
Advances in Geosciences, 2016 A group of small pelagic fish captured between 1981 and 2012 within El Niño area 1–2 by the Ecuadorian fleet was correlated with the oceanographic Multivariate ENSO Index (MEI), and the Oceanographic El Niño Index (ONI) referred to El Niño region 3–4.
F. I. Ormaza-González +5 more
doaj +1 more source
Hyperostosis in Fishes: An Update With New Species Records
Journal of Morphology, Volume 285, Issue 11, November 2024.Hyperostosis is an enigmatic dimension of diversity in the anatomy of fishes. This excessive overgrowth of bone is natural in origin, occurs almost exclusively in marine fishes, is generally species‐specific, and becomes fully developed only in large individuals. We document hyperostosis in 35 families, 89 genera, and 153 species.
William F. Smith‐Vaniz +2 more
wiley +1 more source
Age of Jack mackerel Trachrus murphyi (Carangidae) using daily growth rings in sagittae otoliths
Gayana, 2019 Growth of Jack mackerel (Trachurus murphyi) was estimated using daily growth rings in fish collected in central-south Chile from 2004 to 2011. The von Bertalanffy growth curve at length for both sexes (n=210 individuals) is FL = 75*[1-e-0.16(t+0 ...
Lilian Cisterna, Hugo Arancibia
doaj
Patrones de variabilidad ambiental en el mar peruano
Revista Peruana de Biología, 2013 Se describen los escenarios ambientales y los patrones de variabilidad observados en el mar peruano a partir del análisis de información obtenida por el Instituto del Mar del Perú entre los años 1960 – 2011.
Roberto Flores +3 more
doaj +1 more source