Results 31 to 40 of about 774 (147)

Potential Spatial Mismatches Between Marine Predators and Their Prey in the Southern Hemisphere in Response to Climate Change

open access: yesGlobal Change Biology, Volume 31, Issue 2, February 2025.
Global change is reshaping marine habitats, altering predator–prey interactions and food web dynamics. Using Boosted Regression Trees, we assess habitat suitability shifts for crustaceans, fish, penguins, and pinnipeds across three Southern Hemisphere regions from 1850 to 2100 under two climate scenarios.
Maria Bas   +7 more
wiley   +1 more source

Isotopic niche plasticity in a marine top predator as indicator of a large marine ecosystem food web status

open access: yesEcological Indicators, 2021
As marine ecosystems are harvested or modified by anthropogenic or natural factors, there is an increasing demand for indicators of trophic web health or status.
Javier E. Ciancio   +4 more
doaj   +1 more source

Dietary metabarcoding of keystone sardine species reveals the importance of their ichthyoplankton prey in food webs of the Southern Brazilian Bight fisheries

open access: yesFisheries Oceanography, Volume 33, Issue 4, July 2024.
Abstract Clupeiform fishes are ecologically and economically important species contributing to industrial and artisanal fisheries worldwide. They represent key links in food webs, influencing the dynamic between trophic levels. The dietary interactions of these species are poorly studied in many regions, yet essential for fisheries management.
Anna Karolina Oliveira de Queiroz   +10 more
wiley   +1 more source

ACCEPTABILITY OF ANCHOVY-BASED (Engraulis anchoita) PREPARATIONS

open access: yesDemetra, 2013
This study aimed to assess the acceptability of two preparations of Argentine anchovy with 69 untrained panelists of a university in the southern state of Rio Grande do Sul, Brazil, given the importance of fish consumption for health, the need to ...
Bianca Barbieri Correa da Silva   +4 more
doaj   +1 more source

La pesca costera en la Argentina [PDF]

open access: yes, 2007
Se aborda el estudio de la pesca costera en la Argentina (océano Atlántico sudoccidental) teniendo en cuenta los factores económicos, sociales y políticos que promovieron su retraso o desarrollo.
Carozza, C., Perrotta, R.G., Ruarte, C.
core  

Extração de óleo de resíduos de carpa (Cyprinus carpio) e anchoita (engraulis anchoita) utilizando diferentes métodos

open access: yesVetor, 2016
O aumento de resíduos de pescados gerados e seu potencial uso para o reaproveitamento na geração de novos produtos é uma importante preocupação industrial.
Jaques Rizzi   +2 more
doaj   +4 more sources

A section-sampling design to assess zooplankton distribution in a highly complex hydrographic region (SW Atlantic Ocean, 34-41ºS): insights for a new time series?

open access: yesBrazilian Journal of Oceanography, 2012
Regular fish stock assessment cruises could provide a proper data platform to sample zooplankton. It is essential, however, that adequate sampling designs should be developed for each area so that zooplankton features may be accurately described with ...
Georgina Daniela Cepeda   +3 more
doaj   +1 more source

Length–weight relations of 70 fish species (Actinopterygii) from tropical coastal region of Pernambuco, Northeast Brazil [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2016
The presently reported study provides length–weight relations (LWR) of 70 fish species (Actinopterygii) from the tropical coastal region of Pernambuco, Northeast Brazil: Achirus declivis, Achirus lineatus, Anchoa spinifer, Anchoa tricolor ...
A.P. Viana   +6 more
doaj   +3 more sources

Seasonal diet of Magellanic Penguin (Spheniscus magellanicus) juveniles revealed with a stable isotopes analysis of claws [PDF]

open access: yes, 2015
Se realizó un análisis de isótopos estables en uñas para evaluar la composición de la dieta y el uso estacional de los recursos tróficos en individuos juveniles de Pingüino Patagónico (Spheniscus magellanicus) provenientes de las costas de Brasil.
Cardona, Luis   +5 more
core  

Partial migration in Magellanic penguins

open access: yesJournal of Avian Biology, Volume 2024, Issue 3-4, March/April 2024.
We studied the migration of Magellanic penguins near the southern tip of the breeding distribution, and for the first time found evidence of partial migration for this species within the same colony. Forty‐three percent of the penguins studied stayed within ~ 290 km of the colony (residents), while others went northwards as far as 2000 km. All penguins
Melina Barrionuevo, Esteban Frere
wiley   +1 more source

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