Results 61 to 70 of about 473,483 (200)

Eutrophication triggers diel and seasonal shifts of carbon dioxide and oxygen in tropical urban coastal waters

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 3, Page 329-339, June 2025.
Abstract Coastal waters play a pivotal role in the global carbon cycle, showing increased short‐term variability of dissolved oxygen saturation (DOsat) and partial pressure of greenhouse gases like carbon dioxide (pCO2), especially in underrepresented tropical eutrophic environments.
Tainan da Fonseca Fernandes   +8 more
wiley   +1 more source

Table_1_Massive Blooms of Chattonella subsalsa Biecheler (Raphidophyceae) in a Hypereutrophic, Tropical Estuary—Guanabara Bay, Brazil.pdf

open access: yes, 2019
Cell concentrations of the potentially harmful raphidophyte Chattonella subsalsa Biecheler were quantified in surface waters of Guanabara Bay, a heavily eutrophicated estuarine system in tropical Brazil, from February 2014 to January 2018.
Daisyane M. Chaves (6451553)   +12 more
core   +1 more source

Rio de Janeiro, Sugarloaf and Bay Entrance, Brazil.

open access: yes, 1905
Lantern slide of Rio de Janeiro showing Sugar Loaf Mountain (Pao de Acucar) and Guanabara Bay (Baía de Guanabara), Brazil, circa 1905https://research.library.kutztown.edu/lanternslideseducation/1951/thumbnail ...
Keystone View Company
core   +1 more source

Seasonal variation in fish larvae at the entrance of Guanabara Bay, Brazil [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2005
Studies were carried out to find out qualitative and quantitative temporal variations in fish larvae to relate seasonal, diurnal and tidal cycles to the density of larvae. Sampling was performed at one station, during two three-day periods in September 1995 and March 1996. Samples were collected during ebb and flood tides,in oblique hauls using a bongo
Castro, Marcia S. de   +2 more
openaire   +4 more sources

Assessing conservation priorities for seahorses in Brazil reveals gaps in current protected areas

open access: yesConservation Science and Practice, Volume 7, Issue 6, June 2025.
Abstract Seahorses are rare and threatened marine species facing increasing risks from habitat degradation and overexploitation. Understanding their distribution is critical for effective conservation planning, yet comprehensive studies are limited, including in Brazil. This study aimed to conduct a gap analysis and identify priority areas for seahorse
Anna Karolina Martins Borges   +3 more
wiley   +1 more source

A Tropical Cuauhtemoc: Celebrating the Cosmic Race at the Guanabara Bay

open access: yesAnales del Instituto de Investigaciones Estéticas, 1994
The paper analyzes José Vasconcelos’ participation before the Mexican delegation in the International Fair in Rio de Janeiro in 1922. In particular, it focuses on the manner in which Vasconcelos’ ideas regarding the cosmic race were transformed into acts and objects.
openaire   +3 more sources

BioTIME 2.0: Expanding and Improving a Database of Biodiversity Time Series

open access: yesGlobal Ecology and Biogeography, Volume 34, Issue 5, May 2025.
ABSTRACT Motivation Here, we make available a second version of the BioTIME database, which compiles records of abundance estimates for species in sample events of ecological assemblages through time. The updated version expands version 1.0 of the database by doubling the number of studies and includes substantial additional curation to the taxonomic ...
Maria Dornelas   +484 more
wiley   +1 more source

Villegagnon & Cook: tupinambá e havaiano Villegagnon & Cook: tupinamba and hawaiian

open access: yesHistória, 2008
Trata-se de propor uma simetria entre ao que ocorreu na Baía de Guanabara, no século XVI, entre Tupinambá e franceses e na Baía de Kealakakua, no século XVIII, entre havaianos e ingleses, levando em consideração a dinâmica dos mal-entendidos.
Christina Osward
doaj   +1 more source

Fisheries and conflicts in Guanabara Bay, Rio de Janeiro, Brazil [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2006
Despite the magnitude of domestic and industrial pollution, fishery yield registered in several landing points at Guanabara Bay, between April 2001 and March 2002 was slightly over 19,000 tons, corresponding to a value of US$ 4.8 million. When considered only the fish directed to the food market, the total catch amounted to about 6,300 tons and a value
Jablonski, Silvio   +2 more
openaire   +4 more sources

Assessing Fish Community Structure and Diversity Across Environmental Gradients in a Tropical Bay

open access: yesMarine Ecology, Volume 46, Issue 2, March 2025.
ABSTRACT Understanding the relationship between species distribution and the environment across spatial gradients is crucial for biodiversity evaluation. We surveyed fish populations in a tropical bay, covering a spatial gradient from the outer zone with favorable marine conditions to the inner zone affected by human activities.
Leonardo Almeida Freitas   +1 more
wiley   +1 more source

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