Guanabara bay - Open Access .click

Results 41 to 50 of about 519 (177)

Unveiling Shell Geometry: Morphometric Differences Between the Invasive Mussel Perna viridis and the Native Perna perna

New Zealand Journal of Zoology, Volume 53, Issue 1, March 2026.
Perna viridis is an invasive mussel species recently introduced to the southeastern coast of Brazil, where it coexists with the native Perna perna. Morphological similarity between these species, particularly in early life stages, has led to frequent misidentifications, compromising ecological assessments and management efforts.
Alexandre R. da Silva +7 more
wiley +1 more source

Fluctuating asymmetry and organosomatic indexes in fish: the Corocoro grunt as a case study (Haemulidae)

Anais da Academia Brasileira de Ciências, 2021
Fluctuation asymmetries (FA) are random on the bilateral symmetry plan of paired morphological characters, and other types of symmetry, such as: for instance, translational or rotational symmetry, in response to environmental, and genetic stress.
LUANA B. SEIXAS +2 more
doaj +1 more source

The Dark Side of Mucus: Stress‐Induced Mucus Aggregate (SIMA) on Tubastraea Corals in a Heavily Impacted Bay

Austral Ecology, Volume 50, Issue 8, August 2025.
ABSTRACT This study investigates the absence of non‐indigenous sun coral Tubastraea in Guanabara Bay, Rio de Janeiro, despite its presence on nearby islands. Tubastraea corals are known for their high reproductive plasticity and resilience to varying environmental conditions.
Alexandre Dias Kassuga +5 more
wiley +1 more source

Efeito de sedimentos contaminados sobre a excreção de nitrogênio do camarão Penaeus paulensis

Brazilian Archives of Biology and Technology, 1999
Physiological response (ammonia excretion) of the shrimp Penaeus paulensis exposed to contaminated sediments of Guanabara Bay and Sepetiba Bay (Rio de Janeiro - Brazil), was monitored for 52 days.
Rosane B.C. Moraes +4 more
doaj +1 more source

A strong CO₂ sink enhanced by eutrophication in a tropical coastal embayment (Guanabara Bay, Rio de Janeiro, Brazil) [PDF]

Biogeosciences, 2015
In contrast to its small surface area, the coastal zone plays a disproportionate role in the global carbon cycle. Carbon production, transformation, emission and burial rates at the land–ocean interface are significant at the global scale but still ...
L. C. Cotovicz Jr. +4 more
doaj +1 more source

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

Limnology 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

Polychaete assemblage of an impacted estuary, Guanabara Bay, Rio de Janeiro, Brazil

Brazilian Journal of Oceanography, 2009
Thirty-eight stations were sampled in Guanabara Bay, Rio de Janeiro, Brazil, to assess the spatio-temporal diversity and biomass of sublittoral polychaetes.
Leonardo Santi, Marcos Tavares
doaj +1 more source

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

Conservation 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

Prospecção hidrobiológica da Baía de Sepetiba Color and transparence of waters of Sepetiba Bay, in Rio de Janeiro State

Memorias do Instituto Oswaldo Cruz, 1971
Côr das águas de Sepetiba; as pròpriamente marítimas, pela Escala de Forel e as outras côres aparentes totais feitas por comparação com escalas de SÉGUY e com o Dicionário de Côres de MAERZ & PAUL, 1950.
Lejeune P. H. de Oliveira
doaj +1 more source

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

Global 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

14. life underwater
brazil
13. climate action

pollution
environmental monitoring
15. life on land

baía de guanabara
animals
bays