Results 51 to 60 of about 413 (164)

Fish composition (Teleostei) of the estuarine region of the Macaé River, southeastern Brazil [PDF]

Check List, 2014
The first checklist of fishes of the estuary of the Macaé River (Rio de Janeiro State, Brazil) and its adjacent freshwater section is presented. A total of 24,157 specimens belonging to 110 species in 44 families and 21 orders of the Teleostei were ...
Paula Catelani, Ana Petry, Fabio Di Dario, Vagner Macedo dos Santos, Michael Mincarone   +4 more
doaj   +3 more sources

A Baseline of Fish Species Richness Through eDNA Metabarcoding in an Understudied Tropical Mangrove Coast of Java, Indonesia

Environmental DNA, Volume 7, Issue 6, November–December 2025.
This study demonstrates the use of environmental DNA metabarcoding of fish in a highly diverse but poorly described tropical mangrove ecosystem along the North coast of Java, Indonesia. Our results indicate eDNA metabarcoding can capture temporal differences and provide a baseline for fish diversity for future (eDNA metabarcoding) biodiversity studies ...
Lara Jansen, Eline Loos, Restiana Wisnu Ariyati, Lestari L. Widowati, Sri Rejeki, Adolphe O. Debrot, Reindert Nijland   +6 more
wiley   +1 more source

Shearing Tooth Morphology May Allow Sharks to Access Higher Trophic Levels at Smaller Sizes

Ecology and Evolution, Volume 15, Issue 8, August 2025.
Predator morphology imposes limitations on prey selection due to biomechanical constraints, making some prey functionally inaccessible and thereby constraining predator trophic niches. We assessed how two key components of trophic morphology—tooth shape and body size—affect prey selectivity and trophic niche in two sympatric sharks with contrasting ...
Sabrina Riverón, Vincent Raoult, David J. Slip, Federico Mas, Martín Laporta, Inés Pereyra, Santiago Silveira, Robert G. Harcourt   +7 more
wiley   +1 more source

Restoring mangrove biodiversity: can restored mangroves support fish assemblages comparable to natural mangroves over time?

Restoration Ecology, Volume 33, Issue 4, May 2025.
Despite the recent global increase in mangrove restoration efforts, our understanding of the outcomes and recovery of biodiversity and re‐establishing functionality, such as productive fish habitat, is limited due to the lack of long‐term monitoring. Here, we used a space‐for‐time approach to investigate whether restored mangroves attain similar fish ...
Mark Ram, Marcus Sheaves, Nathan J. Waltham   +2 more
wiley   +1 more source

Fishers' interactions with endangered “rhinorays” in Karimunjawa National Park, and factors influencing willingness to engage in pro‐conservation behavior

Conservation Science and Practice, Volume 7, Issue 4, April 2025.
Abstract The “rhinorays” (giant guitarfish‐Glaucostegidae and wedgefish‐Rhinidae) are a critically endangered group of “shark‐like rays,” which have experienced steep global population declines in the past decade due to overfishing. Their slow life histories and high market value increase the risk of trade‐driven extinction and lead to trade‐offs ...
Faqih Akbar Alghozali, Ashma Hanifah, Muhammad Wiralaga Dwi Gustianto, Maula Nadia, Taufiq Qur'rohman, Kinanti Amalia Niloperbowo, Diah P. Suyanto, Muhammad Ichsan, Andhika Prasetyo, Mahardika Rizqi Himawan, Hollie Booth   +10 more
wiley   +1 more source

Plasma ion levels of freshwater and marine/estuarine teleosts from Southern Brazil

Neotropical Ichthyology
The purpose of this study was to investigate Na+, Cl-, K+, Ca2+, and Mg2+ levels in the plasma of freshwater and marine/estuarine teleosts collected at different salinities (0 to 34) from the estuarine and freshwater portions of the São Gonçalo channel ...
Alexssandro Geferson Becker, Jamile Fabbrin Gonçalves, Jaderson dos Anjos Toledo, Marcelo D. M. Burns, Luciano de Oliveira Garcia, João Paes Vieira, Bernardo Baldisserotto   +6 more
doaj   +1 more source

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

Marine 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, Francisco Gerson Araújo   +1 more
wiley   +1 more source

OSTEOLOGIA DE SCIADES COUMA VALENCIENNES, 1864 (OSTEICHTHYES, SILURIFORMES; ARIIDAE)

The Biologist, 2020
Sciades couma Valenciennes, 1864 se conoce como bragalhão, bagre blanco o bagre común. Tiene una amplia distribución geográfica y habita los ambientes de estuarios / dulceacuícolas. Teniendo en cuenta la falta de datos en la literatura sobre su osteología, este estudio tuvo como objetivo describir el esqueleto de S. couma para ayudar a futuros estudios,
Licar-Rodrigues, Carlos Alailson, Ferreira-Costa, Jociel, Oliveira-Chung, Luiz Bruno, Santos-Espínola, Nayara Barbosa, Carvalho-Viana, Diego, Iannacone, José   +5 more
openaire   +3 more sources

Electrophoretic study on intraspecific variations and interspecific relationships of marine catfishes (Siluriformes, Ariidae) of Cananéia (São Paulo, Brazil): 2. Isozymes of skeletic muscle

Brazilian Journal of Oceanography, 1990
Ten enzymatic systems of skeletic muscle of four species of marine catfishes were analysed by Polyacrylamide flat gel electrophoresis. Out of 17 loci examined, six were polymorphic.
Hana Suzuki, Van Ngan Phan
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, Julia Klein, Harald Ahnelt   +2 more
wiley   +1 more source