Results 81 to 90 of about 2,361 (207)

Description d'Acnodon senai n. sp. du Rio Jari (Brésil, Amapa) et redescription d'A. normani (Teleostei, serrasalmidae) [PDF]

open access: yes, 1990
#Acnodon senai$ n. sp., décrite du rio Jari (Brésil, Amapa), est une espèce proche de #A. normani$ Gosline, 1951 décrite du rio Tocantins. Ces deux espèces ont un museau pointu, une bouche terminale et deux séries de dents du prémaxillaire nettement ...
Dos Santos, G.M., Jégu, Michel
core  

Parasites Are Paramount: Vertical Trophic Positions of Parasitic Catfishes in a Tropical River Food Web

open access: yesEcology of Freshwater Fish, Volume 34, Issue 4, October 2025.
ABSTRACT The Neotropical catfish family Trichomycteridae contains parasitic fishes that include scale and mucus feeders (subfamily Stegophilinae) and blood feeders (i.e., ‘candirus’, subfamily Vandelliinae). The influence of parasitic catfishes on food web dynamics is unknown.
Carmen G. Montaña   +7 more
wiley   +1 more source

The phylogenetic position of Anacanthorus (Monogenea, Dactylogyridae) parasitizing Brazilian serrasalmids (Characiformes)

open access: yesParasite, 2019
Anacanthorus (Anacanthorinae) is one of the most speciose and common genera of neotropical monogeneans, yet there are still many gaps in our knowledge concerning their diversity and phylogeny.
Moreira Juliana   +2 more
doaj   +1 more source

Investigations on the respiration of the Neotropical fish, Colossoma macropomum (Serrasalmidae). The influence of weight and temperature on the routine oxygen consumption

open access: yes, 1983
The influence of weight and temperature on the routine oxygen consumption of Colossoma macropomum, a Neotropical fish species of the family Serrasalmidae, was investigated using a constant flow respirometer.
Saint-Paul, U.
core  

Fish fauna from Río Pilcomayo National Park and Ramsar Site and its surroundings, Formosa, Argentina [PDF]

open access: yes, 2014
The first list of fish species from the Río Pilcomayo National Park and Ramsar Site (RPNP), located in the WetChaco plains of Northern Argentina is presented here.
Baigún, Claudio Rafael M.   +5 more
core   +4 more sources

A Global Account of Established Non‐Native Fish Species

open access: yesGlobal Change Biology, Volume 31, Issue 8, August 2025.
This study compiles the most complete global database of non‐native fish species that have successfully established themselves in new freshwater and marine environments. It documents 1535 species across 193 countries, identifies their main introduction routes—such as aquarium trade, aquaculture, and artificial waterways—and highlights that many ...
Phillip J. Haubrock   +13 more
wiley   +1 more source

Inventarisasi Ektoparasit Protozoa dan Arthropoda yang Menginfestasi Ikan Air Tawar di Kota Banyuwangi, Jawa Timur [PDF]

open access: yes, 2018
Kerugian yang ditimbulkan akibat infestasi ektoparasit memang tidak sebesar kerugian yang diakibatkan oleh infeksi organisme lain seperti virus dan bakteri, namun infeksi ektoparasit dapat menjadi salah satu faktor predisposisi bagi infeksi organisme ...
Budi, D. S. (Darmawan)   +2 more
core   +3 more sources

Tometes camunani (Characiformes: Serrasalmidae), a new species of phytophagous fish from the Guiana Shield, rio Trombetas basin, Brazil

open access: yesNeotropical Ichthyology
A new species of Serrasalmidae, Tometes camunani, is described from the upper drainages of the rio Trombetas basin, Pará State, Brazil. The new species is distinguished from its congeners by having neurocranium with a slight concavity at the level of the
Marcelo C. Andrade   +2 more
doaj   +1 more source

Long‐term interventions by conservation and development projects support successful recovery of tropical peatlands in Amazonia

open access: yesPeople and Nature, Volume 7, Issue 4, Page 871-886, April 2025.
Abstract Rural communities in Amazonia rely on harvesting Mauritia flexuosa fruit, a dominant peatland palm, for their subsistence and income. However, these palms are felled to harvest the fruits, which has led to reduced resource availability due to the pressure exerted by the increasing fruit demand.
Eurídice N. Honorio Coronado   +24 more
wiley   +1 more source

Seleção de presas emalhadas em redes de espera por piranhas, Serrasalmus spilopleura e S. marginatus (Pisces, Serrasalmidae)

open access: yesActa Scientiarum: Biological Sciences, 2008
A freqüência de ataque de piranhas aos peixes emalhados foi analisada a partir de capturas mensais utilizando redes de espera, expostas durante 24 horas, com despescas a cada 8 horas, no período de junho de 1987 a maio de 1988, em lagoas, canais e rios ...
Carlos Sérgio Agostinho   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy