Results 61 to 70 of about 6,623 (221)

Spatiotemporal assessment of benthic macroinvertebrate communities in the Bermejo River Basin in the Ecuadorian Amazonia

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 3, Page 371-380, June 2025.
Abstract The Cofán communities rely on the Cofán Bermejo Ecological Reserve for their survival and cultural practices. Due to the rugged and inaccessible topography of the reserve in the Northern Ecuadorian Amazon region, limited biomonitoring and ecological characterization studies of the ecosystem health have been conducted.
Federico Sinche Chele   +8 more
wiley   +1 more source

Taxonomical study of laboratory reared developmental stages of Palaemon semmelinkii (de Man, 1881) (Crustacea: Caridea: Palaemonidae) [PDF]

open access: yesArthropods
The ovigerous female of Palaemon semmelinkii (de Man, 1881) was collected from Ambro Creek (Lat. 24o34'9''N Long. 67o60'8'') and kept in the laboratory.
Farhana S. Ghory, Quddusi B. Kazmi
doaj  

Temporal Demographic Patterns in Amazonian Upland Shrimps Related to Stream Hydraulics and Precipitation

open access: yesFreshwater Biology, Volume 70, Issue 5, May 2025.
ABSTRACT Reports of seasonal patterns in reproduction are uncommon for Amazonian upland‐stream shrimps (Caridea: Palaemonidae), since changes provoked by heavy rainfall in these systems are not as marked as in large rivers. Differences in the proportion of ovigerous females throughout the year are subtle and seem to be more a result of responses to ...
Elmo Pereira da Silva   +1 more
wiley   +1 more source

Potencial pesqueiro de Macrobrachium amazonicum na Amazonia central (Ilha do Careiro) : variaçao da abundancai e do comprimento [PDF]

open access: yes, 1993
Abundance and body size variations of the prawn #Macrobranchium amazonicum$ (Heller, 1862) have been studied in a Central Amazonian floodplain lake, on Careiro Island.
Moreira, L.C., Odinetz Collart, Olga
core  

Comparing remote and hand‐held video observation methods for quantifying a cleaning mutualism

open access: yesJournal of Fish Biology, Volume 106, Issue 3, Page 775-783, March 2025.
Abstract Field studies of cleaning mutualisms use a variety of methods to quantify behavioral dynamics. Studies in marine systems typically utilize data recorded by human observers on scuba or snorkel or via remote underwater video. The effects of these different methods on cleaner–client behaviors have not been rigorously assessed.
Daniel M. Cryan   +2 more
wiley   +1 more source

The first record of Exopalaemon styliferus (Crustacean, Decapods, Palaemonidae) from Iran

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2010
An unidentified species of Palaemonidae was observed in the downstream of Bahmanshir River in 2008. We caught 472 specimens of the fauna and used FAO species identification sheets for species identification. Some of the specimens were also transferred to
P. Zare; A. Ghasemi; E. Sarafraz
doaj  

The atyid prawns of Dominica [PDF]

open access: yes, 1977
The family of primitive prawns, Atyidae, are freshwater animals with a circumtropical distribution, but additionally some have penetrated into temperate regions.
Fryer, G.
core  

Presence of Palaemon macrodactylus in a Europe estuary: evidence for a successful invasion of the Gironde (SW France) [PDF]

open access: yes, 2011
Palaemon macrodactylus, an exotic shrimp native to the northwest Pacific Ocean, has been recorded in many estuaries along the Atlantic coast of Europe since the late 1990’s.
Bergé, J.   +6 more
core   +2 more sources

From subsidies to stressors: Positively skewed ecological gradients alter biological responses to nutrients in streams

open access: yesEcological Applications, Volume 35, Issue 1, January 2025.
Abstract Subsidy–stress gradients offer a useful framework for understanding ecological responses to perturbation and may help inform ecological metrics in highly modified systems. Historic, region‐wide shifts from bottomland hardwood forest to row crop agriculture can cause positively skewed impact gradients in alluvial plain ecoregions, resulting in ...
Stephen E. DeVilbiss   +2 more
wiley   +1 more source

Aplikasi Dna Barcode Pada Penentuan Spesies Udang Air Tawar Yang Berasal Dari Provinsi Jambi [PDF]

open access: yes, 2016
Provinsi Jambi memiliki hutan hujan tropis dataran rendah yang mengalami deforestasi tercepat di daerah Asia. Efek dari Perubahan alih fungsi hutan ke habitat pertanian akan mengubah kondisi ekosistem.
Farajallah, A. (Achmad)   +2 more
core   +1 more source

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