Results 61 to 70 of about 6,565 (202)

First record of the genus Periclimenaeus borradaile, 1815 (decapoda : palaemoniidae : pontoniinae) in the northeastern Atlantic, with the description of a new species, Periclimenaeus aurae [PDF]

open access: yes, 2008
A new species of Periclimenaeus is described from Madeira Island, in the northeastern Atlantic Ocean. It is closest to P. pearsei Holthuis, 1951 from the western Atlantic, but it can be distinguished by the shape of rostrum, the size of exopod in ...
Abele   +32 more
core   +1 more source

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

Registro de Macrobrachium olfersii en un arroyo temporal de San Carlos, Guaymas, Sonora, México

open access: yesRevista Mexicana de Biodiversidad, 2016
El 3 de septiembre del 2009 arribó a la región de Guaymas, Sonora, la tormenta tropical Jimena, que permaneció estacionaria durante 36 h continuas, arrojando 720 mm de precipitación rebasando el promedio anual estatal.
Mauricia Guadalupe Pérez-Tello   +3 more
doaj   +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

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

Population and reproductive features of the freshwater shrimp Macrobrachium jelskii (Miers, 1877) from São Paulo State, Brazilb - doi: 10.4025/actascibiolsci.v35i3.15815

open access: yesActa Scientiarum: Biological Sciences, 2013
The aim of this study was to describe the population structure and reproduction of Macrobrachium jelskii from a stream in the central region of São Paulo State.
Emerson Contreira Mossolin   +4 more
doaj   +1 more source

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

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  

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

How Marine Megabenthos Fauna Responds to River Discharge and Artificial Flood in Large River Estuary

open access: yesEcology and Evolution, Volume 15, Issue 1, January 2025.
The artificial flood reshaped the geographical distribution of megabenthic fauna in the estuarine area in a short time, mainly as a result of the dramatic changes in seawater salinity and nutrients caused by flow pulse. An eco‐friendly discharge management of the Yellow River is needed to weaken the impact. ABSTRACT Estuaries are ecologically sensitive
Debin Sun   +6 more
wiley   +1 more source

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