Results 61 to 70 of about 6,517 (202)

Growth, molt and survival of Palaemonetes argentinus (Decapoda, Caridea) under different light-dark conditions

open access: yesIheringia: Série Zoologia, 2003
Growth, survival and molting rate in Palaemonetes argentinus Nobili, 1901 were compared under different light-dark conditions. During 80 days, 150 immatures of both sexes (initial mean weight 0.09±0.002g), from Los Padres lagoon, Mar del Plata, Argentina,
Ana Cristina Díaz   +3 more
doaj   +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

Natural diet and feeding habits of a freshwater prawn (Macrobrachium carcinus: Crustacea, Decapoda) in the estuary of the Amazon River. [PDF]

open access: yes, 2019
Macrobrachium carcinus is a Brazilian native prawn with recognized potential for use in aquaculture activities. However, there is little information about the natural diet and feeding habits of this species.
GARCIA, J. da S.   +2 more
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

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

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

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

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  

Spatial and Ontogenetic Patterns in the Trophic Ecology of Two Predatory Fishes in a Large River

open access: yesEcology of Freshwater Fish, Volume 34, Issue 1, January 2025.
ABSTRACT Fishes use a variety of physical and biological resources that shift ontogenetically, seasonally and spatially. Quantifying what resources such as prey are required for persistence can improve understanding of ecological needs of fishes and riverine macrosystem functioning.
Shaley A. Valentine   +1 more
wiley   +1 more source

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