Results 81 to 90 of about 7,934 (242)

Carmel River Lagoon Enhancement Project: Water Quality and Aquatic Wildlife Monitoring, 2005-6 [PDF]

open access: yes, 2006
In summer and fall 2004, the California Department of Parks and Recreation (DPR) initiated the Carmel River Lagoon Enhancement Project. The project involved excavation of a dry remnant Arm of the lagoon and adjacent disused farmland to form a significant
Casagrande, Joel   +3 more
core  

Habitat‐Specific Response of Macroinvertebrate Drift to Flow Pulses: Implications for Hydropeaking Management

open access: yesFreshwater Biology, Volume 70, Issue 10, October 2025.
ABSTRACT Flow pulses play a vital role in maintaining the ecological functioning of natural river systems. However, anthropogenic flow regulation, particularly from hydropower operations, can introduce rapid and unnatural pulses that negatively impact aquatic biota.
Nathalie Friese   +4 more
wiley   +1 more source

First records of four species of the genus Americabaetis (Ephemeroptera: Baetidae) for Argentina Primer registro de cuatro especies del género Americabaetis (Ephemeroptera: Baetidae) para Argentina

open access: yesRevista de la Sociedad Entomológica Argentina, 2012
The family Baetidae is the most diverse family into the Order Ephemeroptera and it has an almost cosmopolitan distribution. The genus Americabaetis Kluge was described in 1992 and actually it has 19 known species with a clearly Neotropical distribution ...
Sofía Bardavid, Carolina Nieto
doaj  

Cloeodes incus (Waltz & McCafferty) (Ephemeroptera: Baetidae): primer registro de Argentina, características hidrológicas y ambientales [PDF]

open access: yes, 2013
Cloeodes incus se cita por primera vez para la Argentina. Se recolectaron ninfas mediante red Surber y red de arrastre en los Ríos Pircas y Ajedrez (Jujuy: Rinconada) en altitudes superiores a los 4000 msnm.
de Paul, Marcela Alejandra   +2 more
core  

Benthic and interstitial habitats of a lentic spring as invertebrate refuges during supra-seasonal drought [PDF]

open access: yes, 2013
Instream refuges are places where invertebrates persist during disturbances due to reduced adverse impacts. During droughts, low flows may be accompanied by elevated temperatures, and potential refuges including subsurface sediments and spring-fed ...
Stubbington, R, Wood, PJ
core   +1 more source

Where Do You Fly From? Assessing Aerial Dispersal in Temporary Rivers Using Stable Isotopes

open access: yesFreshwater Biology, Volume 70, Issue 10, October 2025.
ABSTRACT Dispersal is a crucial ecological process that facilitates gene flow and species exchange within ecosystems. In temporary rivers (TRs), dispersal is a key driver of community assembly because it determines the ability of the organisms to adapt to seasonal drying and maintain stable populations.
José María Fernández‐Calero   +6 more
wiley   +1 more source

TROPHIC AND REPRODUCTIVE ECOLOGY OF A NEOTROPICAL CHARACID FISH HEMIBRYCON BREVISPINI (TELEOSTEI: CHARACIFORMES)

open access: yesCaldasia, 2014
Hemibrycon brevispini is a Neotropical characid fish endemic in La Venada Creek, a headwater tributary of the Quindío River of Colombia ( Cauca River drainage).
CRISTIAN ROMÁN-P.   +2 more
doaj   +1 more source

Genetic diversity and species richness patterns in Baetidae (Ephemeroptera) in the Montseny Mountain range (North-East Iberian Peninsula) [PDF]

open access: yes, 2015
This study aimed to describe patterns of diversity of Baetidae (Ephemeroptera) at the ommunity and population levels within the Montseny Mountain range (North-East Iberian Peninsula).
Morante, María   +4 more
core  

Effects of pulsed discharges from a hydropower station on summer diel feeding activity and diet of brown trout (Salmo trutta Linnaeus, 1758) in an Iberian stream. [PDF]

open access: yes, 2016
The influence of pulsed discharges associated with hydroelectric power generation (i.e. hydropeaking) on feeding activity and diet composition of adult brown trout (Salmo trutta) was studied during the summer by comparing two sites: upstream (control ...
Aparicio, E.   +3 more
core   +3 more sources

L'Alimentation des jeunes Saumons (Salmo salar L.) dans une rivière du Pays-Basque, la Nivelle. [PDF]

open access: yesMunibe Ciencias Naturales, 1995
El estudio conlleva el análisis estomacal de 136 juveniles de   salmón atlántico (Salmo Salar L.), de tallas que varían entre 70   y 141 mm. Los peces han sido capturados a comienzos de otoño, en   dos tramos someros del río Nivelle (País Vasco).
VIGNES, J.C.
doaj  

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