Results 61 to 70 of about 33,382 (305)

Effects of the pyrethroid insecticide gamma-cyhalothrin on aquatic invertebrates in laboratory and outdoor microcosm tests

open access: yes, 2009
The sensitivity of a range of freshwater lentic invertebrates to gamma-cyhalothrin (GCH), a single enantiomer of the synthetic pyrethroid lambda-cyhalothrin, was assessed in single species laboratory tests and an outdoor multi-species ecosystem test. The
Wijngaarden, R.P.A., van   +2 more
core   +1 more source

Aquatic Macrophytes Determine the Spatial Distribution of Invertebrates in a Shallow Reservoir

open access: yes, 2021
Aquatic macrophytes determine the physical structure of many microhabitats in water and strongly influence the distribution of various aquatic animals.
Ji-Hyeok Im   +5 more
core   +1 more source

Different shape but the same topographical complexity—The lingual gross anatomy of the Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

open access: yesThe Anatomical Record, EarlyView.
Abstract Despite the distinctly different shapes of their tongues, the tongue gross anatomy of Saimaa ringed seal closely resembled that of Baltic ringed seal. There were no differences in the extrinsic and intrinsic tongue muscles or their associated vascularization and innervation between Saimaa and Baltic ringed seals.
Juha Laakkonen, Heini Nihtilä
wiley   +1 more source

Distribution and Economic Importance of Aquatic Macro Invertebrates: A Review

open access: yes
Aquatic macro-invertebrates are basic constituent of the aquatic food chain (serve as food for fish and other organisms), they aid in natural flow of energy as well as bio indicators of water quality.
P. D., Rabo,
core   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira   +2 more
wiley   +1 more source

Taxonomic structure and spatial distribution of aquatic invertebrates from temporary wetlands after a severe drought event in southern Brazil [PDF]

open access: yesActa Limnologica Brasiliensia
Aim The aim of this study was to evaluate the composition and spatial distribution of aquatic invertebrates in temporary wetlands following a severe drought event in southern Brazil.
Bárbara Oleinski   +2 more
doaj   +2 more sources

New fossil unveils the dentary anatomy of the rare lepidosauromorph Cargninia enigmatica from the Upper Triassic of Southern Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Nowadays, Lepidosauria is a diverse group represented by squamates and the rhynchocephalian tuatara. However, their origins date back to the end of the Permian Period, when the stem lineages Lepidosauromorpha and Archosauromorpha diverged. Within the lepidosauromorph stem lineage, a few species have been described with unstable phylogenetic ...
Lísie Vitória Soares Damke   +4 more
wiley   +1 more source

Influence of nontrophic interactions between benthic invertebrates on river sediment processes: a microcosm study [PDF]

open access: yes, 2004
The main objective of this study was to measure the impact of benthic invertebrate diversity on river sediment processes. We quantified the effects of interactions between three taxa (asellids, chironomid larvae, and tubificid worms).
Mermillod-Blondin, Florian   +3 more
core   +1 more source

Interpreting a Legacy Fossil Assemblage Excavated From Waribruk (New Guinea II Cave), GunaiKurnai Aboriginal Country, Snowy River National Park, Southeastern Australia

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT In this paper we report on faunal remains recovered from a legacy archaeological excavation undertaken in the rockshelter entrance of Waribruk (New Guinea II Cave), a GunaiKurnai site located on the west bank of the Snowy River, East Gippsland, southeastern Australia.
Matthew C. McDowell   +7 more
wiley   +1 more source

Responses to river inundation pressures control prey selection of riparian beetles.

open access: yesPLoS ONE, 2013
BackgroundRiparian habitats are subjected to frequent inundation (flooding) and are characterised by food webs that exhibit variability in aquatic/terrestrial subsidies across the ecotone.
Matt J O'Callaghan   +4 more
doaj   +1 more source

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