Results 81 to 90 of about 282,421 (242)

Molecular Characterisation of Endangered White‐Clawed Crayfish Populations in Southern Switzerland

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT This study investigates the phylogeography of the endangered European White‐Clawed Crayfish (WCC) Austropotamobius pallipes species complex in the main tributaries of the Po River basin in southern Switzerland and northern Italy, a diversity hotspot for this species.
Sebastian Prati   +3 more
wiley   +1 more source

Burrowing behaviour of signal crayfish, Pacifastacus leniusculus (Dana), in the River Great Ouse, England [PDF]

open access: yes, 1994
Observations were made on crayfish burrows in five locations on the Great Ouse River. The burrow densities and the relative abundance of crayfish were observed.
Guan, Rui-Zhang
core  

Effects of zinc oxide nanoparticles and zinc ions on intestine histopathology of freshwater crayfish (Astacus leptodactylus) [PDF]

open access: yesبوم‌شناسی آبزیان, 2016
The purpose of this study was to evaluate the effects of zinc oxide nanoparticles and ions on intestinal tissue histopathology of freshwater crayfish (Astacus leptodactylus) under laboratory conditions.
Borhan Mansouri   +3 more
doaj  

Recent changes in distribution pattern of freshwater crayfish in Croatia − threats and perspectives

open access: yes, 2018
Analysis of Croatian freshwater crayfish populations, aiming to gather new distributional data and complement previous surveys (2005–2011), was performed during 2014–2016, within the frame of Natura 2000 Integration Project.
I. Maguire   +5 more
semanticscholar   +1 more source

Trophic role of marbled crayfish in a lentic freshwater ecosystem

open access: yesAquatic Invasions, 2019
Species’ introductions may cause severe adverse effects on freshwater ecosystems and their biota. The marbled crayfish, Procambarus virginalis Lyko, 2017, is an invasive parthenogenetically reproducing crayfish with rapid reproduction, maturation and ...
B. Lipták   +6 more
semanticscholar   +1 more source

Multiscale Threats Shape the Occurrence Dynamics of a Threatened Aquatic Salamander and Reveal a Possible Extinction Debt

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
The Neuse River Waterdog (Necturus lewisi) is a threatened large aquatic salamander endemic to North Carolina, USA. Site‐specific habitat quality, the proportion of developed landcover in the watershed, and annual drought intensity operate in concert to drive the species' occurrence dynamics.
Eric W. Teitsworth   +4 more
wiley   +1 more source

Penambahan Suplemen Madu Dalam Pakan Guna Meningkatkan Pertumbuhan Dan Kelulushidupan Benih Lobster Air Tawar Red Claw (Cherax Quadricarinatus) [the Addition Supplement of Honey in Feed to Increasing Growth and Survival Rate of Freshwater Crayfish Seed Red Claw (Cherax Quadricarinatus) ] [PDF]

open access: yes, 2010
The demand for domestic or worldwide market to freshwater crayfish is high. Wherefor, needed some cultivation to reach that demand. The growth period of freshwater crayfish is slowly, then to increase growth needed addition some supplement in the feed ...
Aprilia, F. T. (Fachriza)   +3 more
core  

Early detection of an emerging invasive species: eDNA monitoring of a parthenogenetic crayfish in freshwater systems

open access: yesManagement of Biological Invasions, 2019
Procambarus virginalis, also known as the Marmorkrebs is a highly invasive crayfish species characterized by parthenogenetic reproduction. As conservation management plans rely on the accuracy of the presence and distribution information of invasive ...
Q. Mauvisseau   +4 more
semanticscholar   +1 more source

An Urban Taonga: The Distribution and Abundance of Tuna in Urban Streams Across Tāmaki Makaurau, Aotearoa‐New Zealand

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 1, March 2026.
Freshwater eels of the Anguilla genus are experiencing global decline, largely driven by human activity. In Aotearoa‐New Zealand, tuna (both shortfin and longfin eels) are similarly affected, with habitat fragmentation and modification key drivers of their decline.
Nicole A. Whitelock   +2 more
wiley   +1 more source

Aquatic macroinvertebrate responses to native and non-native predators [PDF]

open access: yes, 2014
Non-native species can profoundly affect native ecosystems through trophic interactions with native species. Native prey may respond differently to non-native versus native predators since they lack prior experience.
Christmas, M   +4 more
core   +4 more sources

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