Color variation in signal crayfish Pacifastacus leniusculus. [PDF]
Curr Zool, 2021 Abstract External coloration in animals depends on the interaction of several different factors including the genetics and epigenetics processes that underlie the color expression, the mechanisms of color perception, and the general mechanisms controlling color evolution and function.
Sacchi R +4 more
europepmc +5 more sources
Crayfish plague affects juvenile survival and adult behaviour of invasive signal crayfish. [PDF]
Parasitology, 2020 AbstractThe spread of invasive, non-native species is a key threat to biodiversity. Parasites can play a significant role by influencing their invasive host's survival or behaviour, which can subsequently alter invasion dynamics. The North American signal crayfish (Pacifastacus leniusculus) is a known carrier ofAphanomyces astaci, an oomycete pathogen ...
Thomas JR +7 more
europepmc +7 more sources
Virome Analysis of Signal Crayfish (Pacifastacus leniusculus) along Its Invasion Range Reveals Diverse and Divergent RNA Viruses [PDF]
Viruses, 2021 Crayfish are a keystone species of freshwater ecosystems and a successful invasive species. However, their pathogens, including viruses, remain understudied.
Katarina Bačnik +4 more
doaj +2 more sources
Dispersal and coexistence of two non-native crayfish species (Pacifastacus leniusculus and Procambarus clarkii) in NE Portugal over a 10-year period [PDF]
Knowledge and Management of Aquatic Ecosystems, 2011 NE Portugal is one of the most isolated and low populated regions of Western Europe. Recently, two American crayfish species reached this area: signal crayfish Pacifastacus leniusculus coming from Spain and red swamp crayfish Procambarus clarkii in its ...
Bernardo J. M. +3 more
doaj +5 more sources
Daily activity rhythms, chronotypes, and risk-taking behavior in the signal crayfish. [PDF]
Curr Zool, 2022 Abstract Consistent inter-individual differences in daily activity rhythms (i.e., chronotypes) can have ecological consequences in determining access to food resources and avoidance of predators. The most common measure to characterize chronotypes in animals as well as humans is the onset of activity (i.e., early or late chronotypes).
Sbragaglia V, Breithaupt T.
europepmc +6 more sources
The signal crayfish is vulnerable to both the As and the PsI-isolates of the crayfish plague [PDF]
Knowledge and Management of Aquatic Ecosystems, 2014 The carrier status and possible elevated tolerance of the signal crayfish (Pacifastacus leniusculus) against the crayfish plague disease agent (Aphanomyces astaci) has been speculated for several decades.
Aydin H. +5 more
doaj +3 more sources
Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry [PDF]
NeoBiotaStudying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem.
Fabio Ercoli +5 more
doaj +4 more sources
Diet and trophic niche of the invasive signal crayfish in the first invaded Italian stream ecosystem [PDF]
Scientific Reports, 2021 The occurrence of the signal crayfish Pacifastacus leniusculus in the Valla Stream was the first established population of this invasive species recorded in an Italian stream ecosystem.
Fabio Ercoli +5 more
doaj +2 more sources
PLoS ONE, 2013 Aphanomyces astaci, the crayfish plague pathogen, first appeared in Europe in the mid-19(th) century and is still responsible for mass mortalities of native European crayfish.
Lenka Filipová +4 more
doaj +4 more sources
THE EFFECT OF THE LARGE-SCALE INTRODUCTION OF SIGNAL CRAYFISH ON THE SPREAD OF CRAYFISH PLAGUE IN SWEDEN [PDF]
Knowledge and Management of Aquatic Ecosystems, 2006 Since 1907, coinciding with the arrival of the crayfish plague, the noble crayfish (Astacus astacus) has steadily declined in Sweden. To substitute the noble crayfish fishery lost, mainly due to the plague, and since the species is highly susceptible to ...
BOHMAN P., NORDWALL F., EDSMAN L.
doaj +2 more sources