Results 51 to 60 of about 523,094 (204)

The amount of environmental DNA increases with freshwater crayfish density and over time

Environmental DNA, 2022
Over the last years, the analysis of environmental DNA (eDNA) has become an important approach to investigate species communities. Due to its non‐invasive nature and high sensitivity, this method is excellently suited to monitor the occurrence of ...
Daniela Sint, Bernhard Kolp, Oskar Rennstam Rubbmark, Leopold Füreder, Michael Traugott   +4 more
doaj   +1 more source

Effect of Different Baits on Catch Per Unit Effort (CPUE) for Catching Narrow-Clawed Crayfish (Pontastacus leptodactylus) with Fyke-Nets and Traps in Çanakkale Atikhisar Reservoir

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, 2022
This study was aimed to determine the effects of different bait types on the efficiency of fyke-nets and traps in catching narrow-clawed crayfish (Pontastacus leptodactylus (Eschscholtz, 1823)). The study was carried out in Atikhisar reservoir, Çanakkale,
Tekin DEMİRKIRAN, Uğur ÖZEKİNCİ
doaj   +1 more source

Reproduction of the narrow-clawed crayfish, Pontastacus leptodactylus () (Decapoda: Astacidea: Astacidae), in western Turkey

Journal of Crustacean Biology
Monthly collections using fyke nets between July 2020 and June 2021 (2,606 females, 3,864 males) in Atikhisar Reservoir, Çanakkale, Turkey allowed us to investigate the reproduction of the narrow-clawed crayfish (Pontastacus leptodactylus ).
Selçuk Berber, Semih Kale, D. Acarlı, A. Demirci   +3 more
semanticscholar   +1 more source

Antioxidant radical scavenging capacity and total carotenoid content of narrow-clawed crayfish (Pontastacus leptodactylus, Eschscholtz, 1823) in Atikhisar Reservoir (Çanakkale, Türkiye)

Oceanological and Hydrobiological Studies, 2023
In this study, antioxidant radical scavenging capacity and total carotenoid content in the meat and shells of Pontastacus leptodactylus were investigated.
S. Acarlı, B. Kızılkaya, Pervin Vural, Selçuk Berber, Semih Kale, D. Acarlı   +5 more
semanticscholar   +1 more source

Spatial ecology of white-clawed crayfish Austropotamobius pallipes and signal crayfish Pacifastacus leniusculus in upland rivers, Northern England [PDF]

, 2004
The American signal crayfish Pacifastacus lernusculus, an invasive species widely introduced throughout Europe, is a major threat to native European crayfish species and is causing increasing concern because of its wide impact on aquatic ecosystems. This
Bubb, Damian H, Bubb, Damian H.
core  

Distribution and dispersal of two invasive crayfish species in the Drava River basin, Croatia [PDF]

Knowledge and Management of Aquatic Ecosystems, 2009
The aim of this work is to explore the current distribution and dispersal rates of two nonindigenous crayfish species (NICS) recorded in Croatia: the signal crayfish (Pacifastacus leniusculus) and spiny-cheek crayfish(Orconectes limosus).
S. Hudina, M. Faller, A. Lucić, G. Klobučar, I. Maguire   +4 more
doaj  

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

Knowledge and Management of Aquatic Ecosystems, 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.
Maguire Ivana, Klobučar Göran, Žganec Krešimir, Jelić Mišel, Lucić Andreja, Hudina Sandra   +5 more
doaj   +1 more source

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

Interactive effects between burrowing crayfish and flow conditions increase riverbank erosion: A flume experiment

Earth Surface Processes and Landforms, Volume 51, Issue 5, May 2026.
Biological and geomorphic effects have been treated independently in fluvial geomorphology. Flume experiments with burrowing crayfish show that interactions between these drivers do more geomorphic work than the sum of their maximum independent parts combined, meaning total biogeomorphic effects to rivers are likely underestimated.
Catherine H. Sanders, Stephen P. Rice, Paul J. Wood   +2 more
wiley   +1 more source

Effects of methyl farnesoate injection on spermatozoa number and reproductive indices in the narrow-clawed crayfish Pontastacus leptodactylus

Nauplius, 2022
Abstract In this study, the effect of methyl farnesoate (MF) injection on haemolymph MF levels, spermatozoa production and the reproductive indices of gonadosomatic index (GSI), testicular index (TI) and vasosomatic index (VSI) were investigated in males of Pontastacus leptodactylus (Escholtz, 1823). Sixty male P. leptodactylus were used for the study.
Mehmet Bal, Ayşe Gül Harlıoğlu
openaire   +5 more sources