Results 51 to 60 of about 4,221 (245)

OCCURRENCE OF NATIVE AND INTRODUCED CRAYFISH IN NORTHEASTERN GERMANY AND NORTHWESTERN POLAND.

Knowledge and Management of Aquatic Ecosystems, 2001
On the basis of monitoring undertaken in 300 lakes since 1994, the recent stocking situation for freshwater crayfish in northeastern Germany (Uckermark) and northwestern Poland (Szczecin area) is described. The two native species Astacus astacus (L.) and
SCHULZ R., SMIETANA P.
doaj   +1 more source

Toward Scientific Clarity in the Evolutionary Puzzle of Austropotamobius Crayfish

Journal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim Illuminating the evolutionary history of Austropotamobius crayfish by uncovering patterns of biodiversity and biogeographical processes, thereby providing a foundation for accurate taxonomy and targeted conservation strategies. Location Europe. Time Period Miocene to present. Major Taxa Studied The crayfish genus Austropotamobius.
Lucian Pârvulescu, David Livadariu, Alexandru E. Mizeranschi, Marinela A. Chețan, Andreea M. Lamoly, Mihaela C. Ion, Ana‐Maria Neacă, Márta S. Mészáros, Ana Molnar, Ecaterina Mocioacă, Alina Satmari, Lucian Fusu, Cristian Panaiotu, Miguel Clavero, Dan V. Palcu Rolier   +14 more
wiley   +1 more source

Research on the Application of Green Ecological Additive Combinations During the Breeding Period of Redclaw Crayfish

Aquaculture, Fish and Fisheries, Volume 5, Issue 5, October 2025.
ABSTRACT The three key processes in the breeding of redclaw crayfish are nutrient enhancement by parents, catching and hatching of egg‐holding crayfish and maintaining a feed supply for juveniles. An appropriate combination of green ecological additives is beneficial for improving the production efficiencies of the three key processes.
Cheng Shun, Chi Mei‐Li, Jiang Wen‐Ping, Zheng Jian‐Bo, Liu Shi‐Li, Zhu Chao, Hang Xiao‐Ying, Peng Miao, Li Fei   +8 more
wiley   +1 more source

DETERMINATION OF HEAVY METALS CONTENT IN ASTACUS LEPTODACTYLUS CASPICUS IN ANZALI LAGOON

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2003
With attention to different human activities around Anzali lagoon and entrance different pollutants containing heavy metals into this aquatic ecosystem and alterante absorption and accumulation of heavy metals in shell and muscle of Astacus leptodactylus
maryam paydar1; M. Sharif Fazeli2; A. Riahi Bakhtiari2
doaj  

Genetic diversity of noble crayfish in Finland based on ITS1 microsatellite-like repeat variation: implications to the conservation and management

Knowledge and Management of Aquatic Ecosystems
During the last two centuries, native noble crayfish (Astacus astacus) has been introduced and re-introduced into many waters in Finland, to widen the area of distribution, and to re-establish the collapsed populations.
Karjalainen Anna, Halmekytö Maria, Mononen Jaakko, Kortet Raine, Kokko Harri   +4 more
doaj   +1 more source

Levels of accumulation of heavy metals and activity of radionuclides in narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823) of the Kamianske and Zaporizhzhia (Dnipro) reservoirs [PDF]

, 2023
P. Korzhenevska, О. М. Маренков, I. I. Borovyk, V. Sondak   +3 more
openalex   +1 more source

CRAYFISH OCCURRENCE IN RELATION TO LAND-USE PROPERTIES: IMPLEMENTATION OF A GEOGRAPHIC INFORMATION SYSTEM (GIS)

Knowledge and Management of Aquatic Ecosystems, 2002
On the basis of inventory data collected since 1994, the recent stocking situation for freshwater crayfish in three 10 by 10 km study sites in northeastern Germany (Uckermark) and northwestern Poland (Szczecin area, Koszalin area) is described.
SCHULZ H. K., SMIETANA P., SCHULZ R.
doaj   +1 more source

Prioritising Non‐Native Crayfish Species for Management in the Rhine‐Main Observatory Using the Dispersal‐Origin‐Status‐Impact (DOSI) Scheme

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 7, July 2025.
ABSTRACT Managing non‐native species remains a critical challenge in biodiversity conservation, highlighting the need for effective prioritisation frameworks that integrate ecological, economic and policy considerations. Given that biological invasions are a population‐level rather than a species‐level phenomenon, more nuanced assessment schemes are ...
Phillip J. Haubrock, Ali Serhan Tarkan, Dagmara Błońska, Alexandru Gora, Lucian Pârvulescu, Antonín Kouba, Ismael Soto   +6 more
wiley   +1 more source

CRAYFISH MANAGEMENT FOR SWISS WATERS

Knowledge and Management of Aquatic Ecosystems, 2006
Seven species of crayfish are present in Swiss waters: three native ones (Astacus astacus, Austropotamobius pallipes, Austropotamobius torrentium) and four exotic ones (Astacus leptodactylus, Orconectes limosus, Pacifastacus leniusculus, Procambarus ...
HEFTI D., STUCKI P.
doaj   +1 more source

Better Alone Than in Bad Company: Trophic Ecology of Co‐Occurring Invasive and Native Crayfish

Ecology and Evolution, Volume 15, Issue 5, May 2025.
This study investigated and compared trophic interactions between invasive signal crayfish and native white‐clawed crayfish at sites of co‐occurrence and in allopatry. The presence of crayfish plague, body condition, and trophic niche traits were explored as possible factors that make invasive signal crayfish a strong competitor, enhancing its ...
Daniela Ghia, Gianluca Fea, Annagiulia Murtas, Martina Ventimiglia, Tiziano Bo, Andrea Basso, Tobia Pretto, Roberto Sacchi, Fabio Ercoli   +8 more
wiley   +1 more source