Results 11 to 20 of about 1,631 (226)

Monitoring of noble, signal and narrow-clawed crayfish using environmental DNA from freshwater samples. [PDF]

PLoS ONE, 2017
For several hundred years freshwater crayfish (Crustacea-Decapoda-Astacidea) have played an important ecological, cultural and culinary role in Scandinavia.
Sune Agersnap, William Brenner Larsen, Steen Wilhelm Knudsen, David Strand, Philip Francis Thomsen, Martin Hesselsøe, Peter Bondgaard Mortensen, Trude Vrålstad, Peter Rask Møller   +8 more
doaj   +13 more sources

New codend designs to improve the size selectivity of fyke net for narrow-clawed crayfish (Pontastacus leptodactylus) [PDF]

Aquatic Living Resources, 2022
The narrow-clawed crayfish (Pontastacus leptodactylus) is one of the most ecologically and economically important freshwater species in Turkey. However, the harvest of this species has declined from 7937 t in 1984 to 696 t in 2019. One of primary reasons
Cilbiz Mehmet, Aydın Celalettin, Herrmann Bent   +2 more
doaj   +12 more sources

Effects of Dietary Pectin and Lactobacillus salivarius ATCC 11741 on Growth Performance, Immunocompetence, Gut Microbiota, Antioxidant Capacity, and Disease Resistance in Narrow-Clawed Crayfish, Postantacus leptodactylus [PDF]

Aquaculture Nutrition, 2022
The present study was conducted to clarify the effects of Lactobacillus salivarius (LS) ATCC 11741 and pectin (PE) on growth performance, digestive enzymes activity, gut microbiota composition, immune parameters, antioxidant defense as well as disease ...
Samyah Darwish Saddig Jastaniah, Hafsan Hafsan, Cheng-jui Tseng, Yasir Salam Karim, Mohammed Ubaid Hamza, Noora M. Hameed, Sura Hasan Al-Zubaidi, Saif Sabbar Kemil Almotlaq, Ghulam Yasin, A. Heri Iswanto, Mahnaz Dadras, Mohammad Mansouri Chorehi   +11 more
doaj   +4 more sources

Narrow-clawed crayfish in Finland: Aphanomyces astaci resistance and genetic relationship to other selected European and Asian populations [PDF]

Knowledge and Management of Aquatic Ecosystems, 2020
The narrow-clawed crayfish (Pontastacus leptodactylus) is an alien species in Finland with only a few populations reported from the southeastern region during the last century.
Jussila Japo, Maguire Ivana, Kokko Harri, Tiitinen Vesa, Makkonen Jenny   +4 more
doaj   +8 more sources

Modeling and predicting meat yield and growth performance using morphological features of narrow-clawed crayfish with machine learning techniques [PDF]

Scientific Reports
In recent studies, artificial intelligence and machine learning methods give higher accuracy than other prediction methods in large data sets with complex structures.
Yasemin Gültepe, Selçuk Berber, Nejdet Gültepe   +2 more
doaj   +6 more sources

Recovering Turkish narrow clawed crayfish (Astacus leptodactylus) populations carry Aphanomyces astaci [PDF]

Knowledge and Management of Aquatic Ecosystems, 2012
Crayfish stocks collapsed in Turkey in mid 1980’s due to crayfish plague epidemics, with up to 25% survival in some cases. The collapsed stocks have then recovered slowly and commercial crayfish fishery was reinitiated gradually ...
Kokko H., Koistinen L., Harlioğlu M.M., Makkonen J., Aydın H., Jussila J.   +5 more
doaj   +4 more sources

Population molecular analysis among the narrow-clawed crayfish (Astacus leptodactylus) based on microsatellite DNA loci [PDF]

Iranian Journal of Animal Biosystematics, 2018
The genetic variation of narrow-clawed crayfish (Astacus leptodactylus, Eschscholtz, 1823) from Caspian Sea including two sites (Astara and Kiashahr), Aras region, Anzali lagoon and three rivers (Chafrood, Masuleh, and Siah Darvishan) was evaluated and ...
Majidreza Khoshkholgh, Sajad Nazari
doaj   +3 more sources

Physiological Responses and Histopathological Changes in Narrow-Clawed Crayfish (Pontastacus leptodactylus) Under Acute Thermal Stress [PDF]

Animals
To investigate thermal tolerance, physiological responses, and molecular mechanisms of the narrow-clawed crayfish (Pontastacus leptodactylus) under acute thermal stress, the P.
Xia Zhu, Bin Li, Yuzhen Liu, Shujian Chen, Yangfang Ye, Ronghua Li, Weiwei Song, Changkao Mu, Chunlin Wang, Ce Shi   +9 more
doaj   +3 more sources

First record of Astathelohania contejeani (Henneguy, 1892) in the narrow-clawed crayfish Pontastacus leptodactylus (Eschscholtz, 1823) from Belarus [PDF]

Oceanological and Hydrobiological Studies
Porcelain disease, caused by the parasite Astathelohania contejeani, is a fatal disease for freshwater crayfish. Previously published data provide information on the occurrence of A. contejeani in various crayfish species. However, its prevalence in host
Śliwińska Karolina, Skuratovich Elena, Alekhnovich Anatoly   +2 more
doaj   +4 more sources

Biological peculiarities of the cultivation of narrow-clawed crayfish astacus leptodactylus Eschscholtz, 1823 (crustacea, decapoda)

Agrology, 2020
Crayfish Astacus leptodactylus Eschscholtz, 1823 is one of the largest commercial invertebrate internal waters of Ukraine. At the present time producers are unable to meet the needs of the people in this food. The largest number of crayfish (over 90%) is
M. O. Panchishnyy, O. V. Shcherbak, A. V. Bazaeva, R. O. Novitskyi   +3 more
doaj   +4 more sources