Results 81 to 90 of about 6,164 (251)

LENGTH-WEIGHT FREQUENCY AND SEX RATIO OF CRAYFISH, ASTACUS LEPTODACTYLUS, IN ARAS RESERVOIR, WEST AZERBAIJAN, IRAN

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
The length-weight frequency and sex ratio of crayfish (Astacus leptodactylus) in Aras Reservoir, was studied seasonally from spring 2008 to winter 2009. The total mean length and weight for the crayfish were 106.43±7.94mm and 35.8±10.86g, respectively. A
A. Mohsen por azari; A. Asem; A. Mottalebi; F. Mohebi; S. Shiri
doaj  

Получение сеголетка длиннопалого рака в садках на сбросной подогретой воде теплоэлектростанции [PDF]

open access: yes, 2013
Длиннопалый рак (Astacus leptodactylus Esch.) является важным ресурсным видом водоемов нашей страны. Традиционно эти десятиногие ракообразные ценятся на внутреннем и особенно на мировом рынке как превосходный деликатесный продукт питания, а также ...
Алехнович, Анатолий Васильевич   +2 more
core  

Morphology of the narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823) in the north-west Croatia [PDF]

open access: yes, 2017
Astacus leptodactylus jedna je od četiri nativne vrste porodice Astacidae u Hrvatskoj, ujedno je i ključna vrsta u slatkovodnim ekosustavima. Unatoč važnosti vrste A. leptodactylus, općenito nedostaju podaci o toj vrsti na europskom nivou.
Preininger, Tamara
core   +1 more source

Sviluppo di un bioindicatore naturale per il monitoraggio della qualità delle acque [PDF]

open access: yes, 2013
2011/2012La concentrazione del glucosio emolinfatico è regolata nei Crostacei dal crustacean Hyperglycemic Hormone (cHH), un neuropeptide prodotto e rilasciato in circolo nel complesso organo X-ghiandola del seno, localizzato nei peduncoli oculari.
Mosco, Alessandro
core   +1 more source

Exploring the Coexposure Effects of Pyrogallol and Microplastic on the Red Swamp Crayfish Procambarus clarkii

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Investigating the impact of two or more toxic chemicals on aquatic organisms is one of the main objectives of toxicological research. Microplastics (MPs) are identified as a carrier or vector for other pollutants. Therefore, the current study investigated the effects of both pyrogallol (PG) and MPs, individually and in combination, on freshwater ...
Rashad E. M. Said   +4 more
wiley   +1 more source

Different aspects of reproduction strategies in crayfish: A review

open access: yesKnowledge and Management of Aquatic Ecosystems, 2016
Study of the reproductive strategy of crayfish species is of great importance in the current astacological world. Crayfish are among the largest freshwater invertebrates, and as keystone species, they are able to regulate the ...
Yazicioglu B., Reynolds J., Kozák P.
doaj   +1 more source

Causative agent of the crayfish plague: Aphanomyces astaci Schikora, 1906 [PDF]

open access: yes, 2018
Riječni rakovi važan su element slatkovodnih ekosustava. U posljednjih 200 godina došlo je do drastičnog smanjenja brojnosti autohtonih vrsta riječnih rakova na području Europe.
Petrović, Ana
core  

The Red Gold of Aquaculture: The Dual Role of Astaxanthin in Aquatic Nutrition and Human Health

open access: yesAquaculture Research, Volume 2025, Issue 1, 2025.
Astaxanthin, a potent keto‐carotenoid, has emerged as a critical bioactive compound in aquaculture and human health. This review synthesizes current knowledge on astaxanthin’s multifunctional roles, spanning pigmentation enhancement, growth promotion, stress resilience, and disease resistance in farmed aquatic species.
Bakhtiari Moghadam Behnam   +4 more
wiley   +1 more source

Kovada Gölü'nde Yaşayan İstakozlarda (Astacus leptodactylus) Bazı Ağır Metallerin Birikiminin İncelenmesi

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2010
05.04.2005-23.02.2006 tarihleri arasında yapılan bu çalışmada; Kovada Gölü'nde yaşayan istakoz (Astacus leptodactylus)'ların kas, karaciğer ve karapaks dokularında bazı ağır metal birikiminin incelenmesi amaçlanmıştır. Çalışmada; 32 adet tatlısu istakozu
İsmail Kır, Yusuf Tuncay
doaj  

Population genetic structure analysis of the freshwater crayfish (Astacus leptodactylus) in different region inferred from mtDNA control region sequencing [PDF]

open access: yes, 2016
In this study population genetic structure of freshwater crayfish (Astacus leptodactylus) in Iran was investigated using direct sequencing of mtDNA control region. A total of 132 samples were collected from the different locations.
Khoshkholgh, Majidreza, Nazari, Sajad
core  

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