World Aquaculture Safari 2025

June 24 - 27, 2025

Kampala, Uganda

STUDY OF THE ZOOTECHNICAL PERFORMANCE OF CRAYFISH IN INTENSIVE REARING

FODIL Rafik1, ZEROUALI Said1, CHABET DIS Chalabia2, MESLEM Nabila1

1National School of Marine Sciences and Coastal Management (ENSSMAL), Dely Ibrahim University Campus, Bois des Cars, 16320, Algiers, Algeria.

2National Center for Research and Development of Fisheries and Aquaculture (CNRDPA), Port Road, Bousmail, 42415, Tipaza, Algeria.

 



Faced with the stagnation of wild fish stocks, modern aquaculture is increasingly turning to intensive farming systems featuring high-value species. Procambarus clarkii, commonly known as the red swamp crayfish or Louisiana crayfish, has emerged as a promising candidate due to its resilience, rapid growth, and growing economic significance—particularly in China and Louisiana.

This study aimed to assess the zootechnical performance of Procambarus clarkii in intensive rearing conditions, focusing on key parameters such as growth, survival rate, moulting, and water quality. The experimental design involved 102 individuals divided into two cohorts, reared in controlled aquariums and semi-extensive pond systems. Weekly monitoring of physicochemical parameters (temperature, pH, oxygen, salinity) was conducted to maintain optimal rearing conditions, while morphometric data revealed progressive growth aligned with developmental stages.

Preliminary findings indicate that Procambarus clarkii holds significant potential for intensive aquaculture, provided that cannibalism, reproduction, and water quality are tightly managed. These insights support the sustainable expansion of crayfish farming—especially in resource-limited areas—while emphasizing the need for strict ecological oversight due to the invasive nature of the species.

Keywords: Procambarus clarkii; Intensive aquaculture; Zootechnical performance; Invasive species; Sustainable aquaculture.