Volume & Issue: Volume 30, Issue 1, May and June 2021 
Density and biomass different species of Amphipoda in the southern of Caspian Sea (Goharbaran region)

Pages 25-36

Mohammad ali Afraei Bandpei; Gholamreza Salarvand; Hasan Nasrolahzadehsaravi; Matin Shakoori; Mahdi Naderi jelodar; Abolghasem Roohi; Gholamreza Daryanabard; Fariba Vahedi; Iraj Rajabi


Environmental qualitative assessment of Karaj River sediments (Alborz Province)

Pages 37-52

Seyed ghasem Ghorbanzadeh zaferani; Farhad Hoseini tayefeh; Seyedbaharih Azimi; Mehdi Gandomkar; Jalil Badamfirooz


Histomorphology and comparison of some digestive enzymes of proper intestine of, Arabibarbus grypus in both warm and cold seasons

Pages 107-118

Rahim Abdi; Ameneh Moradkhani; Mohammadali Salarialiabadi; Seyedmohammadbagher Nabavi; Zahra Basir


Assessment of the effect of mixed replacement of animal and plant protein-based mixes on fish growth indices, body composition and somatic index of Huso Huso

Pages 119-134

Mir Hamed Sayed Hassani; Mirmasood Sajadi; Bahram Falahatkar; Ayoob Yoosefi; Ali Hallajiyan; Ali Hosseinpoorzolti; Mahmood Mohseni; Reza Gorbani


Effect of dietary nucleotide supplement (Ascogen) on hematological indices and body composition in Acipenser baerii

Pages 149-158

Seyed Mohammad sadegh Hashemi; Felora Mohammadi zadeh; Amir hoshang Bahri; Mahmood Hafezieh; Reza Ghorbani vaghei


Study of histopathology and changes of some hematology indicators of indigenous and French Rainbow trout fish due to Aeromonas hydrophila

Pages 159-174

Mohammad Sheikh asadi; Seyed jalil Zoriyehzahra; Laleh Yazdanpanah; Amir Sattari; Maryam Mirbakhsh


Evaluation of artemia stocks in meighan salt Wetland of Arak

Pages 175-185

Mahmoud Hafezieh; Ali Nekoui fard; Fereydon Mohebbi; Masood Seydgar; Davood Cheraghi; Mohammad Khezri; Hassan Akbari