issue 4 publication date 2021-12

• Investigation of fishing changes and growth pattern of Acipenser persicus Borodin, 1897 in a ten-year period (2011-2020) in fishing grounds of Golestan province
• Study on growth properties of Carassius gibelio (Bloch, 1782) in Golestan and Voshmgir dam lake of Golestan Province- Northern Iran
• Feeding habits of Pickhandle barracuda; Sphyraena jello Cuvier, 1829; in Chabahar coastal waters (Oman Sea)
• Study of diversity and morphometric differentiation of of Garra rufa (Heckel, 1843) populations in Fars province
• The intensity of electrophoretic bands containing egg non-vitellogenin derived proteins in relationship with embryo-larvae viability in common dentex (Dentex dentex)  a preliminary evaluation
• Studying morphological differences of sagittal otolith using geometric morphometric in two species of gobiidae Bathygobius meggitti (Hora and Mukeriji, 1936) and Istigobius ornatus (Ruppell, 183) in Makran coast, Oman Sea
• Evaluating economic performance of bony fishes companies in Gilan province
• Feeding habits of Grey sharpnose shark Rhizoprionodon oligolinx Springer, 1964 in marine waters of eastern Hormozgan province