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Showing 2 results for Sattari

Mohammad Forouhar Vajargah, Masoud Sattari, Javid Imanpour Namin, Mehdi Bibak,
Volume 2, Issue 2 (6-2020)
Abstract

Fish stock assessment in the Caspian Sea requires employing some growth indicators such as length-weight relationship (LWR). Size determination in fish is more biologically relevant than age, because several ecological and physiological indicators are more size-dependent compared to age-dependent. This study aims to examine the length-weight relationship and condition factor of Rutilus kutum (Kamensky) from the southern Caspian Sea. 218 fish samples were caught using a gill net from Anzali, Astara, Kiashahr, Sari and Torkaman Port from September 2018 to February 2019. Negative allometric growth patterns were observed in Sari and Torkaman Port and positive allometric growth patterns were found in Anzali, Kiashahr and Astara stations. The fish caught from Anzali displayed the maximum condition factor. LWRs are not continuous over the year and LWR indices may vary significantly due to biological, food availability, temporal and sampling factors, and also by fish health and sex. Relative weights in fisheries studies can be used for comparing condition across different populations and species. Investigations carried out indicate that growth of R. kutum in recent years has decreased.

Majid Tavakoli, Somayeh Sattari, Asadollah Hosseini-Chegeni,
Volume 2, Issue 3 (9-2020)
Abstract

Zaprionus indianus is a very successful invasive species with a high dispersion capacity. In this paper we present the first host record of the African fig fly pest for western Iran. We use molecular data to support the identification of this species. In total, 250 larval specimens were collected. After immature rearing and adult emergence under laboratory conditions, the specimens were identified as Z. indianus based on morphological characters. Then, the morphological identification was confirmed by BLAST analysis of the COI nucleotide sequence, which showed 97%–100% identity to COI sequences of Z. indianus, submitted from different parts of world. This study can provide some insights into the identification, ecology and host preference of Z. indianus as a new invasive and potentially major pomegranate pest in western Iran.


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