Reza Davoodi

Persian Gulf University | PGU · Department of Fisheries Science

Sixty-day research was conducted to investigate the effects of dietary butyric acid glyceride (BAG) on the performance of Acanthopagrus latus fingerlings (8.59 ± 0.33 g). Experimental feeds were prepared by supplementing a commercial feed (crude protein: 50%, crude lipid: 15%) with graded levels of BAG including 0 (control), 0.25% (BAG0.25), 0.5% (...

Litopenaeus vannamei postlarvae were exposed to 0, 6, 13, and 19 mg/L total ammonia nitrogen (TAN) treatments. After 45 days, shrimp weight and length were lowest under TAN concentrations of 13 and 19 mg/L (P ≤ 0.05). Maximum weight gain was observed in control and 6 mg/L treatments. Mortality was highest (80.55 ± 4.80%) under 19 mg/L reared in 35...

We conducted this study to determine the chronic effects of Azadirachtin on growth parameters, survival and gill morphology of grass carp [Ctenopharyngodon idella (C. idella)] with an average weight of 11.09±2.3 g. We equally distributed 120 fish between three treatments and a control group, with three replicates each. Sublethal concentrations of p...

The aim of this study was to assess the chronic effects of a bio-pesticide (NeemAzal) on some biochemical parameters of grass carp (Ctenopharyng-odon idella) under laboratory conditions. At first, 96 h LC 50 of the pesticide was determined using probit analysis software and was found to be 0.73 mg L À1 of the active ingredient (azadirach-tin) of th...

Although there is no much information about shrimp industrial trawler, the aim of this study was to estimate the catch composition and Catch per Unit of Area (CPUA) of Penaeid shrimps from the bottom trawls of Bushehr coastal waters. Sampling was carried out by stratified sampling producer in the three strata: <10 m, 10-20 m and 20-30 m. The catch...

Catch data of Penaeus semisulcatus were collected for three years (2009-2011) during the period of June to August to estimate the effect of depth variation on length frequency and catch rate (Kg h-1) of the species. No difference was observed between the shallow and deeper catch rate (ANOVA test, P > 0.05). However, the size composition of green ti...

The length-weight relationships (LWR) and relative condition factor were calculated for five marine fish species collected by shrimp trawls from Iranian waters of the Persian Gulf. Sampling was carried out with bottom trawl net (with 40 and 50 mm mesh size (stretched length) in the cod-end and panel) during June to August 2011. Trawling took place...

This study was conducted to determine length-weight and length-length relationships, relative condition factor (Krel) and Fulton's condition factor (K) for five species including Scardinius erythrophtalmus, Carassius auratus gibelio, Cyprinus carpio, Tinca tinca and Hemiculter leucisculus belonging to Cyprinidae family. Fish sampling was carried ou...

The aim of this study was to record the weigh-length relationship (WLR) parameters for Clupeonella cultriventris caspia of Iranian coastal waters of Caspian Sea. Samples were taken during fishing surveys using conical lift nets during the summer and autumn of 2010. Total length (TL in cm) and body weight (BW in g) were measured. The lowest and high...

The aim of this study was to record the weigh-length relationship (WLR) parameters for Clupeonella cultriventris caspia of Iranian coastal waters of Caspian Sea. Samples were taken during fishing surveys using conical lift nets during the summer and autumn of 2010. Total length (TL in cm) and body weight (BW in g) were measured. The lowest and high...

The aim of this study was to record the length-weight relationship parameters and condition factors for some commercially important fish of Bushehr coastal waters of Persian Gulf. The length-weight relationships were calculated for five species caught during fishing surveys using different types of fishing gears (trawls, pots and gill net with diff...

This study reports the Length-weights relationships, and relative weights of 5 demersal fish species of Persian Gulf. Specimens were caught during fishing surveys using different types of fishing gears between April 2008 to December 2010. A total of 653 individuals were sampled. The parameter b ranged between 2.626 (Acanthopagrus latus (Houttuyn, 1...