The Surinam anchovy (Anchovia surinamensis) is a small fish of commercial and ecological interest in the Amazon basin. To understand reproductive population dynamics this species, 2019 2020, experimental fisheries were carried out during periods flood low water Cujubim Lake Porto Velho (Rondônia, Brazil). This study aimed to analyze seasonal pattern (flood water) for period region, which result...

some biological characteristics and population dynamic of platycephalus indicus were studied during one year from may 2011 to march 2012 in the coastal waters of bandar abbas. a total of 1106 samples were collected. also, each month 35 fish was choosen and transferred to the laboratory for evaluation of spawning season.the ages of 279 specimens were determined by sectioned otoliths. the ages of...

owing to reduction of sturgeon stocks in various water bodies, artificial propagation has become significantly important for stock restoration and appropriate broodstock selection is vital in this process. selection of suitable broodstocks may influence the quality and quantity of obtained eggs and larva. the present study aimed to examine correlation between some morphometric and reproductive ...

  The population parameters and spawning season of the Spangeld emperor (Lethrinus nebulosus) were studied in coastal waters of Hormouzgan province. The monthly calculated mean values of gonadosomatic index (GSI) of females were indicate to increase from February, reach the highest in March and decline in June. The spawning season peak of L. nebulosus occurred in March. The Von Bertalanffy grow...

Reproduction and spawning patterns of the Yellowtail scad (Atule mate) were studied in the Persian Gulf and Oman Sea (Hormozgan coastal waters) from December 2016 to November 2017. A total of 447 fish were collected from Bandar Lengeh, Qeshm Island, Bandar Abbas, and Bandar Jask landing sites. Minimum and maximum fork lengths of this species were 10 and 33 cm, with average 20.63±1.73 cm. The to...

The blue swimmer crab (BSC, Portunus armatus) is an economically and culturally important species distributed throughout the coastal waters of Indo-Pacific region. Reproduction BSC poorly understood in south-eastern Australia, a region that experiencing substantial tropicalisation from global warming. We examined gonadal development, egg–mass relationships, influence temperature on development ...

The present study investigated the reproductive biology of Stolephorus commersonnii and Amblygaster sirm at two landing sites in Tanga on northern coast Tanzania. Fish samples were collected a monthly basis from ringnets operated by artisanal fishers nearby coastal waters. Spawning seasons determined using gonadosomatic index (GSI) gonadal maturity stages. size first was 57.7 mm 66.2 total leng...

Reproductive biology of three important small indigenous fish species mola (Amblypharyngodon mola), punti (Puntius sophore) and chela (Chela cachius) was studied for 12 months from January to December, 1999 in the Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh. Gonadosomatic index (GSI) and ova diameter were analysed to determine their reproductive cycle. Thr...

  The population parameters and spawning season of the Spangeld emperor (Lethrinus nebulosus) were studied in coastal waters of Hormouzgan province. The monthly calculated mean values of gonadosomatic index (GSI) of females were indicate to increase from February, reach the highest in March and decline in June. The spawning season peak of L. nebulosus occurred in March. The Von Bertalanffy grow...