Abstract In Masbate, senatorial scallop Chlamys senatoria is one of the five commercially important species present in Asid Gulf, but its basic biology poorly understood Philippines. To provide biological information for future conservation and management, reproductive rhythm relation to lunar phase was investigated from October 2016 March 2017. Scallops were collected daily fishers’ catches me...

Effects of dietary inclusion Tribulus terrestris and 17 ?-methyltestosterone on sex reversal, growth performance, feed utilization, survival rates red tilapia were evaluated in this study. Red fry with an average weight 0.02 ±0.003 g length 0.6 ±0.012 cm subjected to six different reversal treatments. The experiment lasted for 112 days. Two T. extract treatments (1and 2 g/kg diet); three hormon...

This study’s objective was to explore some of the annual Prussian carp’s (Carassius gibelio) biological characteristics (sex ratio, length–weight and gonado somatic index - GSI) in Kopački Rit Nature Park Croatia. The carp is an invasive fish species originated from Asia, which became widely distributed throughout Europe believed be responsible for a decline number indigenous fish, invertebrate...

In order to estimate the fecundity, reproductive character and feeding habit of Liza parsia, 75 gravid females were collected from Pasur River different shrimp farms Khulna district. The equation for total length-body weight standard relationship species found be BW = 9.769 x TL - 101.4 (R² 0.883) 9.921 SL 77.19 0.865) respectively. condition factor ranged 10.12-15.05 having mean value 12.35+1....

Palinustus waguensis Kubo, 1963, is the deep-sea Japanese blunthorn lobster belonging to Family Palinuridae. It a species that has been rarely reported, living in rocky habitats on deep-reef slopes at depth of 100–250 m. An estimated catch 100 kg P. consisting 113 males, 54 females, and 23 berried lobsters were collected during first fortnight January 2019 from multi-day shrimp trawls operating...

Aquaculture activities cannot be separated from obstacles that can lead to failure of aquaculture, including the presence microplastics. Microplastic polystyrene (styrofoam) is a type plastic commonly found in aquatic organisms (35%). Microplastics fish cause hormonal disturbances and high vacuolation gonads which apoptosis gonadal cells. This study aimed determine effect microplastics exposure...

Effects of short-term administration of corticosterone and cortisol on plasma levels of thyroid hormones, gonado-somatic index and testicular histology have been reported in catfish, Clarias gariepinus during different phases of its breeding cycle. Corticosterone administration had no significant effect on plasma levels of T4, T3 and T3/T4 ratio, irrespective of doses and phases of breeding cyc...

 The paper focuses on some of the biological characteristics of golden grey mullet, Liza aurata in Iranian waters of the Caspian Sea. Samples of commercial catch of mullet obtained by means of beach seine fishing cooperatives along the Iranian coasts of Caspian Sea (2007-2008) as monthly interval. Samples subjected to biometric measurement to specify their biological characteristics. The male/f...