First record of Heptranchias perlo (Bonnaterre 1788) in Guatemala’s Caribbean Sea

First record of Heptranchias perlo (Bonnaterre 1788) in Guatemala’s Caribbean Sea

Background: This report represents the first record of the sharpnose sevengill shark Heptranchias perlo in Guatemala’s Caribbean Sea. Methods: Two H. perlo specimens were captured by artisanal fishermen of the coastal community, El Quetzalito. All specimens were captured with a trammel net, in waters of 200 m depth Results: Both specimens were female with total lengths of 280 and 370 mm. Detail...

Research Article: Length-based fishery status of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) in the northern waters of the Oman Sea

In the present study, population characteristics of Thunnus albacares were evaluated by sampling at five fish landing sites in the northern Oman Sea including Beris, Ramin, Pozm, Konarak and Jask from March 2017 to March 2018. The biometric analysis was performed on more than twenty-six thousand fish. Population dynamic parameters were calculated including infinite length (L∞=171 cm), growth co...

the effect of the record infancy in crimilly acts of guilties (in karaj city)

چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...

First record of Ebria tripartita (Schumann) Lemmermann, 1899 from south of the Caspian Sea

Ebria tripartita (Schumann) Lemmermann, 1899, a non-photosynthetic flagellate was identified from the southern coast of the Caspian Sea in December 2012. Water temperature at the sampling time was 10 ºC.  The abundance of total phytoplankton cells was 3 × 106 Cells.l-1, while E. tripartita with 2 × 10 3 Cells. l-1 included 0.75% of phytoplankton community. Water quality parameters were recorded...

The first record of southern ocean sunfish, Mola ramsayi from Northern Oman Sea, Iran