برخی روابط مورفومتریک در ماهی سنگسر مخطط (1775 Pomadasys stridens (Forsskål در آب های ساحلی خلیج فارس (محدوده استان هرمزگان)

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه شیلات، دانشکده علوم و فنون دریایی، دانشگاه هرمزگان، بندرعباس، ایران

چکیده

ماهی سنگسر مخطط (Pomadasys stridens)  یکی از گونه ­های فراوان در اکوسیستم خلیج فارس و زنجیره غذایی دریا می­ باشد. در این مطالعه روابط طول- طول و طول-­وزن ماهی سنگسر مخطط از داده ­های یک دوره 8 ماهه در مقطع طولی بین دی ماه 1398 تا اردیبهشت ماه 1400 در محدوده آب­ های استان هرمزگان مورد بررسی قرار گرفت. در طی این مدت روابط داده­ های مورفومتریک 366 ماهی سنگسر مخطط محاسبه شدند. حداقل و حداکثر طول چنگالی و وزن کل به ترتیب 43 میلی­ متر، 198 میلی­ متر، 1/35 گرم و 139/27 گرم بود. روابط رگرسیون خطی بین شاخصه های ­طولی (طول کل، استاندارد و چنگالی) این ماهی نشان داد که همبستگی قطعی مثبتی بین این شاخصه­ ها وجود داشت. مقدار R2 برای روابط طول کل-­طول چنگالی، طول کل-­طول استاندارد و طول چنگالی-طول استاندارد به ترتیب 0/9978، 0/9956، 0/9968 برآورده شد. تجزیه و تحلیل مقدار b به دست آمده از رابطه طول- وزن نشان داد که این گونه دارای رشد ناهمگون منفی است. مقادیر a ،b و R2 برای رابطه طول- ­وزن به ترتیب 0/00002، 2/9761، 0/9943 برآورد شدند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Some morphometric relationships of Striped piggy fish, Pomadasys stridens (Forsskål, 1775) in coastal waters of Persian Gulf (Hormozgan province)

نویسندگان [English]

  • Esmaeil Farjadzadeh
  • Mohsen Safaie
  • Leila Abdoli
Department of Fisheries, Faculty of Marine science and Technology, Hormozgan University, Bandar Abbas, Iran
چکیده [English]

Striped piggy fish (Pomadasys stridens) is one of numerous species in the Persian Gulf Ecosystem and Marine Food Chain. This study was carried out to determine Length-Length and Length-Weight Relationships of striped piggy fish. Sampling was performed for 8 months from January 2020 to May 2021 in the waters of Hormozgan province.  During this period some morphometric relationships of 366 specimens were measured The minimum and maximum Fork length and Total weight were recorded at 43 mm, 198 mm, 1.35 g and  139.27 g respectively. Linear regression relationships between lengths (Total length, Standard Length and Fork Length) for this fish showed that there were positive correlations between these characteristics. R2   parameter for Total Length-Fork Length, Total Length-Standard Length and Fork Length-Standard Length Relationships are 0.9978, 0.9956 and 0.9968 respectively. The analysis of the b value for length-weight relationships indicated that the growth pattern in this species is negative allometric. The parameters a, b, and R2 for length-weight relationships were 0.00002, 2.9761 and 0.9943 respectively.

کلیدواژه‌ها [English]

  • Striped piggy
  • Length-Length Relationships
  • Length-Weight Relationships
  • Persian Gulf

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فصلنامه محیط زیست جانوری
دوره 14، شماره 1
شماره بهار
اردیبهشت 1401
صفحه 191-196

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