مطالعه برخی ویژگی‌های ریخت‌سنجی، تولیدمثلی و تغذیه‌ای قزل‌آلای خال قرمز (Salmo trutta) در رودخانه طالقان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشیار،گروه شیلات، دانشکده منابع طبیعی، دانشگاه تهران،کرج، ایران

2 دانشجوی دکتری بوم شناسی آبزیان شیلاتی،گروه شیلات، دانشکده منابع طبیعی دانشگاه تهران،کرج، ایران

3 اداره کل حفاظت محیط زیست استان البرز، کرج، ایران

چکیده

در طی سال 1397 به‌منظور بررسی برخی شاخص‌های زیست‌شناختی از جمله بررسی رابطه طول-وزن، شاخص وضعیت، هماوری، تعیین سن و ویژگی‌های ریخت‌شناختی گونه قزل‌آلای خال‌قرمز (Salmo trutta) تعداد 38 نمونه در سه ایستگاه بالادست شامل نهرهای گراپ، گته‌ده و ده‌در (سرشاخه رودخانه طالقان) صید شد. تعدادی از نمونه‌ها پس از ثثبیت در فرمالین بافری به آزمایشگاه منتقل شدند و با استفاده از کولیس دیجیتال تعداد 29 صفت ریخت‌سنجی و هفت صفت شمارشی اندازه­گیری و سنجش شدند و با توجه به اهمیت حفاظتی این گونه با ارزش، ریخت‌سنجی تعدادی از نمونه‌ها نیز ازروی تصاویر با استفاده از نرم‌افزار ImageJ انجام شد. نتایج نشان داد که نمونه‌های صید شده در 4 گروه سنی 1، 2، 3 و 4 ساله بودند. بیشترین فراوانی را گروه سنی یک ساله با 7/73 درصد و کمترین فراوانی را گروه 4 ساله با 6/2 درصد داشت. نسبت جنسی نیز (نر) 8/1 :(ماده) 1 به دست آمد. براساس نتایج، رابطه بین طول-وزن به صورت 39/2X0004/0 =Y به‌دست آمد. شاخص فاکتور وضعیت نیز در دامنه 71/0 تا 26/1 بود. دامنه هم‌آوری مطلق جمعیت طالقان 379-168 به‌دست آمد. در بررسی عادات غذایی این گونه نیز طیف وسیعی از ماکروبنتوزها مشاهده شد که نشان‌دهنده وابستگی غذایی به غذاهای در دسترس می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Study of some morphometric, reproductive and feeding traits, of Salmo trutta in Taleghan River

نویسندگان [English]

  • Soheil Eagderi 1
  • Atta Mouludi-Saleh 2
  • Mohammad Mahmoudi 3
1 Associate Professor, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
2 Ph.D. student, Department of Fisheries, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
3 Department of Environmental Protection Alborz Province.
چکیده [English]

In 2018, in order to study a few biological characteristics, including length-weight relationship, condition factor, fecundity, age frequency, and morphological characteristics of Salmo trutta, a total of 38 specimens were collected in three upstream stations, Grap, Gathedeh, and Dehdar (tributaries of the Taleghan River). Some of the collected samples were transferred to the laboratory after fixation in the buffer 10% formalin and 29 morphometric and seven meristic traits were measured and counted, respectively. In addition, based on the conservation importance of the studied species, a number of morphometric traits of the few specimens were analyzed using the acquired high-quality pictures by ImageJ software. The results showed that the samples have 4 age groups, including 1, 2, 3, and 4 years old. The highest and lowest frequency was one-year-old group with 73.7% and 4 with 2.6%, respectively. The sex ratio was 1.8 (male): 1 (female). Based on the results, the length-weight relationship was obtained as Y = 0.0004x2.39. The condition factor was in the range of 0.71 to 1.26, as well as absolute fecundity of the Taleghan population was 168-379. In investigating the feeding habits, a wide range of macrobenthos was observed, indicating its dependence on available food items.

کلیدواژه‌ها [English]

  • Salmo trutta
  • Taleghan
  • Morphometric
  • Condition factor
  • Biology

مراجع

Abbasi, K., Mouludi-Saleh, A., Eagderi, S., 2021. Morphological diversity of the Caspian Asp, Leuciscus aspius, in the South Caspian Sea basin (Osteichthyes: Cyprinidae). Zoology in the Middle East 67(1), 25-31.
Afraei, M., Fazli, H., Moslemi, M., 2000. Some Biological Characteristics of the Brown Trout Salmo trutta fario (Linnaeus, 1758) in Tonekabon River. Iranian Scientific Fisheries Journal 9(3), 21-34. (in Persian).
Akbarzadeh, A., Khara, H., Nezami, S., Sattari, M., Mousavi, S., Javadi, S., Azarakhsh, M., Shamekhi, R., Taleshi, H., 2012. Comparison of Morphological Variations and Some Biological Features of Brown Trout Salmo trutta fario Resident in Chesli and Khorma Rivers in Guilan. Journal of Marine Science Technology 10(4) 34-46. (in Persian).
Basharat, A., 1984. Biotechnology of artificial reproduction of Salmo trutta fario. University of Tehran publication; 90p. (in Persian).
Biswas, S. P., 1993. Manual of methods in fish biology. South Asian Publishers.
Cadrin, S.X., 2000. Advances in morphometric identification of fishery stocks. Reviews in Fish biology and Fisheries 10: 91-112.
Eagderi, S., Mouludi-Saleh, A., Cicek, E., 2020. Length-weight relationship of ten species of Leuciscinae sub-family (Cyprinidae) from Iranian inland waters. International Aquatic Research 12(2), 133-136.
Elliot, N.G., Haskard, K., Koslow, J.A., 1995. Morphometric analysis of the orange roughy (Hoplostethus atlanticus) population off the continental slope of southern Australia. Journal of Fish Biology 46(2): 202-220.
Esmaeilim, H.R., Sayyadzadeh, G., Eagderi, S., Abbasi, K., 2018. Checklist of freshwater fishes of Iran. FishTaxa 3(3), 1-95.
Fazli, H., Azari, H., Moghim, M., Kor, D., Nabavi Jelodar, E., Taleshian, H., 2012. Growth and mortality of brown trout, Salmo trutta fario in Lar dam, Iran. Iranian Scientific Fisheries Journal 11(1), 47-37. (in Persian).
Froese, R., 2006. Cube law, condition factor and weight–length relationships: history, meta-analysis and recommendations. Journal of Applied Ichthyology 22, 241-253.
Guill, J.M., Hood, C.S., Heins, D.C., 2003. Body shape variation within and among three
species of darters (Perciformes: Percidae). Ecology of Freshwater Fish 12, 134-140
Hadipour Nicktarash, P., Ghodousi, H., Ebrahimi, K., 2019. Simulation and Evaluation of Seasonal Variations of Water Quality in Taleghan River Using a Mathematical Model. Journal of Soil and Water Sciences 22 (4), 399-410. (in Persian).
Hashemzadeh, S.I., Farahmand, H., Abdoli, A., Bernatchez, L., Karami, M., 2012.  Identification of Brown Trout, Salmo trutta, of Mardgh River in Liqvan River (Iran), Using Microsatellite Loci. Journal of Fisheries 65(3), 327-337. (in Persian).
Jafari-Patcan, A., Eagderi, S., Mouludi-Saleh, A., 2018. Length-weight relationship for four fish species from the Oman Sea, Iran. International Journal of Aquatic Biology 6(5), 294-295.
Khosravani asl, Q., Hashemzade Sagharloo, I., Pirali, E., Abdoli. A., 2016. The phylogenetic position of Brown trout (Salmo trutta L. 1758) in the Jajrud River using D-Loop sequence. Nova Biolica Reperta 3(1), 39-47. (in Persian).
Mouludi-Saleh, A., Eagderi, S., Abbasi, K., Pourgholami, A., 2020. Comparison of some biological parameters of Leuciscus aspius (Linnaeus, 1758) from south-western part of the Caspian Sea. Journal of Fisheries 73(1), 113-122. (in Persian).
Mouludi-Saleh, A., Eagderi, S., Abbasi, K., Salavatian, S.M., 2021. Length–weight relationship and condition factor of ten cyprinid fish species from the Caspian Sea, Urmia Lake and Persian Gulf basins of Iran. Journal of Fisheries 9(1), 91401-91401.
Quliyev, Z., 2005. Azerbaaijan of Salmo trutta fario (Morphometry, ecology and conservation), Azerbaijan Academy of Sciences Publications. (Trans. Adeli Y. 2009). Shafagh Publications; 146 p. (In Persian).
Salavatian, M., Abbasi, K., Azari-Takami, Gh., Moradi, M., Bakhtyari, S., 2015. Investigation of Grows Condition of Salmo trutta fario in Lar Reservoir Lake. Journal of Animal Biology 7(2), 35-48. (in Persian).
Salavatian, M., Gholiev, Z., Aliev, A., Abbasi, K., 2011a. Feeding behavior of brown trout, Salmo trutta fario, during spawning season in four rivers of Lar National Park, Iran. Caspian Journal of Environment Sciences 9(2), 223-233.
Salavatian, M., Quliyev, Z., Abbasi, K., Mustafayev, N., Rouhi, J.D., Moghaddam, A.P., Biria, H.A., 2011b. Study of morphological changes in Brown trout (Salmo trutta fario) from Lar reservoir in Iran. Annals of Biological Research 2(6), 145-154.
Salavatian, S.; Abbasi, K.; Pourgholami, A., Abdollahpour Biriya, H., 2017. Investigation on diet preference of Salmo trutta fario in Shafarud River (Guilan Province). Breeding and Aquaculture Sciences Journal 4(10), 69-78. (In Persian).
Shorygin, A.A., 1952. Feeding and nutritional inter-relations of fish in the Caspian Sea. Pishchepromizdat. Moscow. 268 p.
Simon, K.D., Mazlan, A.G., 2001. Length-Weight and Length-Length Relationships of Archer and Puffer fish species. The Open Fish Science Journal 1(-), 19-22.
Webb, P.W., 1984. Form and function in fish swimming. Scientific American 251, 72-75.

فایل ها

هم رسانی

ارجاع به این مقاله

آمار