- همه نشریات
- علوم آب و خاک
- علوم اقتصاد و ترویج کشاورزی
- علوم جنگل, مرتع و آبخیزداری
- علوم دامی و شیلات
- علوم زراعی و باغی
- علوم گیاهپزشکی
- علوم مهندسی و مکانیزاسیون کشاورزی
- مجلات ترویجی
- نشریات انجمن ها
- نشریات با زبان انگلیسی
- نشریات با زبان فارسی
- نشریات دانشگاه آزاد اسلامی
- نشریات علمی پژوهشی
- نشریات علمی پژوهشی سازمان تحقیقات, آموزش و ترویچ
- نشریات علمی ترویجی
آمار
| تعداد نشریات | 273 |
| تعداد نشریات سازمان | 72 |
| تعداد شماره‌ها | 1,622 |
| تعداد مقالات | 18,630 |
| تعداد مشاهده مقاله | 10,314,558 |
| تعداد دریافت فایل اصل مقاله | 7,513,969 |
Life history pattern and feeding habits of Gobio bulgaricus (Drensky, 1926) (Pisces: Gobionidae) in an endorheic stream (Istranca Stream, Turkey) | ||
| Iranian Journal of Fisheries Sciences | ||
| مقالات آماده انتشار، اصلاح شده برای چاپ ، انتشار آنلاین از تاریخ 20 فروردین 1398 اصل مقاله (553.15 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijfs.2019.118805 | ||
| نویسندگان | ||
Gülşah Saç  ؛ Müfit Özuluğ
| ||
| Istanbul University, Department of Biology | ||
| چکیده | ||
| The Aegean gudgeon Gobio bulgaricus Drensky, 1926 is a cyprinid species restricted to the western parts (Thrace) of Turkey. The aim of the present study is investigating key parameters such as age, growth, reproduction and feeding habits of G. bulgaricus in the Istranca Stream to determine biological characteristics of the species. During monthly samplings from March 2012 to June 2013, G. bulgaricus specimens were collected from the endorheic Istranca Stream, which is draining to the Lake Durusu in İstanbul. The results showed that the lifespan of the species was 5 years. The length–weight relationships of G. bulgaricus indicated positive allometric growth and the relationship was lnW=-3.976+3.080lnSL for females, lnW=-4.008+3.088lnSL for males and lnW=-4.049+3.118lnSL for all individuals. The mean size at first sexual maturity (Lm) was 4.03 cm SL for females and 3.94 cm SL for males. Absolute fecundity ranged from 355 to 5556 eggs with mean of 1179±152 eggs. Prey analyses of digestive tract content indicated that G. bulgaricus was largely omnivorous (more precisely insectivorous) feeding mainly on aquatic insects and a small amount of plant and animal material. Diptera larvae (IRI%=96.49) were the dominant prey of G. bulgaricus in terms of index of relative importance. It is considered that the present results will increase our knowledge of the life-history traits and feeding of G. bulgaricus. | ||
| کلیدواژه‌ها | ||
| Age؛ Diet؛ Growth؛ Reproduction؛ Istranca Stream؛ Turkey | ||
|
آمار تعداد مشاهده مقاله: 1 تعداد دریافت فایل اصل مقاله: 2 |
||
