Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Harlioglu, Muzaffer Mustafa(3)
- Aksu, Onder(2)
- Duran, Tuba Cakmak(2)
- Gündogdu, Hande(2)
- Harlioglu, Ayse Gul(2)
- Köprücü, Kenan(2)
- Yonar, Serpil Mise(2)
- Çakmak, Mehmet Nuri(2)
- Özcan, Sinan(2)
- Aksu, O.(1)
- Barim-Oz, O.(1)
- Gür, Seyfettin(1)
- Harlioglu, M. M.(1)
- Karimpour, M.(1)
- Kutluyer, Filiz(1)
- Kutluyer, Fitiz(1)
- Sahin, H.(1)
Yayınlar
- MakaleYayıncıda açık erişim2016Scopus SJRQ3Oxidative stress and some biochemical parameters during starvation and refeeding in Astacus leptodactylus (Esch., 1823)
Barim-Oz, O.; Sahin, H.
This study was conducted to determine the effect of starvation (78 days) and refeeding (33 days) on oxidative stress (malondialdehyde (MDA)), antioxidants (superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GSH-Px)), arginase (AR) and nitric oxide (NO) in the hepatopancreas, muscle and gills tissues of freshwater crayfish (Astacus leptodactylus). Crayfish were maintained at three experimental groups: control (fed), starved (not fed) crayfish for 78 days and refeeding crayfish for 33 days after 78 days starvation. The biochemical analysis in the tissues were measured at 3, 18, 33, 48, 63 and 78 days of starvation and feeding and at 3, 18 and 33 days of refeeding. In the all periods, the MDA levels were significantly higher in tissues of starved crayfish than the control ones. Significant changes in the MDA levels were also observed amongst starvation times. In the tissues of starved crayfish was significantly higher SOD, CAT, GR and AR activities when compared to control crayfish. The GSH-Px and NO activity showed increases and decreases in different starvation periods according to control group. The parameters measured returned to control values after 33 days of the refeeding. Collectively, the present study indicated that starvation induces MDA, SOD, CAT, GSH-Px, GR, AR and NO activity in the tissues, and A. leptodactylus exposed to starvation can be withstand 78 days.
AtıfWoS8OpenAlex14
İncele - MakaleAçık Erişim2013Scopus SJRQ2The effect of dietary n-3 series fatty acids on the number of pleopadal egg and stage 1 juvenile in freshwater crayfish, Astacus leptodactylus Eschscholtz
Harlioglu, Muzaffer Mustafa; Çakmak, Mehmet Nuri; Köprücü, Kenan; Aksu, Onder; Harlioglu, Ayse Gul; Yonar, Serpil Mise; Duran, Tuba Cakmak; Özcan, Sinan; Gündogdu, Hande
The effect of dietary n-3 series fatty acids on the number of pleopadal egg and stage 1 juvenile in freshwater crayfish, Astacus leptodactylus was investigated. Crayfish were fed with n-3 series fatty acids supplemented diets and a control diet for 251days. Control diet did not comprise additional n-3 series fatty acids. However, D2, D3 and D4 groups were supplemented with n-3 series fatty acids at 1%, 2% and 3% level respectively. Results showed the beneficial effects of dietary n-3 series fatty acids on the production of pleopodal egg and stage 1 juvenile number. At the end of the experiment, pleopodal egg (from 177 to 234) and stage 1 juvenile number (from 167 to 225) increased significantly with increased dietary n-3 series fatty acid level. In addition, an increase in dietary n-3 series fatty acids led to an increase in number of pleopodal egg and stage 1 juvenile produced per gram of female crayfish weight. It can be concluded that the reproductive efficiency of A. leptodactylus (i.e., pleopodal egg and stage 1 juvenile number) can be improved in controlled hatchery conditions by adding n-3 series fatty acid into the diet of this species.
AtıfWoS22OpenAlex26İncele - MakaleÖn baskısı açık2013Scopus SJRQ2Effect of dietary n-3 series fatty acids on sperm production in the freshwater crayfish, Astacus leptodactylus (Eschscholtz) (Astacidae)
Harlioglu, Muzaffer Mustafa; Köprücü, Kenan; Harlioglu, Ayse Gul; Yonar, Serpil Mise; Duran, Tuba Cakmak; Çakmak, Mehmet Nuri; Aksu, Onder; Özcan, Sinan; Kutluyer, Filiz; Gündogdu, Hande
The objective of the present work was to evaluate the effects of three different rates of long chain n-3 polyunsaturated fatty acid (LC n-3 PUFA) on the sperm number of Astacus leptodactylus. The experiment was carried out with the four following treatments: control group (not supplemented LC n-3 PUFA), D1 (1 %), D2 (2 %) and D3 (3 %). The sperm number of A. leptodactylus was counted; the reproductive system was weighted; and the macroscopical analysis of the testes and vasa deferentia (DVD) were conducted. In addition, gonado-somatic index (GI) and testes index (TI) were also calculated. The results showed that there was a significant difference between the crayfish fed LC n-3 PUFA supplemented diets (D1, D2, D3) and control in mean sperm number (P < 0.05). The highest sperm number was found for the crayfish fed D3 (6.27 +/- A 0.14 x 10(8) sperm/distal vas deferens section). The results also showed that the reproductive system of the crayfish fed D3 and D2 was significantly heavier than that of the crayfish fed the control and D1 (P < 0.05). On the other hand, there was not a significant difference in the testes weight and vasa deferentia weight between the crayfish fed the control and D1, and between the crayfish fed D2 and D3 (P < 0.05). GI of the crayfish fed D3 and D2 was significantly higher than that of the crayfish fed control and D1 (P > 0.05), but there was not a significant difference in the TI of the crayfish fed control, D1, D2 and D3 (P > 0.05). In conclusion, diets containing different levels of LC n-3 PUFA significantly increase the sperm number of A. leptodactylus, and they are crucial for the production of higher number of sperm in this species.
AtıfWoS30OpenAlex34İncele - MakaleAçık Erişim2012Scopus SJRQ3An investigation on the sperm number and reproductive parameters of males in wild caught freshwater crayfish (Astacus leptodactylus, Eschscholtz)
Harlioglu, Muzaffer Mustafa; Kutluyer, Fitiz; Gür, Seyfettin
In the present study, the sperm number of wild caught Astacus leptodactylus was counted in the beginning of reproduction season. In addition, the reproductive system, testes, and vasa deferentia were weighed, and gonado-somatic index and testicular index were calculated. Twenty-five adult males of A. leptodactylus were used for the study. Significant linear regressions were found between body length (and weight) and sperm count, reproductive system weight, testes weight and vasa deferentia weight (P < 0.05). The mean sperm number of vas deferens for the size range of 41-56 mm carapace length crayfish was 5.72 +/- 4.54 x 10(9) sperm/distal vas deferens (DVD) section. Sperm number ranged from 4 x 10(8) to 8.5 x 10(9) sperm/DVD section. The results revealed that an increase in body weight causes an increase in sperm number. For example, mean sperm number was 3.87 +/- 2.87 x 10(9) for the weight range of 15-24 g crayfish, 5.01 +/- 2.62 x 10(9) for the weight range of 25-35 g crayfish and 7.37 +/- 2.87 x 10(9) for the weight range of 36-42 g crayfish. In conclusion, this study provides some data on the male reproduction characters and needs to be improved with details about the reproductive performance of males (i.e., sperm number and quality) in order to reach a maximum reproductive efficiency in captivity.
AtıfWoS20İncele - Derleme MakaleAçık Erişim2011Scopus SJRQ2Status of freshwater crayfish (Astacus leptodactylus) in Iran
Karimpour, M.; Harlioglu, M. M.; Aksu, O.
Iranian native crayfish includes one crayfish species, Astacus leptodactylus, with two subspecies, A. l. leptodactylus (lives in freshwater) and A. l. eichwaldi (lives in the Caspian Sea with 12 ppt salinity). Only A. leptodactylus is commonly distributed in Iranian water resources. Nearly 80 years ago local fishermen started to catch Anzali Lagoon crayfish and sold them to foreigners and embassy employees. The consumption of crayfish in Iran is very low, approximately 1 t annually. The first commercially significant crayfish harvest in Iran was 11.3 t from Anzali Lagoon in 1985. It was carried out by a Turkish company. In 1985, the introduction of A. leptodactylus was started into suitable Iranian freshwaters. For example, crayfish from Anzali Lagoon were introduced into Arass water reservoir in 1985. Today, Arass water reservoir is the main resource of crayfish in Iran. There was no further crayfish harvest in Iran until 1993. In that year, a private Iranian company began harvesting the Iranian crayfish and exporting them to European countries. In 1993, 3.2 t of crayfish were exported from Iran. Although there have been fluctuations between years, the export of crayfish in Iran increased remarkably after 1996. The successful results of crayfish introductions gave rise to this increase. In 2003, the export of A. leptodactylus from Iran reached the maximum level (216 t). The commercial value of exported crayfish between 2000 and 2009 varied from 1.5-2.5 million US$ annually and its amount was 106-211.5 t. However, there was a reduction in the export of A. leptodactylus from Iran after 2003, to just above 100 t. In conclusion, in order to increase crayfish production in Iran, introduction of A. leptodactylus into suitable water resources, and management, conservation and monitoring of present crayfish populations should be carried out.
AtıfWoS21OpenAlex26İncele