1. Hake - South of Turkey - GSA 24 Ali Cemal GUCU Ferit BINGEL Meltem OK Middle East Technical University Institute of Marine Sciences GFCM – SCSA 15-19 September 2008, İZMİR

2. X www.ims.metu.edu.tr Middle East Technical University Institute of Marine Sciences

3. R/V BILIM 300 GT, Steel hull, Length: 42 m, Beam: 9.47 m, Tonnage: 433 gross, Speed: 11.5 knots max, 9.5 knots cruising ERDEMLİ Wooden hull sail boat, 30 Gross tons; 10 knots max speed; length: 17 m; LAMAS Wooden hull trawler, 35 Gross tons; 12 knots max speed; length: 17 m;

4. Evolution of the industrial fishing fleet (DIE, 2004) Purse seiners Trawlers

5. State Statistical Institute, Fisheries statistics Hake landings – South of Turkey

7. Climate Change Summer sea surface temperatures

8. Water Masses Atlantic water - AW 2 - Atlantic water - AW The existence of AW is due to the influx of the Atlantic water through the Strait of Gibraltar Levantine Intermediate water - LIW 3 - Levantine Intermediate water - LIW The LIW is formed in the Levant Basin (off the Antalya) occupying the layer between 300 to 500 meters; it is warm and very saline; and affects the oceanography of the entire Mediterranean North Atlantic Deep water - NADW 4 - North Atlantic Deep water - NADW Deep Water—a deep water mass that spreads at about 200 meters below the Levantine Intermediate water that exits from the Gibraltar straits; is cooler and less salty than LIW, but it is warmer and saltier than the surface AW (and Modified Atlantic Water ) Levantine Surface Water - LSW 1 - Levantine Surface Water - LSW In the Levantine Basin LSW is the overtopping warmer and more saline surface layer, extending down to 40 m; occupying most of the surface layer of the Eastern Mediterranean Sea during the warm part of the year. It is the product of intense evaporation, with the salinity reaching maximum values of around 39.5 by the end of the summer, especially in the northwest Levantine and southeast Aegean Seas around Rhodos

9. Competition by Lessepsian immigrants – Saurida undosquamis -

10. Summary of the fisheries data used in the analysis DatePeriod# of Stations Area Coverage May 1980 - Nov 1982Monthly7 X 4 stationsEast of Göksu river Oct.1983 - Oct. 1984Seasonal180 stationsEast of Cape Anamur Apr.89Single40 stationsEast of Göksu river Nov.96Single20 stationsEast of Göksu river Jun. 1996 - Dec. 1999Monthly3 stationsTırtar - Erdemli May 1999 - May 2003Seasonal6 stationsKızılliman Bozyazı Nov 2003 -Seasonal12 stationsKızılliman Bozyazı May 2007 -Monthly3 stationsTırtar - Erdemli Total1453 stations

11. CPUE at Region I (Tırtar)

12. Seasonal occurrence at the subregions (1980-1982) I II III IV V VI VII

15. I-Goksu III-Seyhan II-Tirtar 18.8 cm Ligas et al. Biol. Mar. Medit., 10(2):853-855

16. AuthorSexAge (yr) 12345678 Ghirardelli, 1959bM+F18.823.028.838.0---- Županović, 1968M+F919283540444957 Flamigni, 1983 M+F (May)14.321.329.035.0---- M+F (Nov.)19.026.233.339.0---- AuthorSex(L m, cm) Zei, 1949M22.30 Županović, 1968 M20.28 F26-33 Županović and Jardas, 1986 M20-28 F23-33 Ungaro et al., 1993M+F25-30 Cetinić et al., 1999M+F (Velebit Channel)24 n = 5821 min = 7 cm max = 43 cm http://www.faoadriamed.org/html/Species/MerlucciusMerluccius.html

17. Goksu – 1980/82 L ∞ = 65.7; K= 0.28; Z = 3.27 (2.77 – 3.77) Tirtar – 1980/82 L ∞ = 65.8; K = 0.28; Z = 3.45 (3.05 – 3.84)

18. AuthorSex L ∞ (cm ) K(yr -1 )t 0 (yr) Φ’ Flamigni, 1983M+F850.12-6.77 Alegria Hernandez and Jukić, 1990M+F92.830.097-0.6296.73 Bolje, 1992M+F750.12-6.52 Vrgoč, 1995 (“Hvar”)M+F83.270.125-0.736.76 Ungaro et al., 1993 M+F75.680.1530.146.78 F82.630.126-0.3126.76 Marano, 1996 M570.17-0.836.31 F67.50.159-0.4366.59 M+F67.50.144-0.8076.49 M+F (Bhatt)810.25-7.40 Marano et al., 1998b Marano et al., 1998c M720.150.0056.66 F840.130.1026.82 M+F840.12-0.146.74 M+F( Bhatt)62.20.23-6.79 M+F (Surf.)680.25-7.05 Vrgoč, 2000M+F77.950.130-6.67 EC XIV/298/96-EN, Ionian and Southern AdriaticM+F68.190.157-6.59 EC XIV/298/96-EN, Adriatic SeaM+F850.12-6.77

19. Fall – 1983 – Merluccius merluccius Fall – 1983 – Saurida undosquamis

20. Fishing pressure ( Number of boat at sight ) 1980-1984

21. Fall 1983 - CPUE Fall 1983 – mean length

22. Spring – 1984 – Merluccius merluccius Spring – 1984 – Saurida undosquamis

23. Spring 1984 - CPUE Spring 1984 – mean length

24. Fall – 1984 – Saurida undosquamis Fall – 1984 – Merluccius merluccius

25. Fall 1984 - CPUE Fall 1984 – mean length

26. Meluccius merluccius vs Saurida undosquamis

27. Depth vs CPUE

28. Thanks

29. Topography on the study area