Preliminary Investigation of Fishery Resources in Lishui Section of Oujiang River

2012 34 2 351-357 http / /xuebao. jxau. edu. cn Acta Agriculturae Universitatis Jiangxiensis E - mail ndxb7775@ sina. com 1 1 1 2 2 2 1* 1. 313001 2. 323000 2009 3 2009 6 2010 2 3 2 579 5 13 41 53 37 69. 81% 1 Distoechodon tumirostris Sinibrama macrops Pelteobagrus fulvidraco 33. 00% 12. 52% 11. 36% Margalef D 2009 7 ~ 1 2009 7 Shannon - Wiener H' 2009 7 8 Pielou J' 2009 6 15. 53 / st. 2 40 st. 3 27 Q958. 15 A 1000-2286 2012 02-0351 - 07 Preliminary Investigation of Fishery Resources in Lishui Section of Oujiang River LIAN Qing-ping 1 YUAN Ju-lin 1 ZHANG Ai-ju 1 YAO Zi-liang 2 WANG Kai-wei 2 LU Jun 2 MI Guo-qiang 1* 1. Institute of Freshwater Fisheries of Zhejiang Province Huzhou 313001 China 2. Fishery Technology Extension Station in Lishui City Zhejiang Province Lishui 323000 China Abstract This paper deals with the survey of fish resources and analysis of species diversity in Lishui section of Oujiang River. Fish were collected monthly at 3 stations in March 2009 June 2009 and February 2010. The results showed that a total of 2 579 fish were collected. The total of 53 species belong to 5 orders 13 families and 41 genera. The species of Cypinifomes has the highest number in population 37 species belong to Cyprinidae accounting for 69. 81% of total samples. The Siluriformes and Perciformes came in second. The numbers of species of the Anguilliformes and Synbranchiformes were comparatively smaller only 1 species. The dominant species were Distoechodon tumirostris Sinibrama macrops Pelteobagrus fulvidraco accounting for 33. 00% 12. 52% and 11. 36% of the total samples. The characters of the fish fauna can be divided into the marine fishes and freshwater fishes among the catch. The Margalef index was decling during the period from July 2009 to January 2010 the highest being in July 2009. The Shannon - Wiener diversity index was invariable throughout the whole year and relatively high in July and August 2009. The Pielou evenness 2011-10 - 09 2012-02 - 08 2008C03011 1979 E - mail Lianqp2001@ 163. com * E - mail zjmgq@ 163. com

352 34 index was inariable throughout the whole year. Hemibarbus laleo Bagridae Siniperca scherzeri Siniperca chuatsi were the main economic species in the Lishui section of Oujiang River. The average density reached 15. 53 ind. /net on June 2009. The number of species collected in station 2 was the largest in a year which was 40. The number of species collected in station 3 was the smallest in a year which was 27. Key words in Lishui section of Oujiang River fishery resources diversity 1 388 km 1 41. 7 km 2 20 3-14 15-20 3 1 1. 1 3 st. 1 119 44'20. 10 E 28 18'00. 69 N st. 2 119 47'11. 52 E 28 20'06. 86 N st. 3 119 52'48. 84 E 28 27'17. 96 N 1 2009 3 2009 6 2010 2 1 3 30 m 1. 5 m 15 cm 3 cm 220 V 22 00 ~ 06 00 3 8 h 4 5 19 00 ~ 21 00 1 h Fig. 1 1 Sampling stations for collecting fish in Lishui section of Oujiang River 21-24 10% 1. 2 Margalef D Shannon - Wiener H' Pielou J' 8 1 relative density RD RD = n i /N 100%

2 353 2-10% - 1% ~ 10% - 1% 3 Margalef D = S - 1 /lnn 4 Shannon - Wiener H' = - ΣP i ln P i 5 Pielou J' = H' /lns n i i N S P i i 2 2. 1 2 579 5 13 41 53 37 69. 81% 7 13. 21% 1. 89% 33 89. 19% 3 8. 11% 1 2. 70% 11 33. 3% 6 18. 18% 5 15. 15% 3 9. 09% 2 6. 06% Fig. 2 2 Monthly changes of species number individual number Distoechodon tumirostris 33. 00% Sinibrama macrops 12. 52% Pelteobagrus fulvidraco 11. 36% Carassius auratus auratus 8. 41% Pseudobagrus albomarginatus 7. 83% Hemibarbus laleo 6. 05% Acrossocheilus kreyenbergii 4. 42% 9 Silurus asotus 0. 89% Cyprinus carpio carpio 0. 81% Culter mongolicus mongolicus 0. 43% 41 12 93. 45% 1 2010 1 73. 63% 16. 00% ~ 45. 07% 2. 2 2009 6 2009 7 2009 7 2009 12 2009 7 29 2009 3 12 2010 1 12 2009 6 9 2009 6 3 Fig. 3 Monthly changes of the diversity indexes 466 2009 9 182 2009 9 11 11 446 2009 11 2010 2 2 110 2009 3 50 2

354 34 2. 3 Margalef D 2009 6 7 2009 7 1 2009 7 4. 80 Shannon - Wiener H' 2009 7 8 2. 56 2. 62 Pielou J' 2010 1 D H' J' 1. 96 1. 06 0. 43 3 Tab. 1 1 Fish species composition in Lishui section of Oujiang River Species Anguillidae /% Relative density /mm Rang of body length Month Anguilla japonica 0. 04 65. 0 7 Cyprinidae Leuciscinae Ctenopharyngodon idella 0. 31 15. 0 ~ 46. 0 7 ~ 8 10 ~ 11 2 Mylopharyngodon piceus + Squaliobarbus curriculus + Danioninae Opsariichthys bidens 0. 08 11. 3 ~ 13. 5 7 2 Zacco platypus 0. 08 8. 0 ~ 9. 0 10 12 Culterinae Hemiculterella wui 2. 71 12. 7 ~ 20 3 6 ~ 12 2 Sinibrama macrops 6. 05 9. 0 ~ 20. 0 3 6 ~ 12 1 ~ 2 Erythroculter ilishaeformis 0. 27 10. 2 ~ 26. 6 7 ~ 10 12 2 Culter mongolicus mongolicus 0. 43 15. 5 ~ 20. 8 7 ~ 9 Megalobrama amblycephala + Parabramis pekinensis 0. 04 15. 5 10 Xenocyprininae Distoechodon tumirostris 33. 00 9. 6 ~ 31. 4 3 6 ~ 12 1 ~ 2 Xenocypris davidi 0. 31 12. 9 ~ 24. 5 6 ~ 9 12 Acheilognathinae Rhodeus sinensis 0. 16 6. 2 ~ 7. 0 8 Rhodeus ocellatus ocellatus 0. 04 4. 6 8 Hypophthalmichthyinae Aristichthys nobilis 0. 08 33. 5 7 ~ 8 Hypophthalmichthys molitrix 0. 04 26. 0 7 Barbinae Spinibarbus hollandi + Acrossocheilus kreyenbergii 4. 42 8. 0 ~ 16. 5 3 6 ~ 11 1 ~ 2 Acrossocheilus wenchowensis wenchowensis 0. 04 14. 6 1 Cyprininae Cyprinus carpio carpio 0. 81 13. 2 ~ 36. 0 7 9 ~ 12 1 ~ 2 Carassius auratus auratus 8. 41 6. 5 ~ 22. 0 3 6 ~ 12 1 ~ 2 Gobininae Hemibarbus laleo 6. 05 8. 0 ~ 34. 5 3 6 ~ 12 1 ~ 2

2 355 Tab. 1 1 Fish species composition in Lishui section of Oujiang River Hemibarbus maculatus 0. 27 10. 0 ~ 20 3 8 11 Pseudorasbora parva 0. 12 5. 2 ~ 5. 6 8 Pseudorasbora elongata 0. 12 7. 5 ~ 9. 5 3 Sarcocheilichthys kiangsiensis 0. 04 10. 2 9 Sarcocheilichthys nigripinnis 0. 12 5. 3 ~ 6. 8 7 Sarcocheilichthys sinensis 0. 12 11 ~ 11. 5 9 11 Belligobio nummifer 0. 12 11. 0 ~ 12 6 Gnathopogon taeniellus 2. 02 7. 5 ~ 11. 2 6 ~ 12 2 Abbottina rivularis 0. 04 9. 0 8 Pseudogobio vaillanti vaillanti 0. 35 7 ~ 14. 5 3 10 ~ 11 Cobitidae Cobitis sinensis 0. 04 6. 2 7 Misgurnus anguillicaudatus 0. 08 9. 9 ~ 12. 2 7 9 Leptobotia tientaiensis compressicauda 0. 12 7. 1 ~ 9. 0 7 Homalopteridae Vanmanenia stenosoma stenosoma 0. 04 7. 8 1 Clariidae Clarias fuscus 0. 31 11. 5 ~ 29. 5 7 ~ 8 Siluridae Silurus asotus 0. 89 10. 3 ~ 34. 0 3 7 ~ 11 Bagridae Pelteobagrus fulvidraco 11. 36 6. 8 ~ 22. 5 3 6 ~ 11 1 ~ 2 Pelteobagrus vachelli 3. 06 8 ~ 17. 2 7 ~ 12 1 ~ 2 Pelteobagrus nudiceps 0. 23 11 ~ 22. 9 6 ~ 7 Pseudobagrus albomarginatus 0. 04 12. 6 8 Pseudobagrus tenuis 7. 83 8. 9 ~ 21. 2 3 6 ~ 12 1 ~ 2 Ophiocephalidae Channa argus + Symbranchidae Monopterus albus 0. 04 7. 8 ~ 9. 0 7 Serranidae Siniperca chuatsi 0. 04 14. 7 7 Siniperca scherzeri 1. 51 11. 3 ~ 30. 0 6 10 ~ 11 2 Eleotridae Eleotris oxycephala 0. 04 7. 6 1 Odontobutis obscura 0. 04 9. 6 8 Gobiidae Rhinogobius giurinus 1. 16 5. 4 ~ 6. 2 7 ~ 8 2. 4 Mastacembelidae Macrognathus aculeatus 0. 04 11. 2 9 1 1 52 2 578 st. 3

356 34 st. 1 st. 2 2. 5 3 3. 1 1975 11 21 66 19 2 579 5 13 53 13 19. 70% 19 20 80 25 26-28 3. 2 Margalef 29 Margalef D 2009 7 2010 1 3 20 6 20 3 7 30 2010 1 D H' J' 1. 96 1. 06 0. 43 3. 3 31 32 10% 1% ~ 10% 1% 3 9 41 26 7% 33 9 5 8 1 4

2 357 9 5 39 26 31 1. M. 1995 1-63. 2. J. 2006 148 6 50-52. 3. J. 2001 14 2 192-194. 4. J. 2003 22 4 226-229. 5. J. 200 37 4 553-556. 6. J. 2007 19 2 127-130. 7. J. 2007 24 3 41-44. 8. J. 2007 16 5 454-459. 9. J. 2007 27 6 68-70. 10. J. 2008 38 2 3-7. 11. 4 J.. 2011 33 3 568-572. 12. J.. 2010 32 2 236-242. 13. AFLP J.. 2009 31 4 727-733. 14. J. 2010 16 6 817-821. 15. J. 2009 16 3 372-380. 16. J. 2008 17 5 598-603. 17. J. 2008 32 5 733-739. 18. J. 2008 28 12 5948-5956. 19. R. 1975 1-29. 20. J. 2002 24 5 59-60 63. 21. M. 1995 1-549. 22. M. 1991 1-254. 23. M. 1998 1-531. 24. M. 2000 1-661. 25. J. 2007 14 4 637-643. 26. J. 2006 18 6 670-676. 27. J. 2005 14 4 418-421. 28. J. 2007 16 3 308-313. 29. J. 2009 37 20 9510-9513. 30. J. 2008 19 3 297-304. 31. J. 1986 10 2 137-150. 32. J. 2010 45 5 79-85. 33. J. 1996 27 1 6-1. 34. J. 2010 19 4 370-376.