HQl NGHI KHOA HQC T O A N Q U O C V £ SINH T H A I V A T A I N G U Y E N SINH VAT L A N THO* 5
THANH PHAN LOAI TUYEN TRUNG BIEN d ClfA SONG VA RlTNG NG^P MAN CIJ^A SONG HONG
NGUYEN VU THANH, NGUYEN DINH TU", NGUYEN THANH HIEN J Vi^n Sinh thdi vd tdi nguyen sinh vgt * Vi^n Hdn ldm Khoa hgc vd Cdng ngh4 Vi^l Namm
GAGARINI Viin Sinh hgc nude ngi dia Bot Vi?n Hdn ldm Khoa hgc Lien bangN^
Trong thdi gian qua d Viet Nam, nghien ciiu ve da dang sinh hgc quan xa tuydn trimg bien sdng tu do d he sinh thii cua sdng, rimg ngJip min (HSTCS RNM) nhiet ddi da dugc lien hanh d mpt sd viing cira sdng ven biln tai cac tinh phia Bic, cua sdng v i rimg ngap m^n d cic tinh phia Nam [1-8]. Dual diy trinh bay ket qui nghien cuu ve thinh phin loai tuyen triing blend HSTCS RNM ciia sdng Hong thdi gian 2007-2013.
I. PHlTONG PHAP NGHIEN CUtJ
Miu Tyen triing bien vi Melofauna dugc thu dinh ky trong hai miia kho vi miia mua trong cac nam 2007-2012 tai Vudn Quoc gia Xuan Thuy, Cdn Ngan, Cdn Lu va viing ciia sdng Ba L^t thupc Thai Binh. Mau dugc thu bang dng nhya cam tay cd dudng kinh 35mm, the tich moi miu 100cm\ dugc djnh hinh bang dung djch formaldehyde ndng 4%; tuydn triing dugc tich Ipc bing dung djch LUDOX-50TM; tieu bin dugc chuin bi dudi dang co djnh theo Seinhorst]
(1959) va dugc bio quan tai phdng miu thugc Phdng Tuydn trung hgc, Vi?n Sinh thai va Tii nguyen sinh viit, Vi?n Han lam Khoa hgc va Cdng nghe Viet Nam, NghTa Dd, Cau Giay Ha Npi.
Tuyen triing bien dugc phan Ioai theo cac tai li^u chuyen nganh, do ve tren kinh hien vi do!
pha huynh quang Axioskop 2 Plus.
IL KET QUA NGHIEN CUtJ
Cic nghien cuu vd thanh phin Ioai tuyen triing d h^ sinh thai cua sdng, rirng ngap m^n cii^ ' sdng Hdng da dugc bat diu tii 2005 tra Iai day, tuy nhien cac ket qua dd cdn rat le te va chira ^ day du. Day la kel qua nghien CIJU diy du nhat ve thanh phan Ioai tuyen triing sdng tu do 6 HSTCS RNM sdng Hdng hien nay. Tal khu vyc Vudn Qudc gia Xuan Thiiy, viing lan can bao gdm ciira Ba Lat, Thai Binh da ghi nhan dugc 108 Ioai tuyen triing bien thugc 52 gidng cua 23 hg cua 8 bp.
Bg Enoplida bit gap vdi dai dien ciia 5 hg; bg Monhysterida cd 4 hg; cic bd Plectida, Chromadorida cd 3 hg; cic bd Desmodorida, Dorylaimida, Aerolaimida, Desmodora vdi d?!
di?n cua 2 hg; duy nhat bg Desmoscolasida chl bat gip vdl d^i dien ciia 1 hg. Hau hel cac loai bit g^p d HSTCS RNM la tuyln triing sdng ty do d bidn, viing nude ven bd va d HSTCS RNM, chl cd 2 loai sdng trong mdi trudng nude ngpt-lg la Laimydorus oxiirus Gagarin, Nguyen Vu Thanh, 2005 v'aAqualides thornei (Schneider, 1937).
Trong quan xa tuydn triing bidn sdng d he sinh thai cda sdng va rirng ngap man sdng Hong, hg Xyalidae (bg Monhysterida) co phan bd rat rgng, dugc phit hien 6 khip nai, da dang ve thanh phin loai va chiem ty Ie cao nhit vd s6 Iugng ca th^ (69-297 ca thd/1 Ocm^ tram tich) trong ci hai miia mua v i khd, vol dai dien ciia 7 gidng (21 loai), dac biet trong hg niy giong
HQI NGH! KHOA HQC T O A N Q U O C V £ SINH THAI VA T A I NGUYEN SINH VAT L A N T H U 5 TMiionema khdng chi chidm sd lugng ca the cao nhat trong timg mau nghien ciru ma cdn da l^gnhit va thanh phin loai (12 loai).
Ho tuyen triing cd so giong nhieu tiep theo la hg Leptolaimidae (bg Plectida), vdi 6 gidng
• 13 loii, kS tiSp la hg Desmodoridae (bg Desmodorida) vdi 6 gidng, 10 Ioai, hg romesomatidae (bd Araeolaimida) vdi 5 gidng, 9 Ioai; theo sau li cic hg Oxystomidae, (^raadoridae vol sd Iugng gidng it hem.
Cl HSTCS RNM sdng Hdng, cic loii tuyen triing thugc hg Xyalidae (bd Monhysterida) thitdng chi^m ly !e ap dio ve sd lugng ca the trong ca hai miia khd va miia mua nhu:
T)aptonema paraoxyuroides n. sp. (26-55 ci the/IOcm trim tich); Sphaerotheristus validum Gagarin, Nguyen Vu Thanh, 2005 (20- 36 ca thd'i Ocm^ tram tich); Sphaerolaimus maeoticus Filipjev, 1922 (17-32 ca th^lOcm^ tram tich) va Terschelligia lissa Timm, 1962 (ho Linhomoeidae) (16-37 ca thd/IOcm' trim tich).
Da cdng bd I gidng mai-Isocanthonchus Gagarin va Nguyen Vu Thanh gen. n. va 10 loii tuyen triing mdi ddi vdi khoa hgc the gioi.
Cac loii mdi da dugc cdng bd tren cic t?p chi khoa hpc chuyen nganh li cic loai sau day: Trissonchulus minor Gagarin, Nguyen Vu Thanh, Nguyen Dinh Tu, Nguyen Xuan Phuong, 2012,- Trissonchulus aculicaudatus Gagarin, Nguyen Vu Thanh, Nguyen Dinh Tu, Nguyen Xuan Phuong, 2012; Anoplostoma nhatranensis Tchesunov, Nguyen Vu Thanh, 2010; Microlaimus orientalis Gagarin, Nguyen Vu Thanh, 2012; Pseudochromadora obese Gagarin, Nguyen Vu Thanh, 2011; Isocanthonchus obesus Gagarin, Nguyen Vu Thanh, 2011;
Sabatieria curvispulata n. sp; Daplonema paraoxyuroides n. sp; Daplonema balalum n. sp vi l^haerolaimus rivalls n. sp.
DANH LVC CAC LOAI TUYEN TRUNG BIEN Of HSTCS RNM Cl^A SONG HONG (sip xep theo he thong tien hda Delay va Plaxter, 2004)
NGANH NEMATODA Pott, 1932 A. LOfP CHROMADOREA Inglis, 1983
Bp ARAEOLAIMIDA De Coninck and Schuurmans-Stekhoven, 1933 1. Ho Axonolaimidae Filipjev, 1918
Giong Parodonlophora Timm, 1963
1. Parodonlophora obscurus Gagarin, Nguyen Vu Tlianh, Nguyen Dinh Tu, 2003 2. Parodonlophora fluviatilis Gagarin, Nguyen Vu Thanh, 2008
3. Parodonlophora sp.
2. Ho Comesomatidae Filipjev, 1918
GiongAsynimelaitnus Nguyen D. T. etal.. 2006
4. Asymmelalmus vietnamicus Nguyen D. T. et al.. 2006 Giong Dorylaimopsis Dillevsen 1918
5. D. tumida Gagarin, Nguyen Vu Thanh, 2006 6. Dorylaimopsis sp.
Giong//o/j/jcna Vitiello, 1969
7. H mira Gagarin, Nguyen Vu Thanh, 2006
HQI NGHj KHOA HQC T O A N Q U Q C V E SINH THAI VA TAI NGUYEN SINH VAT L A N T H U 5 Gidng Paracomesoma Hope and Murphy, 1972
8. Paracomesoma elegans Gagarin, Nguyen Vu Thanh, 2009 9. Paracomesoma lissium Gagarin, Nguyen Vu Thanh, 2009 10. Paracomesoma sp.
Giong Sabatieria KoxxviWt, 1903
1 \. Sabatieria foetida Gagarin, Nguyen Vu Thanh, 2006
\2. Sabatieria curvispulata n. sp 3. Hp Diplopeltidae Filipjev, 1918
Gibng Campylaimus Cobb, 1920
13. Campylaimus geriachi Timm, 1961 PHAN LOfP CHROMODORIA Pearse, 1942 Bo CHROMADORIDA Chitwood, 1933 4. Ho Chromadoridae Filipjev, 1917
Gidng/)/c/iro/na(/ora Kreis, 1929
14. Dlchromadora arcospiciilum Timm, 1961 15. Dlchromadora simplexTimm, 1961.
Giong Ptycolaimellus Cobb, 1920
16. Ptycholalmellus ponticus Filipjev, 1922 17. Ptycholalmellus sp.
Giong Ptygolaimellus Cobb, 1920
18. Ptygolaimellus ponticus Filipjev, 1922 Gidng 5/7/7o;7/jore//a Cobb, 1920
19. Spilophorella abberans Timm, 1961 5. Hg Cyartholaimidae Filipjev, 1918
Giang Isocanthonchus Gagarin et Nguyen Vu Thanh, 2011
20. Isocanthonchus obesus Gagarin, Nguyen Vu Thanh, 2011 6. Hg Selachnematidae Cobb, 1915
Gihng Gammanema Cobb, 1920 21. Gammanema sp.
Gidng Halichoanolalmus de Man, 1886
12. Halichoanolalmus dolichurus Saveljev, I9I2 23. Halichoanolalmus sp.
Bp DESMODORIDA De Coninck, 1965 7. Hg Desmodoridae Filipjev, 1922
Giong Desmodora de Man, 1889 24. Desmodora sp.
Giong Desmodorella Cohb, 1933
25. Desmodorella aquaedulcic Gagarin, Nguyen Vu Thanh, 2003 Giong Metachromadora Filipjev, 1918
26. Metachromadora minor Gagarin, Nguyen Vu Thanh, 2010 21. Metachromadora vulgaris Timm, 1961
28. Metachromadora sp.
HQl NGHI KHOA HQC T O A N Q U Q C V £ SINH THAI VA TAI N G U Y £ N SINH VAT L A N THU 5 Gidng On>cc Cobb, 1891
29. Onyx sp.
Gidng Pseudochromadora Daday, 1899
30. Pseudochromadora parva Gagarin, Nguyen Vu Thanh, 2008 31. Pseudochromadora obese Gagarin, Nguyen Vu Thanh, 2011 Giong Spilophorella Filipjev, 1917
32. Spilophorella abberans Timm, 1961 8. Hg Microlaimidae Micolelzky, 1922
Giong Microlaimus deMan, 1880
33. Microlaimus orientalis Gagarin, Nguyen Vu Thanh, 2012 B$ DESMOSCOLECIDA Filipjev, 1929
9. Ho Desmoscolexcidae Shipley, 1896 Giong Trichoma Cobb, 1894
34. Trichoma sp.
B$ MONHYSTERIDA Filipjev, 1929 10. Hg Monhysteridae de Man, 1876
Giong Paramonohystera Steiner, I9I6
35. Paramonohystera brevicaudata Gagarin, Nguyen Vu Thanh, 2009 Giong Thalassomonhystera Jacobs, 1987
36. Thalassomonhystera minor Gagarin, Thu, 2008 37. Thalassomonhystera sp. n
11. Hg Sphaerolaimidae Filipjev, 1918 Giong Sphaerolaimus Bastian, 1865
3i. Sphaerolaimus maeoticus Filipjev, 1922 39.Sphaerolaimus gracilis deMan, 1976 40. Sphaerolaimus rivalls n. sp 41. Sphaerolaimus sp.
12. Hg Xyalidae ChiUvood, I95I Giong Amphymonhystera Allgen, 1929
42. Amphymonhystera sp.
Giong Paramonhystera Steiner, 1916
43. Paramonhysstera brevicauda Gagarin, Thu, 2008.
Giong Metadesmoiaimus Sch. Stekhoven, 1935
44. Metadesmoiaimus subaquylus Gagarin, Nguyen Vu Thanh, 2004 Gihng Daplonema Cobb, 1920
A5. Daplonema balalum n. sp
46. D. dihyslera Gagarin, Nguyen Vu Thanh, 2004 47. D. durum Gagarin, Nguyen Vu Thanh, 2004 48. D. curvaiitm Nguyen Vu Thanh, Gagarin, 2004 49. D. durum Gagarin, Thanh, 2004
HQI NGHI KHQA HQC T O A N Q U O C V £ SINH THAl VA T A I N G U Y £ N SINH VAT L A N THLf 5 50. D. elongatum Gagarin, Thanh, 2004
5\.D. mekongi Thanh, Gagarin, 2004 52. D. orientalis Gagarin, Nguyen Vu Thanh, 2005 53. D. oxyuroides Gagarin, Nguyen Vu Thanh, 2004 5A. D. paraoxyuroides n. sp
55. D. pumilis Nguyen Vu Thanh, Lai Phu Hoang, Gagarin, 2005 Sd. Daplonema sp.
Gidng Therislus Bastian, 1865
57. Therislus orientalis Gagarin, Nguyen Vu Thanh, 2005 Giong Sphaerotheristus Timm, 1968
58. Sphaerotheristus minor Gagarin, Nguyen Vu Thanh, 2004 59. Sph. nothus Gagarin, Nguyen Vu Thanh, 2005 60. Sph. parvus Gagarin, Nguyen Vu Thanh, 2004 61. Sph. validum Gagarin, Nguyen Vu Thanh, 2005 Giong Rhynchonema Cobb, 1920
62. Rhynchonema cinctum Cobb, 1920 13. Ho Linhomoeidae Filipjev, 1922
Giong Desmolaimus Man, 1880
63.Desmolaimuszelandicus deMan, 1880 Giong Terchellingia deMan, 1888
64. Terschellingiacommunis deMan, 1888 65. Terschelligialongicaudatus deMan, 1907
66. Terschellingia longlsoma Gagarin, Nguyen Vu Thanh, 2004 67. Terschelligia lissa Timm, 1962
68. Terschelligia rivalls Gagarin, Nguyen Vu Thanh, 2009 69. Terschellingia sp.i
Bg PLECTIDA Malakhov, 1982 14. Hg Aegialoalaimidae Lorezen, 1981
Gidng Aegialoalaimus deMan, 1907
10. Aegialoalaimus tenuis Krels, I82I 11. Aegialoalaimus sp.
15. Ho Leptolaimidae Orley, 1880 Giong Antomicron Cobb, 1920
72. Antomicron intermedius Gagarin, Nguyen Vu Thanh, 2005 73. Antomicron sp.
Gidng Leptolaimoides Vitiello, 1971
74. Leplolaimoides asialicus Gagarin, Nguyen Vu Thanh, 2005 75. Leptolaimoides sp.
HQI NGHj KHQA HQC T Q A N Q U O C V £ SINH T H A I V A TAI NGUYEN SINH VAT L A N T H U 5 Gidng Leptolalmus de Man, 1876
16. Leptolalmus praeclarus Timm, 1961 77. L. pumilus Gagarin, Nguyen Vu Thanh, 2009 78. Leptolalmus vipriensis Gagarin, Nguyen Vu Thanh, 2005 Gidng Procamacolaimus Gerlach, 1953
79. Procamacolaimus sp.
Gidng Camacolaimus deMan, 1889
80. Camacolaimus tardus de Man, 1889
$\. Camacolaimus parvus Timm, 1961 82. Camacolaimus sp.
Giong Paraphanolaimus Micolelzky, 1923
83. Paraphmolaimus asialicus Gagarin, Nguyen Vu Thanh, Nguyen D. T, 2003 16. Hg Haliplectidae Chitwood, 1951
Giong//a/ip/ec/us Cobb, 1913
84. Haliplecliis dorsaliss Cobb in Chitwood, 1913 iS.Haliplectus sp.1
B. L 6 P ENOPLEA Inglis, 1983 PHAN L 6 P E N O P L I A Pearse, 1942 Bg ENOPLIDA Filipjev, 1929
17. Ho Anoplostomatidae Geriach and Riemann, 1974 Gidng Anoplosloma Butschli, 1874
86. Anoplostoma viviparum (Bastian, 1865)
87. Anoplosloma nhatranensis Tchesunov, Nguyen Vu Thanh, 2010 18. Hg Ironidae de Man, 1876
Giong Trissonchulus Cobb, 1920
88. Trissonchulus aculicaudatus Gagarin, Nguyen Vu Thanh, Nguyen Dinh Tu, Nguyen Xuan Phuong, 2012 89. Trissonchulus minor Gagarin, Nguyen Vu Thanh, Nguyen Dinh Tu, Nguyen Xuan Phuong, 2012 90. Trissonchulus oceanus Cobb, 1920
19. Hg Tripyloididae deMan, 1876 Giong Balhylaimus Cobb, 1894
9\. Bathylaimus setosicaudalus Timm, 1961 20. Hg Oxystomidae Chitwood, 1935
Giong Halalaimus deMan, 1888
92. Halalaimus {Halalaimus) durus Gagarin, Nguyen Vu Thanh, 2004 93. Halalaimus {Halalaimus) gracilis deMan, 1888
94. Halalaimus {Halalaimus) minor Gagarin, Nguyen Vu Thanh, 2004 95. Halalaimus {Tyncnodora) lulicolus Timm, 1961
96. Halalaimus linetoides Timm, 1961 91. Halalaimus seiosus Timm, 1961 98. Halalaimus sp.
707
HQl NGHI KHOA HQC T O A N Q U O C V £ SINH T H A I V A T A I N G U Y £ N SINH VAT L A N THU 5
Gidng Oxystomina Filipjev, 1921 99. Oxystomina afinis Geriach, 1956 100. Oxystomina elongata (Butschli, 1874) Gidng Thalassoalaimuss deMan, 1893
101. Thalassoalalmus sp.
21. Ho Oncholaimidae Filipjev, 1916 GidngAdoncholaimus deMan, 1890
\02. Adoncholaimus indicus Linstow, 1907
\03. Adoncholaimus parvus Gagarin, Nguyen Vu Thanh, 2003 104. Adoncholaimus sp.
Gidng Viscosia de Man, 1890
105. Viscosia timmi Gagarin, Nguyen Vu Thanh, 2009.
Bd DORYLAIMIDA Pearse, 1942 22. Ho Dorylaimidae de Manm, 1876
Gidng Laimydorus Siddiqi, 1969
\06. Laimydorus oxurus Gagarin, Nguyen Vu Thanh, 2005 23. Hg Nygolaimidae Thorne, 1935
Gidng Aquatides Thome, 1974
101. Aqualides thornei fSchneider, 1937)
HI. KET LUAJN
Tai HSTCS RNM ciia sdng Hdng da ghi nh|in dugc 107 Ioai tuyen trimg bidn thupc 52 giong ciia 23 hp va 8 bd. Da phat hien, md ta va cdng bd I gidng mai-Isocanthonchus Gagarin vi Nguyen Vu Thanh gen. n. v i 10 Ioai tuyen triing bien la mdi ddi vdi khoa hgc.
Quan xi tuyen triing sdng die trung trong HSTCS RNM, Xyalidae chiem ty le cao nhit ve so lugng loai cung nhu sd lugng c i the trong c i hai miia mua va khd, vdi dai di?n cua 7 giong (21 loai), d§c bipt gidng Daplonema khdng chi chilm sd lugng ca thd cao nhit trong tirng mlu nghien cuu ma cdn da dang nhat ve thanh phan loai (12 Ioai).
Cac loil sau diy thudng chiem ty I? ap dao vd sd Iugng ca the trong c i hai miia khd va miia mua la Daplonema paraoxyuroides n. sp; Sphaerotheristus validum Gagarin, Nguyen Vu Thanh, 2005; Sphaerolaimus maeoticus Filipjev, 1922 va Terschelligia lissa Timm, 1962.
Left cdm an: Tap the ldc gid xin bdy to long biit an tai dng Chu tich Vi?n Hdn ldm Khoa hgc vd Cong ngh? Vift Nam dd tai trg kinh phi cho cong trinh ndy thdng qua di tdi dgc lap cdp Vi4n Hdn ldm Khoa hoc vd Cong ngh^ Vi^t Nam vd di tdi HTQT Vi^t-Nga giai dogn 2012-2013.
TAI LIEU THAM KHAO
1. Gagarin, Nguyen Vu Thanh, 2008. Biology of Inland Waters Journal V.4: 12-17.
2. Gagarin, Nguyen Thi Thu, 2008. Zoologichesky Joumal V.87 (4): 505-510.
3. Gagarin, Nguyen Thi Thu, 2008. Zoologichesky Joumal V.87 (5): 515-523.
4. Nguyen Vu Thanh, Gagarin, 2009. Tap chi Sinh hpc 31 (2): 8-15.
5. Gagarin, Nguyen Vu Thanh, 2011. International Joumal of Nemalology V.21 (I): 21-26.
HQl NGH! KHOA HOC TOAN QUOC v £ SINH THAl VA TAI NGUYEN SINH VAT L A N THU 5 - (jggarin.Nguyen VuThanh,2011.International Joumal ofNematology V.21 (2): 121-129.
7 Nguyen Vu Thanh, Nguyen Dinh Tu, Gagarin, Tchesunov, Nguyen Thanh Hien, 2012. Tap chi
• Sinh hpc 34 (4): 408-113.
g Gagarin, Nguyen Vu Thanh, Nguyen Dinh Tu, Nguyen Xuan Phuong, 2012. Zoologichesky Joumal V.91(2): 236-241.
FAUNA OF FREE-LIVING MARINE NEMATODES IN MANGROVE ECOSYSTEM AND ESTUARY OF RED RIVER, VIETNAM
NGUYEN VU THANH, NGUYEN DINH TU, NGUYEN THANH HIEN, GAGARIN
SUMMARY
During 2007-2013. the fauna of free-living marine nematodes in Red River Estuary and its mangrove forest had been investigated. 107 species belonged to 52 genera of 23 families of 8 orders were recognized; among them one genus and 10 nematode species were described as the new species for science. Family Xyalidae was the most abundant in species composition and in individual density; the second was family Leptolaimidae. the third and fourth places occupied by families Desmodoridae and Comesomatidae and tiie last was family Chromadoridae in both seasons Nematodes that occurred predominantly in both dry season and wet season were following species: Daplonema paraoxyuroides n sp; Sphaerotheristus validum Gagarin, Nguyen Vu Thanh, 2005, Sphaerolaimus maeoticus Filipjev, 1922 and Terschelligia lissa Timm, 1962.
