STUDIES ON THE POPULATION STRUCTURE AND REPRODUCTIVE TRAITS OF UNIO DOUGLASIAE IN QINGLAN LAKE, JIANGXI PROVINCE

CHEN Tang-Hua; OUYANG Shan; XIONG Liu-Feng; QI Tao; WU Xiao-Ping

Volume 34 Issue 3

Aug. 2014

Turn off MathJax

Article Contents

Abstract

References

ACTA HYDROBIOLOGICA SINICA > 2010 > 34(3): 473-480.

CHEN Tang-Hua, OUYANG Shan, XIONG Liu-Feng, QI Tao, WU Xiao-Ping. STUDIES ON THE POPULATION STRUCTURE AND REPRODUCTIVE TRAITS OF UNIO DOUGLASIAE IN QINGLAN LAKE, JIANGXI PROVINCE[J]. ACTA HYDROBIOLOGICA SINICA, 2010, 34(3): 473-480.

Citation:

PDF (1163 KB)

STUDIES ON THE POPULATION STRUCTURE AND REPRODUCTIVE TRAITS OF UNIO DOUGLASIAE IN QINGLAN LAKE, JIANGXI PROVINCE

College of Life Sciences and Food Engineering, Nanchang University, Nanchang 330031, China;
2. The Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang 330031, China;
3. College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China

Received Date: September 14, 2009
Rev Recd Date: January 18, 2010
Published Date: May 24, 2010

Graphical Abstract

Abstract

Abstract

Freshwater mussels are one of the most widespread and imperiled groups of animals in the world, which play a major part in the functioning of many freshwater ecosystems, however, their populations declined continually during the 20th century. Unio douglasiae, one important specie of Unionidae, is widespread in lakes, rivers and impoundments, but little is know about its population structure and reproductive traits. Investigations on the population structure and reproductive traits of Unio douglasiae were carried out in Qinglan Lake from July, 2008 to July, 2009. From the view of population structure, the population tended to be stable and shell length of individuals was mainly from 40 mm to 65 mm in the population. The maximum length and the minimum length of individuals were 83.6 mm and 20.3 mm in the specimens. The sex ratio of natural population was found 1∶1.20, the sex ratio of each month was in close agreement with the expected value of 1∶1 by χ2 test. The minimum mature female with a shell length of 27.6 mm and weight of 2.62 g, and which of the male with a shell length of 27.9 mm and the weight of 2.21 g were found. The minimum pregnancy individual was found with a shell length of 29.8 mm and weight of 2.98 g in examined specimens. We concluded that the female and male individuals matured at the age of 1 year. Taking the developmental characteristics gametes in follicles and features of follicles into account, the annual cycle of maturation for both male and female could be divided into the following three periods: (1) growth and maturation period, October to January of next year, (2) spawning period, February to June, (3) recovery period, August to September. The female in maturation could spawn several rounds in one reproduction cycle. Two pieces of outer gills of the female were used as marsupium. Embryo developed in the conglutinates. In the development process of embryo, the colour of marsupium changed from ivory white to light red, then became cardinal red after matured. Mature glochidia on a mucous thread released from the water column. After stimulated by stressed condition, pregnancy mussels would release the superconglutinate. The breeding season lasted from February to July. The breeding peak period occurred from April to June, the pregnancy rates were 80.43%, 84.21% and 78.05% respectively. The average fecundity reached about (183.72±6.43)×103 embryo or glochidia. The maximum fecundity was 344.64×103 embryo or glochidia and the length of individual was 54.5 mm. The minimum fecundity was 49.95×103 embryo or glochidia and the length of individual was 29.8 mm. Fecundity was related significantly to both length and weight. This study may provide more information related to basic biology and guidance for conservation of freshwater mussels and science-based management of rivers and lakes.
- Unio douglasiae,
- Population structure,
- Fecundity

FullText(HTML)

References (27)

References

[1]	[3] Zhang X, Qi Z Y. General Malacology [M]. Beijing: Science Press. 1961, 205-207 [张玺, 齐钟彦. 贝类学纲要. 北京: 科学出版社. 1961, 205-207]
[1]	Bogan A E. Freshwater molluscan conservation in North America: problems and practices [J]. Journal of Conchology Special Publication, 1998, 2: 223-230
[2]	[4] Haag W R, Staton J L. Variation in fecundity and other reproductive traits in freshwater mussels [J]. Freshwater Biology, 2003, 48: 2118-2130
[2]	Zhang X, Li S C, Liu Y Y. Bivalves (Mollusca) of Dongting Lake and its surrounding waters, Hunan Province, China [J]. Acta Zoologica Sinica, 1965, 17(2): 197-293 [张玺, 李世成, 刘月英. 洞庭湖及周围水域的双壳类软体动物. 动物学报, 1965, 17(2): 197-293]
[3]	[5] Moles K R, Layzer J B. Reproductive ecology of Actinonaias ligamentina (Bivalvia: Unionidae) in a regulated river [J]. Journal of the North American Benthological Society, 2008, 27(1): 212-222
[4]	[6] Liu Y Y, Zhang W Z, Wang Y X, et al. Economic Fauna of China-Freshwater Mollusk [M]. Beijing: Science Press. 1979, 74-75 [刘月英, 张文珍, 王耀先, 等. 中国经济动物志- 淡水软件动物. 北京: 科学出版社. 1979, 74-75]
[5]	[7] Liu Y J, Ouyang S, Wu X P. Distribution and status of freshwater bivalves in the Poyang Lake [J]. Jiangxi Science. 2008, 26(2): 280-283 [刘勇江, 欧阳珊, 吴小平. 鄱阳湖双壳类分布及现状. 江西科学, 2008, 26(2): 280-283]
[6]	[8] Shu F Y, Wu X P. Investigation of bivalves resources in main branch lake inlet of the Gan River [J]. Territory & Natural Resources Study, 2004, 3: 80-81 [舒风月, 吴小平. 赣江主支入湖口双壳类资源调查, 国土与自然资源研究, 2004, 3: 80-81]
[7]	[9] Hu Z Q, Liu J, Fu X Q, et al. Study on mollusca of Xiang River trunk stream [J]. Acta Hydrobiologica Sinica, 2007, 31(4): 524-531 [胡自强, 刘俊, 傅秀芹, 等. 湘江干流软体动物的研究. 水生生物学报, 2007, 31(4): 524-531]
[8]	[10] Wu X P, Liang Y L, Wang H Z. A comparative study on glochidial morphology of Unionidae (Bivalvia) Ⅱ. Lanceolaria, Lamprotula, Hyriopsis and Cristaria [J]. Acta Hydrobiologica Sinica, 1996, 23(2): 141-145 [吴小平, 梁彦龄, 王洪铸. 蚌科钩介幼虫比较形态学研究I. 四个种幼虫的形态. 水生生物学报, 1996, 23(2): 141-145]
[9]	[11] Wei Q S, Fu C H. Comparative studies on morphology of the glochidia of six mussel species (Mollusca: Unionidae) [J]. Acta Hydrobiologica Sinica, 1994, 18(4): 303-308 [魏青山, 傅彩红. 珠蚌科六种蚌钩介幼虫形态的比较研究. 水生生物学报, 1994, 18(4): 303-308]
[10]	[12] Shu F Y, Wu X P. Study on the biology of Lamprotula rochechouarti [J]. Journal of Qufu Normal University (Natural Science), 2005, 31(1): 85-87 [舒凤月, 吴小平. 猪耳丽蚌的生物学研究. 曲阜师范大学学报(自然科学版), 2005, 31(1): 85-87]
[11]	[13] Sterki V. Some notes on the genital organs of Unionidae with reference to systematics [J]. Nautilus, 1895, 9: 91-94
[12]	[14] Holopainen I J. and Hanski I. Life history variation in Pisidium (Bivalvia: Pisidiidae) [J]. Holarctic Ecology, 1986, 9: 85-98
[13]	[15] Wang H, Bai Z Y, Li J L, et al. A primary study on the morphological changes of embryo of Hyriopsis cumingii in nurturing pouch of outer gill [J]. Journal of Shanghai Fisheries University, 2007, 16(3): 219-223 [王宏, 白志毅, 李家乐, 等. 三角帆蚌胚胎在外鳃育儿囊内形态变化初步研究. 上海水产大学学报, 2007, 16(3): 219-223]
[14]	[16] Zheng G M, Wei Q S. Studies on the reproductive characteristics of female Anodonta woodiana pacifica(Heude) in South Lake, Wuhan [J]. Journal of Huazhong Agricultural University, 2000, 19(5): 490-493
[15]	[17] Wang Y F, Wei Q S. On reproductive biology of Lamprotula Scripta Heude [J]. Journal Huazhong (Central China) Agricultural University, 1994, 13(2):170-174 [王玉凤, 魏青山. 刻裂丽蚌的繁殖生物学. 华中农业大学学报, 1994, 13(2): 170-174]
[16]	[18] Wang Y F, Wei Q S. On reproductive biology of Lamprotula caveata [A]. Proceedings of the Sixtieth Anniversary of the Founding of China Zoological Society [C]. Beijing: Science and Technology Press of China. 1994, 492-495 [王玉凤, 魏青山. 洞穴丽蚌的繁殖生物学. 中国动物学会成立60 周年纪念论文集. 北京: 中国科学技术出版社. 1994, 492-495]
[17]	[19] Ling G. Primary studies on conservation biology of Lampro tula leai (Gray) [D]. Thesis for Master of Science, Nanchang University. 2005 [凌高. 背瘤丽蚌保护生物学初步研究. 硕士学位论文, 南昌大学. 2005]
[18]	[20] Zhu Z Y, Gong S Y, Zhang X P, et al. Reproductive habits of Lamprotula fibrosa (Heude) [J]. Journal Huazhong (Central China) Agricultural University, 1997, 16(4): 374-379 [朱子义, 龚世园, 张训蒲, 等. 绢丝丽蚌的繁殖习性研究. 华中农业大学学报, 1997, 16(4): 374-379]
[19]	[21] Choick C. Ecological studies on the Lamprotula coreana: (1) on the breading season and the larva, glochidia [J]. The Korean Journal of Zoology, 1965, 8(2): 67-72
[20]	[22] Tian J F, Wei Q S. On gonad development and reproductive cycle of the Cristaria Plicata in the South Lake of Wuhan [J]. Journal Huazhong (Central China) Agricultural University, 1993, 12(2): 190-196 [田津方, 魏青山. 武汉南湖褶纹冠蚌性腺发育与繁殖周期. 华中农业大学学报, 1993, 12(2): 190-196]
[21]	[23] Kat P W. Parasitism and the Unionacea (Bivalvia) [J]. Biological Reviews, 1984, 59: 189-207 [24] Watters G T. Morphology of the conglutinate of the kidneyshell freshwater mussel [J]. Ptychobranchus fasciolaris. Invertebrate Biology, 1999, 188: 289-295
[22]	[25] Aldridge D C, Mcivor A L. Gill evacuation and release of glochidia by Unio pictorum and Unio tumidus (Bivalvia: Unionidae) under thermal and hypoxic stress [J]. Journal of Molluscan Studies, 2003, 69: 55-59
[23]	[26] Yong M, Williams J. The reproductive biology of the freshwater pearl mussel Margaritifera margaritifera (Linn.) in Scotland. I. Field studies [J]. Archiv fiir Hydrobiologie, 1984, 99: 405-422
[24]	[27] Thomas M H, Jeffrey T G, Rebekah L R. Reproductive phenology in Megalonaias nervosa (Bivalvia: Unionidae) in Wheeler Reservoir, Tennessee River, Alabama, USA [J]. Hydrobiologia, 2005, 539: 131-136
[25]	[28] Mcivor A L, Aldridge D C. The reproductive biology of the depressed river mussel, Pseudanodonta complanata (Bivalvia: Unionidae), with implications for its conservation [J]. Journal of Molluscan Studies, 2007, 73: 259-266

Cited By

Get Citation

PDF

XML

Article views (1239) PDF downloads (633)

STUDIES ON THE POPULATION STRUCTURE AND REPRODUCTIVE TRAITS OF UNIO DOUGLASIAE IN QINGLAN LAKE, JIANGXI PROVINCE

Abstract

References

Catalog

Related

STUDIES ON THE POPULATION STRUCTURE AND REPRODUCTIVE TRAITS OF UNIO DOUGLASIAE IN QINGLAN LAKE, JIANGXI PROVINCE

Abstract

References

Catalog

Related

Export File

Citation

Format

Content