Population dynamic of Anodonta cygnea in the Anzali wetland

Document Type : (original research)

Authors

1 Inland waters Aquaculture Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Anzali, Iran

2 Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran

Abstract

Research on the Swan Mussel (Anodonta cygnea) population distribution and biometrics were conducted during 2015. Individuals sampling were carried out monthly from 14 stations. Length, width and height of shells was measured with using of a slide caliper to an accuracy and 0.01 mm and age of swan mussels were examined by counting annual growth on the shell surface. The highest and lowest frequency belonged to Bahambar station with 33% and Sheijan station with 8% respectively. The distribution of these shellfish is Central area and western parts of Anzali wetland. The age of shells was from 2 to 9 classes and 5 to 7 years old individuals dominated. The highest and lowest average of weight and length were calculated for Hendekhaleh station (W= 203.34 gr and L= 13.45 cm) and Bahambar station (W= 78.83 gr and L= 8.63 cm) respectively. Using Fisat ll program and based on Schiffre's method, L∞ = 13.65 cm and the growth coefficient factor 0.48 was calculated. The natural mortality coefficient was 1.154. Most recruitment (smaller in size) are observed in the months of September and early October. This indicates the existence of young reserves of reproduction and the addition of a new generation to the population. The existing reserves in Mahrooz to Bahmbar, which was the habitat of younger oysters, can be used for breeding programs of this species and preserving its stock.

Keywords

Main Subjects

References

  1. Augspurger, T.; Keller, A.E.; Black, M.C.; Cope, W.G. and Dwyer, F.I., 2003. Water quality guidance for protection of freshwater mussels (unionidae) from ammonia exposure, Environ. Toxicol. Chem. Vol. 22, pp: 2569-2575.
  2. Chojnacki, J.C.; Grzeszczyk-Kowalska, A. and Buczek, W., 2009. Biometrics of the swan mussels Anodonta cygnea in the Southwest part of the Szczecin Lagoon in 2007. EJPAU. Vol. 20, No. 1, pp: 225-230.
  3. Chojnacki, J.C.; Rosinska, B.; Rudkiewicz, J. and Smola, M., 2011. Biometrics of the swan mussel Anodonta cygnea, Polish J. of Environment. Study. Vol. 20, No. 1, pp: 225-230.
  4. Cyr, H., 2008. Physical forces constrain the depth distribution of the abundant native mussel Elliptio complanata in lakes. Freshwater Biology. Vol. 53, pp: 2414-2425.
  5. Douda, K., 2011. The environmental biology and conservation of the flagship groups of stream macroinvertebrate species in the Czech Republic, PhD Thesis, Czech university of life sciences Prague, Faculty of Environmental Sciences, Department of Ecology.
  6. Dudgeon, D. and Morton, B., 1983. The population dynamics and sexual strategy of Anodonta woodiana in Plover cove reservoir, Hong kong, J. Zool.lond. Vol. 201, pp: 16-183.
  7. 1997. Review of the state of world fishery resources: Marine fisheries. FAO Fisheries Circular. 920 FIRM/C920. FAO, Rome.
  8. Erdilal, R.; Kosal-Sahin, S. and Gulyavus, H., 2007. Comparison of the flesh yields and chemical compositions of two freshwater clam species (Unio pictorum and Anodonta cygnea). Istanbul University Journal of fisheries and Aquatic Sciences. Vol. 23, No. 9.
  9. Lie, J., 1993. Estimation of filtration rate of zebra mussel. Published by the zebra mussel research program. pp: 1-3
  10. Muller, D. and Patzner, A., 1996. Growth and age structure of the swan mussel Anodonta cygnea (L.) at fifferent depths in lake Mattsse (Salzburg, Austria). Hydrobiologia. Vol. 341, pp: 65-70.
  11. Munro, J.L. and Pauly, D., 1983. A simple method for comparing the growth of fishes and invertebrates. ICLARM Fishbyte. Vol. 1, No. 1, pp: 5-6.
  12. Novais, A.; Souza, A.T.; Illari, M.; Pascoal, C. and Souza, R., 2015. From water to land: How an invasive clam may function as a resource pulse to terrestrial invertebrates, Science of the Total Environment. Vol. 538, pp: 664-671.
  13. Pauly, D. and Morgan, G.R., 1984. Length-based methods in fisheries research. Intemational center for living aquatic resources management, Kuwait institute for scientific research. 468 p.
  14. Rosinska, B.; Chojnacki, J.C.; Lewandowska, A.; Matwiejczuk, A. and Samiczak, A., 2008. Biometrics of the swan mussels (Anodonta cygnea) from choze laks in the Pomeranian Region, Limnological Review. Vol. 8, No. 1-2, pp: 79-84.
  15. Sparre, P. and Venema, S.C., 1992. Introduction to tropical fish stock assessment. Part 1-manual. FAO Press. Rome, Italy. 376 p.
  16. Sparre, P. and Venema, S.C., 1998. Introduction to tropical fish stock assessment. FAO technical paper, 306/1. FAO, Rome, Italy. 407 p.
  17. Strayer, D.l., 2014. Understanding how nutrient cycles and freshwater mussels (Unionidae) affect one another. Hydrobiologia. Vol. 735, pp: 277-292.
  18. Taylor, C.C., 1960. Temperature, growth and mortality-the Pacific cockle. Journal du Conseil International Pour Lexploration de la Mar. Vol. 26, pp: 117-124.
  19. Zając, K., 2002. Habitat preferences of swan mussel Anodonta cygnea (Linnaeus 1758) (Bivalvia, Unionidae) in relation to structure and successional stage of floodplain waterbodies. Ekologia (Bratislava). Vol. 21, No. 4, pp:
    345- 355.
  20. Zając, K., 2004. Polska czerwona księga zwierząt bezkręgowce, Instytut Ochrony Przyrody PAN, Kraków. 447 p.
  21. Zajac, K.; Zajac, T. and Cmiel, A., 2016. Spatial distribution and abundance of Unionidae mussels in aeutrophic floodplain lake. Limnologica. Vol. 58, pp: 41-48.
  22. Weber, E., 2005. Population size and structure of three mussels species (Bivalvia: Unionidae) in a northeastern German river with special regard to influences of environmental factors. Hydrobiologia. Vol. 537, pp: 169-183.
  23.  Wirbellose. 2001. Grosse Teichmuschel (Schwanenmuschel). Anodonta cygnea L. Retrieved September 7, 2006, from http://www.bsh-umweltladen.de/bsh/2000-wirbelloser.htm (in German)
  24. Vakily, J.M., 1992. Determination and comparison of bivalve growth rate with emphasis on Thailand and other tropical areas. ICLARM Technique. Reproduction. Vol. 36, 125 p.
Journal of Animal Environment
Volume 13, Issue 1
May 2021
Pages 431-438

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