Physical habitat simulation of Rainbow trout in mountainous streams of Iran

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Research Paper 01/10/2014
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Physical habitat simulation of Rainbow trout in mountainous streams of Iran

Mahboobeh Hajiesmaeili, Seyed Ali Ayyoubzadeh , Mehdi Sedighkia, Mohammad Reza Kalbassi
J. Bio. Env. Sci.5( 4), 497-503, October 2014.
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Abstract

River physical habitat is defined as the variation of hydraulic parameters such as depth, velocity and bed cover in habitat condition of aquatic organisms. According to the previous studies physical habitat has considerable effect on habitat condition of different fish species. This study is carried out on a mountainous stream in Iran. In this research one dimensional hydraulic habitat model is used to simulate physical habitat of Rainbow trout as one of the first habitat simulation studies about the interaction between ecology and hydraulic in Iran. Based on the results as the flow increases the amount of habitat suitability decreases rapidly for fry life stage, but for adult physical habitat condition will be improved with increasing discharge. Streams with similar hydrological and geomorphic condition to the study stream can provide suitable habitat condition for different life stages of Rainbow trout in natural conditions and any changes in flow condition must occur based on the habitat time series curves. The upstream part of the stream (with slope of 0.03) has the poorest habitat condition and moving towards the downstream parts the habitat suitability condition will be improved. Habitat suitability will decrease for coldwater fish like Rainbow trout with increasing the earth temperature and the fish will be forced to move to the upstream parts in order to have suitable temperature condition and due to the unsuitable physical habitat condition of these parts ecological problems will increase in future. Thus, river restoration projects will be necessary.

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Abdoli A, Naderi M. 2009. Biodiversity of Fishes in Southern Basin of the Caspian Sea, Tehran: Abzian Scientific Publication.(in Farsi).

Armstrong J, Kemp S, Kennedy GJA, Ladle M, Milner NJ. 2003. Habitat requirements of Atlantic salmon and brown trout in rivers and streams. Fisheries Research 62, 143–170.

Bovee KD. 1986. Development and Evaluation of Habitat Suitability Criteria for Use in the Instream Flow Incremental Methodology. Instream Flow Information Paper 21. U.S. Fish and Wildlife Service.

Bovee KD, Lamb BL, Bartholow JM, Stalnaker CB, Taylor J, Henriksen J. 1998. Stream Habitat Analysis Using the Instream Flow Incremental Methodology. U.S. Geological Survey. Fort Collins, Co: Biological Resources Division Information and Technology Report.

Coad BW. 2013. Freshwater Fishes of Iran, Species Accounts-Salmonidae-Oncorhynchus mykiss. http://www.briancoad.com. [06 May 2013].

Fausch KD, Hawkes CL, Parsons MB. 1988. Models that predict standing crops of stream fish from habitat variables: 1950–1985. USDA For. Serv. Gen. Tech. Rep. WO-213.

Jowett  IG. 1997. Tissue in Situ Hybridization: Methods in Animal Development Wiley, Heidelberg.

Moyle PB, Cech JJ. 1988. Fishes: An introduction to ichthyology, 2nd ed. Englewood Cliffs, N.J: Prentice Hall.

Newbury RW. 1984. Hydrologic determinants of aquatic insect habitats. In: Resh V H, Rosenburg DM, eds. The Ecology of Aquatic Insects. Praeger: New York, 323-357

Odum EP. 1971. Fundamentals of ecology, third edition. Philadelphia, Penn: WB. Saunders Co.

Raleigh RF, Hickman RC, Solomon RC, Nelson PC. 1984. Habitat Suitability Information: Rainbow Trout. U.S. Fish and Wildlife Service. FWS/OBS-82/10.60.

Sedighkia M, Ayyoubzadeh SA, Hajiesmaeili M. 2014. Environmental Challenges and Uncertainties of Hydrological and Hydraulic Approaches for Environmental Flow Assessment in Streams of Iran. The 4th International Conference on Environmental Challenges and Dendrochronology, Iran.

Stalnaker CB. 1979. The Use of Habitat Structure Preferenda for Establishing Flow Regimes Necessary for Maintenance of Fish Habitat. In: Ward JV, Stanford JA, eds. The Ecology of Regulated Streams. New York: Plenum Press, 321- 337.

Stanford JA, Ward JV. 1979. Stream Regulation in North America, The ecology of regulated streams, Plenum Press, 215-236.

US Bureau of Reclamation. 1968. Guide to the Application of the Water Surface Profile Computer Program.

Waddle TJ. 2001. PHABSIM for Windows User’s Manual and Exercises. 01- 340, US Geological Survey Open-File.

Waters BF. 1976. A Methodology for Evaluating the Effects of Different Stream Flows on Salmonid Habitat. In: Orsborn JF, Allman CH, eds. Instream Flow Needs. Bethesda, Md: Special Publication of the American Fisheries Society, 254-266.