EXPERIMENTAL EVALUATION OF THE HERBIVORY INTERACTION BETWEEN PHYSA SP. AND PERIPHYTON

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SHARIFI M.; GHAFORI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE Year:2007 | Volume:31 | Issue:A3 Page(s): 292-300

Download Full-Text

Persian Verion

View:

650

Download:

192

Cites:

Information Journal Paper

Title

EXPERIMENTAL EVALUATION OF THE HERBIVORY INTERACTION BETWEEN PHYSA SP. AND PERIPHYTON

Author(s)

SHARIFI M. | GHAFORI M. | Issue Writer Certificate

Keywords

PERIPHYTONQ3

HERBIVOROUS SNAILQ3

ARTIFICIAL STREAMSQ3

GAMASIAYAB RIVERQ3

PHYSA SP.Q3

DIATOMSQ3

Abstract

The influence of the HERBIVOROUS SNAIL (Physa sp.) on the algal PERIPHYTON community from the Gamasiyab River, Kermanshah province in western Iran was examined by establishing a gradient of PHYSA SP. density in ARTIFICIAL STREAMS. The impact of Physa grazing was evaluated by measuring dry mass, ash-free dry mass (AFDM) and chlorophyll a in the PERIPHYTON community. Snails significantly depressed PERIPHYTON biomass. Following twelve days of grazing of the grazer densities of 0, 0.015, 0.03 and 0.06 individuals/cm2 the dry masses of the PERIPHYTON communities were 3.04, 2.9, 2.66 and 1.07 mg/cm2 respectively. Snails also decreased ash-free dry mass by 2.04, 1.78, 1.63 and 0.71 mg/cm2 and chlorophyll a by 8.6, 8.06, 5.25 and 4.6 mg/m2. During this experiment the survival percentage for 0.015, 0.03 and 0.06 (individuals/cm2) treatments was 77.7%, 58.3% and 30% respectively. During the 12 days of the grazing period in the artificial stream the snail growth also showed a density dependent pattern. Diatom biovolumes calculated in this study are 57.1×106, 36×106×31×106, and 5.8×106 mm3/cm2 for snail densities of 0, 0.015, 0.03 and 0.06 individuals/cm2 respectively. A group of species which are found primarily in the grazed treatments include Achnanthes lanceolata, Cocconeis pediculus, and Ulothrix sp. In contrast, ungrazed assemblage had high relative abundance of non adnate DIATOMS such as Nitzcshia linaris, Gomphonema sp. and non filamentous chlorophytes such as Scenedesmus sp.

Cites

No record.

References

No record.

Cite

APA: Copy

SHARIFI, M., & GHAFORI, M.. (2007). EXPERIMENTAL EVALUATION OF THE HERBIVORY INTERACTION BETWEEN PHYSA SP. AND PERIPHYTON. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, 31(A3), 292-300. SID. https://sid.ir/paper/117909/en

Vancouver: Copy

SHARIFI M., GHAFORI M.. EXPERIMENTAL EVALUATION OF THE HERBIVORY INTERACTION BETWEEN PHYSA SP. AND PERIPHYTON. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE[Internet]. 2007;31(A3):292-300. Available from: https://sid.ir/paper/117909/en

IEEE: Copy

M. SHARIFI, and M. GHAFORI, “EXPERIMENTAL EVALUATION OF THE HERBIVORY INTERACTION BETWEEN PHYSA SP. AND PERIPHYTON,” IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, vol. 31, no. A3, pp. 292–300, 2007, [Online]. Available: https://sid.ir/paper/117909/en

Related Journal Papers