Volume 4, Issue 4 (12-2022)
JAD 2022, 4(4): 91-99 |
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Khaledi H. Environmental factors and benthic macrofaunal distribution in the establishment of a baseline for coastal management in Chabahar Bay, Gulf of Oman, Iran. JAD 2022; 4 (4) :91-99
URL: http://jad.lu.ac.ir/article-1-247-en.html
URL: http://jad.lu.ac.ir/article-1-247-en.html
1. Iranian National Institute for Oceanography and Atmospheric Science, Tehran, Iran , hodakhaledi@yahoo.com
Abstract: (6161 Views)
Benthic macrofauna has a pivotal role in the energy flow and material cycles of marine ecosystems. Abiotic and biotic factors determine the presence and distribution of benthic macrofauna. The present study investigated possible relationships between benthic macrofauna and natural abiotic factors along the coastal region of the Gulf of Oman, including the north of Chabahar Bay, Konarak, and Tis. This was achieved through survey of the supra-littoral and intertidal zones at low tide, during the cold and warm seasons. In each zone, nine transects were sampled at random using quadrats. Then, sediment characteristics and macrofaunal abundance were determined. Mollusks and echinoderms had the highest and the lowest species richness, respectively. The average values for the Shannon–Wiener index of the transects at Tis, north of Chabahar Bay, and Konarak were 3.22, 3.28, and 3.20 in the warm season, respectively, while the index reached 3.29, 3.47, and 3.17 in the winter. Regardless of seasonality, the level of biodiversity was at a maximum in the northern part of Chabahar Bay, and Konarak showed the minimum biodiversity. The results of multi-linear regression analysis proposed that non-biological factors are suitable proxies for predicting the levels of species density in the study regions (R2= 0.72, F(6,71) = 2.25, p< 0.05).
Keywords: Anthropogenic changes, ecological diversity, invertebrates, macrobenthos, marine biodiversity
Type of Study: Original Research Article |
Subject:
Ecological Diversity
Received: 2022/08/4 | Accepted: 2022/09/10 | Published: 2022/12/31
Received: 2022/08/4 | Accepted: 2022/09/10 | Published: 2022/12/31
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