Spatio-Temporal Distribution of Aquatic Biodiversity in Gorai Creek, Sub-Urban Mumbai, India

Abstract

A study conducted to assess the faunal diversity in Gorai creek of Mumbai, India during August 2019 to July 2020, revealed 90 species of fauna under 70 genera, 50 families, 29 orders, 6 classes and 3 phyla. The order-wise representation of identified fauna was found to be 7 ichthyofauna, 4 pelecypods, 6 gastropods, 2 cephalopods, 1 shrimp and 1 stomatopod along with 8 avifauna. The data collected month wise were pooled together and transformed into three seasons [Monsoon (June to September), Winter (October to February), and Summer (March to May)] and this seasonal data were used for the study of biodiversity pattern. Using the average seasonal species occurrence data as input the following biodiversity indices, S, N, d, J', Brillouin, Fisher, ES(1), H'(loge), 1-Lambda, N10, Delta, Delta*, Delta+, sDelta+, Lambda+, Phi+ & sPhi+ were calculated by using PRIMER Vers. 7.0. The results of the present study indicates that Gorai creek ecosystem is endowed with moderate biodiversity that needs to be conserved.

Ichthyofaunal Diversity from Longline Catches in the Gulf of Mannar (GoM), Southeast Coast of India

“…(2023) reported a higher diversity of 184 species belonging to 12 orders, 68 families, and 128 genera as bycatch landing from the trawlers operated off Thoothukudi Coast, Gulf of Mannar, India. Sudhan et al . (2022) recorded 90 species from the dol net catches in the Gorai creek ecosystem, which is quite higher than the present study.…”

“…The collected fish samples were segregated, counted, weighed, and photographed and later the samples were identified up to species level employing classical taxonomical methods, such as morphometric characters, meristic counts, and descriptive characters (Sudhan et al ., 2022). Further, the identified species was confirmed by referring to standard literature (Fischer and Bianchi, 1981; Nelson, Grande, and Wilson, 2016) and updated with Fish Base (Froese and Pauly, 2021).…”