Salinity variations drive the phytoplankton dynamics in the Gangetic estuary: insights from the modelling approach for species responses and pollution indicators along the longitudinal estuarine gradient.

Spatial and temporal variation in phytoplankton assemblage and their species responses with varying salinity regimes were investigated in the Hooghly Matlah estuary, India during two annual period. The exhaustive survey in the ten sampling stations recorded 132 species of phytoplankton belonging to 95 genera. The study revealed 12 taxonomic algal groups with the dominance of class Bacillariophyceae (43 species).

Whole mitochondrial genome sequencing and phylogenetic analysis of Gangetic mystus ().

, known as Gangetic mystus, is a freshwater indigenous catfish. The present study represents the first-ever complete mitochondrial genome sequencing of . The whole mitochondrial genome size is 16,554 bp (GenBank accession number OR018997).

Fishery, growth, mortality, and stock assessment of endangered Tor putitora from Tehri dam reservoir, Uttarakhand, Himalayan foothills of India in relation to environmental variables.

The current study determined Tor putitora (Hamilton, 1822) fishery, growth, mortality, and population characteristics using length-frequency data assembled monthly from the Tehri dam reservoir in Uttarakhand from January to December 2022. The estimation data was separated into 40-mm class intervals, and population parameters were investigated and computed using the FiSAT-II software tool. W = 0.

Probing river health status: a study based on index of biotic integrity (IBI) in Tapti River of Deccan plateau, India.

Anthropogenic activities impacted the ecological health of rivers by altering the physical habitat and water flow as well as by pollution. Monitoring of biotic groups for gauging the river health is a prerequisite for assessing the extent of degradation and formulating management guidelines for river restoration. An assessment using fish-based index of biotic integrity (IBI) was carried out in the Central Indian river, Tapti, for probing its health status.

Isopod parasite, Milne Edwards, 1840 infestation in Wongratana, 1983, as a first record from Narmada estuary, West Coast of India.

The study reported as a new host of isopod infestation. Furthermore, the record of from the Narmada estuary is of first kind in the West Coast of India. commonly known as slender thryssa forms an important commercial fish species at Bhadbhut, a part of the Narmada estuary.

New record of two isopods and from riverine freshwater fishes in the river Tapti.

The present paper deals with the infestation of freshwater fishes , and by the parasitic isopods and in Tapti, a westward freshwater flowing river of India. The isopods H. Milne Edwards, 1840 and Stebbing, 1907 were identified with the taxonomic keys of Milne Edwards (1840) and Stebbing (1907), respectively.

Population structure and genetic diversity of Indian Major Carp, Labeo rohita (Hamilton, 1822) from three phylo-geographically isolated riverine ecosystems of India as revealed by mtDNA cytochrome b region sequences.

The population structure and genetic diversity of Rohu (Labeo rohita Hamilton, 1822) was studied by analysis of the partial sequences of mitochondrial DNA cytochrome b region. We examined 133 samples collected from six locations in three geographically isolated rivers of India. Analysis of 11 haplotypes showed low haplotype diversity (0.