Abstract
BackgroundThe Bay of Bengal coast, Bangladesh is a hotspot of fisheries abundance and diversity. A new species of Carangid family Alepes kleinii is recorded and described for the first time in the coastal waters of Bangladesh.ResultsA total of 29 individuals of Alepes kleinii were collected from the surveyed areas between January to March, 2016. Validation of this species was confirmed by phenotypic characteristics including body and fins colour, shape, vertical stripes, number of fin rays etc. which were found to be identical to that of the Alepes kleinii described in existing literature. The regression parameter value (b = 2.81) of the length-weight relationship (W = aLb) indicates that the Bay of Bengal provides favourable environmental conditions for the growth and development of this species.ConclusionThe discovery of the razorbelly scad in these waters provide valuable information regarding species distribution and extension, location and habitat preference. This information is prerequisite for the sound management of the coastal fisheries of Bangladesh.
Highlights
The Bay of Bengal coast, Bangladesh is a hotspot of fisheries abundance and diversity
Wide-ranging coast of Bangladesh is regarded as fisheries biodiversity hotspot (Chaklader et al, 2015; Hanif et al 2015; Siddik et al 2015; Chaklader et al 2016; Siddik et al 2016a; Siddik et al, 2017) but until this record, the razorbelly scad has previously been unreported in Bangladesh
Parameters used for identification included body colour, dark vertical strip, colour of caudal fin, black spot on operculum, number of dorsal fin, ventral spine, shape of caudal lobe, number of fin rays, strongly arched lateral line
Summary
The Bay of Bengal coast, Bangladesh is a hotspot of fisheries abundance and diversity. The razorbelly scad has predatory habits and generally preys upon small crustaceans, copepods, larval fish, lucifer shrimp, prawns, amphipods and fish eggs (Kalita & Jayabalan, 2000). It is widely dispersed throughout the Mediterranean Sea and Red Sea in the west (Adam, 1966), and most of the Indo-West Pacific region including the coast of Pakistan, south-eastern coast of India, Sri Lanka, Indonesia, Philippines, Taiwan, Papua. Wide-ranging coast of Bangladesh is regarded as fisheries biodiversity hotspot (Chaklader et al, 2015; Hanif et al 2015; Siddik et al 2015; Chaklader et al 2016; Siddik et al 2016a; Siddik et al, 2017) but until this record, the razorbelly scad has previously been unreported in Bangladesh
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