Decapterus maruadsi, commonly known as the maruadsi scad, is a species of marine fish belonging to the jack family, Carangidae. This species is found in the Indo-Pacific region and is a significant component of the local ecosystem.
Description & Characteristics
Decapterus maruadsi is a relatively small fish, reaching a maximum size of 30.0 cm. It is characterized by its elongated, fusiform body, with a slightly compressed profile. The dorsal fin consists of two distinct parts: a spiny anterior portion with 8 spines and a soft posterior portion with 29-31 rays. The anal fin also has two distinct parts, with 2 spines followed by 28-31 soft rays. The lateral line is gently arched anteriorly and straight posteriorly, with a series of scutes along its course.
Habitat and Occurrence
The maruadsi scad, Decapterus maruadsi, is primarily found in tropical and subtropical waters of the Indo-Pacific region. This species is particularly common in coastal areas and is often found in association with coral reefs. It is a pelagic fish, meaning it inhabits the open ocean, but it may also be observed in waters with depths ranging from the surface down to 100 meters.
Taxonomy
Decapterus maruadsi is classified within the Class: Teleostei, Order: Carangiformes, and Family: Carangidae. This family encompasses a diverse group of fishes known as jacks, trevallies, and horse mackerels, all of which exhibit similar anatomical characteristics and are adapted to a predatory lifestyle.
Feeding
Decapterus maruadsi is a carnivorous fish, feeding primarily on smaller fish, crustaceans, and other invertebrates. Its diet varies according to the availability of prey in its specific habitat. The maruadsi scad plays a crucial role in the food web, contributing to the balance of the marine ecosystem.
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