Nanochitosan derived from marine annelids

Adetunji, Oluwaseun Adetunji and Olisaka, Frances N. and Ogunseye, Babatunde Israel and Innocent, Israel Hope and Inobeme, Abel and Udoakang, Aniefiok John (2023) Nanochitosan derived from marine annelids. In: Next Generation NANOCHITOSAN Applications in Animal Husbandry, Aquaculture and Food Conservation. Nikki Levy, pp. 75-103. ISBN 978-0-323-85593-8

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Abstract

The phylum Annelida consists of segmented worms which are identified with the pres ence of coelom which is a body cavity (or coelom), bristles that are moveable (or Setae/ Chaetae), and a segmented body through annulations that goes transversely. They are made up of a complex group containing up to 22,000 well-known species (Aguado et al., 2014). Annelids are coelomated organisms which are triploblastic, bilaterally symmetrical and coelomate organisms, usually have a circulatory system that is closed and a nephridia which plays a vital role in osmoregulation. Their sizes vary from millimeters to meters long and also possess feeding structures of varying complexities, different morphology of chaetal and sensory organs. They ubiquitous and distributed all over the world right from the deepest sediments of marine habitants to moderate altitudes of fresh water habitants as well as from the temperate to the tropic region (Donald and Bruno, 2009). This phylum of invertebrate animals is divided into three groups: hirudinea, poly chaeta, and oligochaeta. The marine annelids which are members of the class polychaeta have been found to display the more primitive features of the phylum (Susan et al., 2015). There are 6000 known species of the polychaetes and most of them are found floating ocean, wandering at the bottom or found living in the tube built by them. They have varying color ranging from dull to brilliant while of the species are known to be bioluminescent, such as Chaetopterus, Terebella, and Cirratulus (Hastings, 2011). The earthworms belong to the class Oligochaetae, which are known to live primarily in damp soils; few members live in fresh water and estuarine habitat. The leeches are the major member of the class Hirudinea (Bleidorn, 2009).

Item Type:	Book Section
Subjects:	Q Science > QR Microbiology
Divisions:	Faculty of Natural and Applied Sciences
Depositing User:	mrs chioma hannah
Date Deposited:	10 Nov 2025 11:00
Last Modified:	10 Nov 2025 11:00
URI:	http://eprints.gouni.edu.ng/id/eprint/5578

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