The abiotic ecology of breeding ground of Palaemonid prawns in the Ilaje Estuary, Ondo State, Nigeria

Eniade, Abiodun Adeyemi and Bello-Olusoji, A. Oluayo (2011) The abiotic ecology of breeding ground of Palaemonid prawns in the Ilaje Estuary, Ondo State, Nigeria. Continental Journal of Fisheries and Aquatic Science , 5(1), pp. 31-37.

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Abstract

In situ ecological assessment of the breeding grounds of palaemonid prawns was conducted in some selected locations around Ondo state coastal area between the months of April and September. Data obtained were subjected to both descriptive and inferential statistics. Three species of Palaemonid prawns were identified in four different locations within the study area with relative abundance ratio of 4:3:1. Macrobrachium macrobrachion, Nematopalaemon hastatus and Palaemon maculatus respectively. Sex ratio of 1 male to 5 females for M. macrobrachion, and 1 male to 2 females for N. hastatus and P. maculatus were observed with result showing significant relationships (P < 0.05) in distribution patterns across collection sites. Population distribution within the water column showed that palaemons are sub-lithoral prawns inhabiting maximum mean depth of 0.67m ± 0.025. Surface macro-phytes such as Eichhornia crassipies, Paspalum vaginatum, and Pistia stratiotes are common providing hiding spots for the prawn at the breeding ground. The mean soil pH across the sites stands at 6.67± 0.399 with the soil textural class that range from silty-loam to silty-clay. Also, the water quality parameters of study areas suggest that captive culture and rearing of Palaemons may be feasible outside the breeding areas.

Item Type: Article
Title: The abiotic ecology of breeding ground of Palaemonid prawns in the Ilaje Estuary, Ondo State, Nigeria
Personal Creator/Author:
CreatorsEmail
Eniade, Abiodun Adeyemi
Bello-Olusoji, A. Oluayo
Refereed: Yes
Journal or Publication Title: Continental Journal of Fisheries and Aquatic Science
Volume: 5
Number: 1
Page Range: pp. 31-37
Date: 2011
ISSN: 2141-4246
Contact Email Address: managingeditor.olawale71@gmail.com
Issuing Agency: Wilolud Journals
Uncontrolled Keywords: Palaemonid prawns; breeding grounds; Macrobrachium macrobrachion; Nematopalaemon hastatus; Palaemon maculatus; sub-littoral
Subjects: Aquaculture
Item ID: 7317
Depositing User: Mr Francis Abulude
Date Deposited: 08 Dec 2011 10:05
Last Modified: 14 Feb 2013 10:57
Related URLs:
URI: http://aquaticcommons.org/id/eprint/7317

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