Length-Weight and Girth Relationship, Condition Factor and Stomach Contents of Pila Ovata From Otuoke/Otuaba River, Bayelsa State, Nigeria


Year : 2025 | Volume : 2 | 01 | Page : –
    By

    Babu-Davies O.A,

  • Ogidiaka-Obende, E,

  • Oyovwi, T.,

  1. Student, Department of Fisheries and Aquatic Environment, Rivers State University, Port Harcourt, , Nigeria.
  2. Student, Department of Marine Science, Faculty of Science, University of Delta, Agbor, Delta, Nigeria.
  3. Student, 3Department of Biology, Federal University, Otuoke, Bayelsa, Nigeria.

Abstract

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Otuoke/Otuaba River situated in Otuoke, Bayelsa State, Nigeria serves numerous purposes such as fishing, laundry, human feacal disposal, amongst others. The river is home to Pila  ovata a mollusc which serves as a special delicacy in the meals of most Bayelsan due to its high protein content. The length-weight and girth relationship, condition factor and stomach contents of P. Ovata (Apple snail) from Otuoke/Otuaba River was studied. Snail samples were collected manually (handpicking) for a period of 5 weeks (May-June 2021). A total of 500 apple snails of varying sizes were analyzed. Results revealed negative allometric growth pattern for various relationships including; length – weight relationship, shell length and shell width relationship, spiral length weight relationship, base length and weight relationship of P. ovata indicating a sigmoid growth pattern, slowing down after 5 weeks of life. The mean daily growth rates for all four subspecies ranged from 0.21-0.25 mm/day in the first 5 weeks, decreasing to 0.11-0.13 mm/day thereafter. The overall mean condition factor (0.02554) indicated that P. ovata were in good condition. Notably, the condition factor exceeded 1 during May and June, suggesting optimal health. Further research is necessary to fully understand the growth patterns and condition of P. ovata, as this study was limited to 5 weeks. In addition, urgent steps should be taken in the right direction to reduce the pollution load that has plagued the environment which this priced species thrive to avoid extinction.

Keywords: Growth pattern, wellbeing, food and feeding habit, Pila ovata, Otuoke/Otuaba River

How to cite this article:
Babu-Davies O.A, Ogidiaka-Obende, E, Oyovwi, T.. Length-Weight and Girth Relationship, Condition Factor and Stomach Contents of Pila Ovata From Otuoke/Otuaba River, Bayelsa State, Nigeria. International Journal of Marine Life. 2025; 02(01):-.
How to cite this URL:
Babu-Davies O.A, Ogidiaka-Obende, E, Oyovwi, T.. Length-Weight and Girth Relationship, Condition Factor and Stomach Contents of Pila Ovata From Otuoke/Otuaba River, Bayelsa State, Nigeria. International Journal of Marine Life. 2025; 02(01):-. Available from: https://journals.stmjournals.com/ijml/article=2025/view=0


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Ahead of Print Subscription Original Research
Volume 02
01
Received 29/01/2025
Accepted 21/02/2025
Published 07/03/2025
Publication Time 37 Days
176

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