Growth and Stomach Content of Pellonula leonensis from New Calabar River, Rivers State, Nigeria

Year : 2025 | Volume : 14 | Issue : 01 | Page : 14 18
    By

    Chukwu K.O,

  • Akpotaire F,

  1. Researcher, Department of Fisheries and Aquatic Environment, Rivers State University, Port Harcourt, , Nigeria
  2. Researcher, Department of Fisheries and Aquatic Environment, Rivers State University, Port Harcourt, , Nigeria

Abstract

The growth and food of Pellonula leonensis from the New Calabar River, Port Harcourt, Nigeria was studied, with the view of developing a proper feed that could meet the fish nutritional needs if reared in captivity. Analysis of growth using the length and weight measurements by applying regression analysis indicated that the fish had an allometric growth (2.6425 ± 0.078), and a condition factor of 0.8731. The fish’s food preferences were estimated using the frequency of occurrence and points methods. Analysis of food preferences (index of food significance (IFS)) was categorized in two groups, 5.9–7.5 cm and 8.0–9.0 cm, respectively. Temora sp (37.27%) was the most important food for smaller category while Penilia ovirrostris 23.09% was consumed most by the bigger group. The least important food for small and bigger groups were Podon polyphemoides and Temora sp, respectively. Paracyclops sp was part of the contents of the fish stomach. The study further revealed the percentage index of food significance for the stomach content as follows; Evadne nordmanni recorded a value of 16.38 for the small group and 22, 31 for the big group, while Penilia ovirrostris had a value of 25.05 and 23.09 for the small and bi categories, respectively. Podon polyphemoides had 7.22 for the small group and 18.90 for the big group. Figures recorded for the copepods showed that Paracyclops sp was 14.09 and Temora sp 37.26 for the small category while the values were 18.90 and 16.79, respectively, for the big group. In general, all the fish’s food was zoo planktons, as a result this fish may require a feed with high protein content if considered for aquaculture.

Keywords: Clupeids, length, weight, foods, feeding

[This article belongs to Research and Reviews : Journal of Veterinary Science and Technology ]

How to cite this article:
Chukwu K.O, Akpotaire F. Growth and Stomach Content of Pellonula leonensis from New Calabar River, Rivers State, Nigeria. Research and Reviews : Journal of Veterinary Science and Technology. 2025; 14(01):14-18.
How to cite this URL:
Chukwu K.O, Akpotaire F. Growth and Stomach Content of Pellonula leonensis from New Calabar River, Rivers State, Nigeria. Research and Reviews : Journal of Veterinary Science and Technology. 2025; 14(01):14-18. Available from: https://journals.stmjournals.com/rrjovst/article=2025/view=193474


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Regular Issue Subscription Original Research
Volume 14
Issue 01
Received 03/12/2024
Accepted 10/01/2025
Published 11/01/2025
Publication Time 39 Days
344

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