Droussi, Mohammed

Farid, Sana

Guerriero, Giulia

Hasnaoui, Mustapha

Ouizgane, Anouar

Zahra Majdoubi, Fatima

Water temperature influences the life of species in aquatic ecosystems. Our study was carried out in Deroua Fish farm hatchery (Fkih
Ben Salah, Morocco) to assess the effect of climate change effects on predation activity and growth of largemouth bass, Micropterus
salmoides. It was conducted in six circular tanks (1.5m3) each one receives five specimens of largemouth bass with a weight ranging
from 64g to 185g. To carry out this experience we choose two different ranges of water temperature. The first range was water natural
temperature; the second range was thermo-regulated by using an electric heating system. The largemouth daily consumption of prey
is 5.1% per day of its fresh weight at a temperature range of 16-18°C and 8.7% per day of its fresh weight at a temperature range
of 21‑24°C. The duration consumption of the same quantity of prey at the temperature range of 21-24°C it is twice more than at a
temperature range of 16-18°C but the daily mean growth rate of largemouth bass at a temperature range of 16-18°C is 0.935g/day, while
it reaches 2.11g/day at a temperature range of 21-24°C. Fish farm approach following the waters variations demonstrated an increase
of the amount of final product of largemouth bass, highlighting the prediction of long-term specie-specific responses to climate change

Anouar Ouizgane

Sana Farid

Fatima Zahra Majdoubi

Mohammed Droussi

Giulia Guerriero

Mustapha Hasnaoui

Archivio della ricerca - Università degli studi di Napoli Federico II

Assessment of climate change effects on predation activity and growth of largemouth bass, Micropterus salmoides (Lacepède, 1802) by water temperature variations.

https://www.iris.unina.it/retrieve/handle/11588/720514/200214/coll_Morocco.pdf

Assessment of climate change effects on predation activity and growth of largemouth bass, Micropterus salmoides (Lacepède, 1802) by water temperature variations.

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Archivio della ricerca - Università degli studi di Napoli Federico II