Name: Halysson Pena Ribeiro
Type: MSc dissertation
Publication date: 13/09/2017
Advisor:

Namesort descending Role
Maurício Hostim Silva Advisor *

Examining board:

Namesort descending Role
Eduardo Gomes Sanches External Examiner *
Luiz Fernando Loureiro Fernandes Internal Examiner *
Maurício Hostim Silva Advisor *

Summary: Mugilidae family has a wide geographic distribution, in tropical and subtropical waters around the world, especially in coastal regions. It is an important fishing resource, responsible for sustainability of many families along the Brazilian coast. As an euryhaline fish it can live at freshwater, brackish or salt water. One of the most important characteristics of this group of fish is their ability to have a varied diet being scavengers, herbivores and omnivores, depending on the stage of the life cycle and biodiversity in food chain of the environment. This study aims to evaluate the production performance of tainhas Mugil liza in growing conditions of marine salinity, using different feeding frequencies. It will be three treatments in triplicates in the fish population density of 0.25 / l, with 30 fish per tank. The treatments are: Treatment 1, feed once a day (at 8:00); 2 treatment, feeding twice a day (8:00 and 16:00); Treatment 3, four times a day (8:00, 11:00, 14:00 and 17:00). They will be evaluated biomass gain, specific growth rate, survival, condition factor, and the total biomass. At the end of the experiment will be analyzed the content of fatty acids in food and fish in the different treatments.

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