Data/hora: 13/06/2024 04:59:22

Provedor de dados: 	Ocean Docs: e-repository of  publications	
País: 	Belgium	
Título: 	Relação entre o ciclo da maré e rendimentos de Thryssa vitrirostris (Ocar de cristal), Sillago sihama (Pescadinha comum) e Sardinela albella capturados por arrasto a praia no distrito de Angoche, norte de Moçambique	
Autores: 	CAVARIATO, Ernesto Casimiro; MUALEQUE, Daniel Oliveira.	
Data: 	2014-02-23	
Ano: 	2013	
Palavras-chave: 	Beach seines; Ichthyofauna; Tides.	
Resumo: 	The present study aims, analyze the influence of the tide on the engraulids catches in fishing of beach-seine in Angoche, northern Mozambique. Data sampling of this fishery in Angoche district from 2004 to 2009 available in the database, Pescart for that district were used. The catch data (Kg) and catch rates (CPUE) were processed in the database and organized by type of tide (alive and dead). The proportions (weight) of the species composition and average size of species caught were compared by tide type tide. T-Test was used to check whether there are differences in CPUE's and medium sizes depending on the tides of three species, Thryssa vitrirostris, Sillago sihama and Sardinella albella. Results show that there are significant differences in catch rates (CPUE) between the dead and alive tide (t = - 4.89, p = 0.002). Significant results were also found for the medium sizes of the Sardinella albella between the two tides (t = 1.9142 and p = 0,0409). For the species Thryssa vitrirostris and Sillago sihama, the t-test showed no differences exist of sizes caught between the dead and alive tide (t = -0,0160 and p = 0,4938) and (t = - 0.6464 and p = 0, 2656), respectively. It is suggested that future studies of this nature have in consideration the tide level, phases of the moon and factor day and night. However, the present study can be used for technical advice to fishermen that the alive tide, in accordance with the results can be favourable for fishing.	
Tipo: 	Journal Contribution	
Idioma: 	Português	
Identificador: 	Revista Moçambicana de Investigação Pesqueira (34), p. 2-13

http://hdl.handle.net/1834/5298	
Fonte: 	Copyright owned by the Instituto Nacional de Investigação Pesqueira, who gave permission for the submission.

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