Name: Lazaro Dias Alves
Type: MSc dissertation
Publication date: 19/03/2021
Advisor:

Namesort descending Role
Camilah Antunes Zappes Advisor *

Examining board:

Namesort descending Role
Camilah Antunes Zappes Advisor *
Eberval Marchioro External Examiner *
Jacqueline Albino Internal Examiner *

Summary: Artisanal marine fishing is an activity that depends essentially on good oceanographic conditions (waves and tides) and meteorological conditions (winds) to be practiced, ensuring the capture of the fish and the safety of the worker. Artisanal fishermen observe local oceanographic and meteorological conditions daily, making forecasts that condition the activity. In Farol de São Thomé, municipality of Campos dos Goytacazes, north coast of the state of Rio de Janeiro, oceanographic and meteorological conditions interfere with the performance of fishing activity and, therefore, artisanal fishermen in this region need to know the environmental conditions to ensure the success of the fishery and the safe return to the continent. Therewith, the services offered by the meteorological organs are essential to ensure safe conditions fishing for those involved. However, it is necessary to formulate specific public policies that transpose these services at an accessible level to fishing communities, which in general have a low educational level. In this sense, the objective of the study is to characterize the ethnooceanographic knowledge of artisanal fishermen on marine meteorology; and to propose subsidies for the better use of meteorological services in the fishing sector. The informations was obtained through 160 interviews guided by a semi-structured questionnaire in two stages of the field (October-November 2016 and June-August 2018). The data from the first stage were left over from a previous study. Artisanal fishermen perform predictions for three main marine variables (winds, waves and tides), as they directly interfere with boarding performance. Predictions prepared through ethnooceanographic knowledge (100%; n = 80) were correlated with forecasts from meteorological organs to identify convergences and divergences between them. The predictions related to ‘wind intensity’ were concordant in 58.7% (n = 47) and discordant in 41.3% (n = 33) of the interviews. The predictions related to ‘wave height’ were in concordant at 42.5% (n = 34) and discordant at 57.5% (n = 46). The predictions related to 'height of the tides' were in concordant in 82.5% (n = 66) and in discordant in 17.5% (n = 14). Tides are classified into 8 groups according to ethnooceanographic knowledge: 1) Living tides; 2) Dead tides; 3) Breaking tides; 4) Launch tides; 5) High tides; 6) Dry tides; 7) Tides of pardo and 8) Tides of padejar. In days when the wave height varied from 0.6 m to 0.7 m, few vessels (n = 12) were moored. On days that wave height varied from 1.2 m to 2.1 m, many (n = 113) vessels were moored, mainly smaller vessels (up to 10 m). The implementation of an accessible dissemination channel of the meteorologic predictions provided by the main organs, can act to minimize the risks to which artisanal fishermen are submitted during boarding.

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