IJMS_2024v14n2

International Journal of Marine Science, 2024, Vol.14, No.2, 134-154 http://www.aquapublisher.com/index.php/ijms 140 captured. The second is a buffer zone which is located south of the Village of Ampasimangidy (Figure 7) and where all destructive fishing techniques and gear are prohibited. Figure 7 Fishing zones of Nosy Ankao After the geographic description, the fishing zone environmental parameters are reported in the following section. 2 Description of Environmental Parameters The environmental parameters of fishing zones geographically defined previously are studied in this section. 2.1 Climatology The climatology of fishery resources study was carried out in the Loky-Manambato MPA. According to the climate classification, the considered area one is classified as a savannah climate with dry winter and known to be tropical. There are two alternating seasons, that is to say the cooler and drier season which extends from the beginning of May until the end of October and a hot and humid season (with a lot of rain) from the beginning of November until the end of April. It should also be noted that climate is a primordial factor which conditions the existence of resources and their distribution. 2.2 Temperature The thermal regime of the Madagascar northeast region is governed by the alternation of these two seasons. The temperatures denoted by T vary from 19.5 °C to 31.5 °C (Figure 8). The lowest temperature value is recorded in the month of July (cool season) while the highest value is observed in the month of December (hot season). However, the average temperature of Ampisikinana varies from 27.3 °C to 23.8 °C. In February, the average temperature is 27.3 °C. This means that February is the hottest month of the year. And the month of July is the coldest month of the year with an average temperature of 23.8 °C. 2.3 Pluviometry The Atmospheric precipitation appears in the form of water drops. The latter result from the rise of air caused by water vapor and as they cool, these water drops fall back. In the present study area, the rainy season begins in November and ends around April, often accompanied by a major storm (Climate Data, 2021). In a year, the average precipitation is 112.75 mm. Precipitation ranges from 245 mm to 37 mm. The lowest value of precipitation is recorded in the month of September while the highest value is observed in the month of January (Figure 9).

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