The population dynamics of Enhalus acoroides in the coastal waters of Waai Village, Central Maluku District, Indonesia

Rijal, M. (2020) The population dynamics of Enhalus acoroides in the coastal waters of Waai Village, Central Maluku District, Indonesia. AACL Bioflux, 13 (5). pp. 3135-3143.

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Abstract

The coastal waters of Waai village contain seagrass ecosystems. Visually, these waters substrate consist of sandy, muddy, rocky and dead coral reefs substrates, allowing them to be overgrown by different types of seagrass. This research aimed to obtain information about the population dynamics of Enhalus acoroides covering age (cohorts), rhizome growth rate, mortality rate, the recruitment rate and the physical-chemical conditions of the coastal waters of Waai village. The results of this research showed that the population of E. acoroides in the sampling period I consisted of 7 cohorts, whereas in the sampling period II and III, each consisted of 8 cohorts. The estimation of the growth rate was 0.01 mm year-1 with a maximum length of 28.773 mm and the asimptot length 31.97 mm. The estimation of the mortality rate of E. acoroides ranged from from 0.04-0.06 year-1 with a mean of 0.05 year-1. The highest recruitment rate was of 1,087.81 stands year-1 and occurred in August with a frequency of 30.05%, while the lowest recruitment rate was of 44.16 stands year-1 which occurred in January with a frequency of 1.22%. Seagrass growth in the coastal waters of Waai Village is facilitated by the environmental conditions, with the following values: maximum percentage of very coarse sand grains (30.70%); average temperature of 28.300C; average salinity value of 28.67‰; average dissolved oxygen value of 5.71 ppm; average nitrate content value of 0.94 ppm and average phosphate content value of 0.53 ppm.

Item Type:	Article
Subjects:	Pendidikan Biologi Penelitian Dosen
Divisions:	Jurnal
Depositing User:	Usemahu Abdullah
Date Deposited:	31 May 2022 05:13
Last Modified:	31 May 2022 05:13
URI:	http://repository.iainambon.ac.id/id/eprint/2315

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