Scholarlink

<p>This study investigates the seasonal dynamics of phytoplankton and zooplankton diversity in the Batapady mangrove estuary, southwest India, from October 2023 to June 2024. Monthly sampling across five stations captured variations in environmental parameters (temperature, salinity, pH, dissolved oxygen, biological oxygen demand, and nutrients) and plankton community metrics. A total of 21 phytoplankton and 11 zooplankton genera were identified, with Bacillariophyceae and Copepoda as dominant groups, respectively. Diversity indices Shannon–Wiener (H′), Margalef’s richness (d), and Pielou’s evenness (J′) peaked in March, corresponding to stable hydrographic conditions and nutrient availability. Redundancy Analysis (RDA) revealed that plankton communities respond linearly to environmental forcing, with Water Temperature and Salinity identified as the primary active drivers of succession. While phytoplankton dynamics were strongly coupled with hydrography (Adj. R<sup>2</sup> = 0.147), zooplankton exhibited weaker abiotic associations (Adj. R<sup>2</sup> = -0.022), suggesting the influence of unmeasured biotic interactions. The findings suggest seasonal hydrography, particularly salinity and nutrient dynamics appear to influence plankton succession patterns in this estuarine ecosystem. This work highlights the ecological significance of mangrove-estuarine interfaces and advocates plankton-based monitoring for establishing ecological baselines in tropical coastal waters.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Seasonal plankton diversity and multivariate environmental correlates in the Batapady mangrove ecosystem, Karnataka, India

  • 期刊论文

  • 发表日期：

    2026年1月8日

查看全文
  • Prabhutva Chaturvedi,
  • Terakanambi S. Annappaswamy,
  • Binal R. Khalasi,
  • Kundapura U. Sheethal,
  • Ajith Keshava

摘要

This study investigates the seasonal dynamics of phytoplankton and zooplankton diversity in the Batapady mangrove estuary, southwest India, from October 2023 to June 2024. Monthly sampling across five stations captured variations in environmental parameters (temperature, salinity, pH, dissolved oxygen, biological oxygen demand, and nutrients) and plankton community metrics. A total of 21 phytoplankton and 11 zooplankton genera were identified, with Bacillariophyceae and Copepoda as dominant groups, respectively. Diversity indices Shannon–Wiener (H′), Margalef’s richness (d), and Pielou’s evenness (J′) peaked in March, corresponding to stable hydrographic conditions and nutrient availability. Redundancy Analysis (RDA) revealed that plankton communities respond linearly to environmental forcing, with Water Temperature and Salinity identified as the primary active drivers of succession. While phytoplankton dynamics were strongly coupled with hydrography (Adj. R2 = 0.147), zooplankton exhibited weaker abiotic associations (Adj. R2 = -0.022), suggesting the influence of unmeasured biotic interactions. The findings suggest seasonal hydrography, particularly salinity and nutrient dynamics appear to influence plankton succession patterns in this estuarine ecosystem. This work highlights the ecological significance of mangrove-estuarine interfaces and advocates plankton-based monitoring for establishing ecological baselines in tropical coastal waters.