Scholarlink

<p>Potential fishing zone (PFZ)-associated environmental conditions along the West Bengal coast of the northern Bay of Bengal were assessed using integrated satellite-derived and in-situ environmental observations collected between January 2017 and March 2020. The study investigated spatial and seasonal variability in sea surface temperature (SST), chlorophyll-a concentration (CC), dissolved oxygen (DO), and turbidity across nine major coastal fish landing stations, including Digha Mohana, Old Digha, Shankarpur, Frezergunge, Petuaghat, Kakdwip, Sagar, Namkhana, and Diamond Harbour. Satellite-derived datasets obtained from MODIS-Aqua, VIIRS, ESA OC-CCI, and ERDDAP were combined with field-based water quality observations to evaluate environmental gradients associated with PFZ conditions. Principal Component Analysis (PCA), Spearman correlation analysis, and Kruskal_Wallis and Mann-Whitney U tests were applied to examine multivariate environmental relationships and seasonal variability. PCA revealed that the first two principal components explained 88.96% of the total environmental variability. Turbidity exhibited a strong negative association with dissolved oxygen and chlorophyll-a concentration, whereas SST showed a significant positive relationship with dissolved oxygen. Seasonal statistical analyses further demonstrated significant temporal variation in all environmental parameters across the study region (<i>p</i> &lt; 0.001). The integrated environmental analyses indicated that seasonal hydrographic variability, suspended sediment dynamics, and coastal productivity gradients strongly influenced PFZ-associated environmental conditions along the West Bengal coast. The study demonstrates that combining satellite-derived environmental variables with in-situ observations provides an effective framework for assessing environmentally favourable coastal conditions potentially associated with PFZ dynamics in monsoon-influenced tropical marine ecosystems which will benefit local fisherfolks for sustaining their economy.</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

Integrating Satellite Derived Environmental Variables with In-Situ Data to Identify Potential Fishing Zones in the Northern Bay of Bengal Along the West Bengal Coast, India

  • 期刊论文

  • 发表日期：

    2026年7月22日

查看全文
  • Avijit Kar,
  • Sourav Singh,
  • Niladri Mondal,
  • Bidhan Chandra Patra,
  • Jayanta Kumar Saha,
  • Dipak Bisai,
  • Biplab Mandal,
  • Sudipta Kumar Ghorai,
  • Ritam Sahu,
  • Deep Sankar Chini

摘要

Potential fishing zone (PFZ)-associated environmental conditions along the West Bengal coast of the northern Bay of Bengal were assessed using integrated satellite-derived and in-situ environmental observations collected between January 2017 and March 2020. The study investigated spatial and seasonal variability in sea surface temperature (SST), chlorophyll-a concentration (CC), dissolved oxygen (DO), and turbidity across nine major coastal fish landing stations, including Digha Mohana, Old Digha, Shankarpur, Frezergunge, Petuaghat, Kakdwip, Sagar, Namkhana, and Diamond Harbour. Satellite-derived datasets obtained from MODIS-Aqua, VIIRS, ESA OC-CCI, and ERDDAP were combined with field-based water quality observations to evaluate environmental gradients associated with PFZ conditions. Principal Component Analysis (PCA), Spearman correlation analysis, and Kruskal_Wallis and Mann-Whitney U tests were applied to examine multivariate environmental relationships and seasonal variability. PCA revealed that the first two principal components explained 88.96% of the total environmental variability. Turbidity exhibited a strong negative association with dissolved oxygen and chlorophyll-a concentration, whereas SST showed a significant positive relationship with dissolved oxygen. Seasonal statistical analyses further demonstrated significant temporal variation in all environmental parameters across the study region (p < 0.001). The integrated environmental analyses indicated that seasonal hydrographic variability, suspended sediment dynamics, and coastal productivity gradients strongly influenced PFZ-associated environmental conditions along the West Bengal coast. The study demonstrates that combining satellite-derived environmental variables with in-situ observations provides an effective framework for assessing environmentally favourable coastal conditions potentially associated with PFZ dynamics in monsoon-influenced tropical marine ecosystems which will benefit local fisherfolks for sustaining their economy.