{"id":8734,"date":"2025-11-17T00:04:17","date_gmt":"2025-11-16T18:34:17","guid":{"rendered":"https:\/\/bijmrd.com\/?p=8734"},"modified":"2025-11-17T00:04:17","modified_gmt":"2025-11-16T18:34:17","slug":"spatial-patterns-of-small-indigenous-freshwater-fish-diversity-in-the-river-systems-of-west-bengal-india","status":"publish","type":"post","link":"https:\/\/bijmrd.com\/index.php\/volume3-issue10\/spatial-patterns-of-small-indigenous-freshwater-fish-diversity-in-the-river-systems-of-west-bengal-india\/","title":{"rendered":"Spatial Patterns of Small Indigenous Freshwater Fish Diversity in the River Systems of West Bengal, India"},"content":{"rendered":"\n

Author: Rahul Paik<\/strong><\/p>\n\n\n\n

DOI Link:<\/strong> <\/a>https:\/\/doi.org\/10.70798\/Bijmrd\/03100008<\/a><\/p>\n\n\n\n

Abstract:<\/strong> This study examined the spatial patterns of small indigenous freshwater fish (SIFF) diversity across major river systems of West Bengal. Field surveys were conducted between 2022 and 2024 across 12 representative districts covering the Ganges\u2013Hooghly, Bhagirathi\u2013Madhumati, Teesta, Damodar, and lower coastal river systems. Standardized multi-habitat sampling (cast netting, seine, electrofishing where permitted, and local fisher interviews) yielded 78 SIFF taxa belonging to 14 families. Species richness and diversity indices (Shannon\u2013Wiener H\u2032, Simpson D, Pielou\u2019s evenness J\u2032) were calculated for each district and river reach. Geospatial analysis using GIS and river-network based interpolation identified clear longitudinal and lateral gradients in diversity: headwater and midreach wetlands supported higher species richness and endemism, while lower reaches near urbanized and agricultural areas showed reduced diversity and altered community composition. Multivariate analyses (NMDS, cluster analysis, and redundancy analysis \u2014 RDA) revealed that habitat heterogeneity, water quality (dissolved oxygen, turbidity, conductivity), and land-use patterns were the principal correlates of SIFF diversity. The study concluded that conservation priorities should target midreach floodplain wetlands and less-disturbed tributaries; community-based management and restoration of riparian buffers were recommended. Findings were discussed in the context of regional conservation and fisheries management.<\/p>\n\n\n\n

Keywords:<\/strong> Small Indigenous Freshwater Fishes; West Bengal; River Systems; Biodiversity; Gis; Spatial Patterns; Shannon\u2013Wiener Index; Habitat Heterogeneity; Conservation.<\/p>\n\n\n\n

Page No: 61-71<\/strong><\/p>\n\n\n\n

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download journal<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Author: Rahul Paik DOI Link: https:\/\/doi.org\/10.70798\/Bijmrd\/03100008 Abstract: This study examined the spatial patterns of small indigenous freshwater fish (SIFF) diversity across major river systems of West Bengal. Field surveys were conducted between 2022 and 2024 across 12 representative districts covering the Ganges\u2013Hooghly, Bhagirathi\u2013Madhumati, Teesta, Damodar, and lower coastal river systems. Standardized multi-habitat sampling (cast netting, …<\/p>\n

Spatial Patterns of Small Indigenous Freshwater Fish Diversity in the River Systems of West Bengal, India<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":"","_joinchat":[]},"categories":[40],"tags":[],"rttpg_featured_image_url":null,"rttpg_author":{"display_name":false,"author_link":"https:\/\/bijmrd.com\/index.php\/author\/asraful-alibiswas\/"},"rttpg_comment":0,"rttpg_category":"Volume3 Issue10<\/a>","rttpg_excerpt":"Author: Rahul Paik DOI Link: https:\/\/doi.org\/10.70798\/Bijmrd\/03100008 Abstract: This study examined the spatial patterns of small indigenous freshwater fish (SIFF) diversity across major river systems of West Bengal. Field surveys were conducted between 2022 and 2024 across 12 representative districts covering the Ganges\u2013Hooghly, Bhagirathi\u2013Madhumati, Teesta, Damodar, and lower coastal river systems. Standardized multi-habitat sampling (cast netting,…","_links":{"self":[{"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/posts\/8734"}],"collection":[{"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/comments?post=8734"}],"version-history":[{"count":1,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/posts\/8734\/revisions"}],"predecessor-version":[{"id":8736,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/posts\/8734\/revisions\/8736"}],"wp:attachment":[{"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/media?parent=8734"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/categories?post=8734"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bijmrd.com\/index.php\/wp-json\/wp\/v2\/tags?post=8734"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}