A preliminary study on the structure of wild fish community in the upstream of Jinjiang River
Abstract：We carried 16 surveys of the wild fish community in the upstream of Jinjiang River in Enping from June to September, 2009. The 3 894 fish we captured belong to 49 species, 39 genus, 18 familia, 6 order, including 3 unknown species. The indexes of Margalef D（1） and D（B）, Shannon- WienerH（1） and H（B）, Simpson C（1） and C（B）, and Pielou J（1） and J（B） are 4.023 9 and 7. 601 4, 3.952 3 and 2. 401 9, 0. 705 1 and 0. 914 3 and 0. 331 3 and 0. 201 4 respectively. 15 species including Mastacembelus aculeatus, Pelteobagrus fulvidraco, Channa asiatica, Clarias batrachus, Culter alburnus , Symbranchi formes Monopterusalba （Zuiew）, Silurus asotus Linnaeus, Ophicephalus argus, Siniperca chuatsi （Basilewsky）, Siniperca scherzeri Steindacho, Micropterus salmoides, Misgurnus anguillieaudatu and so forth which take a percentage of 30.61% of the captured fishes are economical ; other 8 species, including Carassius auratus （Linnaeus）, Tilapia nilotica, Xenocypris argentea, Cyprinus carpio, Ctenopharyngodon idellus, Hypophthalmmichthy-srnolitrix, Aristichthys nobilis （Richardson）, Mylopharyngodon piceus, Cirrhinus molitorella and so on which take a percentage of 16. 32% are common economical; the else taking 53.06%, including 26 species and 2 known ones are non-economical. Among the Cypriniformes, Cyprinus carpio and Pseudolaubuca sinensis are dominant species （IRIS500） while Carassius auratus, Pseudoperilampus lighti Wu, P. engraulis, Squaliobarbus curriculus, Hemiculter bleekeri and Pseudoperilarnpus lighti are common ones ; as for the Perciforrnes, Oreochromis and Ctenogobius giurinus are dominant （IRI≥500） while Channa asiatica, Ophicephalus argus, Micropterus salmoides , Macropodus opercuiaris , Rhinogobius duospilus , Mugilogoblus myxodermus and Hypseleotris swinhonis are commone; and for the Cyprinodontirormes, Gambusra affinis and Clarias batrachus are dominant （IRI≥ 500） while Ymbranchiformes monopterusalba, Plecostous Punctatus and Silurus asotus are common. We expect that our surveys and analysis would provide scientific proof for the protection and the implementation of the fish resources in Jinjiang River in Enping.
Keywords：wild fish resourcescommunity structurespecies diversity
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 5-11 )