Population Dynamics of Important Fishes in the Vindhyan Region, India (häftad)
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Format
Häftad (Paperback)
Språk
Engelska
Antal sidor
228
Utgivningsdatum
2010-10-12
Förlag
LAP Lambert Academic Publishing AG & Co KG
Medarbetare
Nautiyal, Prakash
Illustrationer
black & white illustrations
Antal komponenter
1
Komponenter
Paperback
ISBN
9783843353656
Population Dynamics of Important Fishes in the Vindhyan Region, India (häftad)

Population Dynamics of Important Fishes in the Vindhyan Region, India

Status and structure of commercial fishes in the Vindhyan river

Häftad Engelska, 2010-10-12
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L was maximum in L. rohita and minimum in L. calbasu. Total mortality (Z) of L. rohita was higher in the Tons (4.19 yr-1) compared with the Ken (3.2 yr-1) and the Paisuni R. (3.67 yr-1). In case of T. tor higher mortality occurred in the Paisuni (5.57 yr-1) compared with Tons (4.28 yr-1) and Ken R. (4.08 yr-1). In case of L. calbasu it was same in the Paisuni (1.86 yr-1) and Tons (1.86 yr-1) and lower in the Ken R. (0.98 yr-1). The exploitation rate (E) and ratio (U) was higher in case of L. rohita in the Ken (0.77, 0.74) compared with the Paisuni (0.74, 0.72) and the Tons R. (0.56, 0.55). E and U for T. tor were higher in the Paisuni (0.82, 0.81) compared with Tons (0.80, 0.79) and Ken (0.71, 0.70). In case of L. calbasu also E and U were higher in the Paisuni (0.65, 0.55) compared with Tons (0.63, 0.53) and the Ken (0.52, 0.32). L. rohita was highly over exploited in the Ken and Paisuni R., T. tor in all these rivers and L. calbasu in the Paisuni and Tons R. being optimum in the Ken R. Among these three species E and U were higher for T. tor all in the rivers.
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