Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/217
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dc.contributor.authorAlhassan, E. H.-
dc.contributor.authorArmah, A. K.-
dc.date.accessioned2015-06-10T12:28:05Z-
dc.date.available2015-06-10T12:28:05Z-
dc.date.issued2011-
dc.identifier.issn1303-2712-
dc.identifier.urihttp://hdl.handle.net/123456789/217-
dc.description.abstractStudies were conducted on the growth and mortality parameters, recruitment pattern, probability of capture, yield-per recruit, and present rate of exploitation of the African river prawn, Macrobrachium vollenhovenii from Dawhenya impoundment, Ghana. Estimation of the von Bertalanffy growth parameters gave; L∞ = 14.2 cm, K = 1.0 yr-1, and to = -0.195 yr-1 with the growth performance index, Ф' of 2.303. From the linearised length-converted catch curve, total mortality, Z was 5.36 yr-1. Natural mortality, M calculated from Pauly’s empirical formula was 2.20 yr-1 and fishing mortality, F calculated from Z - M was 3.16 yr-1. From the mortality estimations, the present rate of exploitation, E calculated from F/Z was 0.59 indicating that, the species is on the verge of being over-exploited in the impoundment. Using the estimated value of the growth coefficient, K, the longevity was found to be about 3 yrs. Estimations from the probability of capture routines gave the length-at-first capture, Lc as 3.07 cm while the size distribution of the catches suggest two recruitment pulses in a year. It is therefore recommended that, the property right-based system for fisheries management should be implemented so that fishermen can cooperate in the management of the Macrobrachium fishery.en_US
dc.language.isoenen_US
dc.publisherTurkish Journal of Fisheries and Aquatic Sciencesen_US
dc.relation.ispartofseries11;-
dc.subjectgrowthen_US
dc.subjectmortalityen_US
dc.subjectexploitationen_US
dc.subjectrecruitmenten_US
dc.titlePOPULATION DYNAMICS OF THE AFRICAN RIVER PRAWN, MACROBRACHIUM VOLLENHOVENII, IN DAWHENYA IMPOUNDMENTen_US
dc.typeArticleen_US
Appears in Collections:Faculty of Natural Resource and Environment



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