ABSTRACT Since 1970, temperature increase of over 1ºC and reductions in rainfall of approximately 20% have been recorded in Ghana. The aim of the study was to contribute to the processes of adaptation planning to climate variability through the assessment of climate vulnerability in Akwidaa, Ghana. The methodology combined empirical historical data with active community participation and local knowledge. Historical climate data from 1970 to 2012 was collected from the Ghana Meteorological Ag...
ABSTRACT This study investigated the catch trends, spatial distributions, exploitation status, and reproductive potential of the sparids – Pagrus caeruleostictus, Dentex canariensis and Dentex gibbosus, in the coastal waters of Ghana. Samples of the species were obtained from commercial catches at Tema, Elmina and Sekondi from February 2016 to July 2017. Also used were secondary data from the Fisheries Scientific Survey Department and Fridtjof Nansen cruise reports. P. caeruleostictus was ...
ABSTRACT The environmental conditions, composition of benthic macrofauna, and richness, diversity, as well as food habits and aspects of reproductive biology of fish species in the Kakum Estuary wetland (located 2 km west of Cape Coast, Ghana) were studied from July 2009 to February 2010 in an effort to broaden our knowledge of the biodiversity and ecological value of wetland ecosystems. Sampling was conducted on five pools in the wetland. Oligochaeta and Diptera (chironomid larvae) were the ...
ABSTRACT The environmental conditions, composition of benthic macrofauna, and richness, diversity, as well as food habits and aspects of reproductive biology of fish species in the Kakum Estuary wetland (located 2 km west of Cape Coast, Ghana) were studied from July 2009 to February 2010 in an effort to broaden our knowledge of the biodiversity and ecological value of wetland ecosystems. Sampling was conducted on five pools in the wetland. Oligochaeta and Diptera (chironomid larvae) were the...
ABSTRACT This study focused on heavy metals and microbial pollution assessment of the Ankobra River in Ghana and evaluated their resultant toxic effects on humans and the aquatic environment referring to water and fish species (Clarias gariepinus, Sarotherodon melanotheron and Pseudotolithus brachygnathus). Atomic Absorption Spectrophotometry was used for the assessment of Cd, Pb, Ni, Zn, Mn, As, Hg, Co and Cr; while the Pour Plate Count Method was deployed for the study of the microbes E.col...
ABSTRACT The biology and population dynamics of the chub mackerel Scomber colias (Gmelin 1789), one of four small pelagic fish of high economic and nutritional value in Ghana waters, were studied from February 2016 to July 2017 to obtain information for management of its fishery. Total length of the fish in the artisanal landings ranged between 13.7 cm and 40.7 cm with two modal length classes. The von Bertalanffy growth parameters estimated using the ELEFAN method were L∞ = 42.5 cm TL and ...
ABSTRACT The ribbonfish, Trichiurus lepturus and golden African snapper, Lutjanus fulgens are actively and locally exploited by commercial fishers along the coast of Ghana. To bridge the knowledge gap on these species, size composition, growth and mortality as well as aspects of reproduction were assessed. Samples were collected from major fish landing sites along the coast of Ghana from September 2018 to August 2019. ...
Run-off containing a number of chemical solutions, which include herbicides, effluents, find their ways into the water bodies with a resultant negative effects on the aquatic ecosystem. This study sought to establish the effects of herbicide widely used in eradicating aquatic weed; Dizensate glyphosate (N- phosphonomethyl glycine) on Fingerlings of African catfish (Clarias gariepinus). The four day static bioassay was used to determine the median lethal concentration (LC50) and the value was ...
INTRODUCTION The beauty of agriculture is that every waste product from a sector can be recycled and used for the benefit of another sector, thereby leading to profit maximization and cost minimization. This can also be applicable in fisheries where aquaculture; which is the rearing or farming of economically important aquatic plants and animal in a confined environment is combined with any other form of agriculture like crop science, animal science, soil science amongst others which are cult...
CHAPTER ONE 1.0 INTRODUCTION 1.1 Background InformationFish is an important source of cheap first class protein, providing essential amino acids(Aremu et al., 2014), it is an indispensable source of micronutrients (Okonji et al., 2016) andother elements for the maintenance of healthy body (Ravichandran et al., 2012; Ehigiator etal., 2015). The results of a study conducted by Sipe (2008) have shown a positive correlationbetween the amounts of fish consumed and l...