International Journal of Marine Science 2016, Vol.6, No.27, 1-22
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artisanal fishers within the Teshie community for landing of their catch and the fishmongers who come there
purposely to buy catch from the fishers.
The Tema Inshore fishing harbour is located within the Tema Inner fishing harbour, which provides a holding
facility for semi-industrial and industrial fishing vessels (Figure 1). It is located at Latitude 05
o
38.264”N,
Longitude 000
o
00.595”E.
Figure 1: Map showing locations of study areas in Ghana
2.3 Biological/Physico-chemical data collection and laboratory procedures
2.3.1 Fish species composition
Monthly fish samples were collected from the artisanal fishery and semi-industrial fishery from January to
December, 2013. A standard sample of one bucket, weighing an average of 8 kg when full, was taken from total
fish caught in one haul by the artisanal fishery in Teshie and total fish landed by the semi-industrial fishery in
Tema respectively before sorting by fishermen. The sample taken was then weighed in kg using a field hand scale
KERN CH15K20, and kept on ice for about an hour of transportation to the laboratory. Samples were immediately
identified, enumerated and weighed or otherwise kept in a deep freezer and analysed within 48 hours.
In the laboratory, fish species were sorted out and identification made to the lowest taxonomic level as much as
possible using fish identification guides (Schneider, 1990; Kwei and Ofori-Adu, 2005). The weight of all
individual fish species was taken using a PHILLIP HARRIS A20002 weighing scale in grams to two (2) decimal
