Mari Culture and Marine Fisheries Resources
Ajah, P.O. (2002). Seasonal and tidal influence on nutrient and plankton dynamics in the Great Kwa River, Nigeria. Indian Hydrobiology, 5(1): 25-37.
Ajah, P.O. (2002). Fisheries biodiversity and plankton community of the Great Kwa River, Nigeria. Indian Hydrobiology, 5(2): 85-96.
Ajah, P.O. and F.K.E. Nunoo (2003). The effects of four preservation methods on length, weight and condition factor of Clupeid Sardinella aurita Val. 1847. Journal of Applied Ichthyology,19: 1-3.
Madubuike, F.N, Ojimelukwe P.C, and P.O. Ajah (1994). Proximate composition, energy content and physiochemical properties of Afzelia africana and Brachystegia eurycoma seeds. Plant Foods Hum. Nutr., 46(3): 339-44.
Obiekezie, A.I. and P.O. Ajah (1994). Chemotherapy of Macrogyrodactylosis in the culture of African clariid catfish: Clarias gariepinus and Heterobranchus longifilis. J. Aqua. in the Tropics, 9: 187-192.
Ajah, P.O. and S. Holzlöhner (1996). The use of low cost organic manure in mass-producing zooplankton. In: Future trends in Aquaculture development in Eastern Europe. Handbook of short communications and National Reports, Budapest, Hungary, September 1-5, 1996, 3-4p.
Ajah, P.O. (1997). Effects of live foods, artificial feed and their combinations on growth and survival of African clariid catfish (Heterobranchus longilis Val. 1840). The Israeli J. of Aquaculture, Bamidgeh, 49 (4): 205-213.
Ajah, P.O. and F.N. Madubuike (1997). The proximate composition of some tropical legume seeds grown in two states in Nigeria. J. Food Chemistry, 59 (3): 361-365.
Ajah P.O. (2008). Growth Characteristics of the Monogonont Rotifer Asplanchna priodonta Gosse 1850 on Three Algae Species: Turkish Journal of Fisheries and Aquatic Sciences 8: 275-282 (2008).
Ajah, P. O., M. N. Georgewill and M. O. Ajah (2006). The food and feeding habits of five freshwater and brackish water fishes in Nigeria. African Journal of Aquatic Science, 31(2): 313-318.
Ajah, P.O. (2010). Prey selection and predation behaviour of Heterobranchus longifilis Val. (1840) larvae during first exogenous feeding, African Journal of Food Science, 4(3): 73-79.
Ajah, P. O. (2010). Mass culture of Rotifera (Brachionus quadridentatus [Hermann, 1783]) using three different algal species, African Journal of Food Science, 4(3): 80-85.
Ajah, P. O. and M. U. Eteng (2010). Phytochemical screening and histopathological effects of single acute dose administration of Artemisia annua L. on testes and ovaries of Wistar rats. African Journal of Biochemistry Research, 4 (7): 179-185.
Bassey, A.U. and P.O. Ajah (2010). Effect of three feeding regimes on growth, condition factor and food conversion rate of pond cultured Parachanna obscura (Gunther, 1861) (Channidae) in Calabar, Nigeria. Turkish Journal of Fisheries and Aquatic Sciences, 10: 195-202.
Ajah, P.O. (2013). The Limnology of Ohana Lake, a Potential Manmade Aquaculture System in Nigeria. Open Journal of Applied Sciences, (OJAppS) 2013, 3, 232-246.
Ajah, P.O (2017). “Effect of Intensifying Stocking Densities, Proper Feed Management Techniques on Production of Clarias Gariepinus (Burchell, 1822) In Earthen Ponds In Nigeria.” International Journal of Engineering Science Invention (IJESI). 6(6): 65-70.
Ajah, P.O. and P. E. Asuquo (2017). Sex ratio, length-weight relationship and condition factor of Ethmalosa fimbriata in the Cross River Estuary, Nigeria. IOSR- JBB Journals.- J. of Biotechnology and Biochemistry, 3(2): 46-55.
Ajah, P. O. and P. E. Asuquo (2017). Catch rate of Artisanal Fisheries, percentage abundance and species composition ? in Akpayafe River in Bakassi Local Government Area, Cross River, Nigeria. Journal of Environmental Science, Toxicology and Food Technology (IOSR JESTFT Journals). 11(5)(1): 52-56.
Ajah P.O., Ukutt, E.R. (2018). The effect of water soluble fraction of crude oil on the biochemical, hematological and enzymological changes in fed and starved clariid catfish juveniles. International Journal of Scientific and Engineering Research (IJSER), 9(4): (Accepted April 2018).
Ajah, P.O., R. Rahe and U. K. Enyenihi (1997). The establishment of axenic algae culture as a starting point for tropical Hatchery food chain in catfish production. In: 1997 FISON Proceedings.
Ajah, P.O. and P.E. Asuquo (2018). Proximate, mineral and amino acids compositions of Arachis hypogaea L. cake application in fish feed formulation. International Journal of Scientific and Engineering Research (IJSER), 9(4):(Accepted April 2018).
Ajah P.O., Ukutt, E.R. (2018). The in vitro effect of water soluble fraction of crude oil on the biochemical, hematological and enzymological parameters of clariid catfish juveniles and sub adults. International Journal of Scientific and Engineering Research (IJSER), 9(4): (Accepted April 2018).
Ajah, P.O. (1998). A comparison of growth and survival of Heterobranchus longifilis larvae fed on Artemia nauplii and nine non-Artemia live diets. J. Tropical Freshwater Biology, 7: 1-15.
Ajah, P.O. (2002). Seasonal and tidal influence on nutrient dynamics and plankton cycles in an oligotrophic water-the Great Kwa River, Nigeria. Roan-The journal of conservation, 1(1): 54-79.
Ajah, P.O. and M.O. Ajah (2005). Large scale timely harvesting of zooplankton using two culture systems. Afr. J. Environ. Pollut. Health 3(2): 48-54.
Ajah, P.O., T.J. Okon and J.D. Ditmer (2005). Distribution of meso-zooplankton along the salinity gradients of Calabar and Cross Rivers, Nigeria. Afr. J. Environ. Pollut. Health 3(2): 55-62.
Ajah, P.O. and U.K. Enyenihi (2007). Phytoplankton as rich food for Oreochromis niloticus (linn.) In Nigeria. Tropical Freshwater Biology, 16(1): 89- 98.
Edema, C. U., Ojeh, P. A., Chukwu, E. I., Ajah, P. O., Ama-Abasi, D. A., et al. (2007b). A study of ratio of intestine length to body length in fish species from Okhuo River, Nigeria. In ‘Proceedings of the 22nd Annual Conference of the Fisheries Society of Nigeria’. (Eds P. A. Araoye, I. A. Adikwu and R. O. Banke.) pp. 112–116. (Fisheries Society of Nigeria: Ilorin.).
Ajah, P.O., N.O.Henshaw, M.O. Ajah and N.M. Essien (2009). The biochemical contents of some locally available and cheap sources of livestock protein feeds; soybeans (Glycine max), guinea corn (Sorghum bicolor), coconut (Cocos nucifera), water lily (Nymphaea odorata) and duckweed (Lemna minor) in Calabar-Nigeria. Journal of Sustainable Tropical Agricultural Research,(JoSTAR) 30: 11-16.
Ajah, P.O. (2012). Food and feeding habits of four selected fish species in Cross River Estuary, Nigeria. Tropical Freshwater Biology, 21 (2): 25 – 40 P.O. Ajah and S.A. Udoh (2012). Food and feeding habits, condition factor and length-weight relationships of Mugil cephalus and Pseudotolithus elongatus in Cross River Estuary, Cross River State, Nigeria. Tropical Freshwater Biology, 21 (2): 59 – 70.
Ajah, P.O. 2007. Fish Breeding and Hatchery Management. Jerry Comm. Pub. Calabar-Lagos178 pp. ISBN: 978-071-574-6.
Ajah, P.O. 2006. Environmental Conservation and Ecological Foundation. Jerry Comm. Pub. Calabar-Lagos, 336pp, ISBN: 978-071-575-4.
Ajah, P.O. (1998). The need for Breast-feeding in contemporary Nigerian Society. In: Revelations in Child Upbringing C.C. Okereke (Ed.), Eagle and Joy Publishers, Nigeria, 31-53pp. (Nigeria).
Ajah, P.O. (1998).Introduction to Revelations in Child Upbringing C.C. Okereke (Ed.), Eagle and Joy Publishers, Nigeria, 1-3pp. (Nigeria).
Ajah, P.O. 2005. Preliminary Evaluation of the limnology of Ohana Lake in Obubra Local Government Area in Cross River State, Nigeria. FAO Technical Report. 44pp.
Ajah, P.O. 2006. Hydrobiology/Fisheries of PHCN Newly Proposed Power Line. Technical Report Submitted to Qualicon Nig. Ltd. 22pp.
Ajah, P.O. 2006. Hydrobiology/Fisheries of IBAD Farms. Wet Season Technical Report Submitted to Qualicon Nig. Ltd. 22pp.
Ajah, P.O. 2006. Hydrobiology/Fisheries of IBAD Farms. Dry Season Technical Report Submitted to Qualicon Nig. Ltd. 24pp.