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Ama-Abasi

 

 

1.   Name of Staff:                  Daniel Ama-Abasi

 

2.   Unit of the Institute:       Marine Biology

 

3.   Present Status:                 Senior Research Fellow

 

4.   Department/Unit:            Biological Oceanography

 

5.   Contact Details:                             

                 Institute of Oceanography,

                 University of Calabar, PMB 1115, Calabar,  

                 Cross River State, Nigeria;

            E- mail:  amaabasi2@yahoo.com.

            Mobile phone:   +2348037416883

 

   

6.   Education:

·         B.Sc. (HonS) Zoology, University of Calabar, 1985.

·         M.Sc. Fisheries & Aquaculture, University of Calabar, 1995.

·         Ph.D. Fisheries & Aquaculture, University of Calabar, Calabar, 2002.

·         Ohio Programme of Intensive English, Ohio University, Athens, Ohio, USA.

·         Visiting Scholar, University of Massachusetts, Amherst, Massachusetts, USA.

·         Visiting Scholar, University of Uyo, Uyo.

 

7.   Research Interests:

·         Fish Diseases: Protozoan fish diseases, Fish helminthiasis , 

·         Fisheries Biology & Management: Assessment of Stock status of commercially important fish species in the Cross River Estuary and adjacent coastal waters; Reproductive biology of commercially important fish species; Food and Feeding habit  of  fish species of the Cross River system; Migration of   fishes in and out of the Cross River estuary; sexual dimorphism in fish species in the Cross River system.

·         Aquatic pollution and its impact on aquatic species: assessment of toxic elements pollutions of marine environments using some aquatic organisms.

·         Fish biodiversity: Fish species composition and catch rates in the Cross River system

 

8.   Current Research

·         Fish Reproductive Biology & Recruitment in the Cross River Estuary.

·         Aquatic pollution and Assessment

·         Sustainable Development of Small-Scale Fisheries.

 

9.   Graduate Student Supervision

·         The prevalence e and pathology of nematode infection in Parachanna obscura of the Cross River system; Oden, Esther Michael (PhD Student). Research completed

·         An evaluation of the Pollution status of the coastal waters of Calabar River, Nigeria- Showell, Jack.  On-going PhD

·         Growth Response and haematological characteristics of Clarias gariepinus fingerlings reared at different stocking densities. Etangetuk, NseAbasi.  Ongoing M.Sc.work.

 

10.  Honours and Awards

·         Fulbright Junior Scholar Fellowship, University of Massachusetts, Amherst, USA.

·         Two times Grantee of International Foundation for Science, Stockholm, Sweden.

·         Book Donations from World Aquaculture Society.

·          Two times Grantee of University of Calabar Research Grants.

·         Top 25 Papers Award by Science Direct.

·         Inclusion of publication in  ASFA Abstract Indexing.

 

11.  Courses Taught

·         Fish Diseases and Histopathology; Marine Zoogeography; Marine Ecology; Marine Fisheries Resources and Management; Fish population Biology; Marine Biology Techniques; Fisheries Biostatistics; Limnology; Marine Zoology.

 

12.  Professional Affiliations.

·         Member of Fishery Society of Nigeria

·         Member of Nigerian Society for Biological Conservation

·         Member of American Fishery Society 

·         Member of Fulbright Alumni Association of Nigeria

·         Member of Pan African Fishes and Fisheries Association.

 

13.  Conferences Attended.

·         Basil ’94: International workshop on the Biology of siluriformes. France. 24-27th May 1994. A.I. Obiekezie and D.A. Ekanem (1994): Experimental evaluation of the pathogenicity of Trichodina maritinkae to fry of cultured African clariid catfishes. Book of Abstracts P127.

·         6th Annual conference of Nigerian Society for Biological Conservation      held       in    Calabar, 15th-18th November 1997.  D. E. Ama-Abasi and I. M. Okon (1997): Turning a parasite into an ornament: the case of Trichodina maritinkae. Book of abstracts, p16.

·         14th  Annual Conference of Fisheries Society of Nigeria held in Ibadan,    19th-23rd January 1998.

·         128th Annual Meeting of American fisheries Society held in Hartford, Connecticut, USA. 23rd- 27th August 1998.

·         International Conference, Aquaculture Europe ’98 Bordeaux, France,  October 7-10, 1998. D. E. Ama-Abasi and S. Holzlohner (1998): Host-size relationship in Trichodina maritinkae (Ciliphora: Peritrichia) infestation of Heterobranchus longifilis. (Teleostei: Clariidae). Book of Abstracts. P 15-16

·         International Peace Conference held in Annapolis, Maryland, USA, April 1999.

·         Inaugural Conference of Fulbright Alumni Association of Nigeria, held in Ibadan, August 7-10, 2000

·         9th Annual Conference of the Nigerian Society for Biological Conservation held in Owerri, 25th-26th September 2000.   (i)      D.E.Ama-Abasi and S.Holzloehner (2000): An analysis of size       composition of bonga, Ethmalosa fimbriata in the Cross River   Estuary, Nigeria.   (ii) U. Enin, S. Holzloehner & D.E. Ama-Abasi (2000): Catch         structure of the multi-species gill net fishery in the Cross River   Estuary, Nigeria

 

·         131st Annual Meeting of American Fisheries Society held in Phoenix Arizona, USA. (i) Ama-Abasi, D.E. and Friedland, K. (2001): The Influence of size, gonadosomatic index and senescence on fecundity of American Shad. Book of Abstract 226.(i)  Ama-Abasi, D. E. and Holzloehner, S. 2001: Migration pattern of bonga in Cross River Estuary and adjacent Gulf of Guinea. Book of Abstracts. P 226-22

·         ICES Conference held in Oslo, Norway September 2001. Kevin Friedland, D. Ama-Abasi, L. Clarke, D. Sigourney and A. Stein. (2001): Automated fecundity and egg sizing for marine species from scanned images: rapid sample processing and large data volumes.

 

·         2nd Annual Conference of Fulbright Alumni Association of Nigeria, held in Zaria,

November 2001. D.E. Ama-Abasi and E. Nwagbara (2001): Factors militating against fisheries research in the lower Cross River Basin, Nigeria.

 

·         16th annual conference of Fisheries Society of Nigeria held in Maiduguri from 4th -9th November 2001Ama-Abasi, D. & Holzloehner, S. (2001): Contribution on the life cycle of the West African shad, Ethmalosa fimbriata (Bowdich 1894) in the Cross River Estuary and adjacent coastal waters. Book of Abstract, p 2.

 

·         132nd Annual Meeting of American Fisheries Society held in Baltimore, Maryland, USA. 18th –22nd August 2002. Ama-Abasi, D., Holzloehner, S. and Enin, U. (2002): Growth, mortality and exploitation rates of bonga, Ethmalosa fimbriata in Cross River Estuary and its adjacent coastal waters. Abstract number, 21024560-54.

 

·         134th Annual Meeting of American Fisheries Society held in Quebec, Canada.13-18th August 2003.                Ama-Abasi, D. E. and Holzloehner, S. (2003): The dynamics of exploited   population of bonga, Ethmalosa fimbriata in Cross River Estuary and adjacent Gulf of Guinea.

·         3rd International Conference of the Pan-African Fish and Fisheries Association held in Cotonou, Benin 10-14 November 2003.  S. Holzloehner, U.I Enin, D. Ama-Abasi &F.M. Nwosu (2003): Species composition and catch rates of gillnets fishery in the central Cross River Estuary, SE Nigeria. Book of Abstracts p 234-235.

 

·         37th annual        conference of Agricultural Society of Nigeria held in        Calabar, 16th -20th November 2003.   Ama-Abasi, D. (2003). Over-fishing in Bonga fishery by the purse seiners              in Cross River Estuary and adjacent coastal waters, Nigeria.   Book of Abstracts: p 66.

·         5th Annual Conference of Fulbright Alumni Association of Nigeria held in                Jos,3-6th December 2003. Daniel Ama-Abasi (2003): Sustainable development of small-scale fishery in a democratic Nigeria. Book of Abstracts, p 32.

·         4th International Fisheries Conference held in Vancouver, Canada. 4th to 7th May 2004.  Ama-Abasi, D, & Sieghard Holzloehner 2004: The purse seine fishery of bonga in Cross River Estuary and adjacent coastal waters. Book of abstracts,  p 160.            

 

·         1st Nigerian Universities Research and Development Trade Fair held in   Abuja 26th -28th November, 2004. Ama-Abasi, D. & I. Okon (2004): Ornamental utilization of a microorganism- Trichodina maritinkae.

·         19th Annual conference of Fisheries Society of Nigeria held in Ilorin 29th November -3rd December. Ama-Abasi, D. E.R.Akpan & S. Holzloehner 2004: Factors influencing   the emigration of juvenile bonga from the Cross River Estuary,        Nigeria. Book of Abstract p 11

·         135th Annual Conference of American Fisheries Society held in Alaska, USA. 11th –15th September 2005. D. Ama-Abasi, E.R.Akpan & S. Holzlohner: Emigration of juvenile bonga from Cross River Estuary, Nigeria. Abstract No.CP-2-EEX-136, Book of Abstract Page 222

·         20th annual conference of Fisheries Society of Nigeria held in Port             Harcourt from 14th – 18th November 2005.Ama-Abasi, D. & E.R.Akpan (2005): Possible bioindicators of environmental variability in the Cross River Estuary, S.E.Nigeria.

 

·         21tst Annual conference of Fisheries Society of Nigeria held in Calabar     from 13th -17th November 2006. Ama-Abasi, D., S. Holzloehner & U. Enin (2006): The current rate of exploitation of bonga by the purse seine fishery in the Cross River Estuary and adjacent coastal waters, Nigeria. Book of abstracts p 14.

·         22nd annual conference of Fisheries Society of Nigeria held          in Birnin- Kebbi, from 12th to 16th November 2007. (i) Ama-Abasi, D. (2007): A review of length-weight relationship and its  parameters in aquatic species. Book of abstract p43. (ii)  Ama-Abasi, D. & I. Akpan (2007): Elemental concentration and size   relationship in African cuttlefish Sepia bertholeti, from the coastal   waters off Qua Iboe River, Nigeria. Book of abstract p.34

·         4th International Conference of Pan African Fishes and Fisheries                Association held in Addis Ababa, Ethiopia, from 21st – 26th September 2008. (i)      Ama-Abasi, D. & E.R. Akpan (2008): Emigration of Juvenile                 bonga, Ethmalosa fimbriata, from the Cross River Estuary,         S.E.Nigeira. Book of Abstract p 17. (ii)           Ama-Abasi, D., M.Kyrian & N. Martins (2008): The ichthyofauna   of the lower reaches of Calabar and Great Kwa Rivers.   Book of Abstracts, p 18.

14.  Consultancy Services Rendered

·         Marginal Oil Fields Study for Shell Petroleum Company

·         Environmental Impact Assessment for the Proposed Quarry Industry in Akamkpa LGA

·         Science Intervention Workshop for Akwa Ibom State Ministry of Education.

15.  Publications

                Refereed Journal Articles

                                International

·         A. Obiekezie and D. Ekanem (1995): Experimental infection of Heterobranchus longifilis (Teleostei: Clariidae) with (Ciliophora Peritrichida). Aquatic Living Resources, (8): 439-443.

·         D.A.Ekanem and A.I. Obiekezie (1996): Growth reduction in African Catfish fry infected with Trichodina maritinake Basson &van As 1991 (Ciliophora; Peritrichida). Journal of Aquaculture in the tropics, 11: 91-96

·         D. E. Ama-Abasi and S. Holzlohner (1998): Host-size relationship in Trichodina maritinake (Ciliophora: Petritrichia) infestation of Heterobranchus longifilis (Teleostei: Clariidae). Special Publication, NO. 26: 15-16. European Aquaculture Society. Extended abstract of contributions presented at the International Conference, Aquaculture Europe ’98, Bordeaux, France. October 7-10, 1998. 

·         Ama-Abasi D., S.Holzloehner & U.I.Enin (2004): The dynamics of the exploited population of Ethmalosa fimbriata ( Bowdich, 1825. Clupeidae) in the Cross River Estuary and adjacent Gulf of Guinea. Fisheries Research. 68:225-235.

·         K.D.Friedland, D. Ama-Abasi, M.Manning, L.Clarke, G. Kligys and

R.C.Chambers. (2005): Automated egg counting and sizing from scanned images. Rapid sample processing and large data volumes for fecundity estimates. Journal of Sea Research. 54: 307-316

·         Holzloehner, S., U.I. Enin, D. Ama-Abasi & F. M. Nwosu (2007): Species composition and catch rates of the gillnet fishery in the central Cross River Estuary, S.E.Nigeria. J. of Afrotropical Zoology, Special issue: 107-112

·         Akpan, I., D. Ama-Abasi, E.I.Obiajunwa & F.M.Adebiyi (2009): Assessment        

of potential toxic elements pollution of marine environment using African Cuttlefish ( Sepia bertheloti) from the Gulf of Guinea as environmental Bioindicator. Toxicological & Environmental Chemistry, 91(5): 947-954.

Local

·         D.E.Ama-Abasi and I.M. Okon (1997): Turning a parasite into an ornament: the case of Trichodina maritinake. Transactions of Nigerian Society for Biological Conservation (6): 6-11.

·         D.E.Ama-Abasi and S. Holzlohner (2000): Analysis of Size composition of Bonga, Ethmalosa fimbriata in Inner Cross River Estuary, Nigeria. Transaction of Nigerian Society for Biological Conservation. 7: 1-8.

·         D.E. Ama-Abasi and S. Holzlohner (2002): Length frequency distribution of Ethmalosa fimbriata (Bowdich) in Cross River Estuary and adjacent coastal waters. Global Journal of Pure and Applied Sciences. 8(3): 299-304.       

·         Ama-Abasi, D.E & Obiekezie ,A.I. (2002). Trichodina (Ehrenberg)  (Ciliophora: Peritrichidae) infection of African clariid catfishes cultured in Nigeria. African Journal of Fisheries and Aquaculture. 3 (a&b): 8-19.

·         Ama-Abasi, D. (2004): Length-weight parameters and condition factor of bonga, Ethmalosa fimbriata in the Cross River Estuary, Nigeria: importance of large volume of data. Global Journal of Pure & Applied Sciences.10 (3): 379-383.      

·         Ama-Abasi, D.   (2006): Fecundity, gonadosomatic index and size at maturity of bonga. Ethmalosoa fimbriata in the coastal waters off the Cross River Estuary, Nigeria. Global Journal of Pure and Applied Sciences 12 (3): 287-293.

·         I. Akpan, D. Ama-Abasi, E.I. Obiajunwa, F.M. Adebiyi. (2009): Elemental characterization of African Cuttlefish, Sepia bertheloti, from the coastal waters off Qua Iboe River, Nigeria, using Energy Dispersive x-ray Reflection Fluorescence Technique. Nigerian Journal of Physics 20(2):325-333.

 

          Conference papers

·         Ama-Abasi, D. (2003): Studies on the population dynamics of bonga exploited by the purse seine fisheries in the Cross River Estuary and adjacent coastal waters of Nigeria. Proceedings of 37th Annual conference of the Agricultural Society of Nigeria held at the University of Calabar, Calabar Nigeria, 16th –20th November 2003. page 409-414.

·         Ama-Abasi, D. & E.R.Akpan (2004): Factors influencing the emigration of juvenile bonga from the Cross River Estuary. Proceedings of the 19th Annual Conference of the Fisheries Society of Nigeria (FISON) Held in Ilorin,, from 29th November to 3rd December 2004. 737-744..

·         Ama-Abasi D. & E.R.Akpan (2005): Possible bioindicators of environmental variability in the Cross River Estuary, S. E. Nigeria. Proceedings of 21st Annual conference of Fisheries Society of Nigeria held in Port Harcourt in November 2005. 254-260

·         Ama-Abasi, D., S. Holzloehner & U. Enin (2006): The current rate of   exploitation of bonga by the purse seine fishery in the Cross River Estuary and adjacent coastal waters, Nigeria. Proceedings of 20tst Annual conference of Fisheries Society of Nigeria held in Calabar from 13th -17th November 2006. 41-45.

·         Ama-Abasi, D. (2007): A review of length-weight relationship and its parameters in aquatic species. Proceedings of 22nd annual conference of Fisheries Society of Nigeria held in Birnin- Kebbi, from 12th to 16th November 2007. 240-244.           

·         Ama-Abasi, D. & I. Akpan (2007): Elemental concentration and size relationship in African cuttlefish Sepia bertholeti, from the coastal waters off Qua Iboe River, Nigeria. Proceedings of 22nd annual conference of Fisheries Society of Nigeria held in Birnin- Kebbi, from 12th to 16th November 2007. 245-249.

 

Thesis/Dissertations

·         D. Ekanem (1985): Preliminary studies on Cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae in Uyanga area of the Cross River State. B.Sc. Research Project. University of Calabar. 82pp

·         D.Ekanem (1995): Effects of Trichodinid Parasite ( Ciliophora: Peritrichida) on growth and survival of Hatchery- reared African catfish fry. M.Sc. Thesis University of Calabar.64pp

·         D. Ama-Abasi (2002): Aspects of population biology of   bonga, Ethmalosa fimbriata (Bowdich, 1825) in the Cross River Estuary. PhD Thesis, University of Calabar. 179pp   

  

  Technical Reports

·         U.K. Enyinihi, A.I. Obiekezie and D.A. Ekanem (1995): Status of Aquaculture development in the oil palm belt of Nigeria. Report submitted to European Economic Community. 100pp.

 

·         S. Holzhloner, U. Enin. F.M. Nwosu and D. E. Ama-Abasi (1998): Stock Assessment of Fish and shellfish species in the Cross River Estuary: Report submitted to Nationally Coordinated Research Programme. December 1998.50pp. Published

 

·         D. Ama-Abasi 2002: The bionomics of bonga Ethmalosa fimbriata in Cross River Estuary and adjacent coastal waters. A report submitted to International Foundation for Science, Stockholm, Sweden. May 2002. 25 pp. (Peer reviewed and published in IFS database).

·         Fishermen’s report. Bottom Trawl Survey. Cape Hatteras-Gulf of Maine. September 22-Novemebr 10, 1998 Submitted to National Marine Fisheries Service, Northeast Fisheries Science Centre, Wood holes, MA USA. Published.

 

·         D. Ama-Abasi (2005): Emigration of juvenile bonga from Cross River Estuary Nigeria. Report submitted to International Foundation for Science, Stockholm, Sweden. Grant A/2914-2.  Published.

  Monograph

·         Akpan, E.R. D. Ama-Abasi, A. Edet, J.Udom, E. Imuk & F. Apejoye (eds.) (2004): Selected baseline indicators parameters for environmental description. A Field guide for Environmental Protection & Management programme, University of Calabar. 10pp

 

 

               

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