SavedAdd your journal

Journals / Turkish Journal of Fisheries and Aquatic Sciences / 2008 / Cilt: 8 - Sayı: 2

Some aspects of the biology of two copepods: Apocyclops dengizicus and Mesocyclops isabellae from a pool in Garmat - Ali, Basrah, Iraq

Hanaa Hussain MOHAMED
Salman Daood SALMAN
Abdul Aziz Mahmood ABDULLAH
Pages
239–247
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It is suggested that predation and cannibalism may be the causes of diapause in the two species.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Some biological aspects of the copepods, Apocyclops dengizicus and Mesocyclops isabellae were studied at a pool in Garmet-Ali during the period between August 1998 and July 1999.
📊
Key Findings & Data:The laboratory sex ratio was in favour of the females: 3.6:1 and 2.06:1 in the two species respectively.
💡
Conclusion & Impact:It is suggested that predation and cannibalism may be the causes of diapause in the two species.
🔬Design:Lab & Field Experiment
📍Scope:Comprehensive Sample
⚙️Variables:biyoloji · Mesocyclops · Copepoda

Özet

Some biological aspects of the copepods, Apocyclops dengizicus and Mesocyclops isabellae were studied at a pool in Garmet-Ali during the period between August 1998 and July 1999. The laboratory sex ratio was in favour of the females: 3.6:1 and 2.06:1 in the two species respectively. The females of the two species showed faster growth during the copepodites IV, V and the adult. The males reached the adult stage at a shorter time than the females. All stages of life of A. dengizicus appeared in August 1998 and then disappeared. In February 1999, a few copepodites and adults were present, peaked in March and disappeared during April. M. isabellae appeared between August 1998 - December 1998, then disappeared and reappeared in April 1999. It is suggested that predation and cannibalism may be the causes of diapause in the two species.

🔖

Cite This Article

MOHAMED, H. H., SALMAN, S. D., ABDULLAH, A. A. M. (2008). Some aspects of the biology of two copepods: Apocyclops dengizicus and Mesocyclops isabellae from a pool in Garmat - Ali, Basrah, Iraq. Turkish Journal of Fisheries and Aquatic Sciences, Cilt: 8 - Sayı: 2, 239–247. https://ajindex.com/articles/408240

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (13)

  1. Abdul-Hussein, M.M. 1985. Zooplankton and Phytoplankton interaction in an Eutrophic Reservior. PhD. thesis, Colchester: University of Essex, 280 pp. Abdullahi, B.A. 1990. The effect of temperature on reproduction in three species of cyclopoid copepods. Hydrobiologia, 196: 101-109.
  2. Al-Zubaidi, A.J.M. and Salman, S.D. 2001. Distribution and abundance of zooplankton in the Shatt Al-Arab estuary, Northwest Arabian Gulf. Marina Mesopotamica, 16(2): 187–199.
  3. Crisp, D. J. 1984. Energy flow measurements. Methods for the study of Marine Benthos. In: N. Holm, and A.D. McIntyre, (Eds.). IBP Hand Book No. 16. Blackwell, Oxford: 284-372.
  4. Downing, J.A. and Rigler, F.H. 1984. A manual on methods for the assessment of secondary productivity in fresh waters. IBP Hand Book 17. Scientific publication Blackwell, Oxford: 1-18.
  5. Elgmork, K. 1959. Seasonal occurrence of Cyclops strenuus strenuus in relation to environment in small water bodies in Southern Norway. Folia Limnol. Scand., 11: 196. Fontain, M. 1955. The planktonic copepods (Calanoida, Cyclopoida, Monstrilloida) of Ungava Bay, with special reference to the biology of Pseudocalanus minutus and Calanus finmarchicus. J. fish. Res. Bd. Can., 12: 858-898.
  6. Georg, D.G. 1973. Diapause in Cyclops vicinus. Oikos, 24: 136-142.
  7. Giesbrecht, W. 1882. Die frieilebenden copepoden der Kieler Foehrd. Bericht Komiision zur wissenschaftlichen Untersuchung des deutschen Meere, Kiel, 4: 85-168.
  8. Gophen, M. 1978. Errors in the estimation of recruitment of early stages of Mesocyclops leuckarti (Claus) caused by the diurnal periodicity of egg-production. Hydrobiologia, 57(1): 59-64.
  9. Gophen, M. 1979. Sex ratio in Mesocyclops leuckarti (Claus) populations in Lake Kinneret (Israel). Hydrobiologia, 66(1): 41-43.
  10. Hirschfeld, H. 1974. Some observations on the breeding of Pseudocalanus in the laboratory and comparisons with other calanoid species. BSc. Hons. Thesis, Nova Scotia: Dalhouies Univ, 255 pp. Infant, A. 1982. Annual variations in abundance of zooplankton in Lake Valencia (Venezuela). Arch. Hydrobiol., 93: 194-208.
  11. Jonsson, E. 1985. Population dynamic and production of Chironomidae (Diptera) at 2m depth in Lake Esrm Denmark. Arch. Hydrobiol. Suppl., 20: 239-278.
  12. Lind, D.T. 1979. Handbook of Common Methods in Limnology. C.V. Mosby. Co., Louis, 199 pp. Maier, G. 1989a. The seasonal cycle of Thermocyclops crassus (Fischer, 1853) (Copepoda: Cyclopoida) in shallow, eutrophic Lake. Hydrobiologia, 178: 43-58.
  13. Maier, G. 1989b. The effect of temperat