The Effect Of Environmental Condition On The Spawning Period Of Blood Cockle Anadara granosa (Bivalvia: Arcidae) In Lhokseumawe, The Northern Straits Of Malacca

munawar khalil

Abstract


Tujuan dari penelitian ini adalah untuk menganalisis perubahan dalam perkembangan gonad kerang Anadara granosa di Lhokseumawe, bagian utara Selat Malaka dalam hubungannya dengan fluktuasi kualitas air harian. Untuk menentukan periode pemijahan populasi kerang, dilakukan analisis indeks kondisi (condition index/CI). Sampel kerang dikumpulkan dari Juli 2009 sampai Mei 2010 dan parameter kualitas air turut diukur secara berkala. Indeks kondisi tertinggi dari populasi kerang diamati pada Oktober 2009 (13.97±3.49), sedangkan indek kondisi terendah ditemukan pada Januari 2010 (6.76±1.13). Periode pemijahan untuk A. granosa diketahui terjadi terus-menerus sepanjang tahun, dengan puncak pemijahan terjadi pada bulan Oktober 2009 sehingga Januari 2010. Suhu air dan salinitas harian di lokasi penelitian berkisar antara 24-34 oC dan 27-33 ppt. Periode pemijahan populasi A. granosa diketahui bertepatan dengan terjadinya fluktuasi secara drastis pada suhu air dan salinitas harian. Analisis kualitatif menunjukkan bahwa suhu dan salinitas adalah modulator utama peristiwa reproduksi. Ketika suhu dan salinitas berfluktuasi, aktifitas pemijahan secara sporadis terdeteksi pada spesies ini. Penelitian ini juga menunjukkan bahwa periode pemijahan yang diikuti oleh proses rekrutmen dalam populasi kerang A. granosa Lhokseumawe sangat tergantung pada kondisi lingkungan kawasan tersebut..


Full Text:

PDF

References


Afiati, N.( 2007). Gonad maturation of two intertidal blood clams Anadara granosa (L.) And Anadara antiquata (L.) (Bivalvia: Arcidae) in Central Java. Journal of Coastal Development, 10, 105-113.

Baqueiro-Cardenas, E., & Aldana-Aranda, D. (2000). A review of reproductive patterns of bivalve molluscs from Mexico. Bull. Marine Sciences, 66, 13–27.

Bayne, B. (1985). Responses to environmental stress: tolerance, resistance and adaptation. In: J. S. Gray &M. E. Christiansen, editors. Marine Biology of Polar Regions and Effects of Stress on Marine Organisms. Proc. 18th Europe. Marine Biology. Symposiums, Univ. Oslo, Norway.

Broom, M. J. (Ed.). (1985). The biology and culture of marine bivalve molluscs of the genus Anadara (No. 12). The WorldFish Center.

Chipman, W.A. (1947). Seasonal changes in the fattening of oysters. Proceedings of the National Shellfisheries Association. 28-32.

Dame, R. F. (1996). Ecology of marine bivalves: an ecosystem approach (Vol. 34). CRC PressI Llc.

Engle, J. B. (1950). The condition of oysters as measured by the carbohydrate cycle, the condition factor and the percent dry weight. In Proc. Natl. Shellfish. Assoc (Vol. 1950, pp. 20-25).

Freites, L., Montero, L., Arrieche, D., Babarro, J. M., Saucedo, P. E., Cordova, C., & García, N. (2010). Influence of environmental factors on the reproductive cycle of the eared ark Anadara notabilis (Röding, 1798) in northeastern Venezuela. Journal of Shellfish Research, 29(1), 69-75.

Gosling, E. (2003). Bivalve molluscs, biology, ecology and culture. Fishing News Books. Blackwell Publishing.

Kastoro, W. (1978). Reproduksi kerang bulu, Anadara antiquate (Linnaeus), Suku Arcidae. Oseana Indonesia, 9, 51–59.

Lawrece, D., & Scott, G.I. (1982). The determination and use of condition index of oysters. Journal of Estuaries, 5, 23-27.

MacDonald, B. A., & Thompson, R. J. (1985). Influence of temperature and food availability on the ecological energetic of the giant scallop Placopecten magellanicus. II. Reproductive output and total production. Marine Ecology Progress Series, 25:295–303.

Mzighani, S. (2007). Fecundity and population structure of cockles, Anadara antiquata L. 1758 (Bivalvia: Arcidae) from a sandy/muddy beach near Dar es Salaam, Tanzania. Western Indian Ocean Journal of Marine Science, 4(1), 77-84.

Rebelo, M. F., Amaral, M. C. R., & Pfeiffer, W. C. (2005). Oyster condition index in Crassostrea rhizophorae (Guilding, 1828) from a heavy-metal polluted coastal lagoon. Brazilian Journal of Biology, 65(2), 345-351.

Sahin, C., Düzgüneş, E., & Okumus, I. (2006). Seasonal variations in condition index and gonadal development of the introduced blood cockle Anadara inaequivalvis (Bruguiere, 1789) in the Southeastern Black Sea coast. Turkish Journal of Fisheries and Aquatic Sciences, 6(2), 155-163.

Suwanjarat, J., & Parnrong, S. (1990). Reproductive cycle of Anadara granosa L. Jebilung, Satun Province. Songklanakarin Journal of Science and Technology, 12(4), 341-351.




DOI: https://doi.org/10.29103/agrium.v10i2.499

Article Metrics

 Abstract Views : 615 times
 PDF Downloaded : 176 times

Refbacks

  • There are currently no refbacks.


Copyright (c) 2018 munawar khalil

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Jurnal Agrium

ISSN 1829-9288 (Print)

ISSN 2655-1837 (Online)

Published by Faculty of Agriculture, Universitas Malikussaleh
Website : http://ojs.unimal.ac.id/index.php/agrium
E-mail : agrium@unimal.ac.id

Creative Commons License

Jurnal Agrium is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
(c) Author 2018 all rights reserved

Jurnal Agrium Statistics