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084f2db8c6 Red Sea Is the Subject Area "Red Sea" applicable to this article? Yes No Thanks for your feedback. Nonetheless, even with thorough sampling Echinometra may present a high plasticity of morphological characters. Detailed view of study sites: (B) Sesoko Isl., Okinawa, (C) Zanzibar, Western Indian Ocean, and (D) Eilat, Gulf of Aqaba/Eilat. Ca, Ba, Cu, Ki, Ja, Po, Mn, and Nu denote Changuu, Bawe, Chumbe, Kizimkazi, Jambiani, Pongwe, Mnemba and Nungwi, respectively. Gonads Is the Subject Area "Gonads" applicable to this article? Yes No Thanks for your feedback. Permit number AOl/VolXV/38, issued by the University of Dar Es Salaam, Institute of Marine Sciences for collection in Zanzibar, Tanzania. Dominant spicule typesLocalitySpeciesColor of spinesMilled ringsSkin of peristomeTube feetGonadsRatio (%)OkinawaE.
Abrmoff MD, Magalhes PJ, Ram SJ (2004) Image processing with ImageJ. However, an in-depth examination of the characters used for identification of these species revealed a much higher intraspecific diversity than previously reported. Thus mtDNA data suggest that Echinometra from the Red Sea and WIO differ from the other Echinometra species. Measurements to the nearest 0.5 mm were performed using thin blade Vernier calipers to prevent interference by the spines. Wangensteen, and two anonymous reviewers for their enlightening and constructive comments on the manuscript. For example, while E. Sperm samples were obtained as undiluted semen, i.e., dry sperm, by removing the testes. Edible Sea Urchins: Biology and Ecology. The currently available morphological keys were found to be limited in their ability to delineate all species within this genus. sp.