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Synchronized broadcast spawning by six invertebrates (Echinodermata and Mollusca) in the north-western Red Sea
Webb, A.E.; Engelen, A.H.; Bouwmeester, J.; van Dijk, I.; Geerken, E.; Lattaud, J.; Engelen, D.; de Bakker, B.S.; de Bakker, D.M. (2021). Synchronized broadcast spawning by six invertebrates (Echinodermata and Mollusca) in the north-western Red Sea. Mar. Biol. (Berl.) 168(5): 56. https://doi.org/10.1007/s00227-021-03871-6
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
Peer reviewed article  

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Authors  Top 
  • Webb, A.E., more
  • Engelen, A.H.
  • Bouwmeester, J.
  • van Dijk, I.
  • Geerken, E., more
  • Lattaud, J., more
  • Engelen, D.
  • de Bakker, B.S.
  • de Bakker, D.M., more

Abstract

    On the evenings of June 11 and 12, 2019, 5 and 6 days before full moon, broadcast spawning by four echinoderm species and two mollusc species was observed on the Marsa Shagra reef, Egypt (25° 14′ 44.2" N, 34° 47′ 49.0" E). Water temperature was 28 °C and the invertebrates were observed at 2–8 m depth. The sightings included a single basket star Astroboa nuda (Lyman 1874), 2 large Tectus dentatus (Forskal 1775) sea snails, 14 individuals of the Leiaster cf. leachi (Gray 1840) seastar and 1 Mithrodia clavigera (Lamarck 1816) sea star, 3 Pearsonothuria graeffei (Semper 1868) sea cucumbers, and 2 giant clams, Tridacna maxima (Röding 1798). The observations presented here provide relevant information on broadcast spawning of non-coral invertebrate taxa in the Red Sea, where spawning is considerably less well documented than in other tropical geographical regions such as the Indo-Pacific and Caribbean.


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