Ecotourism affects breeding in sergeant major damselfish (Abudefduf saxatilis)

Reuven Yosef, Yuval Abergil, Federico Morelli

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We studied the effect of tourist activity on the reproductive success of sergeant major damselfish (Abudefduf saxatilis). We snorkeled at two sites – one with a bridge over the reef allowing access to the reef from the seaside (Princess beach) and further south where the number of tourists is low (Taba beach). We identified 36 (65.5%) nests on the Princess reef and 19 (34.5%) on the Taba reefs. Average nest size at Princess was 11.8 cm 2 (±2.68 SD) vs 19.6 cm 2 (±3.9) at Taba. Further, at Princess although the number of nests was not correlated to the distance from the bridge (R 2 = 0.352), average nest size increased with distance from the bridge (R 2 = 0.861). At Taba, nests on the continuous reef averaged 21.8 cm 2 (±1.8, N = 13) while those on the loose aggregation reefs averaged 14.8 cm 2 (±2.02, N = 6). Although reef tourism is increasingly being regarded a major source to generate income for human coastal communities, a better understanding of the consequences of human activities to the reef system can enhance conservation initiatives and facilitate management implementation.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalJournal of Environmental Management
StatePublished - 1 May 2019


  • Abudefduf saxatilis
  • Breeding
  • Ecotourism
  • Red sea
  • Sergeant major


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