Modelling the effects of destructive fishing practices on tropical coral reefs

S. B. Saila, V. L. Kocic, John McManus

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Review of the use of underwater explosives indicated that the largest lethal zone for swimbladder fishes is located near the surface of the water. Mortality in this zone is due to rupture of the swimbladder from negative pressure induced by cavitation of the near-surface water volume from a subsurface explosion. For blast fishing in the Philippines, valuable pelagic species rather than typical coral reef species were the primary targets. Results of a simulation model indicated that the sum of all current destructive practices was sufficient to continue less of diversity and loss of live coral cover for c25 yr before any recovery was expected. A reduction in the rate of destructive fishing to c30% of the current level would permit continuing slow recovery of both diversity and live coral cover. This might best be accomplished by attempting to eliminate the use of poisons (such as cyanide) in reef areas and reducing anchor damage in addition to reducing blast fishing in coral areas. -from Authors

Original languageEnglish
Pages (from-to)51-60
Number of pages10
JournalMarine Ecology Progress Series
Volume94
Issue number1
StatePublished - Dec 1 1993
Externally publishedYes

Fingerprint

coral reefs
coral reef
corals
coral
fishing
swim bladder
surface water
modeling
cavitation
explosions
cyanides
cyanide
anchor
Philippines
explosive
rupture
explosion
reefs
simulation models
reef

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

Modelling the effects of destructive fishing practices on tropical coral reefs. / Saila, S. B.; Kocic, V. L.; McManus, John.

In: Marine Ecology Progress Series, Vol. 94, No. 1, 01.12.1993, p. 51-60.

Research output: Contribution to journalArticle

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