Since the 1960s the demand for ornamental aquarium fish has grown steadily and consequently cyanide fishing is still a popular fishing method despite its prohibition. This poses a severe threat to coral reefs in Southeast Asia. This study aimed to investigate the short-term stress reaction on photosynthetic yield in the tissues of three different hard coralcolonies (branching growth forms Pocillopora damicornisand Seriatopora hystrix, andmassive Porites lobata) to initially high and then decreasing cyanide exposure, mimicking cyanide fishing by fishermen. Experiments were performed both in situ in the coral reefs of the Marine Protected Area Pulau Pieh, West Sumatra, Indonesia, and in the aquaria facilitiesof ZMT in Germany. A Diving-PAM fluorometer was used forin vivostress assessment of the holobiont. While in all species the photosynthetic efficiency was significantly reduced right after cyanide application, the massive species displayed much lowerΔF/Fm’values. Afterthree days in cyanide-free water all three coral species recovered to initial values of Fv/Fm,except for P. lobata. No bleaching or discolouration was detected by the conclusion of the experiment after 38 days. Especially Indonesian reefs with massive corals may be thereforemore severely impacted by cyanide fishing since the retention time of the water in these reefs is longer than in reefs that consist primarily of branching corals. This might have implications for the management of different reef parts of the MPA.
Springer K., Brix da Costa B., Samsuardi S. and Kunzmann A. (2022) Simulating cyanide fishing: photosynthetic effects of short-term cyanide exposure in three different hermatypic coral species. Marine Biology Research : 1-9. 10.1080/17451000.2022.2147947
@article{Springer2022,
Title = {Simulating cyanide fishing: photosynthetic effects of short-term cyanide exposure in three different hermatypic coral species},
Author = {Springer, Karin and Brix da Costa, Beatrice and Samsuardi, Sam and Kunzmann, Andreas},
Editor = {},
Journal = {Marine Biology Research},
Year = {2022},
Pages = {1-9},
Doi = {10.1080/17451000.2022.2147947},
Abstract = {Since the 1960s the demand for ornamental aquarium fish has grown steadily and consequently cyanide fishing is still a popular fishing method despite its prohibition. This poses a severe threat to coral reefs in Southeast Asia. This study aimed to investigate the short-term stress reaction on photosynthetic yield in the tissues of three different hard coralcolonies (branching growth forms Pocillopora damicornisand Seriatopora hystrix, andmassive Porites lobata) to initially high and then decreasing cyanide exposure, mimicking cyanide fishing by fishermen. Experiments were performed both in situ in the coral reefs of the Marine Protected Area Pulau Pieh, West Sumatra, Indonesia, and in the aquaria facilitiesof ZMT in Germany. A Diving-PAM fluorometer was used forin vivostress assessment of the holobiont. While in all species the photosynthetic efficiency was significantly reduced right after cyanide application, the massive species displayed much lowerΔF/Fm’values. Afterthree days in cyanide-free water all three coral species recovered to initial values of Fv/Fm,except for P. lobata. No bleaching or discolouration was detected by the conclusion of the experiment after 38 days. Especially Indonesian reefs with massive corals may be thereforemore severely impacted by cyanide fishing since the retention time of the water in these reefs is longer than in reefs that consist primarily of branching corals. This might have implications for the management of different reef parts of the MPA.},
}
TY - JOUR
AU - Springer, Karin
AU - Brix da Costa, Beatrice
AU - Samsuardi, Sam
AU - Kunzmann, Andreas
TI - Simulating cyanide fishing: photosynthetic effects of short-term cyanide exposure in three different hermatypic coral species
T2 - Marine Biology Research
PY - 2022
SP - 1-9
DO - 10.1080/17451000.2022.2147947
AB - Since the 1960s the demand for ornamental aquarium fish has grown steadily and consequently cyanide fishing is still a popular fishing method despite its prohibition. This poses a severe threat to coral reefs in Southeast Asia. This study aimed to investigate the short-term stress reaction on photosynthetic yield in the tissues of three different hard coralcolonies (branching growth forms Pocillopora damicornisand Seriatopora hystrix, andmassive Porites lobata) to initially high and then decreasing cyanide exposure, mimicking cyanide fishing by fishermen. Experiments were performed both in situ in the coral reefs of the Marine Protected Area Pulau Pieh, West Sumatra, Indonesia, and in the aquaria facilitiesof ZMT in Germany. A Diving-PAM fluorometer was used forin vivostress assessment of the holobiont. While in all species the photosynthetic efficiency was significantly reduced right after cyanide application, the massive species displayed much lowerΔF/Fm’values. Afterthree days in cyanide-free water all three coral species recovered to initial values of Fv/Fm,except for P. lobata. No bleaching or discolouration was detected by the conclusion of the experiment after 38 days. Especially Indonesian reefs with massive corals may be thereforemore severely impacted by cyanide fishing since the retention time of the water in these reefs is longer than in reefs that consist primarily of branching corals. This might have implications for the management of different reef parts of the MPA.
ER -
