Doukakis Phaedra, Hanner Robert, Shivji Mahmood, Bartholomew Cecilia, Chapman Demian, Wong Eugene, Amato George
Scripps Institution of Oceanography, Center for Marine Biodiversity and Conservation, University of California, San Diego, La Jolla, CA 92093-1070, USA.
Mitochondrial DNA. 2011 Oct;22 Suppl 1:15-20. doi: 10.3109/19401736.2010.526112. Epub 2011 Feb 1.
The shark fisheries of Madagascar remain largely unstudied. Remoteness makes fisheries monitoring challenging while the high value of shark fins combined with the extreme poverty in Madagascar creates intensive pressure on shark resources.
We use DNA barcoding and species-specific PCR assays to characterize shark fisheries in Antongil Bay in northeastern Madagascar.
The 239 samples taken from individuals collected in 2001 and 2002 correspond to 19 species. The four most common species were Sphyrna lewini, Rhizoprionodon acutus, Carcharhinus brevipinna, and C. sorrah. Antongil Bay may be a breeding area for C. brevipinna, C. leucas, and S. lewini.
Local names are generally not a useful proxy for monitoring the species harvested in the fishery. Conservation efforts should characterize species exploitation at present, create spatial and temporal fishing restrictions to protect endangered species, and restrict large mesh gillnets.
马达加斯加的鲨鱼渔业在很大程度上仍未得到研究。地处偏远使得渔业监测颇具挑战，而鲨鱼鳍的高价值加上马达加斯加的极端贫困，给鲨鱼资源带来了巨大压力。
我们使用DNA条形码和物种特异性PCR分析方法来描述马达加斯加东北部安通吉尔湾的鲨鱼渔业特征。
2001年和2002年采集的239个个体样本对应19个物种。四种最常见的物种是路氏双髻鲨、尖吻斜锯牙鲨、短鳍真鲨和镰状真鲨。安通吉尔湾可能是短鳍真鲨、公牛鲨和路氏双髻鲨的繁殖地。
当地名称通常并非监测渔业中捕捞物种的有效指标。保护措施应明确目前物种的开发利用情况，制定时空捕捞限制以保护濒危物种，并限制使用大网目刺网。
