Estimates of exploitation rates of the spiny lobster fishery for Panulirus argus from tagging within the Bahía Espíritu Santa 'Sian Ka'an' Biosphere Reserve, Mexican Caribbean
MetadataShow full item record
The Version of Record of this manuscript has been published and is available in Marine Biology Research 2012 http://www.tandfonline.com/10.1080/17451000.2012.727434
The Caribbean spiny lobster (Panulirus argus) fishery is currently being assessed for a certification process. It is the main economic activity within the Biosphere Reserve of Sian Ka'an-Mexico (SK), which is a marine-protected area where restricted access fishing is allowed. In this study, commercial catch rates were examined, and lobsters over a wide size range were tagged throughout the 2010/2011 fishing season, to assess fishing mortality rates and movement patterns in Bahía Espíritu Santo-SK. Lobster tag recovery data were aggregated into 2-week periods and analysed using a modified Brownie model that was parameterized to account for lobster tag-reporting, and the lobster tag-retention rates. This allowed the estimation of instantaneous rates of natural and fishing mortality, considering catchability and fishing effort. Independent aquaria trials were conducted to better estimate lobster tag retention, tagging-induced mortality and interviews with fishermen were conducted to better estimate lobster tag reporting. Based mainly on legal-sized juveniles with fast growth rates found in casitas, the stock is subject to fishing to a maximum depth of 20 m, because of the prohibition of SCUBA diving and the use of other fishing gear. The Brownie model indicated that exploitation rates within this bay area were high,>0.94. Changes in catch per unit of effort and catchability throughout the season explain how the ‘casita/campo’ system allows for a seasonal replenishment of juveniles and adults, which has kept the landings relatively stable for the past decade.
Showing items related by title, author, creator and subject.
Parsons, Miles James Gerard (2009)Techniques of single- and multi-beam active acoustics and the passive recording of fish vocalisations were employed to evaluate the benefits and limitations of each technique as a method for assessing and monitoring fish ...
An unfished area enhances a spiny lobster, Panulirus argus, fishery: implications for management and conservation within a Biosphere Reserve in the Mexican CaribbeanLey-Cooper, K.; De Lestang, S.; Phillips, Bruce; Lozano-Álvarez, E. (2014)The Caribbean spiny lobster (Panulirus argus, Latreille, 1804) is the main source of income for the communities in the Sian Ka´an Biosphere Reserve Mexico. The fishery has recently been certified as “sustainable” by the ...
Demography, fishery yield and potential management strategies of painted spiny lobster (Panulirus versicolor) at Northwest Island, Great Barrier Reef, AustraliaFrisch, A.; Hobbs, Jean-Paul (2012)Quantification of demographic parameters is important for understanding how populations interact with their environment and for developing sustainable harvest strategies. Our aims were to quantify demographic parameters ...