IDEAS home Printed from https://ideas.repec.org/a/eee/ecomod/v214y2008i2p83-94.html
   My bibliography  Save this article

Exploring ecosystem-based harvesting strategies to recover the collapsed pink shrimp (Farfantepenaeus duorarum) fishery in the southern Gulf of Mexico

Author

Listed:
  • Arreguin-Sanchez, Francisco
  • Zetina-Rejón, Manuel
  • Ramírez-Rodríguez, Mauricio

Abstract

The pink shrimp was a very important fishery in the southern Gulf of Mexico, but it is currently collapsed. In the early 1970s, fishery yields peaked at about 27,000t per year, of which the pink shrimp was 90%. At present, yields are around 3000t per year, and pink shrimp contributes less than 1000t of this. Several studies indicate the main cause is a continually decreasing recruitment rate over the last nearly 30 years, but particularly since the mid-1980s. Single species models cannot predict stock recovery: the best estimate indicates a recovery of almost 20% assuming a closure of 10 years and the current stable stock. An ecosystem approach, based on Ecopath with Ecosim software, is applied to explore harvesting strategies aimed at recovery of shrimp stock, and based on fleet control. To this end, an improved Ecopath mass-balanced model of the southern Gulf of Mexico ecosystem was used for simulations based on Ecosim. A time series of 25 years of biomass and fishing rate data for the pink shrimp, from an age-structured model, was used to calibrate previous model simulations. We also used monthly recruitment for the same period, and changes in vulnerability to predation as forcing factors. At this stage, the model fits independent data well. Harvesting strategies were simulated using different combinations of weighting factors for optimized criteria. These criteria included: net rent, jobs, mandate rebuilding shrimp stock, and conservation of ecosystem structure. Eighteen realistic outputs were obtained after simulations, but all of them resulted in similar conclusions (CV<7% among all cases). Results indicate that harvested shrimp could be 40% larger than the current size with specific control of fishing fleets. Shrimp fishing mortalities should be reduced by 63.7%, and those of traditional fleets based on hook-and-line, targeting demersal and pelagic fish, by 26.7% and 3.8%, respectively. Fishing mortality of the beach seine and octopus fleets should be increased by 13.6% and 56.5%, respectively. With this scenario, economic and social criteria are strongly and negatively impacted, while the ecological criterion indicates ecosystem structure can remain at least.

Suggested Citation

  • Arreguin-Sanchez, Francisco & Zetina-Rejón, Manuel & Ramírez-Rodríguez, Mauricio, 2008. "Exploring ecosystem-based harvesting strategies to recover the collapsed pink shrimp (Farfantepenaeus duorarum) fishery in the southern Gulf of Mexico," Ecological Modelling, Elsevier, vol. 214(2), pages 83-94.
  • Handle: RePEc:eee:ecomod:v:214:y:2008:i:2:p:83-94
    DOI: 10.1016/j.ecolmodel.2007.11.021
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0304380007006187
    Download Restriction: Full text for ScienceDirect subscribers only

    File URL: https://libkey.io/10.1016/j.ecolmodel.2007.11.021?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Wang, Y. & Li, S.Y. & Duan, L.J. & Liu, Y., 2012. "Fishery policy exploration in the Pearl River Estuary based on an Ecosim model," Ecological Modelling, Elsevier, vol. 230(C), pages 34-43.
    2. Deehr, Rebecca A. & Luczkovich, Joseph J. & Hart, Kevin J. & Clough, Lisa M. & Johnson, Beverly J. & Johnson, Jeffrey C., 2014. "Using stable isotope analysis to validate effective trophic levels from Ecopath models of areas closed and open to shrimp trawling in Core Sound, NC, USA," Ecological Modelling, Elsevier, vol. 282(C), pages 1-17.
    3. de Mutsert, Kim & Lewis, Kristy & Milroy, Scott & Buszowski, Joe & Steenbeek, Jeroen, 2017. "Using ecosystem modeling to evaluate trade-offs in coastal management: Effects of large-scale river diversions on fish and fisheries," Ecological Modelling, Elsevier, vol. 360(C), pages 14-26.
    4. Christensen, Villy & Ferdaña, Zach & Steenbeek, Jeroen, 2009. "Spatial optimization of protected area placement incorporating ecological, social and economical criteria," Ecological Modelling, Elsevier, vol. 220(19), pages 2583-2593.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecomod:v:214:y:2008:i:2:p:83-94. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/ecological-modelling .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.