Projects - Dolphin Tagging

 

Cooperative Science Services, LLC
Dolphin Tagging Research Project

 

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 Cooperative Science Services, LLC
961 Anchor Rd.
Charleston, SC 29412
(843) 795-7524

Email:
CSSLLC@bellsouth.net
Website: www.dolphintagging.com

 

 

Dolphin are the dominant fish caught in the offshore recreational troll fishery in the Gulf of Mexico (GOM) and South Atlantic Bight (SAB). These brilliantly colored fish comprise more than 50% of the bluewater pelagic game fish harvest each year in these areas.   Recreational anglers fishing the SAB catch almost 75% of the US Atlantic and Gulf recreational catch of dolphin.  Prior to 1995 there was little interest by commercial fishermen in dolphin.  Since 1995, there has been a growing commercial interest in dolphin. Currently, commercial fishing accounts for only 5% of the total domestic landings of dolphin in the Gulf and Atlantic but the import of dolphin commercially harvested in the Caribbean is on the increase.  

Prior to the South Carolina Department of Natural Resource's 2002 - 2005 tagging study of dolphin, science had little information on the movements of dolphinfish along the East Coast.  While fishermen readily accept that dolphin began their spring migration in the southern most areas of the East Coast moving northward during the spring and summer, science did not have hard data to support this simple theory.  How fast the fish travel and how far north south Florida dolphin would move were unknown.

Fishery managers have generally accepted that there were at least two and possibly three stocks of dolphin in the Western Central Atlantic with the East Coast stock separate from that found in the Caribbean Sea .  This theory supported the decision by the Fisheries Management Councils for the Caribbean, Gulf of Mexico and South Atlantic , who are the government agencies responsible for the management of dolphinfish, to manage the dolphin in each area independently.  These agencies recognize dolphinfish as an important species to the region's recreational fisheries and consider the stocks to be healthy, not over-fished.

The study initiated by the SC DNR was amazingly successful.  Information gathered during the four year study by the SC DNR confirmed that dolphinfish do travel from the Florida Keys to New York and Massachusetts .  Recoveries showed that dolphin could make the 1,000+ mile trip in less than two months.   Information from the study indicated that dolphin were capable of moving more than 100 miles per day along the East Coast during their northward migration.  This study also documented East Coast dolphin traveling into the Eastern Atlantic Ocean, West Indies, and Western Caribbean Sea .  No other study has been as successful in gathering information on the movement pattern of this important game fish.

The CSS Dolphin Tagging Research Project is a continuation of the highly successful SC DNR study conducted by the president of CSS, LLC prior to his retirement from the agency.   The study relies on recreational fishermen to volunteer to tag their small and unwanted dolphin for this study.  During the five years of this study, more than 800 anglers and 300 offshore sport fishing vessels have participated.  Anglers have marked and released almost 6,000 dolphinfish for the study with more than 150 tagged fish being reported recovered. 

Due to reductions in federal funding for marine fisheries research and the disastrous impact hurricane Katrina had on the Gulf of Mexico fisheries, no federal funding is available to continue the Dolphin Tagging Study in 2006.  However, recreational fishermen along the entire East Coast voiced their desire for the study to continue and showed their commitment by donating the money necessary to begin the study.  Not willing to set back and wait for the dolphin stocks to become over-fished, sport fishermen and industry have joined to provide financial support for this important research project.

The Hilton Head Reef Foundation realizes the need for pro-active fisheries research on important game fish before the stocks are over-fished and declining.  The HHR Foundation recognized the important role that they could play in needed fisheries research by helping to raise private funding to help finance the CSS Dolphin Tagging Research Project and other needed research.  Individuals and businesses can now make tax deductible donations in support of the Dolphin Study through the HHR Foundation. 

For more information on the Dolphin Tagging Research Project visit the project's Website or contact;

Donald L. Hammond
Marine Fisheries Biologist, president

 



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