Project

Genetic Confirmation of Southern Hard Clam

Full Title: Genetic confirmation of the Southern Hard Clam (Mercenaria campechiensis) to support ongoing research and industry initiatives in southwest Florida.
The project seeks to genetically confirm the Southern Hard Clam (Mercenaria campechiensis) to support aquaculture in southwest Florida, addressing summer mortality issues in northern hard clams. By distinguishing between species and hybrids, the initiative aims to enhance industry resilience and diversification.
Lead Investigator: Dr. Angela Collins, Florida Sea Grant, UF|IFAS Extension, abcollins@ufl.edu
Project Team: • Dr. Bruce Barber, Gulf Shellfish Institute • Curt Hemmel, Bay Shellfish Company • Southwest Florida Shellfish Association
Collaborator: Gulf Shellfish Institute, Bay Shellfish Company, Southwest Florida Shellfish Association
Award Amount: $3,450
Year Funded: 2018
Award Period: 9/1/2018 – 8/31/2019
Project Abstract:

This project focuses on the genetic confirmation of the Southern Hard Clam (Mercenaria campechiensis) to support aquaculture in southwest Florida. With the northern hard clam (M. mercenaria) experiencing high summer mortality rates due to rising temperatures, the native M. campechiensis offers a viable alternative for the region’s aquaculture industry. Genetic testing will differentiate between M. campechiensis, M. mercenaria, and their hybrids, ensuring the production of pure southern quahog seed which will help address summer mortality issues and expand the industry. Genetic verification of broodstock and offspring will be conducted, with the goal of developing genetically distinct lines, enhancing the resilience and diversity of Florida’s shellfish aquaculture industry. The outcomes will support ongoing research, industry expansion, and environmental remediation efforts, ultimately enhancing the economic and ecological benefits of shellfish aquaculture in Florida.

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