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Shellfish is a colloquial and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms.


Determination of Microalgal Concentration by Use of Turbidity Measurement

FR466/FOR395by Huiping Yang and Jayme C. YeeMarch 28, 2023The goal of this study was to develop a rapid assessment of microalgal concentration using a turbidity meter to serve commercial shellfish hatcheries for feeding shellfish larvae and broodstock. We used four commonly used algal species, Tetraselmis suecica, Isochrysis galbana, Chaetoceros calcitrans, and Chaetoceros gracilis, generating serial dilutions of each and measuring cell concentrations and turbidity of each sample. We identified linear correlations between cell concentration and turbidity and established standard equations between cell concentration and turbidity for each species. We sampled and quantified algae from a shellfish hatchery using these equations and compared hemocytometer counts. No differences were found (P = 0.174), indicating the accuracy of the equations. We expect that this method can provide a quick, accurate, easy method for shellfish hatcheries to quantify algal concentration and avoid either over- or underfeeding larvae and broodstock. 

Molluscan Shellfish Aquaculture and Production

FA191/FA191 by Huiping Yang, Leslie N. Sturmer, and Shirley BakerMarch 5, 2019

Preparation, Safe Handling, and Nutritional Value of Blue Crab: A Seafood Delicacy

SG078/SGEF120 by Donald E. Sweat and Razieh FarzadApril 26, 2022This document provides basic information regarding the preparation, safe handling, and nutritional value of blue crab for seafood consumers. Written by Donald E. Sweat and Razieh Farzad; published by the UF/IFAS Food Science and Human Nutrition Department; 3 pp.

Related IFAS Blog Posts

World Food Day: Shellfish

jackietruongOctober 13th, 2022October 16, 2022 is World Food Day! Molluscan shellfish aquaculture is Florida’s largest food-use aquaculture industry. Shellfish provide benefits for water quality and marine environmental habitats, plus they taste great! IFAS is celebrating Food Week from October 17 to October 21st. To celebrate, we have provided a couple of resources to learn more about Florida’s […]

Resources for Florida’s Fisheries and Aquaculture Industries Impacted by Hurricane Ian

Scott JacksonOctober 3rd, 2022Last modified: October 10, 2022 9:30 PM Hurricane Ian caused significant damage to large parts of Florida and the state’s fisheries and aquaculture industries were particularly hard hit. Several sources are available for industry members needing assistance. This webpage will be updated when additional information is provided. Disaster Recovery Centers (DRC) are open across the […]

UF/IFAS awarded grant to boost shellfish aquaculture industry, water quality initiatives

Lourdes MederosNovember 16th, 2021University of Florida scientists hope to boost the shellfish aquaculture industry severely impacted by the Covid-19 pandemic. Scientists will use a $100,000 grant awarded by The Nature Conservancy (TNC) to capture statewide data needed from shellfish farmers and shellfish growers as a start. Researchers from UF’s Institute of Food and Agricultural Sciences and Florida Sea […]

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