Aquaculture & Seafood

Pesticide Applicator Manuals

Thu, 17 Nov 2011 11:21:02 -0500

Common Diseases of Cultured Striped Bass, Morone saxatilis, and Its Hybrid (M. saxitilis x M. chrysops)

Thu, 10 Jun 2010 09:36:03 -0400

Overview of Good Aquaculture Practices

Fri, 14 May 2010 15:35:57 -0400

Aquaculture has seen rapid growth in the United States. In Virginia, aquaculture is expanding in the foodfish, baitfish, shellfish, and ornamental production sectors. Growth areas include pond production and indoor, intensive recirculating aquaculture systems (RAS). Continued expansion of aquaculture in the state, as well as across the region and country, demands attention to both environmental and economic sustainability.

Good aquaculture practices (GAqPs) are a series of considerations, procedures, and protocols designed to foster efficient and responsible aquaculture production and expansion and to help ensure final product quality, safety, and environmental sustainability. GAqPs include considerations for: site location; production system design; incoming seed stock; facility biosecurity; feeding management, procurement, and storage; production techniques to maximize fish health; harvest; and cleaning and sanitation basics to ensure final product quality and safety. This document provides an overview and general framework for GAqPs, oriented to Virginia’s growing pond and RAS aquaculture production sectors.

Pescados y Mariscos en Virginia - Inocuos y Nutritivos

Tue, 12 Jan 2010 09:23:00 -0500

Artemia Culture for Intensive Finfish and Crustacean Larviculture

Fri, 25 Sep 2009 10:35:59 -0400

In Virginia and throughout the United States, freshwater and saltwater finfish and shrimp aquaculture is expanding rapidly. During the cultivation of most marine finfish and shrimp species – as well as some freshwater species – live feeds are an essential component during the larviculture stage. During larviculture, the rotifer is the most commonly used live feed upon transition of the larvae from endogenous (internal energy reserves) to exogenous (external) feeding. Upon completion of the rotifer stage, the most commonly used live feed prior to conversion of the larva to a dry diet is Artemia.

Rotifer Production (as a First Feed Item) for Intensive Finfish Larviculture

Wed, 27 May 2009 09:35:23 -0400

Live feeds are an integral component in the cultivation of most marine finfish species during larval stages. The first live feed that has demonstrated acceptability for most marine species, and which can typically be raised on a commercial scale, is the rotifer Brachionous spp. While approximately two thousand species of rotifers have been identified, most culturists rely upon the marine rotifers Brachionus plicatilis (L-strain) with a size range of 200 to 360 μm and B. rotundiformis (s-strain) with a size range of 150 to 220 μm (see figure 1). Rotifers are favored due to their size, their ability to be raised in mass cultures, and the fact that their nutrient composition can be quickly improved through the use of specialized enrichment diets.

Getting Acquainted with Amyloodinium ocellatum