Life Sciences Commons^™

The Shellfish Corner: Sustainability And The Precautionary Principle, Michael A. Rice

Michael A Rice

Growth Characteristics Of Newly Isolated Indonesian Microalgae Under Diferent Salinity, Michael A. Rice, Wa Iba, Gary H. Wikfors, Lucie Maranda

Michael A Rice

Freshwater Aquaculture And Its Permitting In Rhode Island: Two Case Studies, Michael A. Rice, Joseph B. Haberek, David Beutel

Michael A Rice

Freshwater Aquaculture And Its Permitting In Rhode Island: Two Case Studies, Michael A. Rice, Joseph B. Haberek, David Beutel

Michael A Rice

The Shellfish Corner: The Promises Of Aquaculture And Caveat Emptor, Michael A. Rice

Michael A Rice

The Shellfish Corner: Shellfish Aquaculture In The Commons, Michael A. Rice

Michael A Rice

The Shellfish Corner: Cap And Trade Systems With Shellfish May Be Good For The Economic Bottom Line, Michael A. Rice

Michael A Rice

The Shellfish Corner: How Many Shellfish Can I Grow On My Farm?, Michael A. Rice

Michael A Rice

The Shellfish Corner: Oyster Shells, Cultching, And Oyster Farming, Michael A. Rice

Michael A Rice

The Shellfish Corner: The Luther H. Blount Shellfish Hatchery Of Rhode Island, Michael A. Rice

Michael A Rice

The Shellfish Corner: Aquaculture Of Exotic Shellfish Species, Michael A. Rice

Michael A Rice

The Shellfish Corner -- Water Quality And Culture Of Shellfish In Prohibited Waters, Michael A. Rice

Michael A Rice

Notes On The Identification And Distribution Of The Exotic Western Hemisphere Mussel, Mytella Charruana D'Orbigny 1846, In The Estuaries Of Pangasinan, Philippines., Michael Rice, Paul Rawson, Westly Rosario

Michael A Rice

The Shellfish Corner: Filter Feeding Bivalves As Processors Of Coastal Waters, Michael Rice

Michael A Rice

Bivalves have a profound role in controlling the boom and bust cycles of seasonal phytoplankton blooms, and the increased rates of sediment deposition to the bottom by bivalves are an important "coupler" between the water column and the bottom that stimulates the rate of decomposition and other processes in the sediments.

Establishing A National Shellfish Sanitation Program In The Gambia, West Africa, Michael A. Rice, Foday Conteh, Karen Kent, Brian Crawford, Banja Bamba, Fatou Janha, Ismaila Bojang

Michael A Rice

A successful national program to assure sanitary quality of molluscan shellfish requires a multi-disciplinary and multi-agency governmental training, data collection, policy development and management effort in collaboration with members of the shellfish industry. The Tanbi Wetlands and other estuaries of Gambia support shellfisheries for oysters, Crassostrea tulipa, and the senile ark, Senelia senilis, conducted by the TRY Oyster Women’s Association. With low shellfish prices and a small local market, a Gambian National Shellfish Sanitation Program (GNSSP) was begun as a means to boost consumer confidence and allow market access to Gambia’s robust seasonal international tourism trade. Gambian officials began training …

The Shellfish Corner -- Vibrios And Shellfish, Michael Rice

Michael A Rice

Pathogenic Vibrios are becoming an increasing problem for shellfish producers in North America and elsewhere. This paper reviews current research into the pathogenic nature of Vibrios and provides some practical advice for avoiding the propagation of Vibrios on shellfish farms nd in wild harvest molluscan shellfish.

Isolation And Characterization Of Microalgae Strains For Live Food In Sulawesi, Indonesia, Wa Iba, Michael Rice

Michael A Rice

Four strains of diatoms were isolated from the waters of Kendari Bay in Southeast Sulawesi, Indonesia, including strains of Melosira moniliformis, Chaetoceros, sp. and a larger species that is likely to be Tetraselmis weissflogii. Isolated strains have exhibited a wide range of salinity tolerances in the 20 to 35 psu range. Strains of isolated phytoplankton were able to reach high densities consistent with strains suitable for use as aquaculture feeds. One strain Kbl-3 attained lipid content of 22.3 percent per gram dry weight at salinity of 35 psu, suggesting that it may be a good feed for shrimp larvae. Most …

The Shellfish Corner--Shellfish Sanitation And The Price Of Shellfish, Michael A. Rice

Michael A Rice

Prices of raw molluscan shellfish in different countries around the world are tied to perceived risk of becoming ill if consumed. Wholesale prices of oysters in the southern New England from 1880 to 2010 are analyzed in relation to introduction of flush toilets and sewer systems in the early 20th Century, the initiation of the US National Shellfish Sanitation Program in 1925 and renewed consumer interest in consuming raw shellfish in the latter half of the 20th Century.

The Shellfish Corner -- Shellfish And The Problem Of Ocean Acidification, Michael A. Rice

Michael A Rice

The acidification of the world's oceans due to increasing atmospheric carbon dioxide concentrations is creating a problem in the dissolution of larval shells of mollusks and creating problems for shellfish hatcheries. Hatcheries can mitigate the problem by treating incoming seawater with alkaline sodium carbonate, but there is evidence that acidic sediments in some locations are a source of considerable post-settlement loss of newly set juveniles.

Microalgae In Eastern Pacific White Shrimp Hatcheries: A Review On Roles And Culture Environments, Wa Iba, Michael A. Rice, Gary H. Wikfors

Michael A Rice

Demand for shrimp, particularly the eastern Pacific white shrimp Litopenaeus vannamei (Boone 1931), will continue to increase in Asian and worldwide seafood markets. Providing shrimp farms with a robust, healthy, and continuous supply of shrimp seed is a challenge that must be addressed to meet the demand. Shrimp feed during hatchery production still relies on live microalgae, despite many years of effort to find suitable full or partial-replacement diet alternatives. Successful mass production of microalgae for hatchery feed to obtain good quality shrimp seedstock depends on a number of environmental factors that determine the growth and nutritional values of various …

Extension Programming In Support Of Public Policy For The Management Of Aquaculture In Common Water Bodies, Michael A. Rice

Michael A Rice

Shellfish Corner, Michael Rice

Michael A Rice

After a hiatus of several years, Aquaculture Magazine has returned as a bimonthly publication serving the aquaculture industry. This article introduces the Shellfish Corner, the regular column on molluscan aquaculture.

The Centennial Of The Smith-Lever Act And Aquaculture Extension, Michael A. Rice

Michael A Rice

Bacterial Community Profiling Of The Eastern Oyster (Crassostrea Virginica): Comparison Of Culture-Dependent And Culture-Independent Outcomes, Kenneth J. La Valley, Steve Jones, Marta Gomez-Chiarri, Joseph Dealteris, Michael A. Rice

Michael A Rice

Tissue-associated bacterial community profiles generated using a nested polymerase chain reaction–denaturing gradient gel electrophoresis (DGGE) approach and culture-dependent and culture-independent isolation techniques were compared. Oyster samples were collected from 2 harvest areas along the coast of Maine, in the United States. Profiles from both isolation strategies were evaluated using Sorensen’s index of similarity and cluster analysis of gel banding patterns. Cultureindependent profiles were further evaluated using the Shannon diversity index. In general, the culture-dependent strategy resulted in a greater number of bands within a profile. BacterialDGGEprofiles were found to be highly similar within an isolation strategy, with a higher degree …

Gonadal Cycle Of Northern Quahogs, Mercenaria Mercenaria (Linne, 1758), From Fished And Non-Fished Subpopulations In Narragansett Bay, Dora Marroquin-Mora, Michael Rice

Michael A Rice

To determine if population density in areas closed to fishing in Narragansett Bay is causing differences in the reproductive potential of the organisms, this study used two approaches to determine the reproductive condition of the animals. The first approach consisted in employing a gravimetric condition index (CI) to evaluate the general condition of quahogs from nine different sites, 3 sites open conditionally for fishing (conditional areas) and 6 sites closed to fishing. The second approach was a determination of gonadal index (GI) of a subset of the sample sites, by histological observation of gonadal tissue sections. Initial sampling included determination …

Modified Taylor Float System For Culturing Oysters In The Gambia, Michael A. Rice

Michael A Rice

This monograph is a report of trials to grow oysters, Crassostrea tulipa, in Taylor Float plastic mesh culture bags in oyster harvesting sites in Gambia, West Africa. Oysters grew well in the gear, but adoption of the gear by local oyster farmers would be difficult due to the relatively high cost of the gear in relation to the value of oysters cultured within. Economic analysis suggested an eight-year investment payback to recover costs of the gear.

Report On Sanitary Shoreline Survey Within The Tanbi Wetlands National Park And Other Shellfish Harvesting Communities, The Gambia

Michael A Rice

Emphasis is placed on the sanitary control of shellfish because of the direct relationship between pollution of shellfish growing areas and the transmission of diseases to humans. Shellfish borne infectious diseases are generally transmitted via a fecal - oral route. To accurately assess waters for shellfish harvesting, an evaluation of the pollution sources that are likely to affect the area is required by the NSSP. The shoreline survey is conducted of the shellfish growing area shoreline and estuary to locate pollution sources that could have an effect on the water quality of the area. The shoreline survey team visited 15 …

Results Of A Preliminary Shoreline Shellfish Sanitary Survey Near Banjul, Gambia Conducted On 18 June 2011, Kanyi Babanding, Michael A. Rice

Michael A Rice

A preliminary shoreline survey was conducted along the Bund Road (frequently referred to as Bond Road) levee and the Banjul-Serrekunda Highway in the northern Tanbi Wetlands oyster harvesting area in the metropolitan Banjul area. In part this was designed as a training exercise for Gambian officials will be assuming responsibility for future shoreline surveys in the Gambia. Key identified areas of concern include the Banjul fish landing area on Bund Road utilized by a number of artisanal fishers; an over-water toilet facility for fishers near the fish landing site; evidence of illegal waste and rubbish dumping along Bund Road; an …

A Brief History Of The American Fish Culture Company 1877-1997., Michael A. Rice

Michael A Rice

The American Fish Culture Company operated for nearly 120 years from 1877-1997 in Carolina, Rhode Island growing three species of trout under the under the direction of several generations of the Hazard family of Peace Dale, Rhode Island. The company was one of the first trout producers in the United States, and was considered the largest fish farm in the country by the early 1920s. Major innovations of the company included early adoption of pelleted feeds, and the introduction of photoperiod manipulation to spawn fish out of season. The company ultimately failed due to intense competition from larger producers in …

Aquaculture In The Republic Of Georgia., Michael Rice

Michael A Rice

Aquaculture in the Republic of Georgia is dominated by the culture of brown trout, Salmo trutta grown in fish farms located on the southern slopes of the Greater Caucusus mountain range and in the Lesser Caucasus range in the southwestern region of the country. To a lesser extent, other species are farmed in the lowland valleys, including several species of carps and barbs, and a local silurid catfish. Experimental culture of mussels, Mytilus galloprovincialis is in progress on the Black Sea coast near the city of Batumi.