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Optimization of Atlantic Sea Scallop (Placopecten Magellanicus) Aquaculture in the Gulf of Maine /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Optimization of Atlantic Sea Scallop (Placopecten Magellanicus) Aquaculture in the Gulf of Maine // Christopher Noren.
Author:	Noren, Christopher,
Description:	1 electronic resource (174 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-07, Section: B.
Contained By:	Dissertations Abstracts International86-07B.
Subject:	Mollusks. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31823015
ISBN:	9798302373755

Optimization of Atlantic Sea Scallop (Placopecten Magellanicus) Aquaculture in the Gulf of Maine /
Noren, Christopher,

Optimization of Atlantic Sea Scallop (Placopecten Magellanicus) Aquaculture in the Gulf of Maine /Christopher Noren. - 1 electronic resource (174 pages)

Source: Dissertations Abstracts International, Volume: 86-07, Section: B.

In the 1960s a Japanese fisherman in Mutsu Bay, wrapped an onion bag around a traditional cedar leaf oyster spat collector allowing larval spat to enter and settle on the collector while preventing juvenile scallops from falling out after settlement. This simple innovation pioneered the global scallop aquaculture industry that is currently worth an estimated $5.8 billion in annual scallop sales. Rapid growth of scallop aquaculture has been seen in China, Japan, Korea, Peru, and Chile following the establishment of successful culture methods. In Japan, national scallop production rose from 5,000 mt in 1969 to over 100,000 mt in 1975; in 2022, Japan reported a net scallop exportvalue of $612 million (¥91.1 billion). Meanwhile, the United States imported $3.73 billion of scallop products in 2022, representing a larger trend in its general seafood deficit, with 75% of seafood imported to the United States. In an effort to alleviate this dependence on foreign imports and capture a portion of the scallop market cap, recent research has been invested into aquaculture of the commercially valuable Atlantic sea scallop (Placopecten magellanicus) in Maine.Aquaculture is a rapidly developing industry in Maine, from 2007 to 2017 sales from aquaculture production nearly tripled from $50 million to $137.1 million. Much of this growth, particularly in employment and production volume, can be attributed to shellfish aquaculture (i.e., oysters, mussels, clams, scallops, etc). The Atlantic sea scallop is native to Maine, and a species of high aquaculture opportunity in the region. In 1999, a collaborative effort between the Aomori Prefecture in Japan and Maine resulted in a scallop aquaculture technology transfer partnership that has continued until the present. Multiple trips from industry and researchers operating in Maine in relation to scallop aquaculture have benefitted from this partnership and in 2021, DMR listed aquaculture scallop landings separately from wild-capture scallops at a total landing weight of 369 lbs (167.4 kgs) adductor-only for the first time. Most recently in 2023, production increased to 1,723 lbs (781.5 kgs) representing an almost five-fold increase in production in just two years.While industry growth has been promising, it is important to remember that scallop aquaculture in Maine is an incipient industry. Research into optimization and automation of processes is necessary for long-term success of the industry. Decades of research in Canada from 1980-2000 were similarly promising, and even resulted in several commercial scale operations; however there is little evidence of that industry spreading beyond a small-scale, cottage opportunity today. This dissertation addresses grower concerns identified by Struan Coleman in 'Developing a bioeconomic framework for scallop culture optimization and product development'(M.S. Coleman, 2021) highlighting seven key themes: (1) Site Selection, (2) Spat Supply, (3) Biofouling Control, (4) Mechanization (Automation), (5) Biotoxins, (6) End-Market Uncertainty, and (7) Farm Size/Scale.To address site selection, biofouling, mechanization (automation), and farm size/scale, we conducted a two year study of on-farm grow-out. Scallop aquaculture encompasses three broad phases on the farm: (1) nursery culture where settled scallop seed is grown to 3-15mm with very little maintenance required (approximately one year post-settlement), (2) intermediate culture where young scallops are transferred to a lower stocking density (approximately one to two years old) , and (3) grow-out culture where scallops are transferred to their final grow-out system until harvest occurs after up to two years (approximately two to four years old).

English

ISBN: 9798302373755Subjects--Topical Terms:

2109455
Mollusks.

Optimization of Atlantic Sea Scallop (Placopecten Magellanicus) Aquaculture in the Gulf of Maine /
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520 $a In the 1960s a Japanese fisherman in Mutsu Bay, wrapped an onion bag around a traditional cedar leaf oyster spat collector allowing larval spat to enter and settle on the collector while preventing juvenile scallops from falling out after settlement. This simple innovation pioneered the global scallop aquaculture industry that is currently worth an estimated $5.8 billion in annual scallop sales. Rapid growth of scallop aquaculture has been seen in China, Japan, Korea, Peru, and Chile following the establishment of successful culture methods. In Japan, national scallop production rose from 5,000 mt in 1969 to over 100,000 mt in 1975; in 2022, Japan reported a net scallop exportvalue of $612 million (¥91.1 billion). Meanwhile, the United States imported $3.73 billion of scallop products in 2022, representing a larger trend in its general seafood deficit, with 75% of seafood imported to the United States. In an effort to alleviate this dependence on foreign imports and capture a portion of the scallop market cap, recent research has been invested into aquaculture of the commercially valuable Atlantic sea scallop (Placopecten magellanicus) in Maine.Aquaculture is a rapidly developing industry in Maine, from 2007 to 2017 sales from aquaculture production nearly tripled from $50 million to $137.1 million. Much of this growth, particularly in employment and production volume, can be attributed to shellfish aquaculture (i.e., oysters, mussels, clams, scallops, etc). The Atlantic sea scallop is native to Maine, and a species of high aquaculture opportunity in the region. In 1999, a collaborative effort between the Aomori Prefecture in Japan and Maine resulted in a scallop aquaculture technology transfer partnership that has continued until the present. Multiple trips from industry and researchers operating in Maine in relation to scallop aquaculture have benefitted from this partnership and in 2021, DMR listed aquaculture scallop landings separately from wild-capture scallops at a total landing weight of 369 lbs (167.4 kgs) adductor-only for the first time. Most recently in 2023, production increased to 1,723 lbs (781.5 kgs) representing an almost five-fold increase in production in just two years.While industry growth has been promising, it is important to remember that scallop aquaculture in Maine is an incipient industry. Research into optimization and automation of processes is necessary for long-term success of the industry. Decades of research in Canada from 1980-2000 were similarly promising, and even resulted in several commercial scale operations; however there is little evidence of that industry spreading beyond a small-scale, cottage opportunity today. This dissertation addresses grower concerns identified by Struan Coleman in 'Developing a bioeconomic framework for scallop culture optimization and product development'(M.S. Coleman, 2021) highlighting seven key themes: (1) Site Selection, (2) Spat Supply, (3) Biofouling Control, (4) Mechanization (Automation), (5) Biotoxins, (6) End-Market Uncertainty, and (7) Farm Size/Scale.To address site selection, biofouling, mechanization (automation), and farm size/scale, we conducted a two year study of on-farm grow-out. Scallop aquaculture encompasses three broad phases on the farm: (1) nursery culture where settled scallop seed is grown to 3-15mm with very little maintenance required (approximately one year post-settlement), (2) intermediate culture where young scallops are transferred to a lower stocking density (approximately one to two years old) , and (3) grow-out culture where scallops are transferred to their final grow-out system until harvest occurs after up to two years (approximately two to four years old).
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