Tag broodstock

A research project aimed at improving shrimp hatcheries’ welfare practices shows there is a viable alternative to a common spawn-inducing technique. 

Aquaculture of high-value white sturgeon is in its early phases in British Columbia, Canada. 
Given the long time required to produce caviar, licensed producers are looking at developing markets for value-added products and byproducts based on sturgeon meat. 

A National Broodstock Improvement Network for aquaculture could help to break the link between inbreeding and hatchery size. 

Biosecurity can be defined as the operating procedures that shrimp hatchery and farm personnel use to minimize the impacts of disease on their animals. Proper biosecurity measures slow the movement of pathogens and protect unaffected areas. 

The project produces specific-pathogen-free broodstock with good reproductive performance, fast growth and high survival. More than 60 hatcheries in India have received broodstock from the program. 

There is a clear difference between the shrimp postlarvae traits that are economically important in Central and South America versus those of Asia, creating a challenge for breeders to satisfy the somewhat opposing breeding goals the regions demand. 

Giant clams are a resource utilized by the food and aquarium trade markets. However, aquaculture production is low and does not supply the demand. Ready availability of broodstock and seed is a major problem, as well as practical and consistent methods for inducing spawning. 

The domestication of green tiger shrimp (Penaeus semisulcatus) as a source for seedstock could help expand aquaculture in Egypt. Trials by the authors compared the reproductive performance of wild male/wild female pairings with that of pond-reared male/pond-reared female and wild male/pond-reared female pairings. 

Since 2001, Moana Technologies has worked toward providing domesticated, genetically improved and specific pathogen-free (SPF) black tiger shrimp to farmers in Asia. Based in Hawaii, USA, Moana built a breeding base on wild-caught broodstock from seven locations in Asia. 

The Inter-American Tropical Tuna Commission Achotines Laboratory in southern Panama is the world’s only facility with nearly year-round availability of tuna eggs and larvae. A study is comparing the reproductive biology, genetics and early life history of yellowfin and Pacific bluefin tuna. 

Proper management of broodstock nutrition encompasses providing the right amounts of the proper specialized nutrients during the right developmental stages. 

The University of the Canary Islands in Spain is researching yellowtail broodstock management and larval rearing to promote aquaculture diversification in Europe. 

In Peru, some wild cockle communities have been so overfished that total fishing bans are being considered. A project was therefore established to develop sustainable spat production as a crucial step toward the implementation of a conservation strategy for blood cockles that fosters social aquaculture and stock enhancement. The project rested on the establishment of protocols for reproduction, larval culture and seeding; development of diagnostic tools for molluscan pathogens and the study of blood cockles’ genetic diversity. 

With a hatchery system that involves collection of eggs and larvae, and hormonal sex reversal, it is possible to produce billions of monosex tilapia (all-male) fry to satisfy demand and accelerate aquaculture development. 

The wide distribution and ongoing improvement of GIFT tilapia in Sri Lanka is raising living standards and employment for women in rural areas.