ISSN:1064-1262    

DOI:10.1080/10641269309388536

出版商:Taylor & Francis Group    

年代:1993

数据来源: Taylor

摘要:

Commercial production of Sydney rock oysters(Saccostrea commercialis)in Australia began simultaneously in New South Wales (NSW) and southern Queensland around 1870. It began with the exploitation of dredge beds, intertidal oyster beds, and with the placement of a range of catching and growing substrates such as sticks, slabs of rocks, and shell placed on intertidal mud flats. As dredge beds were depleted and problems with accumulation of silt and mudworm (Polydorasp.) increased, the industry progressively adopted the stick and tray culture on intertidal racks. However, the use of sticks for growing is now rapidly diminishing as farmers are learning to scrape small (4 to 8 mm) spat off sticks and grow them in specially adapted trays or other growing containers (single‐seed culture). At its peak in 1976–1977, the combined NSW and southern Queensland industry produced 9267 t (wet weight including shell) or 154,454 bags (1200 oysters per bag), but it has declined over the last decade to a production of 5306 t or 88,429 bags in 1990–1991, with a total value of A$30.1 million.

ISSN:1064-1262    

DOI:10.1080/10641269309388537

出版商:Taylor & Francis Group    

年代:1993

数据来源: Taylor

摘要:

Harmful algal blooms occur worldwide and their associated phycotoxins are accumulated by filter‐feeding bivalve molluscs. Because only the adductor muscle of scallops has been traditionally marketed, scallops are not usually included in routine monitoring programs. A renewed interest in marketing both whole and “roe‐on”; scallops from various geographic regions along with intensified aquaculture ventures in areas prone to toxic blooms have provoked public health concerns regarding the safety of this resource.

ISSN:1064-1262    

DOI:10.1080/10641269309388538

出版商:Taylor & Francis Group    

年代:1993

数据来源: Taylor

摘要:

The paper reviews and evaluates shrimp pond culture in the Philippines and its ecological and socioeconomic effects. The intertwined histories of the country's mangrove forests and culture ponds are treated in depth; brackishwater aquaculture and the different shrimp culture systems are described. Intensive farming is discussed in terms of feed and water requirements, chemical inputs and waste production, and the attendant organic and nutrient overloading, longevity and toxicity of chemicals, development of antibiotic resistance, and introduction of exotic species. Most of the discussion is based on the Philippine experience, but relevant case studies from other shrimp‐growing countries, notably Thailand and Indonesia, and also from salmon cage culture in the temperate zone, are included.

ISSN:1064-1262    

DOI:10.1080/10641269309388539

出版商:Taylor & Francis Group    

年代:1993

数据来源: Taylor

ISSN:1064-1262    

DOI:10.1080/10641269309388540

出版商:Taylor & Francis Group    

年代:1993

数据来源: Taylor