Assignment 6 Flashcards
explain the trend for MOLLUSC aquaculture and capture, and the 2010 production amounts
since 1950 mussels have inclined slowly. Capture has a slow incline and peaked in 2000, and at 2010 captured a total of 6.7mil. aquaculture rose significantly in 1990 and surpassed capture in early 90’s. in 2010 production was 14mil (over double capture). aquaculture is still on the rise.
explain the trend for OYSTER aquaculture and capture, and the 2010 production amounts
capture has slowly been decreasing since 1950 and at 2010 was at 150 thou. there was a valley in 1975 at 24thou. for aquaculture there was slow growth until 1990 when there was a large increase. 2010 produced 4.5mil tons
explain the trend for MUSSEL aquaculture and capture, and the 2010 production amounts
continuous growth in aquaculture, 2010 at 1.2 mil. Capture has been steady at 190 thou with a recent drop in 2010 at 87 thou.
explain the trend for SCALLOP aquaculture and capture, and the 2010 production amounts
slow increase of capture, 2010 at 84 thou. Aquaculture was almost nothing until a large leap late 80s early 90s to 1.1 mil, then a drop and another large increase in 2005 to current 1.7 mil.
explain the trend for CLAMS aquaculture and capture, and the 2010 production amounts
aquaculture barely exists for clams, at a near-constant of 15 thou. slight recent increase. Capture is main production. peaked in 1990 at 580 thou, and 2010 at 330 thou.
ruditapes philippinarum
manila clam
Sinonovacula constricta
Chinese razor clam
Crassostrea gigas
pac oyster
Anadara granosa
blood cockle
what is the percent representation of molluscs in global aquaculture?
a global total, and break it down into groups.
molluscs account for 17% of global aquaculture, with clams, cockels and arkshells the most prominent (6%). Oysters are the second most prominent at 5% total global aquaculture.
mussels: 2%, scallop +pectans: 2%
what are the four main groups for mollusc aquaculture?
cockels and arkshels, oysters, mussles, and scallops + pectans.
