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The presence and relative abundance of juveniles of most of the other ten species collected is suggestive that wetlands may be important recruitment areas. ... Few rocky habitats were available (other than areas of bedrock in Back Creek and Big Barren
The reduction in mesh-size also varied between sides of the seacage and between the top and bottom areas of each side. ... The reduction of biofouling in the marine sea cage industry is important for both economic and environmental reasons.
Phillips) • Meeting with D. Liska of Pisces Marine (operators of Broome’s Head hatchery). ... The approach to selection for disease tolerance is largely a reaction to the existence of survivors in areas affected by disease.
Logbooks may provide a cost-effective method for assessing (i) recruitment in terms of the abundance of undersized kingfish, and (ii) any changes in the mean sizes of kingfish landed. ... Fisher logbooks may be the most cost-effective way to monitor
Although they do not have as high a biomass as carp, the abundance and widespread distribution of redfin perch and eastern gambusia is also likely to have significant impacts on native ... and significant increases in the abundance of alien redfin perch
In a geomorphic context (sensu Roy 1984), seagrasses grow mainly in the Marine Tidal Delta and the Central Mud Basin portions of an estuary. ... Calculations of change in cover are presented in terms of the entrance to the estuary (Marine Tidal Basin),
Species relative abundance and biomass in T4mm100 and control.95 8.2.4. Species relative abundance and biomass in T5mm200 and control.96. ... 3.2.8. Faunal composition and relative abundance. Scientific names and common names for fish species follow
2006, Baumgartner et al. in press). The exact mechanism by which this occurs remains unclear, although it is thought that a downstream moving fish may be exposed to areas of rapid ... 2007a). Analysis of these data permits detailed assessment of the fish
abundance and population structure of fish migrating through the fishway, as well as fish behaviour and environmental conditions relevant to fishway usage. ... Moreover, effective fish dispersal in coastal environments is likely to maintain the
54. Figure 5.5 Mean total fish abundance (S.E.) (a) proportion of native species in total catch (b) and abundance of four fish species (c to f) per unit effort ... Fish-habitat associations in the Barwon-Darling and Paroo Rivers. The aim of this