Early development and buccal incubation in the fork-tailed catfish Arius graeffei Kner & Steindachner (Pisces : Ariidae) from the Clarence River, New South Wales

1985 ◽  
Vol 36 (3) ◽  
pp. 405 ◽  
Author(s):  
MA Rimmer
Keyword(s):  
Early Development ◽  
Brood Size ◽  
New South ◽  
New South Wales ◽  
Oral Epithelium ◽  
Average Increase ◽  
Brooding Period ◽  
South Wales ◽  
Eggs And Larvae ◽  
Branchial Region

Fertilized oocytes of A. graeflei ranged from 12.3 to 15.2 mm in diameter (mean 13.3 mm). Eggs and larvae were incubated orally by the male; maximum observed brood size was 83. The branchial region of brooding males became distended to accommodate the eggs and larvae, and the oral epithelium thickened to cover the palatine tooth patches. The brooding period lasted from 6 to 8 weeks, with hatching at 4-5 weeks. Larvae began feeding on plankton soon after hatching, and juveniles were up to 59 mm total length when released. The average increase in weight from fertilization to release was 20%.

Evaluation of postharvest infiltration of calcium to delay the ripening of avocados

1988 ◽  
Vol 28 (6) ◽  
pp. 801 ◽  
Author(s):  
RBH Wills ◽  
S Sirivatanapa ◽  
Sirivatanapa Somjate
Keyword(s):  
New South ◽  
New South Wales ◽  
Vacuum Infiltration ◽  
Average Increase ◽  
Significant Delay ◽  
Average Delay ◽  
Ripening Time ◽  
South Wales

Postharvest vacuum infiltration of calcium into mature but unripe Hass and Fuerte avocados obtained from 80 growers in the 3 major growing districts in Australia over 2 seasons delayed the time to ripen compared with untreated fruit; but the magnitude of the response varied. Hass fruit from 66% of growers in the Murray Valley showed a significant delay in ripening and the average increase in fruit from all growers was 45% over that of untreated fruit. The response of Fuerte fruit was similar between districts, with an average delay in ripening time of about 30% and with fruit from 60% of growers having a significant increase. Hass fruit from North Queensland and northern New South Wales gave the lowest average delay in ripening of about 10% and an increased delay was significant for fruit from 25% of growers. The quality of ripe Hass fruit was not affected by calcium infiltration, whereas a slight decrease in the quality of Fuerte fruit was observed.

Growth, Feeding and condition of the fork-tailed catfish Arius graeffei Kner & Steindachner (Pisces : Ariidae) from the Clarence River, New South Wales

1985 ◽  
Vol 36 (1) ◽  
pp. 33 ◽  
Author(s):  
MA Rimmer
Keyword(s):  
Visceral Fat ◽  
Condition Factor ◽  
New South ◽  
Feeding Activity ◽  
New South Wales ◽  
Gonadal Maturation ◽  
Similar Length ◽  
Relative Condition Factor ◽  
South Wales ◽  
Eggs And Larvae

Both sexes of A. graeffei have similar length-weight relationships and mature at approximately the same size. Relative condition factor decreased in winter when water temperatures dropped to minimum. Feeding activity in females decreased before spawning, and males ceased feeding while brooding eggs and larvae. Gonadal maturation and buccal incubation were associated with decreases in stored visceral fat and hepatosomatic ratio, respectively.

Wheat crop surveys in southern New South Wales. 1. Some factors influencing grain protein

1965 ◽  
Vol 5 (19) ◽  
pp. 487 ◽  
Author(s):  
AC Taylor
Keyword(s):  
New South ◽  
New South Wales ◽  
Grain Protein Content ◽  
Wheat Crop ◽  
Grain Protein ◽  
Regression Analyses ◽  
Average Increase ◽  
Sowing Time ◽  
Factors Influencing ◽  
South Wales

Three surveys in southern New South Wales assessed the importance of a number of agronomic factors on grain protein content. Grain from clover ley areas had an average of 1.3 per cent more protein than grain from crops without a clover ley background. Multiple regression analyses of the 1961 and 1963 data from clover ley crops showed that each year of ley was associated with an average increase of 0.14 per cent protein. Each week's delay of sowing beyond April 1, was associated with an average increase of 0.17 per cent grain protein. Amount of superphosphate applied to ley, intensity of cropping, and length of fallow had no effect or inconsistent effects on grain protein. With crops after natural leys only sowing time had a consistent effect on grain protein. The regression was the same as for crops with a clover ley background.

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