Artemia, in all stages of its life cycle, is suitable food for most diversi¢ed groups of aquatic animals. Although its size at di¡erent stages restricts its use as a food for some groups of ¢sh, this problem can be overcome using selective breeding techniques. The formulation of any selective breeding programme calls for a proper understanding of the genetic architecture of the economically important traits of the population under study. Thus, heritability for certain important life history and reproductive traits was estimated in Artemia franciscana from the Great Salt Lake, Utah. In the present study, the sexwise heritability values for growth and reproduction traits were estimated using parent^o¡spring regression. The phenotypic parameters for the same traits are also recorded. The naupliar length was 487.072.0 and 490.671.8 mm for males and females, respectively, whereas the heritability values for naupliar length were 0.585170.2153 and 0.376670.1899 respectively. The length at 3 and 6 days of age were 1.8770.03 and 4.1070.08 mm, respectively, for males whereas1.8770.03 and 4.3070.08 mm, respectively, for females. The heritability values for length at 3 and 6 days of age for males were 0.327270.3651 and 0.496570.2466, respectively, whereas the respective values for the females were 0.116770.3841 and 0.022270.2971. The estimates of length at ¢rst brood, pre-reproductive period and number of o¡-spring in ¢rst brood were 10.0970.23 mm, 16.007 0.23 days and 53.5771.37 days, respectively, whereas the heritability values for respective traits were 0.040370. 1078, 0.323470.2874 and 0.340470.2202.

Bi‐directional selection for smaller naupliar size (SNS) and bigger naupliar size (BNS) was practiced to develop two divergent lines. The efficacy of bi‐directional mass selection in Artemia franciscana was evaluated by comparing the predicted genetic gains with the realized genetic gains. Two sets of predictions were made using two heritability estimates, e.g., the heritability estimate from full‐sib analysis (h2) and the estimate from regression of offspring on mid parent (bop). Predictions with the full‐sib heritabilities were of very high magnitude as compared with predictions with bop heritabilities. The predictions based on bop were more or less in agreement with realized genetic gain, while the predictions with heritability estimates based on full‐sib analysis were much higher than the realized gains. Ratios of realized gain to predicted gain based on full‐sib heritabilities were 0.2302 and 0.2152, respectively, for males and females of the SNS line, and 0.0471 and 0.2248, respectively, for males and females of the BNS line. Ratios of realized gain to predicted gain based on bop were 1.5348 and 0.6069 for males and females of the SNS line and 0.1028 and 0.9503 for males and females of the BNS line. Ratios of realized gain to predicted gain based on full‐sib heritability were of low magnitude in all the cases as the heritability estimates based on full‐sib analysis were inflated by non‐additive genetic variance. The ratios of realized gain to predicted gain based on bop were high in both sexes of SNS and females of BNS, indicating high efficacy of selection as bop includes only additive genetic variance. However, it was of low magnitude in BNS males. Thus, the heritability estimates based on regression of offspring on mid parent (bop) are more reliable than that of heritability estimates based on full‐sib analysis (h2) for predicting the selection response in Artemia.

Rivers play a major role in shaping the development of cities, as many major ones across the world have originated by the banks of rivers. Such river systems have not only been used for irrigation, drainage and supply of potable water but they also possess a close relationship with the social fabric. The Mutha riverfront in Pune is multi functional with bulk of its premises being residential, commercial and institutional buildings along with some heritage structures. The rapid urbanization of the city has adversely affected the river with various forms of pollution, becoming a major issue for the city authority. This phenomenon has lead to the detachment of the city from the river. In view of this demographical change, it becomes essential for any city authority to restore such a valuable resource to its lost glory, thereby enhancing its appropriate role in transforming the vacant riverfront to a place of planned development. The study provides a set of planning and design principles that will allow communities to reclaim urban river edges in the most ecologically sound and economically viable manner. This study would also guide planners, mayors, public works departments, environmental officials, river advocates, and the general public in their search for effective riverfront restoration covering key topics related to human interaction with rivers and providing a set of essential strategies to help communities to achieve more with their riverfront revitalization efforts.