ScLi13- Identify elements in results that provide informatio…
ScLi13- Identify elements in results that provide information on how study variables behaved The following excerpt belongs to the study Anthropogenic Marsh Impoundments Alter Collective Tendency in Schooling Fish coauthored by Dr. Kevin Boswell (professor in our bio department). “The objective of this study was to determine whether the collective tendency of schooling fish is modulated by anthropogenically introduced habitat complexity, prior to and in response to predator attack. To achieve this objective, we compared collective state of fish schools before and during predator attack, between an open salt marsh canal and a Water Control Structure (man-made). In those environments, we observed schools of free-ranging juvenile gulf menhaden (Brevoortia patronus) The collective behavioural state of each fish school was quantified using six behavioural parameters : school area, group speed, angular velocity, orientational alignment (polarization), coherence of rotation (rotational order) (Attanasi et al. 2014), and correlation strength (degree of influence on neighbours) (Cavagna et al. 2008; Handegard et al. 2012). we predict that fish schools in the vicinity of a WCS will adjust their schooling tendencies and form less aligned shoals, exhibiting increases in area and decreases in polarization compared to the natural marsh environment. ” Which of the following statements in the results section address the predictions mentioned above?