176 M.R. Jacinto et al. / Fisheries Research 161 (2015) 174–181 Fig. 1. Fish Vool study sites. Table 4 Vulnerability category. Vulnerability category Score Low Medium High 1–2 3–4 5 fishing wharfs in barangay Cawit, Zamboanga City were selected as study sites (Fig. 1) on the basis of data availability and productivity of tuna and sardine resource in the area, respectively. Fish production in General Santos mainly consists of large pelagic fishes such as yellowfin tuna and other scombrids, whereas Zamboanga City is well known for the production of small epipelagic fishes (i.e., sardines, round scads, and mackerels). 2.2. Selection of sectoral commodity sites 2.3. Key informant interview The General Santos Fish Port Complex in barangay Tambler, General Santos and the Alberto Molina Requinto, Mega, and Universal Site selection was conducted in coordination with the BFAR Regional Office and National Centers. During the site evaluation, Table 5 Point class interval and corresponding rank classifications for the three major components. Major Components Number of variables Minimum total score possible Maximum total score possible Point class interval (score to rank system conversion) Exposure Sensitivity Adaptive capacity 3 4 7 3 4 7 15 20 35 3–7 Low (L) 8–11 Medium (M) 12–15 High (H) 4–9 Low (L) 10–15 Medium (M) 16–20 High (H) 7–17 Low (L)18–27 Medium (M)28–35 High (H)