. Bulletin - Southern California Academy of Sciences. Science. BARRED SAND BASS SPAWNING MOVEMENTS 133. I â ' [ 1 1 ⢠' I ' ⢠¥' â Â¥' ' 1 â â Â¥' â t â â I â V â t â â t â Â¥ 1 ' 'I 7 14 21 28 35 42 49 56 63 70 77 84 91 98 105 112 119 Days at liberty (7 d bins) Fig. 3. Frequency of tag returns over time by peak spawning season tag month (lines with symbols) and all fish combined (gray bars) for fish that were tagged at Huntington Flats, CA and recaptured back at that location within the same year, historical California Department of Fish and Game tagging project (1960s and 1990s). grounds
. Bulletin - Southern California Academy of Sciences. Science. BARRED SAND BASS SPAWNING MOVEMENTS 133. I â ' [ 1 1 ⢠' I ' ⢠¥' â Â¥' ' 1 â â Â¥' â t â â I â V â t â â t â Â¥ 1 ' 'I 7 14 21 28 35 42 49 56 63 70 77 84 91 98 105 112 119 Days at liberty (7 d bins) Fig. 3. Frequency of tag returns over time by peak spawning season tag month (lines with symbols) and all fish combined (gray bars) for fish that were tagged at Huntington Flats, CA and recaptured back at that location within the same year, historical California Department of Fish and Game tagging project (1960s and 1990s). grounds for several weeks. These findings suggest barred sand bass, like other serranids, form transient spawning aggregations (Domeier and Colin 1997). Although more tagged fish displayed resident behavior, our results could potentially be biased toward fish resident to spawning grounds because other locations may not have been fished as intensely during non-spawning season. However, it is also possible that spawning movements were completely missed or that some fish were tagged in locations outside of spawning areas and did not migrate to spawn. Mason and Lowe (2010) reported that a portion of acoustically monitored adult barred sand bass at Santa Catalina Island, CA, showed year-round site fidelity to their home ranges, whereas others were not detected in these areas during spawning season. This type of "polymorphic movement behavior" has also been described for other transient aggregate spawners (Zeller 1998; Egli and Babcock 2004; Semmens et al. 2010). Movement to and from Spawning Locations Non-spawning residences were generally north of spawning grounds, implying migration directionality. Moreover, our data suggest spawning aggregations are not comprised of migrants from the same location. Indeed, fish tagged at Newport Bay did not migrate to the same (or to the nearest) spawning grounds. Zeller (1998) reported that coral trout, Plectropomus lea
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