| SLEEPY HOLLOW STEELHEAD REARING FACILITY | |||||||||||||||
| Fish Rearing Summary: May 14, 2008 - January 2009 | |||||||||||||||
| Holding Location | # Fish Stocked (1) | # Morts (Disease)(2) | # Morts (Unaccount-ed for) (3) | Total # Released | % Survival | Ave Condition Factor (K) | # by Release Location (4) | Notes | |||||||
| Rearing Channel 11 Pools (smaller YOY) | 43,106 | 8,156 | 21,472 | 13,478 | 31.0 | 1.17 | 2,946 -- Tank 3 10,532 -- River | Smaller YOY fish were placed into the RC pools, to fill, from downstream to upstream as they were brought into the Facility. Size at release varied greatly from ~ 3 - 8 inches FL. Most fish were in the 5 - 7 inch range (130 - 180 mm FL). | |||||||
| Rearing Channel 2 Pools (larger YOY) | 3,502 | 1,078 | 1,208 | 1,216 | 35.0 | 1.14 | 647 -- Tank 3 569 -- River | Larger YOY fish were graded out after quarantining and placed in one of two separate pools. Size range at release was 3 - 9 inches (FL). | |||||||
| Rearing Channel 1 Pool (Lrg 1+ Juvs) | 27 | 0 | 0 | 27 | 100.0 | 1.13 | 27 -- Tank 3 0 -- River | Fish were ~ 2 yrs old at release. Sizes ranged from approx. 8 - 11 inches (FL). | |||||||
| Totals | 46,635 | 9,234 | 22,680 | 14,721 | 32% | 1.16 | 3,620 - Tank 3 (25%) 11,101 - River (75%) | ||||||||
| 20% | 49% | 32% | |||||||||||||
| Notes: | |||||||||||||||
| 1. Fish were segregated in separate RC pools by size/age at the start of the rearing season. | |||||||||||||||
| 2. Disease was primarily bacterial infection (Flavobacterium columnare), but there were minor outbreaks of Ich. | |||||||||||||||
| High concentration salt baths were used throughout the season to treat for infections. | |||||||||||||||
| 3. Unaccounted-for-fish [# fish stocked - (# of morts + # released)] were likely due to predation by larger fish. | |||||||||||||||
| 4. Fish that were moved from the RC to Tank 3 (held there until the river flow is up) were greater than 150 mm (FL). T3 fish will be released into the | |||||||||||||||
| lower river or the lagoon once it reconnects with the river. Fish released into the Carmel River downstream of Scarlett Well (RM 9.1) were <150 mm FL. | |||||||||||||||
| "Morts" refer to mortalities. "FL" refers to fork length - the length of the fish from snout to the fork in its tail. | |||||||||||||||
| "Condition Factor" refers to a mathematical formula for determining the physiological state of a fish, including its reproductive capacity. It is calculated by | |||||||||||||||
| dividing fish weight by length cubed (Wg/Lmm3). The heavier a fish for a given length, the higher its condition factor (K). (x 10-5) | |||||||||||||||
| u\staff/word/boardpacket/2009/20090129/InfoItems/25/item25_exh25a | |||||||||||||||