TN00176 CHANNEL CATFISH ICTALURUS PUNCTATUS
| Lifestage | Environmental Association |
| General | Dissolved Oxygen: Specified in Comments |
| General | Water pH: Specified in Comments |
| General | Density of Aquatic Vegetation: Moderate |
| General | Density of Aquatic Vegetation: High |
| General | Gradient: Low |
| General | Water pH: Specified in Comments |
| General | Salinity: Specified in Comments |
| General | Dissolved Oxygen: Moderate [5-7 mg/l] oxygen concentrations |
| General | Water pH: Between 6.5-8.5 |
| General | Aquatic Vegetation [specified type]: Unknown |
| General | Water Depth Preference: 1-5 ft. |
| General | Flow: Medium streams [50-1000 cfs mean annual flow] |
| General | Bottom Type [Aquatic]: Rubble |
| General | Aquatic Features: Riffles |
| General | Gradient: Moderate |
| General | Water Level: Semi-permanently flooded areas |
| General | Turbidity: Clear water |
| General | Substrate: Sand |
| General | Bottom Type [Aquatic]: Sand |
| General | Bottom Type [Aquatic]: Gravel |
| General | Bottom Type [Aquatic]: Mud or silt |
| Egg | Dissolved Oxygen: Specified in Comments |
| Juvenile | Turbidity: Specified in Comments |
| Juvenile | Water Temperature: Specified in Comments |
| Breeding Adult | Water Temperature: Below 15 degrees C |
Comments on General Environmental Associations
00030 - AT 25, 30, AND 35 DEGREES C LETHAL OXYGEN LEVELS ARE0.95, 1.03, AND 1.08 PPM RESPECTIVELY *TN5176* 00030 - AT 25 DEGREES C AND WITH D.O. NEAR SATURATION EMBRYOS DEVELOP PROPERLY, BUT AT LESS THAN 2.4 AND 4.2 PPM SURVIVAL IS STATISTICALLY LESS SOME WILL HATCH AT 1.7 PPM AT ALL REDUCED D.O.CONCENTRATIONS AT 25 AND 28 DEGREES C EMBRYO PIGMENTATION IS LIGHTER, HATCHING PERIOD IS EXTENDED, FEEDING IS DELAYED, AND GROWTH IS REDUCED *TN5176* 00050 - SURVIVAL OF YOUNG DURING FIRST YEAR IS MUCH LOWER IN CLEAR THAN IN TURBID PONDS (PROBABLY DUE TO INCREASED SUSCEPTIBILITY TO PREDATION) AND THIS IS PROBABLY ALSO TRUE OF STREAMS *TN5071* 00020- JUVENILES EXPOSED TO RAPID TEMPERATURE CHANGES HAVE SHOWN DECREASED SWIMMING PERFORMANCE *TN5176*. 99999S=OPTIMAL LACUSTRINE HABITAT ASSUMING ADEQUATE H20 QUALITY: WARM, STABLE WATER TEMP. (SUMMER 25-30 C); LARGE SURFACE AREA (>500HA); MODERATE-TO-HIGH TURBIDITIES (<100 JTU) AND ABUNDANT COVER (>40% IN AREAS <5 M DEEP) *817*. OPTIMAL RIVERINE HABITAT ASSUMING ADEQUATE WATER QUALITY; WARM, STABLE WATER TEMP. (SUMMER 25-31 C); ABOUT 40-60% OF AREA IN DEEP POOLS; AND ABUNDANT COVER IN THE FORM OF LOGS, BOULDERS, CAVITIES AND DEBRIS (>40% OF POOL AREA) *817*. TDS OF 100-350 PPM ARE OPTIMUM *817*.
Comments on Limiting Environmental Associations
0
Comments on Adult Environmental Associations
00020S=FOR ADULTS: < 18 C TO > 33 C *817*. 00220S=PREFERRED < 1.7 PPT *1454*. SALINITIES > 11 PPT IMPAIR GROWTH *817*. 00030S=STRESS CAUSED BY OXYGEN LEVELS LESS THAN 3 PPM RETARDS GROWTH *788*.
Comments on Juvenile Environmental Associations
00050S=SURVIVAL OF YOUNG DURING FIRST YEAR IS MUCH LOWER IN CLEAR THAN IN TURBID PONDS (PROBABLEY DUR TO INCREASED SUSCEPTIBILITY TO PREDATION), AND THIS IS PROBABLEY ALSO TRUE OF STREAMS *TN5071*. JUVENILES EXPOSED TO RAPID TEMPERATURE CHANGES HAVE SHOWN DECREASED SWIMMING PERFORMANCE *TN5176*.
Comments on Larval Environmental Associations
00220S=OPTIMAL SALINITIES 0-5 PPT *817*.
Comments on Egg Environmental Associations
00030=AT 25 DEGREES C AND D.0. NEAR SATURATION, EMBRYOS DEVELOP PROPERLY. BUT AT LESS THAN 2.4 AND 4.2 PPM, SURVIVAL IS STATISTICALLY LESS' SOME WILL HATCH AT 1.7 PPM; AT ALL REDUCED OXYGEN CONCENTRATIONS WITH TEMPS. AT 25 AND 28 DEGREES C, EMBRYO PIGMENTATION IS LIGHTER, THE HATCHING PERIOD IS EXTENDED, FEEDING IS DELAYED, AND GROWTH IS REDUCED *TN5176*. 00220S=SUCCESSFUL SPAWNING: <2 PPT SALINITY *817*.
| References/Lifestage | Reference Numbers |
| General | TN5072, TN5175, 4205, TN5071, TN5176 |
| Juvenile | TN5071, TN5176 |
| Egg | TN5176 |