Trait completeness | 86% |
Total data | 132 |
References | 18 |
Author: Fabrice Téletchéa
License: All rights reserved
Trait id | Trait | Primary data | Secondary Data | References |
---|---|---|---|---|
1 | Oocyte diameter | 0.79 [Before fertilization], range of 0.55-0.70 for egg removed from ovaries | 0.62 mm | Scott and Crossman, 1973 |
1 | Oocyte diameter | 0.6-0.8 [Not specied, but seems unswollen] | 0.7 mm | Mittelbach and Persson, 1998 |
1 | Oocyte diameter | 0.7-0.89 [Unfertilized egg] | 0.79 mm | Stanley and Danie, 1983 |
1 | Oocyte diameter | Mature ova : 0.75-0.80 | 0.78 mm | Mansuetti, 1961 |
2 | Egg size after water-hardening | 0.92 [After fertlization] | 0.92 mm | Scott and Crossman, 1973 |
2 | Egg size after water-hardening | 0.65-1.09 [Fertilized egg], water hardening is complete within 15 to 20 min at 18°C | 0.87 mm | Stanley and Danie, 1983 |
2 | Egg size after water-hardening | 0.80-0.86 [Swollen eggs] | 0.83 mm | Morgan II and Jasin, 1982 |
3 | Egg Buoyancy | When laid, eggs are demersal | Demersal | Stanley and Danie, 1983 |
3 | Egg Buoyancy | Demersal | Demersal | Everly and Boreman, 1999 |
3 | Egg Buoyancy | Eggs are demersal and attached, or can be pelagic | Pelagic | Rue, 2001 |
Trait id | Trait | Primary Data | Secondary Data | References |
---|---|---|---|---|
8 | Initial larval size | 2.3 | 2.3 mm | Scott and Crossman, 1973 |
8 | Initial larval size | 3.5 | 3.5 mm | Harrell, 1997 |
8 | Initial larval size | 2.3 | 2.3 mm | Mittelbach and Persson, 1998 |
8 | Initial larval size | 1.7-3.0 | 2.35 mm | Stanley and Danie, 1983 |
8 | Initial larval size | Depending upon temperature, yolk-sac larvae hatch at a length of about 2.6 mm | 2.6 mm | North and Houde, 2001 |
8 | Initial larval size | From mean of 2.13 to 2.86 [Depending on different salinities and temperatures] | 2.13 mm | Morgan II and Jasin, 1982 |
9 | Larvae behaviour | White perch larvae are one of the major species in ichthyoplankton in upper Chesapeake Bay during spring months [Larvae are trasnported down-stream after hatching] | Demersal | Shoji et al, 2005 |
9 | Larvae behaviour | Newly hatched prolarvae remain in the general spawning area during the first 4 to 13 days [Prolarvae have limited mobility] | Demersal | Stanley and Danie, 1983 |
9 | Larvae behaviour | Both stripped bass and white perch yolksac larvae may have the ability to swim actively toward surface waters during the day | Demersal | North and Houde, 2001 |
9 | Larvae behaviour | Eggs and larvae were discovered in plankton collections | Demersal | Mansuetti, 1961 |
Trait id | Trait | Primary Data | Secondary Data | References |
---|---|---|---|---|
15 | Age at sexual maturity | 76% mature at 2, and 100% at 3 | 76.0 year | Sheri and Power, 1968 |
15 | Age at sexual maturity | Most females mature at 2, some at 3 and all at 4 | 2.0 year | Stanley and Danie, 1983 |
15 | Age at sexual maturity | 5 in females | 5.0 year | Everly and Boreman, 1999 |
15 | Age at sexual maturity | Among the females, all were sexually mature from age group IV and older, but immature fish were found among the first three age groups. None, of course, were sexually mature in age group I. Within age groups II and III sexual maturity seemed to be related to size rather than ag. the bulk of the mature sample, nevertheless, is concentrated in age group III in these two groups. | 1.0 year | Mansuetti, 1961 |
16 | Length at sexual maturity | > 17.2 Fork length are mature | 17.2 cm | Sheri and Power, 1968 |
16 | Length at sexual maturity | 9.0-9.8 length at first maturity | 9.4 cm | Stanley and Danie, 1983 |
16 | Length at sexual maturity | 15.5-19.0 [Adult size, sex not specified] | 17.25 cm | Rue, 2001 |
16 | Length at sexual maturity | In general females mature after males, beginning at 9 cm. The length at which 50 per cent of the females are sexually mature is 10.33 cm | 9.0 cm | Mansuetti, 1961 |
18 | Female sexual dimorphism | No external characteristics have been found that help to differentiate between the two sexes, except during the spawning season. At that time, females are recognized, if gravid, by their widely distended abdomens, by the loss of eggs, if ripe, when light pressure is exerted | Present | Mansuetti, 1961 |
19 | Relative fecundity | Fecundity ranged from 5210 at weight 36.3 g to 221,003 at weight 308.4 g. Means of the number of eggs per gram of fish range from 279 [Weight 74.3 g], 420 [Weight 129.6 g], 786 [Weight 251.7 g], full range 186-975 | 580.5 thousand eggs/kg | Sheri and Power, 1968 |
Trait id | Trait | Primary Data | Secondary Data | References |
---|---|---|---|---|
27 | Age at sexual maturity | All males 2+ are mature, some at I | 2.0 years | Sheri and Power, 1968 |
27 | Age at sexual maturity | Most males mature at 2 | 2.0 years | Stanley and Danie, 1983 |
27 | Age at sexual maturity | 4 in males | 4.0 years | Everly and Boreman, 1999 |
27 | Age at sexual maturity | Males mature at an earlier age than females; all those examined in age group and older were sexually mature. None of age group I, however, were sexually mature | 1.0 years | Mansuetti, 1961 |
28 | Length at sexual maturity | > 14 Fork length | 14.0 cm | Sheri and Power, 1968 |
28 | Length at sexual maturity | 7.2-8.0 [Length at first maturity] | 7.6 cm | Stanley and Danie, 1983 |
28 | Length at sexual maturity | 15.5-19.0 [Adult size, sex not specified] | 17.25 cm | Rue, 2001 |
28 | Length at sexual maturity | In general males mature earlier than females, beginning at 8 cm. The length at which 50 per cent of the males are sexually mature is 10.03 cm | 8.0 cm | Mansuetti, 1961 |
30 | Male sexual dimorphism | No external characteristics have been found that help to differentiate between the two sexes, except during the spawning season. At that time, the sex of mature white perch is determined by applying pressure to the abdomen and noting the sexual products forced from the urogenital aperture | Absent | Mansuetti, 1961 |
31 | Onset of spermatogenesis | It first rose significantly above basal summer values in November | ['July', 'August', 'September', 'November'] | Jackson and Sullivan, 1995 |
Trait id | Trait | Primary Data | Secondary Data | References |
---|---|---|---|---|
36 | Spawning migration distance | Migration up to 90 km were recorded, and also 104 km | 90.0 km | Stanley and Danie, 1983 |
36 | Spawning migration distance | The mean distance in miles traveled by all white perch tagged during spring months was 15.6, with upper ranges of 45 miles or more | 15.6 km | Mansuetti, 1961 |
37 | Spawning migration period | Nonmigratory | No data | Everly and Boreman, 1999 |
37 | Spawning migration period | Upstream movements occurred only during the spring months | ['April', 'May', 'June'] | Mansuetti, 1961 |
39 | Spawning season | Commences about mid-May and may extend to the end of June | ['May', 'June'] | Scott and Crossman, 1973 |
39 | Spawning season | Middle of May to the end of June | ['May', 'June'] | Sheri and Power, 1968 |
39 | Spawning season | From April to June, or July, with peak egg deposition in mid-May to early June | ['April', 'May', 'June', 'July'] | Everly and Boreman, 1999 |
39 | Spawning season | Mid-march and May | ['May'] | Rue, 2001 |
39 | Spawning season | Peaks in April and May | ['April', 'May'] | North and Houde, 2001 |
40 | Spawning period duration | Spawning continues for 1-2 weeks and does not take place all at once | 1.5 weeks | Scott and Crossman, 1973 |