. | . | NKA (μmol mg-1 protein h-1) . | . | . | . | . | . | |||
---|---|---|---|---|---|---|---|---|---|---|
Species . | Habitat . | 5 p.p.t. . | N . | 35 p.p.t. . | N . | RSR . | t-test . | |||
Portunidae | ||||||||||
Scylla paramamosain† | M | 11.37±8.44 | 5 | 3.31±1.06b | 6 | 3.44 | 0.02 | |||
Ocypodidae | ||||||||||
Macrophthalmus banzai | IT | 10.69±1.47 | 6 | 3.42±2.66 | 7 | 3.12 | <0.01 | |||
Macrophthalmus abbreviatus | IT | 7.81±0.25 | 3 | 1.46±0.20 | 3 | 5.34 | <0.01 | |||
Uca lactea | IT/BI | 28.63±4.49 | 5 | 16.62±5.38b | 5 | 1.72 | 0.04 | |||
Uca formosensis | BI/T | 16.53±5.62 | 16 | 13.09±3.48 | 17 | 1.26ns | 0.51 | |||
Ocypode stimpsoni | T | 4.17±2.62 | 9 | 5.88±3.14 | 10 | 0.71ns | 0.22 | |||
Grapsidae | ||||||||||
Chasmagnathus convexus | BI/T | 4.85±1.52 | 10 | 3.93±2.20 | 6 | 1.23ns | 0.34 | |||
Helice formosensis | BI/T | 8.04±3.22 | 3 | 9.21±1.33 | 3 | 0.87ns | ||||
BI/T | 4.81±3.28a | 9 | 3.62±1.12 | 9 | 1.33ns | 0.40 | ||||
Eriocheir sinensis | FW | 7.17±1.62 | 4 | 12.66±6.25 | 2 | 0.57ns | 0.14 | |||
Hemigrapsus sanguineus | IT/BI | 5.59±2.31 | 5 | 6.81±3.62 | 4 | 0.82ns | 0.56 | |||
Hemigrapsus penicillatus | IT/BI | 4.08±2.42 | 5 | 2.48±2.34 | 3 | 1.65ns | 0.39 | |||
Perisesarma bidens | IT/BI | 12.6±1.14 | 4 | 11.26±0.28 | 3 | 1.12ns | 0.11 | |||
Chiromantes dehaani | BI/T | 4.35±3.04 | 7 | 3.30±1.81 | 6 | 1.32ns | 0.48 |
. | . | NKA (μmol mg-1 protein h-1) . | . | . | . | . | . | |||
---|---|---|---|---|---|---|---|---|---|---|
Species . | Habitat . | 5 p.p.t. . | N . | 35 p.p.t. . | N . | RSR . | t-test . | |||
Portunidae | ||||||||||
Scylla paramamosain† | M | 11.37±8.44 | 5 | 3.31±1.06b | 6 | 3.44 | 0.02 | |||
Ocypodidae | ||||||||||
Macrophthalmus banzai | IT | 10.69±1.47 | 6 | 3.42±2.66 | 7 | 3.12 | <0.01 | |||
Macrophthalmus abbreviatus | IT | 7.81±0.25 | 3 | 1.46±0.20 | 3 | 5.34 | <0.01 | |||
Uca lactea | IT/BI | 28.63±4.49 | 5 | 16.62±5.38b | 5 | 1.72 | 0.04 | |||
Uca formosensis | BI/T | 16.53±5.62 | 16 | 13.09±3.48 | 17 | 1.26ns | 0.51 | |||
Ocypode stimpsoni | T | 4.17±2.62 | 9 | 5.88±3.14 | 10 | 0.71ns | 0.22 | |||
Grapsidae | ||||||||||
Chasmagnathus convexus | BI/T | 4.85±1.52 | 10 | 3.93±2.20 | 6 | 1.23ns | 0.34 | |||
Helice formosensis | BI/T | 8.04±3.22 | 3 | 9.21±1.33 | 3 | 0.87ns | ||||
BI/T | 4.81±3.28a | 9 | 3.62±1.12 | 9 | 1.33ns | 0.40 | ||||
Eriocheir sinensis | FW | 7.17±1.62 | 4 | 12.66±6.25 | 2 | 0.57ns | 0.14 | |||
Hemigrapsus sanguineus | IT/BI | 5.59±2.31 | 5 | 6.81±3.62 | 4 | 0.82ns | 0.56 | |||
Hemigrapsus penicillatus | IT/BI | 4.08±2.42 | 5 | 2.48±2.34 | 3 | 1.65ns | 0.39 | |||
Perisesarma bidens | IT/BI | 12.6±1.14 | 4 | 11.26±0.28 | 3 | 1.12ns | 0.11 | |||
Chiromantes dehaani | BI/T | 4.35±3.04 | 7 | 3.30±1.81 | 6 | 1.32ns | 0.48 |
M, euryhaline marine crab; IT, intertidal crab; BI, bimodal crab; T,terrestrial crab; FW, freshwater crab.
Values are means ± s.d.
The response-to-salinity ratio (RSR) of NKA was calculated by dividing the mean activity in 5 p.p.t. over that in 35 p.p.t. salinity.
Crabs acclimated in 3 p.p.t. salinity; bcrabs acclimated in 45 p.p.t. salinity; nsno significant difference between salinities in that species.
(from Chung and Lin,2006).