isohaline

isohaline

[‚ī·sō′hā‚lēn]
(oceanography)
Of equal or constant salinity.
A line on a chart connecting all points of equal salinity.
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References in periodicals archive ?
Ichthyoplankton distributions, concentrations, and sizes were evaluated with respect to the salt front and site of intersection of the 2.0 isohaline with the bottom (referred to as [X.sub.2] by Jassby et al., 1995).
The structures are operated to maintain salinities within the project along two isohaline lines (5ppt and 12ppt), while allowing as much ingress and egress of marine organisms as possible.
The highest squid abundance or optimum habitat were concentrated around the 19-20[degrees]C SST isotherm, the 33.3-33.4 psu SSS isohaline, and the 0.3mg/[m.sup.3] chl-a isopleth in August; 16-17[degrees]C SST, 33.3-33.4 psu SSS, and 0.4-0.5 mg/[m.sup.3] chl a in September; and 15-16[degrees]C SST, 33.3-33.4 psu SSS, and 0.3-0.4 mg/[m.sup.3] chl a in October.
A recent fit to measurements taken within eight under-ice plumes (CSSA, 1993; Anctil et al., 1996) yields the following empirical relationship for the area A (in km2) encompassed by the isohaline of salinity S of a plume arising from a volume discharge rate Q0 (m3/s) spreading over water of salinity Sb (measured at a depth of 3 m below the pycnocline; Sb ranges from 22 to 27 over the eight rivers examined):
Due to difficulties in creating continuous salinity and temperature contour maps in GIS, these variables were classified as follows: salinity was classified by one of the five isohaline zones described previously and analyzed as such to determine its influence on brown shrimp distribution; and water temperature was classified by season determined by cluster analysis and analyzed to examine possible temporal effects of brown shrimp distribution.
7i,j, in which both isotherm and isohaline spacing represent equal contributions to density.
Similar results were observed for Chesapeake and Delaware bays (Bulger et al, 1993; Able et al, 1997), who identified the 25-27 isohaline as the edge of the brackish water for strictly marine species.
Farther south along the 34.6 isohaline, higher salinity relative to the long-term mean was found.
In (a) only isotherm contours mostly outside the thermocline are shown, and in (b) only isohalines mostly associated with the high-salinity Subtropical Underwater (STUW) are shown.