Low-salinity tolerance of early-stage oyster larvae from a mesohaline estuary

2019 ◽  
Vol 613 ◽  
pp. 97-106 ◽  
Author(s):  
RJ Scharping ◽  
LV Plough ◽  
DW Meritt ◽  
EW North
Keyword(s):  
Salinity Tolerance ◽  
Early Stage ◽  
Low Salinity

Feeding marbled spinefoot rabbitfish ( Siganus rivulatus ) juveniles with β‐mannanase enzyme: An effective tool to enhance growth and immunity and induce low salinity tolerance

2020 ◽  
Vol 26 (6) ◽  
pp. 1884-1894
Author(s):  
Ahmed E. Sallam ◽  
Hebatollah M. Almisherfi ◽  
Mohamed M. M. El‐Feky ◽  
Heba M. Abdel‐Ghany ◽  
Mohamed El‐S. Salem
Keyword(s):  
Salinity Tolerance ◽  
Low Salinity ◽  
Siganus Rivulatus

Water Permeability of Palaemon Longirostris and other Euryhaline Caridean Prawns

1990 ◽  
Vol 150 (1) ◽  
pp. 145-158
Author(s):  
PETER J. CAMPBELL ◽  
M. B. JONES
Keyword(s):  
Low Temperature ◽  
Salinity Tolerance ◽  
Water Permeability ◽  
Significant Rise ◽  
Physiological Adaptation ◽  
Low Salinity ◽  
Salinity Changes ◽  
Palaemon Elegans ◽  
Palaemon Longirostris ◽  
Experimental Salinity

Water permeability [based on the half-time of exchange of body water with the environment (T1/2)] of the upper estuarine prawn Palaemon longirostris was measured in a range of salinities at 4, 12 and 20°C. Prawns acclimated for 7 days were compared with prawns exposed to acute salinity changes. Acclimation to low salinity and low temperature caused a significant reduction in permeability. Transfer of prawns from 34 to 0.5‰ had no immediate effect on permeability; however, transfer from 0.5 to 34‰ caused an immediate significant rise in permeability. Heart rate of P. longirostris acclimated to 0.5 and 34‰ at 4, 12 and 20°C was unaffected by salinity, but was significantly reduced at low temperature. The permeabilities of three other prawn species (Palaemonetes varians, Crangon crangon and Palaemon elegans), which have different horizontal distributions in estuaries and different salinity tolerance ranges, were also studied and compared with the values obtained for P. longirostris. P. varians and C. crangon showed significantly reduced permeabilities at low compared with high salinities; however, the permeability of P. elegans was unchanged at the two salinities used for this species (22 and 34‰). At each experimental salinity, permeabilities followed the sequence: P. longirostris<P. varians<C. crangon<P. elegans. Results show that reduction of permeability is an important physiological adaptation to life in dilute saline regions and may be involved in separating species with overlapping salinity tolerance ranges.

Digging out molecular markers associated with low salinity tolerance of Nannochloropsis oceanica through bulked mutant analysis

2019 ◽  
Vol 38 (6) ◽  
pp. 1867-1879
Author(s):  
Sijie Liang ◽  
Zhongyi Zhang ◽  
Hang Liu ◽  
Li Guo ◽  
Shiyang Sun ◽  
...  
Keyword(s):  
Molecular Markers ◽  
Salinity Tolerance ◽  
Nannochloropsis Oceanica ◽  
Mutant Analysis ◽  
Low Salinity

Low-salinity tolerance of juvenile fugu Takifugu rubripes

2005 ◽  
Vol 71 (6) ◽  
pp. 1324-1331 ◽  
Author(s):  
Kyung Mi LEE ◽  
Toyoji KANEKO ◽  
Katsumi AIDA
Keyword(s):  
Salinity Tolerance ◽  
Takifugu Rubripes ◽  
Low Salinity

Sericitization of plagioclase in the Rosses Granite Complex, Co. Donegal, Ireland

1996 ◽  
Vol 60 (403) ◽  
pp. 927-936 ◽  
Author(s):  
Meideno Que ◽  
Alistair R. Allen
Keyword(s):  
Fluid Inclusion ◽  
Early Stage ◽  
Alkali Feldspar ◽  
Hydrothermal Fluids ◽  
Cooling History ◽  
Fluid Inclusion Data ◽  
Low Salinity ◽  
Ring Complex ◽  
History Of ◽  
Granite Complex

AbstractSericitization in three separate pulses of the Rosses Granite Ring Complex, Co. Donegal, Ireland, has been investigated texturally and chemically using electron microscopy, electron microprobe and fluid inclusion thermometry. The sericitization, which is restricted to the cores of plagioclase, is associated with pores which are abundant in the cores, but absent in the margins. Alkali feldspar, although porous, is unaltered. Associated with the sericitization is alteration of the adjacent primary plagioclase within the cores of grains to a more sodic composition.It is postulated that the sericitization resulted from the action of externally derived secondary hydrothermal fluids, which gained access to the pores in the plagioclase via now sealed microfractures, formed either by contraction during cooling of the Rosses Complex, or more likely by hydraulic fracturing by the fluids themselves. Limited fluid/rock ratios restricted the degree of sericitization within the host plagioclase, whilst an absence of alteration in alkali feldspar may have been due to the inaccessibility of pores in the alkali feldspar to the hydrothermal fluids at the time of alteration. Fluid inclusion data suggest that the fluids were of low salinity, and that the sericitization took place at an early stage in the cooling history of the Rosses Complex at temperatures between 400 and 600°C. It is further contended that greisenization in the Rosses Complex predated the sericitization and that the greisenization may have been due solely to volatile-rich late-stage magmatic fluids.

Sign in / Sign up

Export Citation Format

Share Document