|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(3) [June 2011] >
| Title: | Environmental substrate selection and daily habitual activity in Xiphopenaeus kroyeri shrimp (Heller, 1862) (Crustacea: Penaeioidea) |
| Authors: | Freire, Fulvio A M
Luchiari, Ana C
Fransozo, Vivian |
| Keywords: | Shrimp
Fishery
Interstitial
Aquaria
Substrate |
| Issue Date: | Jun-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Present study consists the study on environmental
substrate preference and daily habitual activity of X. kroyeri shrimp.
Six different substrate combinations were tested using silt and clay, various
granulometries of sand, and gravel. Experimental tank for preference testing
consisted of a 50 cm
diameter cylindrical tank with 6 lateral compartments and a radial area in the
middle. Every substrate combination prepared was randomly chosen for each
compartment. Each substrate was spread to have a 5 cm thickness in the
compartments. One isolated individual for each trial (n= 40) was used.
Activities of the animals were observed 8 times a day, at 13:30, 14:30, 17:30,
18:30, 0:30, 1:30, 7:30 and 8:30 h. X.
kyoyeri had a significant preference for very fine and fine sand. During
the day light time burrowing activity was more intense while at night swimming
was higher. Present results enabled us to conclude that X. kroyeri has preference for very fine and fine sand substrate. |
| Page(s): | 325-330 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.40(3) [June 2011]
|
|
