NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.36 [2007] >
IJMS Vol.36(1) [March 2007] >

Title: Gastric emptying, clearance rate, feeding periodicity and food consumption of the Black Sea jelly fish, Mnemiopsis leidyi (Agassiz)
Authors: Mazlum, R. Evren
Keywords: Black Sea
Mnemiopsis leidyi
Gastric emptying
Food consumption
Jelly fish
Issue Date: Mar-2007
Publisher: CSIR
Abstract: The feeding physiology of Mnemiopsis leidyi fed on Artemia salina were investigated under laboratory conditions. Multifactorial experimental designs were used to study the factors affecting gastrovascular emptying in M. leidyi. A high correlation was found between number of prey ingested and digestion time. Modelling of gastric emptying time (GET,h.) of M. leidyi fed on A.salina was attempted to describe the effect of animal size, prey number, container volume and temperature on the digestion time. GET= 3.42- 0.00636 W + 0.0121 pN - 0.155 V - 0.00983 T. The clearance-rate was significantly affected by container volume and the feeding time. Multiple regression was attemped to model clearance rate: CR = 0.366 + 0.377 V - 0.197 H. Studying the feeding periodicity over a 24 h period, it was found that under laboratory condition and with readily available prey, M. leidyi feeds continuously except for the early hours of the day. Under such conditions medium size Mnemiompsis (11.36±0.38 g) consumed between 1286 and 2741 artemia daily. With the models of gastric emptying time (GET) and clearance rate (CR) presented in this study, quantitative assessment of the predatory impact of the ctenophore Mnemiopsis leidyi on the Black Sea ecosystem can be faciliated.
Page(s): 59-64
ISSN: 0379-5136
Source:IJMS Vol.36(1) [March 2007]

Files in This Item:

File Description SizeFormat
IJMS 36(1) (2007) 59-64.pdf383.46 kBAdobe PDFView/Open
 Current Page Visits: 1179 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 168284 since 01-Sep-2015  Last updated on 29-Jun-2016Webmaster: