alexa Abstract | FOOD AND FEEDING HABIT OF SPINY EEL Macrognathus aral (Bloch and Schneider) FROM UPPER ASSAM

Journal of FisheriesSciences.com
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Abstract

Food and feeding habits of for M. aral were studied by examining a total of 421 di-gestive tracts during August, 2008 and July, 2010. It is very important to know the feeding habits of the fish in the natural environment in order to conduct stock en-hancement by releasing the seedlings, because prevention of starvation, improve-ments of their growth and effective management can be conducted from this knowledge. The results reveals that the lowest value of relative length of gut (RLG) was found as 0.58(±0.09) in 27-32 cm whereas the highest values as 0.62(±0.12) in 7-12 cm group. Fullness of gut was recorded as18.38% (full); 9.18% (¾ full); 11.23% (½ full); 12.54% (¼ full); 19.77% (nearly empty) and 28.9% (empty). Gastro somatic index (GSI) was ranged from 0.55±0.13 (Feb) to 3.72±1.84 (Jun) for males and that of female from 0.45±0.12 (Feb) to 1.85±0.61 (Aug). In juveniles, a strong positive selection was observed for zooplanktonic organism (46.44%), insect larvae (27%), miscellaneous includes unidentified matter, algal & fish egg (17.16%), anne-lids (5.38%), sand & mud (2.05%) and crustaceans (1.97%). In adults, the most dom-inant food item was insect larvae (34.45%) and followed by zooplankton (19.56%); miscellaneous includes unidentified matter, algal & fish egg (15.04%); annelids (11.75%), crustaceans (8.02%), sand & mud (6.02%) and molluscs (5.16%). The in-dex of pre-ponderance values showed that insect larvae were the most preferred food item (63.1%) for this species followed by zooplankton (20.02%) miscellaneous in-cludes unidentified matter, algal & fish egg (10.59%), sand & mud (4.37%), crusta-ceans (1.30%), annelids (0.52%) and molluscs (0.10%).

To read the full article Peer-reviewed Article PDF image | Peer-reviewed Full Article image

Author(s): Santoshkumar Singh ABUJAM

Keywords

M. aral, RLG, Fullness of gut, GSI, Gut content analysis, Index of pre-ponderance, Upper Assam, India, Fisheries feed, Fisheries management, Sea foods

 
Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us