scholarly journals Food and feeding habits of the greenback grey mullet Liza subviridis (Valenciennes, 1836) from Parangipettai waters, south-east coast of India

2016 ◽  
Vol 63 (4) ◽  
Author(s):  
M. Ashiq Ur Rahman ◽  
P. S. Lyla ◽  
S. Ajmal Khan

The feeding ecology and prey preference of greenback grey mullet Liza subviridis (Valenciennes, 1836) were investigated in Parangipettai waters (11°29′25.55″N; 79°45′38.62″E) from May 2011 to April 2012. A total of 328 male and 360 female specimens of L. subviridis were analysed. Detritus and sand particles formed the major food item of L. subviridis in both sexes besides, diatoms, dinoflagellates, algae, zooplankton, foraminiferans, polychaetes and larval forms were also noticed and ranked respectively based on the quantities. Feeding intensity showed that the percentage of ‘empty’ stomachs varied from 7.2% (November 2011) to 19.3% (August 2011) and from 7.1% (March 2012) to 19.2% (August 2011) in males and females respectively whereas the ‘gorged’ stomach in males and females was in the ranges of 4.6% (March 2012) - 14.5% (December 2011) and 4.6% (September 2011) - 14.5% (April 2012). The gastrosomatic index of males and females ranged between 5.9% (October 2011) - 8.2% (May 2011) and 6.1% (March 2012) - 8.1% (May 2011) respectively. The results agree with the previous reports and extend the understanding on its well-being, reproductive seasons and stock of L. subviridis in Parangipettai waters.

2014 ◽  
Vol 2 (2) ◽  
pp. 148
Author(s):  
Vishwas Balasaheb Sakhare ◽  
Ashvini Dnayndeo Chalak

The food analysis of 150 specimens of Clarias batrachus revealed that the food consisted of insect larvae, small fish, shrimps and organic debris. Small fish and insect larvae were preferred as the primary food item in all the seasons. On average for all months of the study period, small fish dominated the list with a percentage of 30.27.The other food items in descending order are insect larvae (27.66%), worms (20.27%), shrimps (14.3%) and organic debris (7.05%).The feeding intensity in mature fishes was found to be very poor during August to September. This period of poor feeding activities in case mature fishes coincides with the peak spawning season.


2017 ◽  
Vol 9 (2) ◽  
pp. 161-168
Author(s):  
Rama Chandra Ganesh PATURI ◽  
Sarvabhowma Chakravarty MYLA

The food and feeding habits of the shrimp Solenocera melantho off Visakhapatnam coast were studied qualitatively and quantitatively. Feeding intensity differs in relation to gender, size, season and stage of maturity. Detritus was the major component of the food consumed, followed by crustaceans, molluscs, foraminiferans, fish remains, eggs; sand was also found as one of the gut contents. Diet preference in males and females was similar, but varied with size and season. The index of preponderance of detritus was 50.88% in males and 47.16% in females. Variation in feeding intensity was noticed in relation to size, months and season. The overall feeding intensity in males and females was categorized as actively fed (21.52% and 40.78% respectively), moderately fed (22.07%, 19.72%) and poorly fed (14.07%, 27.03%) respectively. S. melantho may designate as an omnivorous detritivore with scavenging activity. 


2015 ◽  
Vol 12 (1) ◽  
pp. 7-15 ◽  
Author(s):  
Md. Abdur Razzaq Joadder

Food and feeding habits of fishes have a great significance in aquaculture practices. It helps to select such species of fishes for culture which will utilize all the available potential food of the water bodies without much competition with one another but will live in association with other fishes. This paper deals with the feeding intensity and food habits of L. bata . Food and feeding habit of freshwater minor carp Labeo bata (120 to 250 mm total length) were studied. The fish is a herbivore, feeding mainly on algae (22.32 %), higher plant parts (31.26 %), protozoans (7.42 %), crustaceans (15.33 %), insects (3.56 %), muds, sand, debris and detritus (16.32 %) and unidentified food materials (3.99%).Journal of Science Foundation, 2014;12(1):7-15


Author(s):  
MA Azadi ◽  
M Nasiruddin ◽  
ASMS Rahman

Food and feeding habits of Gonialosa manmina were done by the analysis of 197 guts of the fish using both occurrence and point methods and also by the Index of preponderance. As per Index of preponderance, the preferred food items were graded as cladocerans (65.34%-1st), copepods (20.96%-2nd), miscellaneous (8.89%-3rd), rotifers (2.81% 4th) and bacillariophyceae (0.77% 5th). High feeding intensity was observed during pre and post spawning months. Significant (P<0.01) positive relationships were observed between the total length (TL) and total gut length (TGL) (TGL=2.09799TL0.89677, r=0.963, t=10.22), total length (TL) and stomach length (StL)(StL=0.18447TL0.7599, r=0.997, t= 39.92), and total length (TL) and intestine length (IL) (IL=0.99105TL1.0256, r=0.9854, t=16.37). Total fish length was slightly shorter than the gut length (1:1.31) and more than 91% animal nature gut contents confirmed that the fish was mainly a surface feeder zooplanktivore in Kaptai lake. DOI: http://dx.doi.org/10.3329/cujbs.v4i1.13386 The Chittagong Univ. J. B. Sci.,Vol. 4(1&2):53-61, 2009


2013 ◽  
Vol 13 (3) ◽  
pp. 141-147 ◽  
Author(s):  
Andrey Felipe Gomes Gonçalves ◽  
Bruno da Silveira Prudente ◽  
Fernando da Silva Carvalho Filho ◽  
Luciano Fogaça de Assis Montag

The present study describes aspects of feeding ecology of Dash-dot TetraHemigrammus belottii (Characiformes: Characidae) collected in the Urucu River basin in Coari, Amazonas (Brazil), aims to respond the following question: What is the influence of hydrological periods (dry and wet) and spatial distribution in the diet of H. belottii? The specimens were collected between 2006 and 2009 in seven streams in the Urucu basin using standard capture methods. Their stomachs were removed for diet composition analyses. The alimentary items were weighed and identified for subsequent analyzes related to feeding intensity by repletion index (RI%) and importance by alimentary index (AIi%). A total of 227 specimens were analyzed, with a mean standard length of 16.5±5.6 mm. The RI% values indicated that H. belottii fed more intensively during the dry season. The principal items in the diet were Formicidae (IAi% = 69.6), fragments of allochthonous exoskeleton (IAi% = 17.7), and Coleoptera (IAi% = 6.0). The composition of the diet did not vary significantly between seasons or among habitats, which may be related to the abundance of the items exploited by the species throughout the year. Hemigrammus belottii showed a generalist insectivore feeding habits which was mainly composed by allochthonous item.


2019 ◽  
Vol 66 (4) ◽  
Author(s):  
M. Serajuddin ◽  
Brijesh K. Chaubey

Dietary composition and feeding intensity in relation to season, size and maturity stages of the Gangetic hairfin anchovy Setipinna phasa (Hamilton, 1822) were investigated in the present study. Strong dentition, modified gill rakers, strongly built stomach and short intestine were some of the basic characteristics associated with the feeding habits of S. phasa. Relative length of gut (RLG) indices indicated the absence of any major shift from basically carnivorous orientation of the fish during its various life stages. Feeding intensity was relatively high in stage III (gonad ripening stage) and low in the stages IV and V (ripe and spent). Insects and crustaceans were the main food of adults while annelids and insects were eaten by juveniles. Adult individuals of river Ganga consumed more food during winter than summer and rainy seasons, while the food intake in adult specimens of Hooghly Estuary was greater during summer compared to winter and rainy seasons. Study of food and feeding habits of fishes provides base line information for facilitating fisheries management programmes and sustainable aquaculture.


Sign in / Sign up

Export Citation Format

Share Document