Dietary Items and Feeding Habits of Big Eye Grunt Brachydeuterus auritus (Valenciennes, 1832)

2012 ◽  
Vol 7 (1) ◽  
pp. 1-5
Author(s):  
Fatimat Adenike Adebiyi
Keyword(s):  
Feeding Habits

Utilizing next-generation sequencing to identify prey DNA in western North Atlantic grey seal Halichoerus grypus diet

2020 ◽  
Vol 655 ◽  
pp. 227-240
Author(s):  
KR Flanders ◽  
ZH Olson ◽  
KA Ono
Keyword(s):  
Next Generation Sequencing ◽  
Feeding Habits ◽  
Atlantic Menhaden ◽  
Halichoerus Grypus ◽  
Frequency Of Occurrence ◽  
Grey Seal ◽  
Next Generation ◽  
Significant Difference ◽  
Generation Sequencing ◽  
Seal Diet

Increasing grey seal Halichoerus grypus abundance in coastal New England is leading to social, political, economic, and ecological controversies. Central to these issues is the foraging ecology and diet composition of the seals. We studied grey seal feeding habits through next-generation sequencing of prey DNA using 16S amplicons from seal scat (n = 74) collected from a breeding colony on Monomoy Island in Massachusetts, USA, and report frequency of occurrence and relative read abundance. We also assigned seal sex to scat samples using a revised PCR assay. In contrast to current understanding of grey seal diet from hard parts and fatty acid analysis, we found no significant difference between male and female diet measured by alpha and beta diversity. Overall, we detected 24 prey groups, 18 of which resolved to species. Sand lance Ammodytes spp. were the most frequently consumed prey group, with a frequency of occurrence (FO) of 97.3%, consistent with previous studies, but Atlantic menhaden Brevoortia tyrannus, the second most frequently consumed species (FO = 60.8%), has not previously been documented in US grey seal diet. Our results suggest that a metabarcoding approach to seal food habits can yield important new ecological insights, but that traditional hard parts analysis does not underestimate consumption of Atlantic cod Gadus morhua (FO = 6.7%, Gadidae spp.) and salmon Salmo salar (FO = 0%), 2 particularly valuable species of concern.

Feeding Habits of Indo-Pacific Humpback Dolphins (Sousa chinensis) Stranded in Hong Kong

2004 ◽  
Vol 30 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Nélio B. Barros ◽  
Thomas A. Jefferson ◽  
E.C.M. Parsons
Keyword(s):  
Hong Kong ◽  
Feeding Habits ◽  
Sousa Chinensis

Feeding Habits of Larval Acanthogobius flavimanus from the Nakdong River Estuary, Korea

2019 ◽  
Vol 31 (3) ◽  
pp. 150-158
Author(s):  
Hee Chan Choi ◽  
Jeong Hyun Cho ◽  
Sung Hoi Huh ◽  
Joo Myun Park
Keyword(s):  
Feeding Habits ◽  
River Estuary ◽  
Nakdong River ◽  
Acanthogobius Flavimanus ◽  
The Nakdong River

FEEDING HABITS OF PELTEOBAGRUS NITIDUS IN LAKE DONGTING

2011 ◽  
Vol 35 (2) ◽  
pp. 270-275 ◽  
Author(s):  
Gang YUAN ◽  
Hui-Jun RU ◽  
Xue-Qin LIU
Keyword(s):  
Feeding Habits

Bionomic of Anopheles sp. in Merauke District, Papua

SCISCITATIO ◽  
2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Djoko Rahardjo ◽  
Vinsa Cantya Prakasita ◽  
Marlen Aviati Sarah Pepiana
Keyword(s):  
Qualitative Data ◽  
Feeding Habits ◽  
Feeding Activity ◽  
Feeding Habit ◽  
Blood Type ◽  
Insect Repellent ◽  
Mosquito Repellent ◽  
Mosquito Nets ◽  
Community Behavior ◽  
Habitual Behavior

Malaria is known as an endemic disease that often causes death in Indonesia, especially in Papua. The malaria cases control in Papua has not been carried on based on data studies, therefore bionomic of Anopheles sp is important to be studied. Bionomics data are consisted of breeding places, resting places and feeding habits are from direct observation. Interviews and questionnaires were conducted to gain information about respondent behavior. Descriptive and qualitative data were then analyzed. The breeding places of Anopheles sp. were mostly found in swampy areas. Based on the feeding habit, the feeding activity of Anopheles sp. inside the house has only one biting peak at 23.00-02.00 WIT, while outside the house, biting peaks occurred at 21.00-22.00 WIT and 00.00-01.00 WIT. Resting place data shown that Anopheles sp. mostly found in piles of clothes and shoe racks. Recorded factors that affect mosquitos bionomics are temperature, humidity, salinity, pH, community behavior, and the presence of livestock. Environmental factors (temperature, humidity, salinity, and pH), habitual behavior of host (3M action, the habit of using insect repellent, mosquito repellent, and mosquito nets), the presence of livestock, and the type of bait blood type affect mosquito activity.

Sign in / Sign up

Export Citation Format

Share Document