scholarly journals Feeding ecology of dominant fish species from beach seine discards (Praia de Mira, Central Portugal)

2016 ◽  
Vol 3 ◽  
Author(s):  
Seabra Pedro ◽  
Louro Inês ◽  
Neves Pedro ◽  
Vieira Rui ◽  
Cunha Marina
2016 ◽  
Vol 27 (2) ◽  
pp. 228-234
Author(s):  
SK Ghosh ◽  
MK Ahsan ◽  
MK Ahmmed ◽  
SI Ahmed ◽  
MM Hasan ◽  
...  

Studies were conducted on catch assessment of some artisanal marine fishing gears operated in Cox’s Bazar and Teknaf areas from April 2014 to April 2015. Sixteen types of fishing gears were identified, of which gill net, beach seine net, estuarine set bag net, marine set bag net and trammel net occupy major fishing activities. Although estuarine set bag net (ESBN) is a legally restricted fishing gear recorded the highest catch per unit effort (CPUE) (110 kg/gear/day) in July followed by marine set bag net (MSBN) (105 kg/gear/day) in Cox’s Bazar and the highest CPUE was recorded 100 kg/gear/day by ESBN in June followed by MSBN (90 kg/gear/day) in Teknaf. Out of 52 species of fishes, the major fish species abundantly caught by these gears were Poa (Otolithoides argenteus), Churi (Trichiurus haumela), Loittya (Harpadon nehereus), Ranga choukha (Lutjanus johni), Lal poa (Johnius argentatus), Olua (Coilia dussumieri), Rup chanda (Stromateus chinensis), (Stromateus argenteus) and Ilish (Tenualosa ilisha). Besides these fish species, 10 commercially important shrimp species and 3 important crab species were also recorded during the study period. The peak season of availability of most fish species was June and July while lean season was December and January. This study indicated that Otolithoides argenteus) was the dominant fish species followed by Trichiurus haumela, Harpadon nehereus and Coilia dussumieri.Progressive Agriculture 27 (2): 228-234, 2016


2017 ◽  
Vol 24 (5) ◽  
pp. 1091
Author(s):  
Jia WO ◽  
Binduo XU ◽  
Ying XUE ◽  
Yiping REN ◽  
Chongliang ZHANG

2019 ◽  
Vol 59 (6) ◽  
pp. 987-997
Author(s):  
K. M. Gorbatenko ◽  
S. I. Kiyashko

Species composition, density, biomass and distribution of zooplankton on shelf and slope of northwestern part of the Laptev Sea and shallow-water shelf of the East Siberian Sea were studied in 2015 summer period. Using analysis of stable isotopes of carbon (13 С) and nitrogen (15N), trophic status of abundant zooplankton and fish species, and their positions in food webs of these two seas, were compared. Gut content analysis, as well stable isotope data, showed mutual changes in the trophic status of dominant fish species arctic cod, Boreogadus saida, with age.


2017 ◽  
Vol 22 (1) ◽  
pp. 120-126
Author(s):  
Dipendra Joshi ◽  
Bijaya K. C.

Ghodaghodi Lake is an ox-bow perennial lake of Ghodaghodi Lake Complex, situated in Kailali district. The present study was conducted to understand the fish diversity, community structure and distribution pattern in Ghodaghodi Lake. A total of 13 fish species were recorded from the different section of Ghodaghodi Lake, belonging to five order, eight family and eleven genera. According to fish catch the dominant order and family of Ghodaghodi Lake were found to be Cypriniformes (40%) and Cyprinidae (40%) respectively. The dominant fish species of Ghodaghodi Lake was Labeo gonius followed by Mystus tengara, Nandus nandus and Channa striatus. The highest diversity index (2.46), species richness (6.14) and evenness (0.96) of fish were recorded from station III during the month of January. Lowest diversity index (1.75) and evenness (0.90) was found in station II and during the month of October (2.25 and 0.88). Similarly, lowest species richness was found in station I (3.91) and during the month of July (5.82). Fish diversity and number in Ghodaghodi Lake were found to have decreased. This could be due to pollution, illegal fishing and excessive proliferation of aquatic weeds.Journal of Institute of Science and TechnologyVolume 22, Issue 1, July 2017, page: 120-126


2021 ◽  
Vol 2 (1) ◽  
pp. 17-24
Author(s):  
Nor Aziella Mohd Rosli ◽  
Nurul Shafikah Mohd Noor ◽  
Khaironizam Md Zain

Ichthyofauna checklist was scrutinized in tributaries of Muda Reservoir. A total of 5998 specimens were caught using a cast net of 2.5 cm mesh size. Amongst these specimen, 30 fish species from 12 families were recorded. The most dominant fish family in this lotic ecosystem was Cyprinidae. Rasbora dusonensis, Cyclocheilichthys apogon and Mystacoleucus marginatus recorded the uppermost distribution compared to other fish species found in this tributaries. Six fish species were the newly recorded species found in tributaries of Muda Reservoir; Barbonymus gonionotus, Luciosoma setigerum, Toxabramis houdemeri, Mystus singaringan, Anabas testudineus and Trichopodus pectoralis. In accordance with the previous combination of recorded fish species in tributaries of Muda Reservoir, a total of 57 updated total numbers of fish species were recorded. The information obtained in present study will update the latest ichthyofauna checklist in tributaries of Muda Reservoir, as well as for the future comparison in other geographical locations.


Author(s):  
Tadeusz Penczak ◽  
Angelo A. Agostinho ◽  
Norma S. Hahn

The frequency of nine food types in the guts of 58 fish species from the Paraná River and its floodplain was compared using similarity definition. A synthetic table ordered on the basis of this definition, with fish species on axis y, and food types on axis x, enabled easy reading numerous kinds of information on feeding ecology of fish in the catchment. For example: 1) which fish species were generalists, specialists or opportunists, 2) those classified as herbivorous species consumed small amounts of animal food, 3) that fish consumed any food type that contained transformed solar energy and matter, 4) what are food preferences dependent on fish taxonomic affinity. The possibility of employing synthetic tables for investigating spatial and temporal variation in fish diet has also been indicated.


Sign in / Sign up

Export Citation Format

Share Document