Food and feeding habits of fish species over a soft sublitioral botiom in the Northeast Atlantic. 3. Haddock (Melanogrammus aeglefinus(L.)) (Gadidae)

Sarsia ◽  
1992 ◽  
Vol 77 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Stefan Mattson
Keyword(s):  
Fish Species ◽  
Feeding Habits ◽  
Melanogrammus Aeglefinus ◽  
Northeast Atlantic ◽  
Food And Feeding ◽  
Haddock Melanogrammus Aeglefinus

scholarly journals FOOD AND FEEDING HABITS OF SOME FISH SPECIES IN OGUN STATE COASTAL ESTUARY, OGUN STATE, NIGERIA

2017 ◽  
Vol 16 (1) ◽  
pp. 61-74
Author(s):  
W. O. ABDUL ◽  
I. T. OMONIYI ◽  
A. O. AGBON ◽  
F. I. ADEOSUN ◽  
O. S. OLOWE ◽  
...  
Keyword(s):  
Fish Species ◽  
Feeding Habits ◽  
Stomach Contents ◽  
Diet Breadth ◽  
Frequency Of Occurrence ◽  
Ogun State ◽  
Tilapia Zillii ◽  
Coastal Estuary ◽  
Study Results ◽  
Food And Feeding

The food and feeding habits of eight (8) fish species Elops lacerta, Chrysichthys auratus, Schilbe mys-tus, Sardinella maderensis, Synodontis schall, Hepsetus odoe, Tilapia zillii and Mugil cephalus in Ogun estuary, Ogun State, Nigeria were studied and estimated for six months, between February and July, 2014. A total of 470 fishes were randomly collected from the commercial fishermen during the study. Results from the stomach contents analysed using frequency of occurrence and numerical methods showed that S. mystus, E. lacerta, S. maderensis, H. odoe, S. schall, T. zillii, M. cephalus and C. auratus were predators, piscivores, herbivores, piscivores, omnivores, herbivores, herbivores and omnivores respectively while H. odoe and S.mystus partly fed on E. lacerta and T. zillii respec-tively. The Diet Breadth (D) ranged from 0.76 to 0.88 and the percentage Gut Repletion Index (GRI), a reflection of frequency of feeding, ranged between 60-100%.

scholarly journals The effect of Nordmøre grid length and angle on codend entry of bycatch fish species and shrimp catches

2019 ◽  
Vol 76 (2) ◽  
pp. 308-319 ◽  
Author(s):  
Roger B. Larsen ◽  
Manu Sistiaga ◽  
Bent Herrmann ◽  
Jesse Brinkhof ◽  
Ivan Tatone ◽  
...  
Keyword(s):  
Fish Species ◽  
Gadus Morhua ◽  
Melanogrammus Aeglefinus ◽  
Northern Shrimp ◽  
Shrimp Trawl ◽  
Fisheries Bycatch ◽  
Shrimp Fisheries ◽  
Trawl Fisheries ◽  
Grid Length ◽  
Haddock Melanogrammus Aeglefinus

The Nordmøre grid is regarded as an efficient bycatch-reducing device and is used in various shrimp trawl fisheries globally. However, in some shrimp fisheries, bycatch remains a problem that seriously impacts commercial trawl activities. This study tested and compared the performance of two versions of the Nordmøre grid in the northeast Arctic deepwater (northern) shrimp (Pandalus borealis) fishery, a standard version with an operating angle of approximately 45° and a longer version of the grid (40% longer) with an operating angle of approximately 30°. The grid passage probability for the bycatch of juvenile cod (Gadus morhua), haddock (Melanogrammus aeglefinus), American plaice (Hippoglossoides platessoides), and redfish (Sebastes spp.) increased significantly for certain size ranges of fish when using the longer grid. The longer grid also resulted in a significant increase in grid passage probability for large shrimp. Previous studies have reported that a reduced operating angle can lead to a lower grid passage probability for bycatch fish species and shrimp; however, the results of the current study demonstrate that a longer Nordmøre grid more than compensates for the reduced operational angle.

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