Abstract
| Original language | English |
|---|---|
| Journal | Canadian Journal of Fisheries and Aquatic Sciences |
| Volume | 74 |
| Issue number | 8 |
| Pages (from-to) | 1243-1250 |
| ISSN | 0706-652X |
| DOIs | |
| Publication status | Published - 2017 |
| Externally published | Yes |
Keywords
- FLATFISH HERDING BEHAVIOR
- TOWED FISHING GEARS
- BOTTOM-TRAWL
- CODEND SELECTIVITY
- SPECIES SELECTIVITY
- BYCATCH REDUCTION
- ARTIFICIAL-LIGHT
- TWINE THICKNESS
- CATCH RATES
- NORTH-SEA
- Science & Technology
- Life Sciences & Biomedicine
- Ecology, Evolution, Behavior and Systematics
- Aquatic Science
- demersal fish
- equipment
- fishing gear
- flatfish
- gadoid
- lobster
- meta-analysis
- stratification
- Atlantic Ocean
- Atlantic Ocean (North)
- Gadiformes
- Gadus morhua
- Lophius piscatorius
- Melanogrammus
- Melanogrammus aeglefinus
- Merlangius merlangus
- Microstomus kitt
- Nephrops
- Pleuronectes
- Pleuronectes platessa
- Pleuronectiformes
- Pollachius virens
- Mathematical biology and statistical methods
- Ecology: environmental biology - Animal
- Ecology: environmental biology - Limnology
- Animals, Chordates, Fish, Nonhuman Vertebrates, Vertebrates
- vertical stratification
Cite this
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A meta-analysis of vertical stratification in demersal trawl gears. / Fryer, R. J.; Summerbell, K.; O'Neill, F. G.
In: Canadian Journal of Fisheries and Aquatic Sciences, Vol. 74, No. 8, 2017, p. 1243-1250.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - A meta-analysis of vertical stratification in demersal trawl gears
AU - Fryer, R. J.
AU - Summerbell, K.
AU - O'Neill, F. G.
PY - 2017
Y1 - 2017
N2 - A meta-analysis is presented of fishing trials that use trawl gear with horizontal separator panels to direct fish into an upper or lower codend. The analysis is applied to eight North Atlantic species: the gadoids cod (Gadus morhua), haddock (Melanogrammus aeglefinus), saithe (Pollachius virens), and whiting (Merlangius merlangus), the flatfish lemon sole (Microstomus kitt) and plaice (Pleuronectes platessa), and monkfish (Lophius piscatorius) and Nephrops (Nephops norvegicus). The proportion of fish that rise above the separator panel decreases as the height of the leading edge of the panel increases for six of the eight species. Only monkfish and Nephrops have no significant dependency on panel height. Cod is the only species for which separation depends on the horizontal distance of the leading edge of the panel from the ground gear, with the proportion of cod going above the panel increasing the farther the panel is from the ground gear. The time of day only affects the separation of plaice, with a greater proportion going above the panel at night than during the day.
AB - A meta-analysis is presented of fishing trials that use trawl gear with horizontal separator panels to direct fish into an upper or lower codend. The analysis is applied to eight North Atlantic species: the gadoids cod (Gadus morhua), haddock (Melanogrammus aeglefinus), saithe (Pollachius virens), and whiting (Merlangius merlangus), the flatfish lemon sole (Microstomus kitt) and plaice (Pleuronectes platessa), and monkfish (Lophius piscatorius) and Nephrops (Nephops norvegicus). The proportion of fish that rise above the separator panel decreases as the height of the leading edge of the panel increases for six of the eight species. Only monkfish and Nephrops have no significant dependency on panel height. Cod is the only species for which separation depends on the horizontal distance of the leading edge of the panel from the ground gear, with the proportion of cod going above the panel increasing the farther the panel is from the ground gear. The time of day only affects the separation of plaice, with a greater proportion going above the panel at night than during the day.
KW - FLATFISH HERDING BEHAVIOR
KW - TOWED FISHING GEARS
KW - BOTTOM-TRAWL
KW - CODEND SELECTIVITY
KW - SPECIES SELECTIVITY
KW - BYCATCH REDUCTION
KW - ARTIFICIAL-LIGHT
KW - TWINE THICKNESS
KW - CATCH RATES
KW - NORTH-SEA
KW - Science & Technology
KW - Life Sciences & Biomedicine
KW - Ecology, Evolution, Behavior and Systematics
KW - Aquatic Science
KW - demersal fish
KW - equipment
KW - fishing gear
KW - flatfish
KW - gadoid
KW - lobster
KW - meta-analysis
KW - stratification
KW - Atlantic Ocean
KW - Atlantic Ocean (North)
KW - Gadiformes
KW - Gadus morhua
KW - Lophius piscatorius
KW - Melanogrammus
KW - Melanogrammus aeglefinus
KW - Merlangius merlangus
KW - Microstomus kitt
KW - Nephrops
KW - Pleuronectes
KW - Pleuronectes platessa
KW - Pleuronectiformes
KW - Pollachius virens
KW - Mathematical biology and statistical methods
KW - Ecology: environmental biology - Animal
KW - Ecology: environmental biology - Limnology
KW - Animals, Chordates, Fish, Nonhuman Vertebrates, Vertebrates
KW - vertical stratification
U2 - 10.1139/cjfas-2016-0391
DO - 10.1139/cjfas-2016-0391
M3 - Journal article
VL - 74
SP - 1243
EP - 1250
JO - Canadian Journal of Fisheries and Aquatic Sciences
JF - Canadian Journal of Fisheries and Aquatic Sciences
SN - 0706-652X
IS - 8
ER -