and J. Paz
A quali tat ive study of the food composit ion of Greenland halibut (Reinhardtius hippoglossoides) was made by on-board analysis of commercially caught fish in 1992. The fish were caught east of Newfoundland (NAFO Div. 3LM) in unusually deep waters, with an average of 1 040 m. Variations in feeding...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.589.9910 2023-05-15T16:27:52+02:00 and J. Paz E. Rodríguez-marín A. Punzón Museo Marítimo Del Cantábrico The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9910 http://archive.nafo.int/open/studies/s23/rodrigue.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9910 http://archive.nafo.int/open/studies/s23/rodrigue.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://archive.nafo.int/open/studies/s23/rodrigue.pdf Key words Depth Flemish Pass food Greenland halibut NAFO Sci. Coun. Studies 23 43–54 text ftciteseerx 2016-01-08T13:26:17Z A quali tat ive study of the food composit ion of Greenland halibut (Reinhardtius hippoglossoides) was made by on-board analysis of commercially caught fish in 1992. The fish were caught east of Newfoundland (NAFO Div. 3LM) in unusually deep waters, with an average of 1 040 m. Variations in feeding according to predator size, depth and month were studied. The annual average percentage of empty stomachs was 69%, increasing through the year for specimens over 60 cm. The frequency of occurrence (FO) of food items was used to evaluate the importance of prey groups. Fish (39%), cephalopods (32%) and decapod crustaceans (22%) were the main items, with cannibalism reaching 2%. An abrupt change in diet composition occurred in fish between 60 and 69 cm, from feeding on decapod crustaceans and cephalopods to fish and factory ship discarded offal. The influence of the fishery itself on the diet of Green-land halibut was observed when an important food component in the largest specimens (>60 cm) consisted of offal discarded after fish processing. This study indicates that the FO of the main prey groups bears more relation to the size of fish than with depth. Text Greenland Newfoundland Unknown Greenland |
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English |
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Key words Depth Flemish Pass food Greenland halibut NAFO Sci. Coun. Studies 23 43–54 |
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Key words Depth Flemish Pass food Greenland halibut NAFO Sci. Coun. Studies 23 43–54 E. Rodríguez-marín A. Punzón Museo Marítimo Del Cantábrico and J. Paz |
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Key words Depth Flemish Pass food Greenland halibut NAFO Sci. Coun. Studies 23 43–54 |
description |
A quali tat ive study of the food composit ion of Greenland halibut (Reinhardtius hippoglossoides) was made by on-board analysis of commercially caught fish in 1992. The fish were caught east of Newfoundland (NAFO Div. 3LM) in unusually deep waters, with an average of 1 040 m. Variations in feeding according to predator size, depth and month were studied. The annual average percentage of empty stomachs was 69%, increasing through the year for specimens over 60 cm. The frequency of occurrence (FO) of food items was used to evaluate the importance of prey groups. Fish (39%), cephalopods (32%) and decapod crustaceans (22%) were the main items, with cannibalism reaching 2%. An abrupt change in diet composition occurred in fish between 60 and 69 cm, from feeding on decapod crustaceans and cephalopods to fish and factory ship discarded offal. The influence of the fishery itself on the diet of Green-land halibut was observed when an important food component in the largest specimens (>60 cm) consisted of offal discarded after fish processing. This study indicates that the FO of the main prey groups bears more relation to the size of fish than with depth. |
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The Pennsylvania State University CiteSeerX Archives |
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Text |
author |
E. Rodríguez-marín A. Punzón Museo Marítimo Del Cantábrico |
author_facet |
E. Rodríguez-marín A. Punzón Museo Marítimo Del Cantábrico |
author_sort |
E. Rodríguez-marín |
title |
and J. Paz |
title_short |
and J. Paz |
title_full |
and J. Paz |
title_fullStr |
and J. Paz |
title_full_unstemmed |
and J. Paz |
title_sort |
and j. paz |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9910 http://archive.nafo.int/open/studies/s23/rodrigue.pdf |
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Greenland |
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Greenland |
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Greenland Newfoundland |
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Greenland Newfoundland |
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http://archive.nafo.int/open/studies/s23/rodrigue.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.589.9910 http://archive.nafo.int/open/studies/s23/rodrigue.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766017435498971136 |