grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean
The responses of the grenadier fish Coryphaenoidcs (Ncmatonurus) armatus to bait deployed on the sea floor at station M in the North Pacific Ocean (34”50’N, 123”OO’W; 4,100 m deep) in February and October were compared. In February 1990 and 1992, the first fish arrived after an avcragc time of 25 mi...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.490.1130 2023-05-15T17:36:01+02:00 grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean I. G. Priede P. M. Ragley K. L. Smith The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.490.1130 http://www.aslo.org/lo/toc/vol_39/issue_2/0279.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.490.1130 http://www.aslo.org/lo/toc/vol_39/issue_2/0279.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_39/issue_2/0279.pdf Diack for help in dcploymcnt and operation of the AU text ftciteseerx 2016-01-08T08:27:38Z The responses of the grenadier fish Coryphaenoidcs (Ncmatonurus) armatus to bait deployed on the sea floor at station M in the North Pacific Ocean (34”50’N, 123”OO’W; 4,100 m deep) in February and October were compared. In February 1990 and 1992, the first fish arrived after an avcragc time of 25 min and stayed an average of 150 min. In October 199 1, the respcctivc times were 15 and 98 min. The faster response in October is correlated with a higher mean swimming speed of 0.0692 m s ’ compared with 0.0262 m s ’ in February. Fish activity was clcvatcd in October following seasonal enrichment to the benthos by downward flux of particulate organic matter from the surface. Grenadier abundance was estimated from arrival times as 325 individuals km l, corresponding to a wet weight biomass of 146 mg m 7 or 10.2 mgC m ‘. Coryphaenoids (Nematonurus) armatus is a ubiquitous demersal scavenger living at depths between 2,200 and 5,400 m in the North Pacific and North Atlantic Oceans (Merrett 1992). Priede ct al. (199 1) found that this spe-cies, with Coryphaenoides (Ncmatonurus) ya-quinae, is the dominant consumer ofbait placed on the abyssal sea floor in the northern hemi-sphere. Baited cameras invariably observed these grenadiers swimming against the current, following an odor plume to locate a food fall (Wilson and Smith 1984). Such experiments have been used as a qualitative means of study-ing the mobile abyssal megafauna for at least two decades (Isaacs and Schwartzlose 1975). Desbruyeres et al. (1985) observed that C. (N.) armatus was present for several tidal cycles-its numbers fluctuating with the tide Priede and Smith (1986) showed that fish could be induced to ingest acoustic transmit-ters placed in baits; to ensure that these fish Text North Atlantic Unknown Pacific |
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Diack for help in dcploymcnt and operation of the AU I. G. Priede P. M. Ragley K. L. Smith grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
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description |
The responses of the grenadier fish Coryphaenoidcs (Ncmatonurus) armatus to bait deployed on the sea floor at station M in the North Pacific Ocean (34”50’N, 123”OO’W; 4,100 m deep) in February and October were compared. In February 1990 and 1992, the first fish arrived after an avcragc time of 25 min and stayed an average of 150 min. In October 199 1, the respcctivc times were 15 and 98 min. The faster response in October is correlated with a higher mean swimming speed of 0.0692 m s ’ compared with 0.0262 m s ’ in February. Fish activity was clcvatcd in October following seasonal enrichment to the benthos by downward flux of particulate organic matter from the surface. Grenadier abundance was estimated from arrival times as 325 individuals km l, corresponding to a wet weight biomass of 146 mg m 7 or 10.2 mgC m ‘. Coryphaenoids (Nematonurus) armatus is a ubiquitous demersal scavenger living at depths between 2,200 and 5,400 m in the North Pacific and North Atlantic Oceans (Merrett 1992). Priede ct al. (199 1) found that this spe-cies, with Coryphaenoides (Ncmatonurus) ya-quinae, is the dominant consumer ofbait placed on the abyssal sea floor in the northern hemi-sphere. Baited cameras invariably observed these grenadiers swimming against the current, following an odor plume to locate a food fall (Wilson and Smith 1984). Such experiments have been used as a qualitative means of study-ing the mobile abyssal megafauna for at least two decades (Isaacs and Schwartzlose 1975). Desbruyeres et al. (1985) observed that C. (N.) armatus was present for several tidal cycles-its numbers fluctuating with the tide Priede and Smith (1986) showed that fish could be induced to ingest acoustic transmit-ters placed in baits; to ensure that these fish |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
I. G. Priede P. M. Ragley K. L. Smith |
author_facet |
I. G. Priede P. M. Ragley K. L. Smith |
author_sort |
I. G. Priede |
title |
grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
title_short |
grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
title_full |
grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
title_fullStr |
grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
title_full_unstemmed |
grenadiers Coryphaenoides (Nematonurus) armatus in the eastern North Pacific Ocean |
title_sort |
grenadiers coryphaenoides (nematonurus) armatus in the eastern north pacific ocean |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.490.1130 http://www.aslo.org/lo/toc/vol_39/issue_2/0279.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://www.aslo.org/lo/toc/vol_39/issue_2/0279.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.490.1130 http://www.aslo.org/lo/toc/vol_39/issue_2/0279.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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