Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 143-150 |
| Number of pages | 7 |
| Journal | Journal of the Marine Biological Association of the United Kingdom |
| Volume | 92 |
| Issue number | 1 |
| Early online date | 19 Apr 2011 |
| DOIs | |
| Publication status | Published - Feb 2012 |
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Keywords
- Princaxelia
- Pardaliscidae
- Amphipoda
- in situ observations
- tropic niche
- hadal zone
- Pacific Ocean
Cite this
In situ observations of trophic behaviour and locomotion of Princaxelia amphipods (Crustacea, Pardaliscidae) at hadal depths in four West Pacific Trenches. / Jamieson, Alan John; Loerz, Anne-Nina; Fujii, Toyonobu; Priede, Imants George.
In: Journal of the Marine Biological Association of the United Kingdom, Vol. 92, No. 1, 02.2012, p. 143-150.Research output: Contribution to journal › Article
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TY - JOUR
T1 - In situ observations of trophic behaviour and locomotion of Princaxelia amphipods (Crustacea, Pardaliscidae) at hadal depths in four West Pacific Trenches
AU - Jamieson, Alan John
AU - Loerz, Anne-Nina
AU - Fujii, Toyonobu
AU - Priede, Imants George
PY - 2012/2
Y1 - 2012/2
N2 - The genus Princaxelia, Pardaliscidae, is a rarely recorded, infrequently collected and hitherto observed benthic amphipod, typically found at hadal depths (>6000 m) in the Pacific Ocean trenches. Little is known about the behaviour or physiology of this genus. Using a baited camera lander, observations of Princaxelia jamiesoni were made in the Japan Trench (7703 m) and Izu–Ogasawara Trench (9316 m) and of Princaxelia aff. abyssalis in the Kermadec Trench (7966 m) and Tonga Trench (8798 m). These amphipods rapidly intercepted the bait and preyed upon smaller lysianassoid amphipods. Mean absolute swimming speeds for P. jamiesoni and P. aff. abyssalis were 4.16 cm.s-1 ± 1.8 SD and 4.02 cm.s-1 ± 0.87 SD respectively. These amphipods have the capacity for long range swimming, high manoeuvrability in close range, and efficient predatory behaviour. Burst swimming speeds for P. aff. abyssalis were 9 and 10 cm.s-1 with accelerations up to 22–25 cm.s-2.
AB - The genus Princaxelia, Pardaliscidae, is a rarely recorded, infrequently collected and hitherto observed benthic amphipod, typically found at hadal depths (>6000 m) in the Pacific Ocean trenches. Little is known about the behaviour or physiology of this genus. Using a baited camera lander, observations of Princaxelia jamiesoni were made in the Japan Trench (7703 m) and Izu–Ogasawara Trench (9316 m) and of Princaxelia aff. abyssalis in the Kermadec Trench (7966 m) and Tonga Trench (8798 m). These amphipods rapidly intercepted the bait and preyed upon smaller lysianassoid amphipods. Mean absolute swimming speeds for P. jamiesoni and P. aff. abyssalis were 4.16 cm.s-1 ± 1.8 SD and 4.02 cm.s-1 ± 0.87 SD respectively. These amphipods have the capacity for long range swimming, high manoeuvrability in close range, and efficient predatory behaviour. Burst swimming speeds for P. aff. abyssalis were 9 and 10 cm.s-1 with accelerations up to 22–25 cm.s-2.
KW - Princaxelia
KW - Pardaliscidae
KW - Amphipoda
KW - in situ observations
KW - tropic niche
KW - hadal zone
KW - Pacific Ocean
U2 - 10.1017/S0025315411000452
DO - 10.1017/S0025315411000452
M3 - Article
VL - 92
SP - 143
EP - 150
JO - Journal of the Marine Biological Association of the United Kingdom
JF - Journal of the Marine Biological Association of the United Kingdom
SN - 0025-3154
IS - 1
ER -