TY - JOUR
T1 - Cysts and sediments
T2 - Gonyaulax Polyedra (Lingulodinium Machaerophorum) in Loch Creran
AU - Lewis, Jane
N1 - Funding Information:
This work was carried out under NERC Grant no. GR3/5511. I am grateful to the Scottish Marine Biological Association for accommodation and facilities. Thanks also go to the skipper and crew of the R.V. 'Seol Mara' for assistance on sampling trips and to P. Tett, A. Edwards, K. Jones, J. D. Dodge and P. Holmes for helpful discussion.
PY - 1988/11
Y1 - 1988/11
N2 - The distribution of Lingulodinium machaerophorum and a calcareous Scrippsiella cyst were investigated in Loch Creran (west coast of Scotland) in comparison with the distribution of fine grained sediments. A water-column survey showed the abundance of Gonyaulax polyedra (the motile thecate stage) to be highest in the upper loch and at the head of the lower loch. In the region of this high thecate cell abundance, cyst densities in the sediment showed no relation to grain size distribution, remaining uniformly high. In the other areas of the loch, sediment cyst densities increased with increasing amounts of the fine grained fraction in the sediment with a plateau of cyst numbers when 50–60% of the sediment was less than 63 pm. The calcareous Scrippsiella cyst showed a similar distribution but no plateau of numbers was reached. Numbers of whole Lingulodinium machaerophorum calculated for the whole loch (250 × 109 cysts in the top 1 cm) is higher than previously estimated, further emphasizing the size of the cyst pool in Loch Creran.
AB - The distribution of Lingulodinium machaerophorum and a calcareous Scrippsiella cyst were investigated in Loch Creran (west coast of Scotland) in comparison with the distribution of fine grained sediments. A water-column survey showed the abundance of Gonyaulax polyedra (the motile thecate stage) to be highest in the upper loch and at the head of the lower loch. In the region of this high thecate cell abundance, cyst densities in the sediment showed no relation to grain size distribution, remaining uniformly high. In the other areas of the loch, sediment cyst densities increased with increasing amounts of the fine grained fraction in the sediment with a plateau of cyst numbers when 50–60% of the sediment was less than 63 pm. The calcareous Scrippsiella cyst showed a similar distribution but no plateau of numbers was reached. Numbers of whole Lingulodinium machaerophorum calculated for the whole loch (250 × 109 cysts in the top 1 cm) is higher than previously estimated, further emphasizing the size of the cyst pool in Loch Creran.
UR - https://www.scopus.com/pages/publications/0024189175
UR - https://www.scopus.com/pages/publications/0024189175#tab=citedBy
U2 - 10.1017/S0025315400028812
DO - 10.1017/S0025315400028812
M3 - Article
AN - SCOPUS:0024189175
SN - 0025-3154
VL - 68
SP - 701
EP - 714
JO - Journal Of The Marine Biological Association Of The United Kingdom
JF - Journal Of The Marine Biological Association Of The United Kingdom
IS - 4
ER -