Cruise Heincke 1992 (North Sea)

The cruise with the FS Heincke started in Cuxhaven, Germany. The main goal of this cruise was the monitoring of algies and especially fish larvies in the North Sea. The cruise has been organised by the BAH (Biologische Anstalt Helgoland) and took altogether 14 days. The positions of the sampling stations where located on the BAH-grid, the distances between the stations where nearly 20 Sm. On every station a CTD with water sampler bottles has been deployed and a multi-plankton net has been pulled behind the ship in different water depths in order to get plankton samples from these depths.

After deployment the probes has been filtered and the plankton probes have been stored in formaldehyde for later analyses. The number of fish larvies has been counted and thereafter the fish larvies have been deep frozen.

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Cruise

Explanation

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Heincke cruise 1992 The FS Heinke in Cuxhaven, shortly before the cruise started.

Heincke cruise 1992 The label of the BAH (Biologische Anstalt Helgoland). This institute gone together with the AWI (Alfred Wegener Institute) and is today not existend anymore.

Heincke cruise 1992 Due to problems with the multi-plankton net, we stopped on the island Helgoland to fix the problem there.

Heincke cruise 1992 The deployment of the multi-plankton net was very difficult, especially during strong wind conditions. When the wind has been stronger than 4 Bf at least 3 persons are necessary to ensure a save deployment. We used the net up to 7 Bf but even so we lost some of the nets due to the bad weather.

Heincke cruise 1992 On this picture the CTD has been deployed, the winch cable can be seen outside the ship.

Heincke cruise 1992 Preparation of the multi-plankton net short before deployment. The big metal body is connected to the winch. The five black ropes are a part of the net change mechanisms. On the right side the red plastic tubes represent the end of the net, where the plankton is collected.

Heincke cruise 1992 We passed a lot of offshore oil and gas platforms during this cruise.

Heincke cruise 1992 During this cruise we also caught fish with a small fishing net. The preparations to get the net back on board can be seen on this picture.

Heincke cruise 1992 Finally, the net is back on board and the analyses of the caught fish begun.

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Cruise	Explanation	Thumbnail
Heincke cruise 1992	The FS Heinke in Cuxhaven, shortly before the cruise started.
Heincke cruise 1992	The label of the BAH (Biologische Anstalt Helgoland). This institute gone together with the AWI (Alfred Wegener Institute) and is today not existend anymore.
Heincke cruise 1992	Due to problems with the multi-plankton net, we stopped on the island Helgoland to fix the problem there.
Heincke cruise 1992	The deployment of the multi-plankton net was very difficult, especially during strong wind conditions. When the wind has been stronger than 4 Bf at least 3 persons are necessary to ensure a save deployment. We used the net up to 7 Bf but even so we lost some of the nets due to the bad weather.
Heincke cruise 1992	On this picture the CTD has been deployed, the winch cable can be seen outside the ship.
Heincke cruise 1992	Preparation of the multi-plankton net short before deployment. The big metal body is connected to the winch. The five black ropes are a part of the net change mechanisms. On the right side the red plastic tubes represent the end of the net, where the plankton is collected.
Heincke cruise 1992	We passed a lot of offshore oil and gas platforms during this cruise.
Heincke cruise 1992	During this cruise we also caught fish with a small fishing net. The preparations to get the net back on board can be seen on this picture.
Heincke cruise 1992	Finally, the net is back on board and the analyses of the caught fish begun.