RV Cefas Endeavour 20/07
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cefas Endeavour (74E9) |
| Cruise identifier | 20/07 |
| Cruise period | 2007-11-07 — 2007-12-08 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | Aims
1. To carry out a trawl survey of the Irish Sea, Celtic Sea and western English Channel (ICES divisions VII a, e-j), using the modified GOV trawl with rockhopper ground gear on hard grounds and standard IBTS GOV trawl on fine grounds, as part of the west coast IBTS series and in support of the EU data regulations, to obtain information on: (a) Distribution, size composition and relative abundance of fish, cephalopods, and benthic invertebrates (b) Age-length distribution of commercial fish species for ICES WG input and biological studies (c) Biological parameters of selected species (d) Environmental parameters (including CTD profiles and sediment samples) at trawl stations 2. To take photographs and preserve sections of gonadal tissue for microscopic validation of macroscopic maturity staging. 3. To tag and release specimens of spurdog Squalus acanthias, smooth-hound Mustelus spp., tope Galeorhinus galeus, greater-spotted dogfish Scyliorhinus stellaris and other elasmobranchs. 4. To record details of surface sightings of any marine mammals, sea turtles and pelagic fish, and record observations on jellyfish aggregations 5. To sample the epibenthos in ICES divisions VIIf-h with 2m beam trawl 6. To collect biological samples in support of research projects: (a) Scallop Pecten maximus (to be frozen) (D. Palmer, Cefas) (b) Berried edible crab Cancer pagurus (to be frozen) (D. Eaton, Cefas) (c) Tissue samples of smoothhounds Mustelus spp. and biological information on non-tagged fish (E. Farrell, University College Dublin) (d) Tissue samples of skates (Rajidae) for genetic analyses (M. Genner, MBA) (e) Alimentary tracts from a variety of fish species (C. Dawson, VLA, Weybridge) 7. To (a) Explore the topography, seabed hardness on trawl stations (less than 110 m depth) using multibeam acoustics. (b) map the distribution of demersal and pelagic fish assemblages and weak scat |
| Chief scientist | James Robert Ellis (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Project | International Irish/Celtic Sea Groundfish survey |
| Coordinating body | ICES |
| Cruise programme |  (0.01 MB) |
| Cruise report | (0.63 MB) |
| Ocean/sea areas | |
| General | English Channel Irish Sea and St. George's Channel Bristol Channel Celtic Sea |
| Specific | Irish Sea; Celtic Sea; English Cnannel |
