220 



DISCOVERY REPORTS 



Table 12 {cont.) 



First survey 

 39 stations 



Species or category 

 DlATOMACEA 

 Ditylum brightu-elli (West) Griinow 

 Hemialus hauckii Griinow 

 Eucampia cornula (Cleve) Griinow 



E. zoodiacus Ehrenberg 

 Chaetoceros affine Lauder 

 C. atlanticum Cleve 



C. compressum Lauder 



C. constrictum Gran 



C. convolutum Castracane 



C. costatum Pavilliard 



C. curvatum Castracane 



C. curvisetum Cleve 



C. debile Cleve 



C. decipiens Cleve 



C densum Cleve 



C. difficile Cleve 



C. didymum Ehrenberg (vegetative phases) 



C. didymum Ehrenberg (resting spores) 



C. holsaticum Schiitt 



C. imbricatuin Mangin 



C. laciniosum Sthutt 



C. lorenzianum Griinow 



C. parallelis Boden 



C. periwianum Brightwell 



C. pseudocrinitum Ostenfeld 



C. sociale Lauder 



C. strictum Karsten 



C. subsecundum (Griin.) Hustedt 



C. subsecundum (Griin.) Hustedt (resting spores) 



C. teres Cleve 



C. tetras Karsten 



C. van heurcku Gran 



Chaetoceros spp. non det. 



Bacteriastrum delicatulum Cleve 



B. hyalinum Lauder 



B. varians Lauder 



Rliizosolenia alata Brightwell 



R. cylindrus Cleve 



R. fragilissima Bergon 



R. hebetata (Bailey) Gran 



R. imbricata Brightwell 



R. robusta Norman ex Pritchard 



R. setigera Brightwell 



R. simplex Karsten 



R. stolterfothii H. Peragallo 



R. tyliformis Brightwell 



Guinardia blavyana H. Peragallo 



Guinardia sp. non det. 



Leptocylindris danicus Cleve 



Dactyliosolen mediterraneus H. Peragallo 



Corethron criophilum Castracane 



Fragilaria granulata Karsten 



F. karsteni (Karsten) Boden 



AsteHonella japonica Cleve & Moller ex Gran 



Thalassiothrix frauenfeldii (Griin.) Cleve & Griin. 



T. longissima Cleve ex Griinow 



Thalassionema nitzschioides (Griin.) Hustedt 



Striatella sp. non det. 



Achnanthes longipes Agardh 



Navicula membranacea Cleve 



Navicula spp. non det. 



Pleurosigma capense Karsten 



Pleurosigma sp. non det. 



Nitzschia closterium (Ehrb.) Wm. Smith 



N. delicatissima Cleve 



N. longissima (Breb.) Ralfs 



A r . seriata Cleve 



Present 



11 



2 



17 

 22 



17 



4 

 2 

 15 

 4 

 5 



8 



[2 

 '3 



I 

 I 



2 



8 



2 



1 



11 



1 1 



3 



IS 



4 



9 



3 



2 



1 



23 



1 



26 



7 



3 



8 



2 

 7 



1 



5 

 7 

 5 

 1 



5 

 17 



Domi- 

 nant 



4 

 1 



13 

 12 



7 



4 



o 



11 



3 



1 



22 

 1 



3 



3 



3 



10 



10 



2 



22 



5 

 6 

 6 



o 

 o 

 o 



o 

 I 

 o 

 7 

 3 

 o 



7 

 1 



5 

 2 



o 

 o 

 6 



o 



12 



1 



o 



2 

 O 



o 

 o 



2 

 I 



Second survey 

 3g stations 

 (repeated) 



Six extra 



stations to 



south of 



main area 



Three extra 



stations to 



north of 



main area 



Four dis- 

 coloured 

 water- 

 samples 



Station 



WS 1076 



(extra, no 



counterpart on 



first survey) 



Present 



Domi- 

 nant 



Present 



Do?ni- 

 nant 



Present 



Domi- 

 nant 



Present >5% Present 



Domi- 

 nant 



4 

 IS 

 22 

 26 

 22 



I 



18 



4 



14 



4 

 10 



3 

 3 



1 



14 



1 



10 



5 

 10 



3 



2 

 22 



13 



17 



2 

 10 

 17 

 14 



9 

 14 



29 



7 



6 

 21 



6 

 28 



1 



5 

 14 

 19 



5 

 o 



12 



2 



o 

 II 



10 



I 

 o 

 o 

 o 

 o 

 o 



o 

 9 



18 



— 2 



