Fig 2 - uploaded by Bruce W Hayward
Content may be subject to copyright.
Planktic foraminifera from sediments around the Cavalli Islands, a. Globigerina bulloides, x 80, FP2908; b. Globigerina cf. calida, x 100, FP2909; c. Globigerina falconensis. x 135, FP2910; d. Globigerinoides ruber, x 100, FP2911; e. Globigerinoides trilobus, x 65, FP2912; f. Globorotalia dutertrei, x 100, FP2913; g. Globorotalia hirsuta. x 80, FP2914; h. Globorotalia inflata, x 80, FP2915; i. Globigerina quinqueloba, x 190, FP2916; j. Globorotalia scitula, x 135, FP2917, k. Globorotalia truncatulinoides, x 55. FP2918; 1. Pulleniatina obl numbers.)
Contexts in source publication
Context 1
... on the west coast of Northland than on the east coast. The reasons for this are probably related to the regional mean wind pat- terns: onshore on the west coast, offshore on the east. TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small ...
Context 2
... than on the east coast. The reasons for this are probably related to the regional mean wind pat- terns: onshore on the west coast, offshore on the east. TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult ...
Context 3
... for this are probably related to the regional mean wind pat- terns: onshore on the west coast, offshore on the east. TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 4
... regional mean wind pat- terns: onshore on the west coast, offshore on the east. TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 5
... terns: onshore on the west coast, offshore on the east. TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 6
... TAXONOMIC COMPOSITION (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 7
... (Table 1) The most common species present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 8
... present around the Cavalli Islands are Gl species in order of decreasing abundance are Globigerina bulloides (Fig. 2a), G. quinqueloba (Fig. 2i), Globorotalia truncatulinoides (Fig. 2k), Globoigerinoides ruber (Fig. 2d), G. trilobus (Fig. 2e), Hastigerina siphonifera, Globorotalia scitula (Fig. 2j), G. dutertrei (Fig. 2f), Globigerina cf. calida (Fig. 2b) and six other species represented by only one specimen each. Most specimens are juveniles or small adults; large adult specimens are ...
Context 9
... province. The transitional faunal province, characterised by abundant G. inflata and a diverse fauna of mixed cool and warm water species, is usually drawn as a narrow belt passing through most of New Zealand's waters, with the subtropical province impinging on Northland and the subpolar province immediately south of Stewart Island , x 80, FP2908; b. Globigerina cf. calida, x 100, FP2909; c. Globigerina falconensis. x 135, FP2910; d. Globigerinoides ruber, x 100, FP2911; e. Globigerinoides trilobus, x 65, FP2912; f. Globorotalia dutertrei, x 100, FP2913; g. Globorotalia hirsuta. x 80, FP2914; h. Globorotalia inflata, x 80, FP2915; i. Globigerina quinqueloba, x 190, FP2916; j. Globorotalia scitula, x 135, FP2917, k. Globorotalia truncatulinoides, x 55. FP2918; 1. Pulleniatina obl numbers.) (Eade 1973, Be ...
Context 10
... especially G. scitula, G. truncatulinoides and Orbulina universa. Species that are more characteristic of the subpolar province are G. bulloides and G. quinqueloba, and those more typical of the subtropical province are G. cf. calida, G. ruber, G. trilobus (possibly a variant of Globigerinoides sa siphonifera and Pulleniatina obliqueloculata (Fig. ...
Similar publications
Streszczenie. Jako przedmiot eksploracyjnych analiz, prezentowanych w niniejszym opracowania, posłużyły wyniki rutynowych ważeń kontrolnych prowadzonych w amatorskiej hodowli królików. Na ich podstawie oszacowano parametrów krzywych wzrostu modelami Gompertza i Richardsa. Celem analiz było porównanie uzyskanych wyników między grupami genetycznymi o...
To explore social media use in New Zealand, a sample of 1001 adults aged 18 and over were surveyed in November 2021. Participants were asked about the frequency of their use of different social media platforms (text message included). This report describes how often each of the nine social media sites and apps covered in the survey are used individ...
Citations
... We were encouraged to study the ostracods from around the Cavalli Islands by the existence of picked ostracod faunal slides, made by one of us (BWH) while studying the foraminiferal faunas ~1980 (Hayward 1979(Hayward , 1982a, and by the expectation that these might contain further species additions to the known New Zealand fauna. The biodiversity of New Zealand marine ostracods is still incompletely documented and their biogeography and ecological distribution is even less well known. ...
One hundred and twelve species of marine ostracod are recorded from 0-29 m depth around the
Cavalli Islands, northeast Northland – the most diverse ostracod fauna from a relatively small
area (10 km2) documented so far from New Zealand. Thirty of these species are additions to the
known Recent (living) ostracod fauna of this country, although only ten have been identified to
named species – the Recent Australian species Callistocythere dorsotuberculata paucicostata,
Callistocythere keiji, Callistocythere ventroalata, Lankacythere coralloides, Neohornibrookella
lactea, Papillatabairdia elongata, Tasmanocypris dietmarkeyseri, Xestoleberis posidonicola,
Yassinicythere bassiounii and the fossil (early Miocene) New Zealand species Hemicythere
tarakohensis. This brings the total marine ostracod fauna in the New Zealand EEZ to 496 species,
of which 229 (46%) are recorded from shelf depths (0-200 m) in the Aupourian Province, east of
northern New Zealand.
Cluster analysis of 113 quantitative ostracod samples from inner-mid shelf depths east of
Northland and Auckland resulted in the recognition of 14 subassociations in 4 associations. The
majority of the Cavalli faunas cluster together in three subassociations with the most diverse faunas
and lowest species dominance, characterised by common Loxoconcha punctata. Subdominant
in the shallowest subassociation is Xestoleberis olivacea, whereas Neonesidea amygdaloides,
Quadracythere biruga and Ambostracon pumilum are subdominant in the other two subassociations
in coarser sediment in the current-swept Cavalli Passage. One distinctly different unclustered
Cavalli Islands ostracod fauna occurs in strong current-swept, shell gravel between rocky islets
at 9 m depth and is strongly dominated (48%) by Xestoleberis chilensis austrocontinentalis with
subdominant Polycope sp. and Parapolycope cf. loscobanosi.
... The number of planktonic foraminifera in the surface sediments is comparable to that reported in many other parts of the world including shallow and coastal areas (e.g. Boltovskoy & Wright, 1976;Hayward, 1979). On the other hand, the dominance of G. ruber across the study area is in agreement with the fact that this species generally dominates in the oligotrophic coastal waters (e.g. ...
Globigerinoides ruber is a common planktonic foraminifera often used in paleoceanographic studies. There exist two chromotypes of the species (pink and white). At present, the white chromotype is cosmopolitan in distribution, while the pink chromotype is geographically restricted to the Atlantic Ocean and its adjacent seas (locally extinct from the Indo-Pacific region since 0.12 Ma). We have documented for the first time the presence of the pink chromotype of G. ruber from north-western Bay of Bengal (Rushikulya, Orissa coast of India) and we emphasize on the occurrence of both the chromotypes of G. ruber in this part of the Indian Ocean.
... The foraminiferal microfaunas contain 0-2% planktics, typical for sheltered, shallow locations on the east coast (Hayward 1979). ...
Eighty-seven species of foraminifera have been identified from five samples of nearshore sediment (shelly medium sand, clean fine-medium sand) taken from 4-10 m depth off the southwestern corner of Whale Island, Bay of Plenty , New Zealand. The faunas are dominated by Discorbis dimidiatus, Elphidium charlotten-sis, Pileolina zealandica, Quinqueloculina seminula, Miliolinella subrotundata, Rosalina bradyi, and Elphidium novozealandicum. This is very similar to other shelly sand or clean sand faunas in shallow, exposed or current-swept environments elsewhere in northern New Zealand. These Whale Island samples provide the southermost records of a number of warm-water species that occur commonly further north.
... Hayward (1983) updated their taxonomy in the light of major overseas revisions, and presented an illustrated review of all taxa occurring in New Zealand waters, and their broad distribution. A similar study to the present one was made on the planktic foraminifera of inner shelf sediments around the Cavalli Islands, east coast of Northland by Hayward (1979a). Previous records of planktic foraminifera in the present study area around Kawerua have been included in Hedley et al (1965) and Hayward (1979b). ...
... INTRODUCTION 57 dredge samples of surface sediment were taken from the inner shelf (0-41 m depth) around the Cavalli Islands during the Offshore Islands Research Group's trip, New Year 1978-1979. The Cavalli Islands (longitude 174°E, latitude 35°S) lie 2-3 km off the east coast of Northland, between the Bay of Islands and Whangaroa Harbour (Fig. 1). ...
... This paper describes the benthic foraminiferal associations of 55 of the 57 dredge stations. 6 of the 267 benthic foraminiferal species identified in these samples (taxonomic account in preparation) currents (Hayward 1980). Planktics comprise 0-10% of the foraminiferal faunas and are dealt with elsewhere (Hayward 1979). ...
... 6 of the 267 benthic foraminiferal species identified in these samples (taxonomic account in preparation) currents (Hayward 1980). Planktics comprise 0-10% of the foraminiferal faunas and are dealt with elsewhere (Hayward 1979). Previous studies of the foraminifera of northern New Zealand have concentrated on the fauna of estuaries (Gregory 1973;Topping 1973), enclosed harbours (Hulme 1964;Adams 1979;Brook et al. 1981), or large areas of shelf and bathyal sea floor (Thompson 1975;Hoskins 1978). ...
Samples are grouped into 4 associations with 5 subassociations. The associations are A. Elphidium charlottensis - subassociations Al. Elphidium charlottensis/Elphidium oceanicum/(Virgulopsis turris), A2. Elphidium charlottensis/(Elphidium oceanicum/Elphidium simplex) - in sandy beach gravel or fine to very fine sand in shallow bays (intertidal to 6 m depth) on a sheltered coast; B. Pileolina zealandica/Cibicides marlboroughensis - subassociations B1. Discorbis dimidiatus/Elphidium novozealandicum/Pileolina zealandica, B2. Pileolina zealandica/Cibicides marlboroughensis/Neoconorbina pacifica, B3. Cibicides marlboroughensis/Quinqueloculina seminula/Notorotalia olsoni - widespread in clean, medium to coarse sand or shell gravel in moderately exposed or current-swept locations (5-10 m depth); C. Planoglabratella opercularis/Pileolina harmeri/Neoconorbina pacifica, in shelly, very coarse sand or shell gravel in shallow (6-9 m), strongly current-swept, wave-battered channels; D. Cassidulina carinata/Bulimina submarginata/Globocassidulina canalisuturata, in fine to very fine sand in the deeper (29-41 m), northern parts of the Cavalli Passage. The habit of fusing together in plastogammic pairs during the sexual phase of reproduction appears to be an adaptation to survival in strongly current-swept environments. Species diversity and evenness increase regularly with increasing depth. There is good correlation between these foraminiferal associations and macrofaunal associations.-from Author
... All nine species of planktic foraminifera recorded in the harbour sediments are common around northern New Zealand (Hayward 1979). Three species of Globigerina (G. ...
... falconensis, G. quinqueloba and G. bulloides) comprise over 90% of the planktic fauna in the samples studied. This is in marked contrast to the planktic faunas of more openwater, nearshore sediments around north-eastern New Zealand, where Globorotalia inflata and G. falconensis are the co-dominants and G. bulloides and G. quinqueloba are less than 10% each (Hayward 1979). ...
... The dominant taxa are Globorotalia inflata (50% of planktics) and Globigerina falconensis (14%) with subdominant Globigerina bulloides, Globigerinoides ruber, G. trilobus, Globorotalia crassula and G. truncatulinoides (each 4-9%). This composition is remarkably similar to that found in similar near-shore, open-water sediments around the Cavalli Islands, 230 km to the northwest (Hayward 1979). Benthics ...
... The three more exposed and deeper water samples from the Albert Channel and Rawhiti Inlet (stns 5, 18, 33) contain 0.3%, 2.3% and 1.6% planktic foraminifera respectively. The five taxa present are among the more common species living in waters around northern New Zealand today (Hayward 1979, Kustanowich 1963. ...
... Upon arrival of the dredge at the surface, the volume of each sample was estimated as tenths of the dredge filled, to enable crude quantitative estimates of the biota to be made. (About 100 to 150 mis of sediment was removed for textural analysis, and for analysis of populations of foraminifera (Hayward 1979Hayward , 1980). The rest of the sample was then passed over a wire mesh sieve with 2 mm openings. ...
... The Cavalli Islands (latitude 35° 00' S, longitude 173° 57' E) he 2-4 km off the east coast of Northland midway between the Bay of Islands and Whangaroa Harbour (Harward 1979a). The foraminifera studied are from 55 dredge samples of surface sediments taken at 0 to 41 m during the Offshore Islands Research Group trip at New Year 1978Year -1979 (Hayward 1979b, Grace & Hayward 1980. "Live" individuals were distinguished using the protoplasm stain, Rose Bengal. ...
