scholarly journals Heavy mineral variation in the deep sea sediment of southeastern Arabian Sea during the past 32 kyr

2015 ◽  
Vol 124 (2) ◽  
pp. 477-486 ◽  
Author(s):  
Vaseem Akaram ◽  
S S Das ◽  
A K Rai ◽  
Gaurav Mishra
Zootaxa ◽  
2020 ◽  
Vol 4816 (2) ◽  
pp. 229-234
Author(s):  
VINAY P. PADATE ◽  
BEE YAN LEE ◽  
SHERINE SONIA CUBELIO

A new species of spider crab is described from two male specimens collected from the southeastern Arabian Sea. This species differs from its congeners in the absence of uograstric granule on carapace, the presence of two granules along lateral margin of carapace at branchial region, the presence of granules on P2–P4 dactyli and the constricted distal tip of the male first gonopod. 


Author(s):  
Jose Ignacio Martinez ◽  
Geovanny Bedoya

Planktonic foraminifera recovered from 25 deep-sea sediment samples (core-lops) Irom the eastern Equatorial Pacific were analyzed tor thoir geographic distribution and possible environmental controls. Samples colloctod doopor than tho carbonato lysoclino (-2800 m) show significant signs of dissolution, - when compared to sediment-trap samples resulting in the increase of the solutionresistant species Neogloboquadrlna duterlrei. NeogOboquadnna pachyderma and Gioborotaha Cufrata and the reduction of tho soíuüon-suscoptiblo spocios Globigonmta glutmata. Globigennotdes ruber and Gtobigohnoidos saccuMor. Threo bioprovincos woro rocognizod by cluster analysis: (1) bioprovince I that occurs on tho Cocos Ridgo whore G. cultrata and N. pachyderma are dominant. (2) bioprovince II that occurs on the Carnegie Ridge where N. duterlrei, N. pachyderma and Globorolatia intlata aro dominant, and (3) bioprovince III that occurs in the Panama Basin whore G. saccuhtor and G. ruber aro dominant. Bioprovinces I and II reflect a shallow thormocllno inducod by upwelhng. although AOU, NO , and PO, and SiO, are significantly higher in tho lattor rogion. B-oprovinco III reflects a deeprrvxod layor and low nutriont contonts. Possiblo proxies ol tho Equatorial Front in the past are: (1) the Shannon diversity indox. ovonness and the number ot species that show a latitudinal break at -1.5*S and. (2J the G. cultrata / G. dutertrei ratio that decreases southward


2020 ◽  
Vol 36 (6) ◽  
pp. 855-857
Author(s):  
Mullasseri Sileesh ◽  
B Madhusoodana Kurup ◽  
Alphi Korath

Zootaxa ◽  
2019 ◽  
Vol 4612 (4) ◽  
pp. 566
Author(s):  
G. KUBERAN ◽  
REKHA DEVI CHAKRABORTY ◽  
P. PURUSHOTHAMAN ◽  
G. MAHESWARUDU ◽  
L. SREESANTH ◽  
...  

Here, we report the new record of deep-sea caridean shrimp Glyphocrangon investigatoris Wood-Mason & Alcock, 1891 from the Arabian Sea along the Indian coast. The three individual specimens were collected from Sakthikulangara fish landing center (fishing off Kollam 8°56’60.78”N/76°32’34.27”E) obtained from deep-sea bottom trawlers between 200 and 300 m depth along the southwest coast of India in December of 2017 and the voucher specimen was deposited to the Marine Biodiversity Referral Museum at Central Marine Fisheries Research Institute. The species of G. investigatoris is considered as one of the data deficient in distributional range, which was only recorded from northern and southern Bay of Bengal. The intraspecies genetic distance in the COI gene of G. investigatoris retrieved from NCBI revealed 0.6–0.7% while interspecies distance ranged from 5% to 26.5% and 16S was found between 1.1% to 8.1% and the closest genetic distance ranged with G. regalis. 


Sign in / Sign up

Export Citation Format

Share Document