Reproductive patterns in deep sea Ophiuroids from the North East Atlantic

2020 ◽  
pp. 417-421
Author(s):  
P.A. Tyler ◽  
J.D. Gage
Keyword(s):  
Deep Sea ◽  
East Atlantic ◽  
Reproductive Patterns ◽  
North East ◽  
The North

scholarly journals Microplastic in the stomachs of open-ocean and deep-sea fishes of the North-East Atlantic

2020 ◽  
Vol 265 ◽  
pp. 115060 ◽  
Author(s):  
João M. Pereira ◽  
Yasmina Rodríguez ◽  
Sandra Blasco-Monleon ◽  
Adam Porter ◽  
Ceri Lewis ◽  
...  
Keyword(s):  
Deep Sea ◽  
Open Ocean ◽  
East Atlantic ◽  
North East ◽  
The North

Reproductive patterns in two deep-water solitary corals from the north-east Atlantic—Flabellum alabastrumandF. angulare(Cnidaria: Anthozoa: Scleractinia)

2010 ◽  
Vol 91 (3) ◽  
pp. 669-675 ◽  
Author(s):  
Rhian G. Waller ◽  
Paul A. Tyler
Keyword(s):  
Sex Ratio ◽  
Deep Water ◽  
Oocyte Size ◽  
East Atlantic ◽  
Broadcast Spawning ◽  
Reproductive Patterns ◽  
Size Dependent ◽  
North East ◽  
The North ◽  
Rockall Trough

Gametogenesis and reproductive periodicity of the solitary scleractiniansFlabellum alabastrum(from the Rockall Trough) andF. angulare(from the Porcupine Seabight) were investigated. Samples were collected between depths from 1370 to 2190 m forF. alabastrumand 2412 to 2467 m forF. angulare. Both species showed gonochorism with a 1:1 sex-ratio and broadcast spawning of gametes is inferred from the lack of brooded planulae. Oocyte sizes were large in both species (925 μm inF. alabastrumand 1015 μm inF. angulare), suggesting lecithotrophic larval development. Fecundity and periodicity of oocyte development differed between the two species.Flabellum alabastrumproduced a maximum of 2800 oocytes per polyp quasi-continuously, whereas the deeper speciesF. angulareproduced a maximum of 550 oocytes per polyp either seasonally or periodically. Both species showed size-dependent fecundity. The data show a decrease in oocyte size and fecundity with depth, in concordance with other deep-water scleractinian species.

Fecundity of the deep-sea fish in the north-east atlantic Alepocephalus bairdii (Pisces: Alepocephalidae)

1999 ◽  
Vol 79 (4) ◽  
pp. 765-767 ◽  
Author(s):  
V. Allain
Keyword(s):  
Standard Length ◽  
Deep Sea ◽  
Batch Fecundity ◽  
East Atlantic ◽  
The West ◽  
Spawning Period ◽  
North East ◽  
The North ◽  
First Maturity ◽  
Sea Fish

Alepocephalus bairdii is a deep sea fish caught but discarded by semi-industrial fisheries from the north-east Atlantic Ocean. Reproductive features were investigated on 448 females of 29–93 cm standard length (SL) captured over 2 y (December 1995–December 1997) at 800–1280 m off the west coast of the British Isles. The first maturity of females was determined at L50=55 cm SL. A well-defined spawning period could not be determined in this species; a batch spawner characterized by an indeterminate annual fecundity. Absolute batch fecundity was estimated between 458 and 7049 oocytes per female 63–88 cm SL.

scholarly journals Consistent microplastic ingestion by deep-sea invertebrates over the last four decades (1976–2015), a study from the North East Atlantic

2019 ◽  
Vol 244 ◽  
pp. 503-512 ◽  
Author(s):  
Winnie Courtene-Jones ◽  
Brian Quinn ◽  
Ciaran Ewins ◽  
Stefan F. Gary ◽  
Bhavani E. Narayanaswamy
Keyword(s):  
Deep Sea ◽  
East Atlantic ◽  
North East ◽  
The North
Sign in / Sign up

Export Citation Format

Share Document