John Nevill

10.2K posts

John Nevill banner
John Nevill

John Nevill

@Seychellesharks

Environment professional with a special research interest in the sharks of Seychelles and related fisheries.

Seychelles انضم Haziran 2014
111 يتبع1.1K المتابعون
John Nevill
John Nevill@Seychellesharks·
Spangled emperors (Lethrinus nebulosus) - "kaptenn rouz" - English River market (06/02/26). SeyCCAT-funded project: Establishing a baseline for, and the species composition of, the Lethrinid fishery. #SeyCCAT #lethrinusnebulosus
John Nevill tweet media
English
0
0
2
19
John Nevill
John Nevill@Seychellesharks·
Two striking, richly-coloured specimens of the longface emperor (Lethrinus olivaceus) - "bek long" - English River (14/02/26). SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #lethrinusolivaceus
John Nevill tweet media
English
0
0
3
128
John Nevill
John Nevill@Seychellesharks·
Lethrinid trap catch, Roche Caiman (07/02/26). The Lethrinids are sorted and weighed to generate catch per trap day by family and species. SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #trapcatch
John Nevill tweet media
English
0
0
0
15
John Nevill
John Nevill@Seychellesharks·
Carcharhinus limbatus are aggregating for breeding around the islands now. This specimen weighed in at 109.5 kg. Northeast Mahe (18/02/26). SOSF-funded project: Monitoring the effectiveness of new shark protection laws in Seychelles. #saveourseasfoundation #ArtisanalFisheries
John Nevill tweet media
English
0
0
3
90
John Nevill
John Nevill@Seychellesharks·
Sky emperors (Lethrinus mahsena) - "madanm beri" - classified as endangered by IUCN, are a core component of the SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #trapcatch #lethrinusmahsena
John Nevill tweet media
English
0
0
0
37
John Nevill
John Nevill@Seychellesharks·
This male lemon shark (Negaprion acutidens) was not quite fully mature at 220cm TL and had the remains of a ray in its stomach, North Mahe (08/04/26). SOSF-funded project: Monitoring the effectiveness of new shark protection laws in Seychelles. #saveourseasfoundation
John Nevill tweet mediaJohn Nevill tweet media
English
0
0
4
96
John Nevill
John Nevill@Seychellesharks·
A beautiful morning for catch monitoring, English River, Mahe (09/04/26). #troisfreres
English
0
0
0
29
John Nevill
John Nevill@Seychellesharks·
My facebook account has been closed. I have no idea why and apparently no recourse. This means both my Environment Seychelles and Seychelles Seatizens pages are lost. If you follow either of those, I have not blocked you... the account has been closed by meta.
English
2
0
0
94
John Nevill
John Nevill@Seychellesharks·
@elonmusk The inspirational human being of our generation!
English
1
0
0
13
Elon Musk
Elon Musk@elonmusk·
Mass drivers on the Moon!
English
6.6K
12.2K
127.1K
75.5M
John Nevill
John Nevill@Seychellesharks·
The 15th species of lethrinid recorded in the catch by the project to date is the Thumbprint emperor (Lethrinus harak) - "anba lasann" - Roche Caiman (21/03/26). SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #trapcatch #lethrinusharak
John Nevill tweet media
English
0
0
3
174
John Nevill
John Nevill@Seychellesharks·
Today I recorded the 35,000th shark on the artisanal catch database. The four most common species account for 86.6% of the sharks caught, the ten most common species constitute 98.7%. This has allowed elucidation of species content, demography, seasonality and population trends.
John Nevill tweet media
English
0
0
2
49
John Nevill
John Nevill@Seychellesharks·
The 14th species of lethrinid recorded by the project to date is the Yellowlip emperor (Lethrinus xanthochilus) - "barwa" - English River market (14/02/26). SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #trapcatch #lethrinusxanthochilus
John Nevill tweet media
English
0
0
1
93
John Nevill
John Nevill@Seychellesharks·
5 weeks & 75 traps assessed for Lethrinids have shown 9 species with catch dominated by Sky emperor - "madanm beri" - follow to see how this changes through the year. SeyCCAT funded project: Establishing a baseline for the Lethrinid fishery. #SeyCCAT #trapcatch #lethrinusmahsena
John Nevill tweet media
English
0
0
5
219
John Nevill
John Nevill@Seychellesharks·
A fine specimen of the blue-lined large-eye bream (Gymnocranius grandoculis) -"kaptenn blan" - English River market (06/02/26). SeyCCAT-funded project #SeyCCAT
John Nevill tweet media
English
0
0
1
72
John Nevill
John Nevill@Seychellesharks·
Juvenile great hammerhead - "marto blan" - at Cascade (13/02/26). This species is a particular focus of this project, tissue sample taken. SOSF-funded project: Monitoring the effectiveness of new shark protection laws in Seychelles. #saveourseasfoundation #sphyrnamokarran
John Nevill tweet media
English
0
0
4
70