Monthly Grouper Gonad and Stomach pictures taken from September 2018 to April 2022
Data and Resources
Additional Info
| Field | Value |
|---|---|
| Last Updated | October 23, 2023, 16:11 (CEST) |
| Created | October 23, 2023, 16:10 (CEST) |
| Region | Saint Helena |
| Language | eng |
| Topic Category | Biota; flora and/or fauna in natural environment |
| Temporal Extent Start | 2018 |
| Temporal Extent End | 2022 |
| Dataset Reference Date | 01/04/2022 |
| Lineage | The gonads were extracted by cutting open the stomach cavity of the fish from the anus towards the head. The gonads were carefully collected using forceps and scissors, and any excess materials are cut away. Gonads are weighed with a 0.01 gram accuracy for a gonadosomatic index (GSI) and photographed with an Olympus digital 12 megapixel camera on a white background, next to a ruler of 1mm accuracy. Once weight and length are measured, a cross-section is made to determine the maturity stage of the gonads. A five stage maturity scale is used for determining maturity. File names represent trip ID and fish ID to link picture to individually sampled fish. |
| Spatial Reference System | EPSG:4326 |
| Responsible Organisation Name | Hidden (personal data protection) |
| Contact Mail Address | Hidden (personal data protection) |
| Responsible Party Role | Hidden (personal data protection) |
| Access Limitations | Open access |
| Use Constraints | Open |
| Resource Reference | Open but Please acknowledge data source as: St Helena Government, Environmental Managament Division, Marine Conservation Section. Oceanographic influences on the St Helena pelagic ecosystem. A Darwin PLUS Initiative project funded by the UK government. |
| Data Format | Jpeg |
| Update Frequency | not planned - survey completed |
| Accuracy | Taken on a Olympus digital 12 megapixel camera, weighed with a 0.01 gram accuracy |
| Resource Type | data series |
| Original Title | Hidden (internal use only) |
| Metadata Date | 2022/10/10 |
| Metadata Point of Contact | data.manager@sainthelena.gov.sh |
| Unique Resource ID | SH-SHG-357 |