Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [393090] |
Horizontal and vertical movements of the critically endangered Rostroraja alba in a coastal marine protected area
Kraft, S.; Winkler, A.C.; Abecasis, D. (2024). Horizontal and vertical movements of the critically endangered Rostroraja alba in a coastal marine protected area. Aquat. Conserv. 34(6): e4204. https://dx.doi.org/10.1002/aqc.4204
In: Aquatic Conservation: Marine and Freshwater Ecosystems. Wiley: Chichester; New York . ISSN 1052-7613; e-ISSN 1099-0755, meer
|  |
| Trefwoorden |
Conservation
Management
Rajidae de Blainville, 1816 [WoRMS]
Marien/Kust |
| Author keywords |
nursery area, passive acoustic telemetry, White skate |
| Auteurs | | Top |
- Kraft, S.
- Winkler, A.C.
- Abecasis, D., meer
|
|
|
| Abstract |
- Elasmobranchs are slow-growing marine predators whose populations have declined due to their susceptibility to overfishing, especially affecting species of large size. Rostroraja alba is a large skate that is currently classified as critically endangered.
- To address the effects of overfishing and promote the recovery of marine species and habitats, marine protected areas (MPAs) are a commonly implemented management strategy. A critical aspect of their success is using information on species' movement patterns; however, this is frequently not assessed for elasmobranchs.
- In this study, acoustic telemetry was used to monitor 30 R. alba in the Professor Luís Saldanha Marine Park (Portugal) to assess their long-term movements in the context of a coastal MPA and to evaluate the contribution of this kind of spatial management to the conservation of this species.
- Immature individuals were more frequently captured than adults, which postulates this area as a potential nursery. The average residency was moderate and relatively consistent throughout the year, as was area use. No marked size or sex-based differences in movement were noted. Individuals were more active and occurred in shallower waters at night and twilight, and occasional quick vertical movements into the water column, isolated or in sequence, were also noted.
- In general, the LSMP seems to offer stable protection to immature R. alba, with no strong seasonal variation. These results provide relevant input for adaptive management measures of this and other similar MPAs and highlight the contribution of these efforts to the protection of nursery areas.
|
IMIS is ontwikkeld en wordt gehost door het VLIZ.
