Back to Search
Start Over
Two sympatric, not externally discernible, and heavily exploited deepwater species with coastal migration during spawning season: implications for sustainable stocks management of Aphanopus carbo and Aphanopus intermedius around Madeira
- Source :
- Canadian Journal of Fisheries and Aquatic Sciences. 77:124-131
- Publication Year :
- 2020
- Publisher :
- Canadian Science Publishing, 2020.
-
Abstract
- Several artisanal fisheries target deepwater species. These stocks are highly sensitive to overfishing because of their slow growth and late maturation. This vulnerability is higher if species concentrate during spawning season in coastal areas, as occur with scabbardfish (Aphanopus spp.). In this paper, we explore if two Aphanopus species (A. carbo and A. intermedius) that coexist show migration patterns to coastal areas during spawning. We analysed specimens of both species throughout 4 years (2014–2017) in a weekly basis and compare morphological parameters with the distance of the coast (coastal (12 n.m.)). Both species showed coastal patterns of migration during the spawning season (October–December), with 65.90% of total specimens of A. carbo and 51.60% of A. intermedius being caught at
- Subjects :
- 0106 biological sciences
Aphanopus
Overfishing
010604 marine biology & hydrobiology
04 agricultural and veterinary sciences
Aquatic Science
Biology
biology.organism_classification
01 natural sciences
Slow growth
Highly sensitive
Fishery
Sympatric speciation
040102 fisheries
0401 agriculture, forestry, and fisheries
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 12057533 and 0706652X
- Volume :
- 77
- Database :
- OpenAIRE
- Journal :
- Canadian Journal of Fisheries and Aquatic Sciences
- Accession number :
- edsair.doi...........f93f7d2519930cb13c0c547fe33fc572