Instituto Portugues Do Mar E Atmosfera Ip

Lisbon, Portugal

Instituto Portugues Do Mar E Atmosfera Ip

Lisbon, Portugal
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Lamas L.,Instituto Hidrografico | Oliveira P.B.,Instituto Portugues Do Mar E Atmosfera Ip | Pinto J.P.,Instituto Hidrografico | Almeida S.,Instituto Hidrografico | And 3 more authors.
Aquatic Living Resources | Year: 2017

In this study, the relationships between sea surface temperature (SST), chlorophyll-a (Chl-a) concentration and catch locations of sardine (Sardina pilchardus) and Atlantic chub mackerel (Scomber colias) were explored using satellite-derived SST and Chl-a together with fishing activity data for the southern and southwestern Portuguese coasts for the period January 2014 to December 2015. Chl-a and SST conditions linked with high catches differed between sardine and chub mackerel. On the southwestern Portuguese coast, sardine catches were highest for SST ranging from 16 °C to 20 °C and Chl-a concentration below 4 mg m-3, while high chub mackerel catches were associated with a broader range of SST values (15-21 °C) and lower values of Chl-a (<2 mg m-3). On the south coast, both species had high catches for a broad range of SST conditions (14-22 °C for sardine and 12-24 °C for chub mackerel) and low Chl-a concentrations (<2.5 mg m-3 for sardine and <1.5 mg m-3 for chub mackerel). Daily presence-absence maps based on these intervals are part of the System for Integrated Monitoring of the Ocean platform. © EDP Sciences 2017.

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