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Oceans, Volume 5, Issue 4

December 2024 - 15 articles

Cover Story: The Berlengas archipelago, a UNESCO Biosphere Reserve, is a hotspot for fish and zooplankton biodiversity. The archipelago is an area strongly exposed to upwelling events, which modulate zooplanktonic communities, the base of the food trophic chain, and thus presents significant relevance in scientific assessment. Classic methods (morphologic taxonomy) combined with molecular techniques (bulk and eDNA metabarcoding) have been shown to be an effective holistic approach to characterise zooplanktonic communities and detect rare and/or non-native species. View this paper
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Articles (15)

  • Article
  • Open Access
2,895 Views
20 Pages

The Advantages of Combining Morphological and Molecular Methods to Characterise Zooplankton Communities: A Case Study of the UNESCO Biosphere Reserve of the Berlengas Archipelago, Portugal

  • Marco Simões,
  • Sónia Cotrim Marques,
  • Cátia Costa,
  • Maria da Luz Calado,
  • Jorge Lobo-Arteaga,
  • Cátia Bartilotti,
  • Maria Jorge Campos,
  • Sérgio Miguel Leandro and
  • Agostinho Antunes

26 October 2024

Understanding the ecological dynamics of zooplankton communities is crucial to precisely assessing the health of marine ecosystems and their management. Metabarcoding has contributed to a better understanding of biodiversity in marine environments. H...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,966 Views
20 Pages

Vertical Shear, Diapycnal Shear and the Gradient Richardson Number

  • Josep L. Pelegrí,
  • Mariona Claret and
  • Pablo Sangrà

17 October 2024

In Cartesian coordinates x,y,z, the gradient Richardson number Ri is the ratio between the square of the buoyancy frequency N and the square of the vertical shear S, Ri=N2/S2, where N2=−g/ρ ∂ρ/∂z and S2=∂u/∂z2+&...

  • Article
  • Open Access
3 Citations
5,034 Views
15 Pages

16 October 2024

Recent years have seen a notable rise in dolphin-watching boat activities along the Algarve coast in Portugal, potentially affecting the common dolphin (Delphinus delphis) and bottlenose dolphin (Tursiops truncatus) local populations. This study exam...

  • Article
  • Open Access
1 Citations
3,225 Views
12 Pages

The Effects of Elevated Temperatures on the Reproductive Biology of a Mediterranean Coral, Oculina patagonica

  • Tamar Shemesh,
  • Shani Levy,
  • Abigail Einbinder,
  • Itai Kolsky,
  • Jessica Bellworthy and
  • Tali Mass

9 October 2024

Global climate change is profoundly impacting coral ecosystems. Rising sea surface temperatures, in particular, disrupt coral reproductive synchrony, cause bleaching, and mortality. Oculina patagonica, a temperate scleractinian coral abundant across...

  • Article
  • Open Access
1 Citations
2,557 Views
16 Pages

1 October 2024

Wind-induced waves can lead to the partial or complete wash-over of beaches, causing erosion that impacts both the landscape and tourist infrastructure. In some regions of the world, e.g., Croatia, this process, which usually occurs during a harsh wi...

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Oceans - ISSN 2673-1924