The ever-accelerating process of introduction and establishment invasive alien species (IAS) in marine waters requires engaging different actors the management planning. To address this challenge, stakeholders need an integrated approach for defining actions control within ecosystem-based framework: to seek enhance coordination, collaboration trust among all affected by changes linked social - ecological systems. This study explores complexities opportunities managing economically valuable...

Climate change may enhance the establishment of introduced species, as well poleward shift in distribution numerous species over decades. Long-term research and monitoring an ecosystem at southernmost point Atlantic coast Europe should be important priority order to detect understand trends composition related environmental changes. The Guadalquivir estuary (South West Spain) is more likely suffer exacerbated effects climate due its location Mediterranean-climate zone. long-term data set...

This study provides a comprehensive analysis of the eco-physiological responses blue crab (Callinectes sapidus) to variations in salinity, shedding light on its adaptability and invasive success aquatic environments. Gender-specific differences osmoregulation Electron Transport System (ETS) activity highlight importance considering sex-specific aspects when understanding physiological species. Females exhibited increased ETS at lower salinities, potentially indicative metabolic stress, while...

The variability in trophic position and carbon isotopic signatures can provide information about their dietary flexibility its ability to adapt changing environmental conditions. impact of the invasive blue crab Callinectes sapidus was assessed by estimating niche using stable isotopes (δ

The marine ecosystems of Todos os Santos Bay (TSB, State Bahia, Brazil) have been impacted by the presence on its coast a large metropolitan area as well chemical and petrochemical activities.Despite ecological importance, there is lack scientific information concerning metal contamination in TSB biota.Thus, we analyzed concentrations metals four species benthic organisms (two seaweeds, Padina gymnospora Sargassum sp.one seagrass, Halodule wrightii one oyster, Crassostrea rhizophorae) three...

Seafood is an essential source of protein globally. As its demand continues to rise, balancing food security and the health marine ecosystems has become a pressing challenge. Ecosystem-based fisheries management (EBFM) been adopted by European Union (EU) Common Fisheries Policy (CFP) meet this challenge accounting for multiple interacting natural socio-economic drivers. The CFP includes both implementation regulatory measures EU stocks establishment bilateral agreements with neighbouring...

Two specimens of the deep–sea fish Tetragonurus cuvieri Risso, 1810 and Notacanthus bonaparte 1840 were captured in Gulf Cadiz on January 2023 at a depth 14.15 m March 532 m, respectively. The identity was verified using both morphological genetic criteria. In this study, we compile information global occurrences these two deep–see species, they are uncommonly observed shallow waters Iberian Peninsula. It highlights importance conducting further research to understand full range species...

A new invasive snapping shrimp from the Alpheus lobidens De Haan, 1849 species complex has become one of most frequently observed crustaceans in certain saltmarshes along southwestern Spanish coast. The first place Europe where this invasion occurred is reported study; however, little known about species, even within its undetermined native range. Here, population structure, density, sex ratio, sexual dimorphism, reproductive period, and relative growth nonnative are for an intertidal...

The Atlantic croaker Micropogonias undulatus , a sciaenid fish native to the North American coast, holds importance in recreational and commercial fisheries. Moreover, its potential as an invasive species should be noted, given expansion establishment European waters. This study reports southernmost occurrence Europe, Gulf of Cadiz. Morphological molecular analysis confirmed identity, revealing genetic similarities US sequences. A comprehensive review historical non-native distribution...

Abstract In 2015, an unknown snapping shrimp of the genus Alpheus was collected in San Pedro River inlet (Bay Cadiz, SW Spain). Initially, its identification not possible only based on DNA barcoding or morphology, considering difficulties taxonomy and low percentage sequences spp. available public databases. However, recent studies from Kuwait, Qatar Iraq describing morphology cf. lobidens allowed us to place exotic this species complex. There are also 16S mtRNA COI deposited GenBank BOLD...

The introduction of non-indigenous species to aquatic ecosystems is one the main threats global biodiversity.This paper reports occurrence blue swimmer crab Portunus segnis in southwestern European waters (i.e., Gulf Cadiz).We discuss invasive potential P. and possible mechanisms its expansion into this new region.The detection also highlights importance involving citizen scientists reporting species.

Abstract This paper reports the first record of a rare deep-sea fish Ijimaia loppei Roule, 1922 (Ateleopodiformes: Ateleopodidae) in Southwest Iberian Peninsula, based on single specimen (total length 1271 mm) bottom trawled mud volcano field Gulf Cadiz, Spain (36º 28′ 54'' N, 7º 07′ 47'' W), at depth 585 m, April 24, 2024. The morphometric and meristic measurements I. its congener, antillarum , are presented compared to previously published data. Further, this study provides insights into...

Coastal environments, such as bays, are essential to the development of fishery resources due their economic and ecological importance. This paper presents an updated checklist coastal marine fishes part a long-term monitoring program in Aratu Bay (2014–2024), Bahia state, eastern Brazil. A total 109 species belonging 58 families 24 orders were cataloged. Five endemic ten listed at risk according IUCN criteria (from Vulnerable onwards) identified. The Carangidae was most representative...

The oculate apple murex, Phyllonotus oculatus, feeding on the carcass of reef octopus Octopus insularis (a, b) and green moray Gymnothorax funebris (c, d).Other scavenger species observed: gastropods Fissurella sp; (f below, left) Neritina virginea above, right) (e, f), arrow crab Stenorhynchus seticornis (g).Scale bar = 5 cm