Alien species in the Guadiana Estuary (SE-Portugal/SW-Spain): Blackfordia virginica (Cnidaria, Hydrozoa) and Palaemon macrodactylus (Crustacea, Decapoda): potential impacts and mitigation measures

Chı́charo, Maria Alexandra; Leitão, Tânia; Range, Pedro; Gutiérrez, Cristina; Morales, Jesus; Morais, Pedro; Chı́charo, Luis

doi:10.3391/ai.2009.4.3.11

Cited by 64 publications

(24 citation statements)

References 18 publications

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“…After successive introductions, presumably due to marine traffic, the oriental shrimp Palaemon macrodactylus (Rathbun 1902), native of coastal areas in Japan, Korea, and northern China (Newman 1963), has successfully invaded Pacific and Atlantic coasts of the United States, Europe, and Australia (Newman 1963;Jensen 1995;Ashelby et al 2004;Cuesta et al 2004; Chicharo et al 2009;Micu and Niţȃ 2009;Raykov et al 2010;Lavesque et al 2010;Warkentine and Rachlin 2010;Soors et al 2010). Although it is commonly associated with brackish water estuarine areas (Béguer et al 2011), the first record of the species in the southwestern Atlantic was from Mar del Plata harbor, Buenos Aires Province, Argentina (Spivak et al 2006), where fully marine conditions prevail.…”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in reproductive traits of the oriental shrimp Palaemon macrodactylus (Crustacea: Caridea: Palaemonidae) in a non-native population

2013

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The magnitude of variations in reproductive traits of Palaemon macrodactylus females throughout a breeding season was studied in a non-native population at Mar del Plata harbor, Argentina. Fecundity, egg size, reproductive output, weight and elemental composition of eggs, and larvae were analyzed in females collected at the beginning, in the mid point, and near the end of a reproductive season and designated as early, middle season, and late females. The highest reproductive output was observed in early females, while the highest fecundity and egg volume occurred in middle season females. Eggs and larvae showed larger body mass in early than in late females. Embryos from early females contained and consumed more carbon during development than embryos from late females, and they also used part of the available nitrogen. Differences in reproduction were observed among the three groups of females. On the one hand, late females matured early but had a poor first reproduction, with few embryos and high egg loss; however, they had longer reproductive life and an enhanced reproductive output in the following season when they became early females. On the other hand, females collected at the midpoint in the reproductive season matured later and had the highest fecundity and egg volume. In addition, larvae with different characteristics resulted from each type of female and were presumably well adapted to the conditions prevailing at the moment they hatched. The extended reproductive period and the diversity of embryos and larvae produced may favor the invading ability of the species.

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Section: Introductionmentioning

confidence: 99%

Seasonal variation in reproductive traits of the oriental shrimp Palaemon macrodactylus (Crustacea: Caridea: Palaemonidae) in a non-native population

2013

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“…In addition, the port of Cádiz, located some 25 km from Chipiona, features four commercial docks plus a shipyard that repairs ships from all over the world. To support this theory on the introduction of weakfish, some marine organisms are believed to have been introduced through ship ballast water in the Gulf of Cádiz (Cuesta et al 2004, Chicharo et al 2009) and the occurrence of the other European alien sciaenid M. undulatus, reported in Belgian waters, is likely to be due to transportation in ship ballast water (Stevens et al 2004) as well.…”

Section: Discussionmentioning

confidence: 99%

“…There is an important artisanal fishery and shellfishing sector in the area, with a fleet composed of about 1000 vessels that capture more than 50 commercial species (Silva et al 2002), although current official data reduce the number of vessels by nearly half. Human impacts on this marine ecosystem through exploitation of marine resources, fishing and the invasion of non-indigenous species have also been reported (Chicharo et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Identification of a non-native <em>Cynoscion</em> species (Perciformes: Sciaenidae) from the Gulf of Cádiz (southwestern Spain) and data on its current status

Bañón

Arias

Arana³

et al. 2017

Sci. Mar.

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Summary:Cynoscion is a genus of fish in the family Sciaenidae from the Atlantic and Pacific American coasts that is important in recreational and commercial fisheries. Morphological analysis identifies a species inhabiting the Gulf of Cádiz (southern Spain) as the weakfish, Cynoscion regalis, a native of the northwest Atlantic. This finding is also confirmed by molecular identification using 16S and Cox1genes. Based on the examination of a previous manuscript, the assignation of this species to the spotted seatrout, Cynoscion nebulosus, is considered a misidentification. C. regalis has been reported in the area since 2011 and is now considered an established species that is distributed along the Guadalquivir River estuary and is a target of local artisanal fisheries. The pathway of introduction is unknown, but possible mechanisms are considered, of which ballast water seems to be the most plausible. A revision of non-native sciaenids also found in European waters is carried out. The ecological impact of weakfish on the local fish community is still unknown and should be object of future studies.Keywords: biological invasion; marine introduction; weakfish; Cynoscion regalis; Guadalquivir estuary; taxonomy.Identificación de una especie no nativa de Cynoscion (Perciformes: Sciaenidae) en el Golfo de Cádiz (suroeste de España) y datos sobre su estado actual Resumen: Cynoscion es un género de peces de la familia Sciaenidae, de importancia en la pesca deportiva y comercial, que habita las costas americanas del Atlántico y el Pacífico. Una especie que habita en el Golfo de Cádiz (suroeste de España) fue identificada mediante análisis morfológico como corvinata real Cynoscion regalis, nativa del Atlántico Noroeste. La identificación también fue confirmada por análisis molecular, utilizando los genes 16S y Cox1. Basándose en el examen de una publicación anterior, la asignación de esta especie a corvinata pintada Cynoscion nebulosus se considera un error de identificación. Existen registros de C. regalis en esta zona desde 2011 y ahora se considera una especie establecida, distribuida a lo largo del estuario del río Guadalquivir y objeto de la pesca artesanal local. La vía de introducción es desconocida, pero se consideran los posibles mecanismos de introducción, de los cuales el agua de lastre parece ser el más probable. Se realizó una revisión de los esciaénidos no nativos en aguas europeas. Aún se desconoce el impacto ecológico de la corvinata real en la comunidad local de peces, que debe ser objeto de futuros estudios.Palabras clave: invasión biológica; introducción de especies marinas; corvinata real; Cynoscion regalis; estuario del Guadalquivir; taxonomía.

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“…In the Guadiana estuary, a community shift has been already documented, including plankton and fish [9,11,12]. In addition, first occurrences of several marine invasive species have also been recorded, with potentially detrimental effects on native biota [13]. In 2008, the invasive species Blackfordia virginica (cnidarian) and Palaemon macrodactylus (caridean shrimp) were first observed within the Guadiana estuary [13].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, first occurrences of several marine invasive species have also been recorded, with potentially detrimental effects on native biota [13]. In 2008, the invasive species Blackfordia virginica (cnidarian) and Palaemon macrodactylus (caridean shrimp) were first observed within the Guadiana estuary [13]. For both species, there is the potential competition for space and resources with native species such as Sardina pilchardus, Engraulis encrasicolus, Pomatoschistus sp., Solea sp., Diplodus sp., Syngnathus sp..…”

Section: Introductionmentioning

confidence: 99%

Is <em>Fundulus heteroclitus</em> Intrusion Depleting Winter Marsh Pools of Native Fish Species?

Gonçalves¹,

Cruz²,

Ben-Hamadou³

et al. 2017

Preprint

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This work updates the characterization of winter fish communities in salt marsh areas of Guadiana estuary (SE-Portugal) and discusses the potential risks of habitat dominance by a nonindigenous species (NIS). To this effect, six field campaigns were carried out during winter season targeting the collection of fish species. Individuals from seven different families (marine and estuarine) were collected although the community was dominated by two estuarine species -the native Pomatoschistus sp. (goby) and the NIS Fundulus heteroclitus (mummichog). Goby controlled the majority of salt marsh habitats, except one specific, marsh pool, where extreme environmental conditions were registered, namely high temperature and salinity. Such conditions may have boosted the intrusion of mummichog in this area. This species is well adapted to a wide range of abiotic factors enabling them to colonize habitats where no predators inhabit. Impacts of mummichog intrusion in the Guadiana salt marsh area are still unpredictable since this is the first recorded in such high density. Nevertheless, in scenarios of increased anthropogenic pressure and, consequently, habitat degradation, there is a potential risk of mummichog spread to other habitats and therefore compete for space and food resources with native species.

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Alien species in the Guadiana Estuary (SE-Portugal/SW-Spain): Blackfordia virginica (Cnidaria, Hydrozoa) and Palaemon macrodactylus (Crustacea, Decapoda): potential impacts and mitigation measures

Abstract: The kelp Undaria pinnatifida (Harvey) Suringar (Laminariales, Phaeophyceae), a native of Japan, northern China, and Korea, is

Cited by 64 publications

References 18 publications

Seasonal variation in reproductive traits of the oriental shrimp Palaemon macrodactylus (Crustacea: Caridea: Palaemonidae) in a non-native population

Seasonal variation in reproductive traits of the oriental shrimp Palaemon macrodactylus (Crustacea: Caridea: Palaemonidae) in a non-native population

Identification of a non-native <em>Cynoscion</em> species (Perciformes: Sciaenidae) from the Gulf of Cádiz (southwestern Spain) and data on its current status

Is <em>Fundulus heteroclitus</em> Intrusion Depleting Winter Marsh Pools of Native Fish Species?

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