Seasonal variation of peracarid assemblages in natural and artificial marine environments of the Southwestern Atlantic Ocean

Rumbold, Carlos; Obenat, Sandra; Velazquez, Samira Nuñez; Gancedo, Brian J; Spivak, Eduardo D.

doi:10.1007/s12526-017-0663-x

Cited by 9 publications

(5 citation statements)

References 56 publications

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“…Abundances of both species in the port follow a seasonal pattern, characterized by peaks in the summer and early autumn, and low values throughout the cold season. This pattern most probably reflects the effect of the temperature, which is the primary factor modulating the populations of other well established NIS and cryptogenic species in Mar del Plata port, such as the amphipods Monocorophium acherusicum (Costa, 1853) and Ericthonius brasiliesis (Dana, 1853), the isopod S. serratum and the tanaidacean Tanais dulongii (Audouin, 1826) (Kittlein, 1991;Rumbold et al, 2015bRumbold et al, , 2016Rumbold et al, , 2017. Given that hull surveys were conducted during the winter, higher abundances of D. edwardsi and P. sculpta than observed here should be expected during warm months.…”

Section: Discussionmentioning

confidence: 97%

“…The information available suggests that both species are recent additions to the benthic fauna of the Southwestern Atlantic. The benthic ecosystems of Mar del Plata, where the two species have been found, have been extensively studied and their invertebrate community is well known compared to other areas (Orensanz et al, 2002;Rumbold et al, 2017). Particularly, isopod populations have been repeatedly surveyed since the detection of the nonindigenous isopod Sphaeroma serratum in this port in 1964 (Bastida, 1968;Roux and Bastida, 1990).…”

Section: Discussionmentioning

confidence: 99%

“…Despite these conditions, artificial structures (e.g. ship hulls, breakwaters, wooden docks and marinas) host a rich fouling community composed by ascidians, algae, and polychaete tubes that provide refuge for fishes, flatworms, mollusks, nematodes and crustaceans (Rivero et al, 2005;Albano et al, 2013;Rumbold et al, 2017).…”

Section: Study Areamentioning

confidence: 99%

“…In Argentina, Mar del Plata port is one of the most studied marine environments (Orensanz et al, 2002). Its important national and international marine traffic has favored the entrance of several invasive species, mainly amphipods and isopods, to this port (Roux and Bastida, 1990;Rumbold et al, 2015aRumbold et al, , 2017. While these organisms likely introduce substantial changes to native ecosystems, detailed information on the biology, density, introduction vectors and even the identity of many of these invaders is missing.…”

Section: Introductionmentioning

confidence: 99%

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Two new nonindigenous isopods in the Southwestern Atlantic: Simultaneous assessment of population status and shipping transport vector

Rumbold

Meloni

Doti

et al. 2018

Journal of Sea Research

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The Southwestern Atlantic is often perceived as remote region, yet it is not immune to biological invasions. Patchy information on historical community composition hinders our ability to identify introductions to coastal ecosystems in this region. Hull fouling is an under-managed shipping vector that likely continues to transport large numbers of marine species worldwide. The port of Mar del Plata is a comparatively well-studied shipping and commercial hub that may serve as an observatory to monitor new introductions to the Argentine coast. Following detection of nonindigenous isopods during preliminary port sampling in 2007-2008, we organized regular port surveys aimed at assessing the level of population establishment and evaluated hull fouling as a potential introduction vector in the Port of Mar del Plata. In 2011-2012, we conducted 12 monthly dive surveys of port isopod communities in combination with three opportunistic surveys (two in-water, one in dry-dock) of hull fouling communities attached to a domestic research vessel during consecutive port calls at its base in this port. Replicate biofouling samples from underwater dock structures and the vessel's hull were collected by scraping invertebrates in 20 × 20 cm quadrats (even surfaces) and 1000 cm 3 of biofouling organisms (uneven surfaces). Both in port-and hull-fouling communities, we discovered the presence of the nonindigenous isopods Dynamene edwardsi and Paracerceis sculpta. This report constitutes the first detection of these two global marine invaders in American and Argentine waters, respectively. They likely represent relatively recent introductions to this corner of the world's oceans, yet our data indicate that both species are currently well established in Mar del Plata. These results demonstrate (for the first time in the case of D. edwardsi) the potential for hull fouling to disperse both species, and raise a warning on their potential expansion to other Southwestern Atlantic ports and Antarctica in a near future. Research on the marine communities of the Southwestern Atlantic is pressingly needed to establish pre-invasion communities and detect new introductions. Simultaneous surveillance of ports (invasion hubs) and vessels (vectors) can effectively detect invaders and inform prevention efforts in this region.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Two new nonindigenous isopods in the Southwestern Atlantic: Simultaneous assessment of population status and shipping transport vector

Rumbold

Meloni

Doti

et al. 2018

Journal of Sea Research

Self Cite

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“…Anthropogenic activities, such as port or industrial activities, or natural phenomena such as rock erosion, leaching or volcanic emissions, can release large amounts of metals into the marine environment. Most of the metals tend to accumulate in the bottoms, forming part of the sediments or remaining in suspension [ 12 , 13 , 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

Lozano-Bilbao

Delgado-Suárez

Paz-Montelongo

et al. 2023

Foods

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Bioaccumulation is the process by which living organisms accumulate substances, such as pesticides, heavy metals, and other pollutants, from their environment. These substances can accumulate in the organism’s tissues over time, leading to potential health risks. Bioaccumulation can occur in both aquatic and terrestrial ecosystems, and can have a significant impact on the health of both humans and wildlife. The objective of this study is to find out if the concentrations of metals in the tuna species of the Canary Islands are suitable for human consumption and if they pose a health risk. Fifteen samples of Acanthocybium solandri, Katsuwonus pelamis, Thunnus albacares, Thunnus obesus and Thunnus thynnus present in canaries were analyzed. Ten grams of muscle were taken from each specimen and the metals Al, Cd, Cr, Cu, Fe, Li, Ni, Pb and Zn were determined by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The tuna species that presented more metals with a higher concentration compared to the others was T. thynnus, reaching up to 100 times more than the other studied species in Fe content with 137.8 ± 100.9 mg/Kg, which may be due to the fact that it is the largest species that reaches ages of more than fifteen years. The species Thunnus thynnus should not be suitable for commercialization according to the current legislation on the concentrations of Cd in blue fish, since 75% of the specimens studied exceeded the concentration legislated for Cd. A total of 40% of the studied specimens of this this species exceeded the legislated values for the concentration of Pb in oily fish meat, so this species must be monitored to ensure that it does not pose a risk to human health.

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Invasive coral Tubastraea spp. population growth in artificial habitats and its consequences to the diversity of benthic organisms

2020

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Seasonal variation of peracarid assemblages in natural and artificial marine environments of the Southwestern Atlantic Ocean

Cited by 9 publications

References 56 publications

Two new nonindigenous isopods in the Southwestern Atlantic: Simultaneous assessment of population status and shipping transport vector

Two new nonindigenous isopods in the Southwestern Atlantic: Simultaneous assessment of population status and shipping transport vector

Risk Assessment and Characterization in Tuna Species of the Canary Islands According to Their Metal Content

Invasive coral Tubastraea spp. population growth in artificial habitats and its consequences to the diversity of benthic organisms

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