Figure - available via license: Creative Commons Attribution-NonCommercial 4.0 International
Content may be subject to copyright.
Decapods species richness on northern and southern MAR, determined by pelagic and demersal sampling.
Source publication
The Mid Atlantic Ridge (MAR) is a seamount chain extending for 60.000 km, divided into south and north regions by the Equatorial Fracture which cuts across it. This latter has a maximum depth of 7,760 m and an average width of 19 km. In this study we include data from the two cruises of the international project MAR-ECO, undertaken, respectively, o...
Contexts in source publication
Context 1
... species richness (Chao-2 estimator) in the pelagic trawls on the northern MAR is 53 (mean of 1,000 resampling runs, 95% C.I. 51 - 68; Figure 7, Table 2), which is very close to the observed number of species (50). Neither the estimated total species richness in pelagic trawls on the southern MAR, nor the demersal trawls in either region reached an asymptote (Fig. 6) and they demonstrated a wide 95% CI ( Table 2), suggesting that the estimates of total community diversity would likely be higher with greater sampling (Fig. 7). ...Context 2
... species richness (Chao-2 estimator) in the pelagic trawls on the northern MAR is 53 (mean of 1,000 resampling runs, 95% C.I. 51 - 68; Figure 7, Table 2), which is very close to the observed number of species (50). Neither the estimated total species richness in pelagic trawls on the southern MAR, nor the demersal trawls in either region reached an asymptote (Fig. 6) and they demonstrated a wide 95% CI ( Table 2), suggesting that the estimates of total community diversity would likely be higher with greater sampling (Fig. 7). Summing up the estimates for both the pelagic and demersal trawls within each region, we arrived at a greater total Chao-2 estimate of diversity than with the total data set, reflecting an overlap in pelagic and demersal species associations (Table 2). ...Context 3
... the estimated total species richness in pelagic trawls on the southern MAR, nor the demersal trawls in either region reached an asymptote (Fig. 6) and they demonstrated a wide 95% CI ( Table 2), suggesting that the estimates of total community diversity would likely be higher with greater sampling (Fig. 7). Summing up the estimates for both the pelagic and demersal trawls within each region, we arrived at a greater total Chao-2 estimate of diversity than with the total data set, reflecting an overlap in pelagic and demersal species associations (Table 2). ...Similar publications
We present a case study in which we assessed the effects of a severe soil perturbation on the plant community and soil variables in young hybrid poplar (Populus sp.) plantations of southern Québec (Canada). Our overall goal was to test if soil perturbation and planting fast-growing species could promote the reestablishment of a relatively diverse p...
Geographic distribution is critical information for conservation of the species. In this note we report the southernmost record of Akodon serrensis, a Neotropical terrestrial rodent endemic of the Brazilian Atlantic Forest, but yet with undefined distribution limits. Two specimens surveyed in Rio Grande do Sul state were identified as A. serrensis,...
In 2010, the Southern Institute of Social Sciences of the Vietnam Academy of Social
Sciences conducted two surveys in the Southeast region of Viet Nam. The first survey
was conducted in Ho Chi Minh City. It consists of 1,080 households living in 30
wards or communes. The second one was carried out in other provinces of the
Southeast region, con...
Citations
... The key feature separating the two basins is the Romanche FZ on the MAR. While this may act as a biogeographical barrier for some taxa (e.g., Cardoso et al. 2014), the Romanche FZ facilitates water circulation in the Central Atlantic and therefore may also play a key role in structuring deep North and South Atlantic communities as well as characterising dispersal patterns and connectivity (German et al. 2011, van der Heijden et al. 2012. The eastern and western Atlantic also appear somewhat connected, with several taxa shared across regions (Olu et al. 2010, Krylova & Sahling 2010, Teixeira et al. 2013. ...
... The coordinates of previous records from the coast of São Paulo refers to Sergia robustus and are 24°16'S/44°00'W, which is close to Ubatuba (D'Incao 1995a). This species was first described as Sergestes robustus (Smith, 1882), and reclassified as Sergia robusta afterward (Vereshchaka 2000;De Grave & Fransen 2011 We did not collect this species, since it is known to occur at depths of 200 and 5,000 m (D'Incao 1995a), predominantly between 600 and 1,000 m (Timm et al. 2020); they are sampled with demersal and pelagic trawls (Cardoso et al. 2014). We did not reach such depths or use such collecting gear. ...
... Western Atlantic-Canada (New Scotia), Bermuda, USA (Massachusetts), Gulf of Mexico, Caribbean Sea, Suriname, French Guiana, Brazil (São Pedro and São Paulo Archipelago, São Paulo, rio Grande do Sul), and Uruguay. Eastern Atlantic-Norway, Denmark, Faroe Islands, Scotland, Ireland, Azores, Canary Islands, Cape Verde Islands, Madeira Islands, Mediterranean Sea, Greece, Congo, Angola, and South Africa(Holthuis 1952b;D'Incao 1995a; Pérez Farfante & kinsley 1997;Vereshchaka 2000;Cardoso et al. 2014;Judkins 2014;Araújo & Wirtz 2015;kondylatos et al. 2020;Timm et al. 2020). ...
This checklist is the fifth and last compilation on the decapod crustaceans reported to São Paulo (Brazil) coastal area, resulting from long-term multidisciplinary projects, which combined morphological analyses and molecular techniques. The current research includes 75 decapod species, herein referred as shrimps/lobsters-like (shrimps, ghost-shrimps, lobsters, and related groups), reported to São Paulo coastal area. These species occur in marine, estuarine, and amphidromous habitats and are classified into 21 families as follow: Aristeidae (2 spp., 2 genera), Atyidae (4 spp., 2 genera), Axianassidae (1 sp., 1 genus), Callianassidae (1 sp., 1 genus), Callichiridae (6 spp., 4 genera), Crangonidae (1 sp., 1 genus), Glyphocrangonidae (1 sp., 1 genus), Luciferidae (2 spp., 2 genera), Nephropidae (4 spp., 2 genera), Palaemonidae (15 spp., 9 genera), Palinuridae (2 spp., 1 genus), Pandalidae (1 sp., 1 genus), Pasiphaeidae (1 sp., 1 genus), Penaeidae (10 spp., 6 genera), Sergestidae (3 spp., 3 genera), Sicyoniidae (4 spp., 1 genus), Scyllaridae (5 spp., 3 genera), Solenoceridae (4 spp., 3 genera), Stenopodidae (2 spp., 1 genus), and Upogebiidae (6 spp., 1 genus). We generated new sequences of cytochrome oxidase subunit I (barcode region) and 16S genes (51 and 54, respectively) of 54 species. Our examination concluded that 75 shrimps/lobsters-like species are reported to the São Paulo coast. We excluded Leander tenuicornis (Palaemonidae), Penaeus setiferus (Penaeidae), Philocheras gorei (Crangonidae), and Rhynchocinetes typus (Rhynchocinetidae) from this list.
... This number is relatively similar to those observed in other Seamounts habitats. In the south and the north mid-Atlantic ridge, 34 and 47 species of pelagic shrimps have been reported, respectively (Cardoso et al. 2014). Our results seem to coincide with the observations of Letessier et al. (2017) who refer to the Seamounts environment as "oasis" in the middle of the Southeast Paci c. ...
Updated information on pelagic shrimps collected in the southeast Pacific is provided. The study is based on recent expeditions during the last decade off the Chilean coast and on the material of the 1962 Eltanin expedition to Peru and Chile (cruises 3–5). This material was deposited in the Museum Support Center of the Smithsonian Institution but have so far not been studied. The study area was from 07°S to 62°S, from Punta Chicama, Peru, to Drake Passage, and from the continental slope of southeast of South America to Chilean Island (Desventuradas Islands, Easter Island and Juan Fernandez Archipelago). Samples were taken from the epipelagic to the bathypelagic zones. The information obtained is compared with a previous review published by G. Guzman in 2008. A total of 78 species were registered, and the differences with the 79 species reported earlier are discussed. It is concluded that some of the inconsistencies between both values correspond to species that were collected only once due to their low abundance and characterized as rare species, probably due to sampling methods. This is the case of Glyphus marsupialis, collected only once off Peru. Biogeographical connections between the shrimp fauna of the study area and other zones of the Pacific Ocean are discussed. Two distributional patterns were observed, one related with the circum-Antarctic waters and another related with the West Pacific. Despite these recent efforts, the pelagic fauna occurring in large zones of the Southeast Pacific remains unknown. Surveys in the area have been episodic, thus impeding the possibility to establish accurate biogeographical patterns and relationships with other regions and to increase our knowledge on the biology of the shrimp pelagic fauna.
... (Fig. 4) Western Atlantic: Brazil (Ceará and Rio Grande do Norte -First report from southwestern Atlantic). Eastern Atlantic: Mid Atlantic Ridge, Portugal (Madeira Island), West Sahara, Morocco, Mauritanian, Senegal, Gabon, Bissau?Guinea, Guinea, Namibia (Crosnier & Forest 1969;1973;Cardoso et al. 2014). ...
... The specimens collected in this study indicated a wide bathymetric distribution of species, being collected between isobaths from 400 m to 2000 m along the continental slope. The species of H. chacei has a disjunct distribution, reported only from eastern Atlantic (Crosnier & Forest 1969;1973) and from the Mid Atlantic Ridge reported by Cardoso et al. (2014), thus, this paper report the first occurrence of species from the southwestern Atlantic (Brazilian waters), filling gap along the Atlantic Ocean. ...
... Geographic distribution. (Fig. 6 Burkenroad 1936;Pérez-Farfante 1977;Crosnier & Forest 1973;Cardoso et al. 2014). ...
This paper reports the occurrence of four deep waters shrimps of the family Solenoceridae in the southwestern Atlantic, Brazil. The rare Hadropenaeus modestus is collected for the second time from Brazilian waters after 138 years, filling the gaps on its distributional pattern. Mesopenaeus tropicalis is a new register for Potiguar basin, although it is common along Brazilian coast. Hymenopenaeus chacei and H. laevis are recorded for the first time in southwestern Atlantic. The records of these species in the southwestern Atlantic are an important advancement to raise the knowledge of the deep-sea shrimps.
... These larvae, when linked to their adult forms (Plesiopenaeus armatus), present a considerably expanded geographic distribution (Bracken-Grissom et al. 2012). This species presents a characteristic ontogenetic vertical migration: early larval stages are recorded in surface waters, while more advanced larval stages and adults are found in the deep sea (752-5413 m) (Pérez Farfante & Kensley, 1997;Dall, 2001;Tavares & Serejo, 2007;Fransen 2010;Cardoso et al. 2014). Due to its wide vertical distribution in the water column and the occurrence of P. armatus in all oceans, it can be concluded that these larvae probably occur across the whole tropical Atlantic, since it probably lives on the continental slope and deep sea in tropical, subtropical and (rarely) temperate waters worldwide (Tavares & Serejo 2007, Bracken-Grissom et al. 2012. ...
The current biogeographic and taxonomic knowledge on decapod larvae in tropical oceans is still very incomplete, in spite
of their huge ecological and socio-economic importance. The present study reports two new records for decapod larval
forms in pelagic environments off oceanic islands in the western tropical Atlantic, and provides detailed diagnoses and
images of these larvae. Samples were taken from July 2010 to November 2014 using neuston, bongo and WP-2 nets at
three localities: St. Peter and St. Paul’s Archipelago (SPSP), Rocas Atoll (RA) and Fernando de Noronha Archipelago
(FN). The larval forms
Cerataspis monstrosa
(Gray, 1828) and
Amphionides reynaudii
(H. Milne Edwards, 1832) were
recorded around these areas, constituting the first record for these oceanic islands. Out of 121 samples analyzed, one spec-
imen of
C. monstrosa
(Mysis II) was found off FN, and 20 specimens of
A. reynaudii
in nine distinct stages (Mysis II, IV,
VI, VII, VIII, IX, X, XI, XII) were found off SPSP, RA and FN
... Geographic distribution. (Fig. 2 Kemp 1939;Chace 1947Chace , 1986Fenner & Chace 1947;Crosnier & Forest 1968, 1973Hopkins et al. 1989;Hopkins et al. 1994;Burghart et al. 2007;Muñoz et al. 2012;Cardoso 2013;Cardoso et al. 2014). ...
This paper reports two deep-sea shrimps, Acanthephyra acanthitelsonis and A. armata from southwestern Atlantic waters. The samples were collected in two different moments, the first in the Potiguar Basin, northeast of Brazil (03/05° S; 38/35° W), covering the states of Rio Grande do Norte (RN) and Ceará (CE) in the year of 2011, and afterward on Rocas Atoll, located in the state of Rio Grande do Norte (RN) (3° 51’ S, 033° 49’ W; 3° 52' S, 033° 47' W) in the year of 2015. The occurrence of A. acanthitelsonis on Rocas Atoll and A. armata found along the continental slope in the Potiguar Basin, comprising both species, which were recorded for the first time in the southwestern Atlantic. This paper increases the number of Acanthephyra species recorded in Brazilian waters up to six and adds to our knowledge and distribution of deep-sea fauna in the south Atlantic.
... The spatial differences in the distribution of benthic and pelagic dendrobranchiate larvae could be an indicative of partition in space to reduce or avoid potential competition between species. Spatial partitioning of ecosystem by shrimp species has been reported at tropical coral reefs (Purser et al., 2013) and in different zones of the Mid Atlantic Ridge (Cardoso et al., 2014). In the North Sea, the recent dominance of the larvae of benthic echinoderms in the plankton in summer (Lindley and Batten, 2002) represents a major change in the balance between the meroplankton and the holoplankton and is indicative of a shift in resource partitioning between the benthic and pelagic species (Kirby et al., 2007). ...
Deep-sea pelagic habitats include the dark ocean (>200 m depth) beneath the epipelagic (0–200 m depth) layer as well as the mesopelagic (200–1000 m) and bathypelagic (water column >1000 m) zones. Except for limited areas of hydrothermal vents and seeps, life patterns in deep-sea pelagic habitats along the Mid-Atlantic Ridge (MAR) depend on biological production exported from the sunlit epipelagic layers. In this section, we will describe individual components of the pelagic environment in the MAR region, following the size categories of biota.
The deep sea is one of the last frontiers to biodiversity knowledge mainly due to the difficulties to access this environment. Additionally, the deep sea is constantly suffering anthropogenic impact (fishery activities, mininger exploration, and pollution). Recent efforts have contributed to knowledge on deep-sea Decapoda in Brazilian waters. However, these inventories are still far from complete. The main goal of this work is to compile the existing information, including these recent inventories of typically deep-sea species from Brazilian waters, >500 m depth (also including the Rio Grande Rise area). We herein list a total of 181 species of the two decapod suborders: Dendrobranchiata (32 species) and Pleocyemata (149 species). From the Pleocyemata eight out of the ten decapod infraorders were represented: 68 species of carideans; 31 of anomurans, 36 of brachyurans, 5 species of Astacidea and Polychelidae, 2 species of Achelata, and 1 of Stenopodidea and Axiidea each. As expected, the shrimp fauna was more diverse than the crab and lobster fauna. This is in contrast with the global diversity which is highest in the Brachyura.
In this paper, we provide some available information about the occurrence and some taxonomic aspects of 19 species from the Superfamily Oplophoroidea in the southwestern Atlantic (Brazilian waters), with the update to 22 species of Oplophoroidea occurring in Brazilian waters. Samples were collected during two sets of surveys. The first was performed in 2009 and 2011 in the Potiguar Basin in northeast of Brazil (03-05°S; 38-35°W; between the States of Ceará and Rio Grande do Norte) under the framework of the project "Avaliação da biota bentônica e planctônica da Bacia Potiguar e Ceará (Bpot)", with samples collected from bottom trawls in the continental slope at depth ranging from 150-2068 m. Second, under the in the framework of the ABRACOS (Acoustic along the Brazilian coast), performed in 2015 and 2017 on seamounts and offshore areas in Northeast Brazil (Ceará Chain, Rio Grande do Norte and Rocas Atoll, Fernando de Noronha Archipelago and Pernambuco State), with samples with pelagic micronekton and mesopelagic nets, in depths ranging from 50-1260 m. We highlight the occurrence of 14 species of the family Acanthephyridae and 5 species of the family Oplophoridae, including the first occurrences of five species to Brazilian deep waters: Acanthephyra kingsleyi Spence Bate, 1888, Ephyrina ombango Crosnier & Forest, 1973, Meningodora compsa (Chace, 1940), M. longisulca Kikuchi, 1985 and Systellapsis curvispina Crosnier, 1987. These records increase the knowledge on deep-sea shrimps occurring in Southwestern Atlantic.
