scholarly journals Mesophotic ecosystems at Fernando de Noronha Archipelago, Brazil (South-western Atlantic), reveal unique ichthyofauna and need for conservation

2020 ◽  
Vol 18 (4) ◽  
Author(s):  
Caio R. Pimentel ◽  
Luiz A. Rocha ◽  
Bart Shepherd ◽  
Tyler A. Y. Phelps ◽  
Jean-Christophe Joyeux ◽  
...  
Keyword(s):  
New Species ◽  
Marine Fish ◽  
Fish Species ◽  
New Records ◽  
Fish Diversity ◽  
Remotely Operated Vehicle ◽  
Western Atlantic ◽  
Fernando De Noronha

Abstract Although several studies on the ichthyofauna of the Fernando de Noronha Archipelago have been carried out, its mesophotic fish diversity has never been surveyed before. Here we used SCUBA and technical rebreather diving, baited remote underwater videos and remotely operated vehicle to record shallow (≤ 30 m depth) and mesophotic (31 to 150 m depth) fishes. Nineteen fish species belonging to 14 families are reported here as new records, representing an increase of 8.2% in marine fish richness for the region, which now has a total of 250 species and 77 families. These new records include four potential new species and highlight the importance of surveying mesophotic ecosystems, even in well studied sites. Our results also emphasize the need for protection and attention to the unique ichthyofauna found at mesophotic depths.

scholarly journals A new species of scaly blenny of the genus Labrisomus (Actinopterygii: Labrisomidae) from the tropical West Atlantic

Zootaxa ◽  
2009 ◽  
Vol 2015 (1) ◽  
pp. 62-68 ◽  
Author(s):  
IVAN SAZIMA ◽  
ALFREDO CARVALHO-FILHO ◽  
JOÃO LUIZ GASPARINI ◽  
CRISTINA SAZIMA
Keyword(s):  
New Species ◽  
Northeastern Brazil ◽  
Dark Spot ◽  
Rocky Shores ◽  
Southwestern Atlantic ◽  
Western Atlantic ◽  
Light Blue ◽  
Dorsal Fin ◽  
Fernando De Noronha ◽  
A New Species

A new species of scaly blenny, Labrisomus conditus sp. n., is described from Fernando de Noronha Archipelago, off northeastern Brazil. It differs from its Western Atlantic congeners by the following combination of characters: nuchal cirri when depressed not reaching dorsal-fin origin, 68 to 73 lateral line scales, first and second dorsal-fin spines slightly shorter than third spine and not flexible, numerous pale dots overall (light blue in life), opercular dark spot with incomplete and diffuse broad pale margin (orange in life). The new species is a territorial bottom-dweller in rocky shores and is found among algae and in crevices at depths from 0.5 to 6 m. Labrisomus conditus sp. n. feeds mostly on crustaceans (crabs, amphipods) and molluscs (snails, bivalves). The new species increases to five the species within the genus Labrisomus recorded from Southwestern Atlantic.

scholarly journals The caridean shrimps of the genus Lysmata Risso, 1816 (Decapoda: Lysmatidae) from Madagascar collected during the Atimo-Vatae expedition: a new species and two new records

2021 ◽  
Vol 774 ◽  
pp. 155-177
Author(s):  
Hossein Ashrafi ◽  
J. Antonio Baeza ◽  
Zdeněk Ďuriš
Keyword(s):  
New Species ◽  
New Records ◽  
Original Description ◽  
Western Atlantic ◽  
West Pacific ◽  
Phylogenetic Studies ◽  
The Caribbean ◽  
De Man ◽  
First Time ◽  
A New Species

The present study focuses on shrimps belonging to the genus Lysmata Risso, 1816, collected from Madagascar during the Atimo Vatae expedition carried out in 2010. Lysmata malagasy sp. nov. is a new species belonging to the clade named “long accessory ramous” or “cosmopolitan” in previous phylogenetic studies. The new species can be distinguished from the only two other representatives of this group in the Indo-west Pacific, L. ternatensis De Man, 1902, and L. trisetacea (Heller, 1861), by the accessory ramus of the lateral antennular flagellum consisting of four elongated articles. Lysmata lipkei Okuno & Fiedler, 2010 is reported here from Madagascar with a remarkable extension of its known range after its original description from Japan. This species has also been reported from Singapore and, as alien species, from Brazil. Lastly, L. kuekenthali De Man, 1902 known from numerous localities in the Indo-West Pacific biogeographic area, is reported for the first time from Madagascar. Results of the present morphological and molecular analyses suggest that L. hochi Baeza & Anker, 2008 from the Caribbean Sea is a synonym of the Indo-West Pacific L. kuekenthali, and thus the latter species is alien in the western Atlantic.

Coastal Fishes of São Tomé and Príncipe islands, Gulf of Guinea (Eastern Atlantic Ocean)—an update

Zootaxa ◽  
2007 ◽  
Vol 1523 (1) ◽  
pp. 1-48 ◽  
Author(s):  
PETER WIRTZ ◽  
CARLOS EDUARDO L. FERREIRA ◽  
SERGIO R. FLOETER ◽  
RONALD FRICKE ◽  
JOÃO LUIZ GASPARINI ◽  
...  
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
New Genus ◽  
New Records ◽  
Western Indian Ocean ◽  
Gulf Of Guinea ◽  
Western Atlantic ◽  
Gobiid Fish ◽  
Sao Tome And Principe ◽  
Eastern Atlantic Ocean

Here we report 59 new records of shore fishes for São Tomé and Príncipe islands (Gulf of Guinea), Eastern Atlantic Ocean. Ten of these are new species still to be described, including a new genus of a gobiid fish that lives in association with an axiid shrimp. A large proportion of the shore fishes of São Tomé and Principe occur on both sides of the Atlantic and many have their sister-species in the western Atlantic. To a lesser degree, there are also affinities to the western Indian Ocean.

New species and records of Newtoniellinae (Caenogastropoda, Newtoniellidae) from Brazil

2015 ◽  
Vol 95 (4) ◽  
pp. 791-804 ◽  
Author(s):  
Maurício R. Fernandes ◽  
Raquel Garofalo ◽  
Alexandre D. Pimenta
Keyword(s):  
New Species ◽  
Deep Sea ◽  
New Records ◽  
Cold Water ◽  
Present Contribution ◽  
Western Atlantic ◽  
South Eastern ◽  
Two New Species ◽  
Eastern Usa ◽  
A New Species

Newtoniellinae is a worldwide marine group of cold-water, deep-sea species, comprising the genera Cerithiella, Paramendax and Trituba. Prior to this study, the subfamily was represented in Brazil by four species of Cerithiella. The present contribution adds new Brazilian records of two of these species, Cerithiella amblytera and Cerithiella enode, in addition to new records of two species previously known only from Cuba and the south-eastern USA, respectively: Cerithiella sigsbeana comb. nov. and Cerithiella producta. Two new species of Cerithiella from Brazil are described: Cerithiella atali sp. nov. has a pointed protoconch identical to the species described in the previously synonymized genus Stilus; Cerithiella candela sp. nov. has the teleoconch very similar to Cerithiella pernambucoensis, but is differentiated by the protoconch morphology. Also, a new species of Trituba is described, Trituba anubis sp. nov., which is the second species of this genus recorded for the western Atlantic. Eumetula axicostulata comb. nov. and Eumetula vitrea comb. nov., both from the western Atlantic but not recorded from Brazil, are transferred from the genus Cerithiella. This study increases from four to nine the number of known species of Newtoniellinae from Brazil.

A new species of Gastrophanella from central western Atlantic, with a discussion of the family Siphonidiidae (Demospongiae: Lithistida)

2000 ◽  
Vol 80 (4) ◽  
pp. 599-605 ◽  
Author(s):  
G. Muricy ◽  
J.V. Minervino
Keyword(s):  
New Species ◽  
New Caledonia ◽  
Valid Species ◽  
Brazilian Coast ◽  
Western Atlantic ◽  
North East ◽  
The Family ◽  
Fernando De Noronha ◽  
The Caribbean ◽  
A New Species

A new species of Gastrophanella, G. cavernicola sp. nov. (Demospongiae: Siphonidiidae), is described from submarine caves in Fernando de Noronha Island (north-east Brazil), Carrie Bow Cay and Columbus Cay, Belize (central Western Atlantic), at depths of 5-30 m. It differs from all other species of the genus by its lobate shape with thin superficial canals and centrotylote tylostrongyles. Gastrophanella cavernicola sp. nov. is the second record of the genus Gastrophanella from both Brazil and the Caribbean. It is the sixth ‘lithistid’ sponge reported from the Brazilian coast, whereas at least 32 other desma-bearing sponges are known from the Caribbean. The genus now includes five valid species, G. implexa Schmidt from the West Indies (type species), G. mammilliformis Burton from South Africa, G. primore Gómez from the Pacific Coast of Mexico, G. stylifera Mothes & Silva from south Brazil, and G. cavernicola sp. nov. from north-east Brazil and Belize. Aciculites oxytylota Lévi & Lévi from New Caledonia is transferred to Siphonidium Schmidt. The family Siphonidiidae Lendenfeld, which is probably related to order Hadromerida, is redefined to contain only Siphonidium and Gastrophanella, both with fused rhizoclone desmas associated to microspined exotyles.

scholarly journals Reef fish and benthic assemblages of the Trindade and Martin Vaz Island group, southwestern Atlantic

2011 ◽  
Vol 59 (3) ◽  
pp. 201-212 ◽  
Author(s):  
Guilherme Henrique Pereira-Filho ◽  
Gilberto Menezes Amado-Filho ◽  
Silvia M. P. B. Guimarães ◽  
Rodrigo L. Moura ◽  
Paulo Y. G. Sumida ◽  
...  
Keyword(s):  
Reef Fish ◽  
Fish Species ◽  
Fish Assemblages ◽  
Coralline Algae ◽  
Brazilian Coast ◽  
Benthic Assemblages ◽  
Remotely Operated Vehicle ◽  
Western Atlantic ◽  
Island Group ◽  
Deep Reefs

The Trindade and Martin Vaz island group (TMVIG) is located at about 1,120 km off the Brazilian coast. Despite its importance, highlighted by the presence of several endemic fish species, the TMVIG lacks detailed information on the structure of fish and benthic assemblages. Presented here is the first quantitative assessment of reef fish and benthic assemblages of the TMVIG in a depth gradient ranging from 5 to 45 m. Additional qualitative information on reef assemblages between 45 and 100 m was obtained using advanced gas diving techniques (TRIMIX) and a remotely operated vehicle (ROV). Similarly to other Brazilian oceanic islands, the TMVIG possesses depauperated fish and benthic assemblages, possibly due to its isolation and small size in comparison to the mainland. Depth was the most important factor affecting the structure of fish assemblages, with the density of most fish species declining with depth. Deep reefs (> 45 m) were characterized by the presence of extensive rhodolith beds and rocky reefs sparsely covered with crustose coralline algae, black coral (Cirripathes sp.) and a few massive or plate-like reef corals. Part-time or obligatory planktivorous fishes (e.g. Cephalopholis furcifer and Clepticus brasiliensis) also dominated deep reefs. Similar characteristics were recorded in mesophotic reef ecosystems across the Western Atlantic. Evidence of overfishing (obtained here and in other recent studies), the presence of four endemic and restricted range fish species, as well as the increase in number of new (and still undescribed) endemic taxa, indicates that the adoption of precautionary conservation measures are urgently needed in order to maintain the fragile and unique ecosystems of the TMVIG.

New species and new records of Phragmatopoma (Polychaeta: Sabellariidae) from Tropical America

Zootaxa ◽  
2020 ◽  
Vol 4845 (3) ◽  
pp. 301-330
Author(s):  
YESSICA CHÁVEZ-LÓPEZ
Keyword(s):  
New Species ◽  
Costa Rica ◽  
New Records ◽  
Valid Species ◽  
Western Atlantic ◽  
Mexican Pacific ◽  
Tropical America ◽  
Standard Terminology ◽  
Three New Species ◽  
Taxonomic Studies

The genus Phragmatopoma included, until now, only four valid species with distributions in Eastern Pacific and Western Atlantic. Since most taxonomic studies of Phragmatopoma include poor and uninformative descriptions, the aim of this work was to expand previous descriptions of the sabellariids of Phragmatopoma genus from Tropical America. Sabellariids from two Mexican collections, the Reference Collection of El Colegio de la Frontera Sur, Chetumal, and Laboratorio de Sistemática de Invertebrados Marinos (LABSIM), Universidad del Mar, Puerto Ángel, were revised. Six hundred sixty-six specimens were revised, and eight species were identified. Three new species are proposed: Phragmatopoma balbinae n. sp., from southern Mexican Pacific, P. carlosi n. sp., from northern Mexican Pacific and P. villalobosi n. sp., from Pacific of Costa Rica. Another morphospecies, Phragmatopoma sp., from Pacific of Costa Rica is characterized; however, it is only one specimen. Two species, Phragmatopoma digitata and P. peruensis, previously buried in the synonyms of P. virgini (type locality: Straits of Magellan, Chile), are considered as valid species. Also, new records of P. californica and P. caudata were made in Baja California and Veracruz, respectively. Additionally, the use of standard terminology for the description of opercular paleae and chaetae is proposed. 

scholarly journals Twelve new records of Coral associated fish from the Saint Martin’s island based on morphometric and molecular approaches

2021 ◽  
Vol 48 (2) ◽  
pp. 253-262
Author(s):  
Mst Mashruba Naznin ◽  
Mohammad Abdul Baki ◽  
Md Muzammel Hossain ◽  
Sujan Kumar Datta ◽  
Md Sagir Ahmed
Keyword(s):  
Coral Reef ◽  
Marine Fish ◽  
Fish Species ◽  
Management Strategy ◽  
New Records ◽  
Marine Fish Species ◽  
Molecular Approaches ◽  
Saint Martin ◽  
Argyrosomus Regius ◽  
Thalassoma Lunare

The study was conducted to know the diversity of coral associated fishes of the Saint Martin Island from December 2017 to April 2019. A total of 46 coral associated marine fish species were recorded, among them 12 species; sunajtuLiughcliug , Lutjanus russellii, Parupeneus indicus, Siganus sutor, Thalassoma lunare, Gazza achlamys, Pomadasys andamanensis, Pomadasys kaakan, Lethrinus crocineus, Argyrosomus regius, Istigobius ornatus and Cryptocentrus cyanotaenia under six family were newly recorded from this Island. We assume that there are more species to be explored and need proper management strategy for conservation of coral reef and its associated biodiversity. Bangladesh J. Zool. 48(2): 253-262, 2020

Taxonomy of Plakortis and Plakinastrella (Demospongiae: Plakinidae) from oceanic islands off north-eastern Brazil, with description of three new species

2003 ◽  
Vol 83 (2) ◽  
pp. 385-397 ◽  
Author(s):  
Fernando C. Moraes ◽  
Guilherme Muricy
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Oceanic Islands ◽  
Western Atlantic ◽  
Eastern Brazil ◽  
North Eastern ◽  
Fernando De Noronha ◽  
Plakortis Angulospiculatus ◽  
Three New Species ◽  
Shape And Size

Three species of Plakortis and one of Plakinastrella (Demospongiae: Homosclerophorida) collected mostly at oceanic islands off north-eastern Brazil (Atol das Rocas, Fernando de Noronha and São Pedro e São Paulo Archipelago) are described, three of which are new to science: Plakortis angulospiculatus, P. insularis sp. nov., P. microrhabdifera sp. nov, and Plakinastrella microspiculifera sp. nov. External morphological characters such as colour, oscules, and consistency are sufficient to discriminate all the four species in the field, except Plakortis angulospiculatus from P. microrhabdifera. Internal features such as skeletal arrangement, shape and size of diods, and presence of microrhabds and calthrops are also important taxonomic characters for western Atlantic Plakortis and Plakinastrella. We consider as valid only five species of Plakortis in the western Atlantic: the three species described here plus P. halichondrioides and P. zyggompha. All these species except P. zyggompha have been recorded from Brazil. Plakinastrella has now two species in the western Atlantic, P. onkodes and P. microspiculifera sp. nov. The generic distinction between Plakortis and Plakinastrella is tenuous, based only on the presence of spicule size-classes and of deformed vs normal calthrops, and both genera need detailed revision.

Two new species and new records in the alpheid shrimp genera Salmoneus Holthuis, 1955 and Deioneus Dworschak, Anker & Abed-Navandi, 2000 in the Atlantic Ocean (Malacostraca: Decapoda)

Zootaxa ◽  
2020 ◽  
Vol 4786 (3) ◽  
pp. 345-368 ◽  
Author(s):  
ARTHUR ANKER
Keyword(s):  
New Species ◽  
Atlantic Ocean ◽  
New Records ◽  
Original Description ◽  
Caribbean Coast ◽  
Western Atlantic ◽  
Morphological Heterogeneity ◽  
The Caribbean ◽  
First Time ◽  
Alpheid Shrimp

The present study deals with two species new to science, as well as several new records in the closely related alpheid shrimp genera Salmoneus Holthuis, 1955 and Deioneus Dworschak, Anker & Abed-Navandi, 2000, based on material collected at various localities in the tropical western and eastern Atlantic Ocean. In the western Atlantic, Salmoneus inconspicuus sp. nov. is described based on material from the Caribbean coast of Panama, Cuba, French Antilles and (with some doubts) Bermuda. The new species has been previously reported from the eastern Caribbean Sea as S. teres Manning & Chace, 1990, a closely related species so far known only from Ascension Island in the central Atlantic. Salmoneus camaroncito Anker, 2010 is reported from the Caribbean coast of Mexico, for the first time since its original description. Salmoneus carvachoi Anker, 2007 is reported from Colombia and southeastern USA, representing a new record of the species for each of these countries. Salmoneus depressus Anker, 2011 and Salmoneus setosus Manning & Chace, 1990 are reported for the first time from Cuba and Panama, respectively. In addition, these two species, as well as Salmoneus wehrtmanni Anker, 2010, are reported from new localities in Mexico. In the eastern Atlantic, Salmoneus saotomensis sp. nov. is described based on a single specimen from São Tomé Island in the Gulf of Guinea. The new species is characterised by the somewhat enlarged minor cheliped and is compared to all other Atlantic species presenting this feature. Deioneus sandizelli Dworschak, Anker & Abed-Navandi, 2000 is reported from São Tomé Island, for the first second time since its original description based on the Cape Verde type material. The characters separating Deioneus and Salmoneus are reassessed. The new evidence shows that these two genera are distinguished by only one morphological feature known to be variable in at least one non-related alpheid genus. However, in view of the increasing morphological heterogeneity in Salmoneus, it seems more appropriate to retain Deioneus as a valid genus for it may represent a distinct clade that also includes several other species currently placed in Salmoneus. 

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