Two new species of Amphilophus have been described by Hans Recknagel, H. Kusche, K.R. Elmer & A. Meyer from the crater lakes of Nicaragua in the San Juan River basin. The adaptation of an Ancient species (Amphilophus citrinellus) to the now isolated lakes has recently been a major topic of research after it was demonstrated that speciation could not only occur in allopatry (species geographic separation) but also in sympatry (a new species derives from another in the same location). At this point, 13 species of Amphilophus have been recognized from the Nicaraguan lakes. Seven of them (five endemic) from the small crater Lake Apoyo. Four endemic species are recognized from Lake Xiloá, one of them, Amphilophus viridis, is described in this paper. Two species are now recognized from the Asososca lagoon at Managua; A. citrinellus and A. tolteca, the latter endemic to this lake and also described in this paper. Yet more species of Amphilophus are expected to be recognized scientifically from the fascinating lakes of Nicaragua.
Recknagel, Hans & H. Kusche, K.R. Elmer & A. Meyer. 2013. "Two new endemic species in the Midas cichlid species complex from Nicaraguan crater lakes: Amphilophus tolteca and Amphilophus viridis (Perciformes, Cichlidae)". Aqua: International Journal of Ichthyology. v. 19(n. 4), pp. 207-224 (crc05757) (streszczenie)
Frances E. Hauser i Hernán López-Fernández opisali nowy gatunek ziemiojada z rodzaju Geophagus z rzeki Berbice w Gujanie. Nowy gatunek różni się od innych przedstawicieli Geophagus w grupie Geophagus surinamensis głównie dwiema cechami wzoru ubarwienia. Obecność niepełnego paska podoczodołowego i liczbą pionowych pasów na bokach ciała, sześcioma u nowo opisanego gatunku, z któych dwa (numer 2. i 3.) zbiegającymi u podstawy płetwy grzbietowej. Nazwa gatunkowa crocatus odnosi się do szafranowożółtej barwy obecnej na wieczkach skrzelowych u żywych osobników. Gatunek znany jest jedynie z rzeki Berbice.
Hauser, Frances E & H. López-Hernández. 2013. "Geophagus crocatus, a new species of geophagine cichlid from the Berbice River, Guyana, South America (Teleostei: Cichlidae)". Zootaxa. v. 3731(n. 2), pp. 279 – 286 (crc05756) (streszczenie)
A new species of Chalinochromis has been identified from Lake Tanganyika in Tanzania by Ad Konings, it was previously confused with Chalinochromis sp. 'bifrenatus' but suspected to be a new species by Patrick Tawil. It is provisionally named Chalinochromis sp. 'patricki'. The reasons for the identification of this form as undescribed are expressed in the referenced article.
The description of a new Crenicichla species, C. taikyra, the fifteen Crenicichla described from the Paraná River basin, second largest drainage in South America, has been published in the journal Zootaxa by Jorge Casiotta and five junior authors. The new Crenicichla, 124th to be described for the genus (with about 90 of those generally considered valid) is diagnosed from all other Crenicichla (except C. jurubi, C. semifasciata, and C. yaha) by possessing a stout lower pharyngeal tooth plate with molariform teeth, A combination of traits allows to distinguish it from the remaining three species, for which C. yaha, another Paraná species, is most closely related. The give name taikyra derives from the Guarani language and means thick tooth.
Casciotta, Jorge & A. Almirón, D. Aichino, S. Gómez, L. Piálek & O. Říčan. 2013. "Crenicichla taikyra (Teleostei: Cichlidae), a new species of pike cichlid from the middle río Paraná, Argentina". Zootaxa. v. 3721(n. 4), pp. 379 – 386 (crc05740) (streszczenie)
A new Cichlid Press iBook by Ad Konings about the 218 cichlid species that occur in Lake Malawi National Park in Malawi has been published and is now available for all people with an iPad at the iTunes Apple Store. Each cichlid species covered is represented by photographs of both male and female for easy recognition, but also detailed characters are given to distinguish between the various forms that look alike. Almost all photos were taken in the lake, and the information given is based on the author’s observations—over a period of more than 30 years.
Some years ago, Magnus and Mikael Karlsson, of African Diving Ltd., discovered in Lake Tanganyika what has been the most elusive and one of the most beautiful varieties of Tropheus moorii, namely the Tanzania Murago. The origin of this morph had been a well-kept secret since. A few days ago, because of the extremely low water level in Lake Tanganyika due to lack of rains, Ad Konings was able to spot an otherwise sunken reef just above the surface off the coast of Tanzania. After exploring it, the Tanzania Murago Tropheus was found and photographed underwater. Due to the small size of the habitat and of the Tropheus population there dwelling, and hence its vulnerability, the precise locality will remain undisclosed.
Yet another species of Australoheros, A. sanguineus has been described by the Brazilian ichthyologist Felipe Ottoni from the small coastal rio Cubatão in the Santa Catarina state in southern Brazil. The new species is diagnosed as to posses a conspicuous rounded caudal-fin base; two blood red regions on the corners of caudal-fin posterior margin, that give the fish its specific name; absence of conspicuous metallic blotches on anal-fin base; absence of a red pigmented line on dorsal-fin margin; presence of one conspicuous blue iridescence bar on dorsal-margin and other apparently less important meristic traits. With this new species we have 29 that are currently not considered in synonymy.
Ottoni, Felipe. 2013. "Australoheros sanguineus sp. n. – a new cichlid species from the rio Cubatão basin, southern Brazil (Cichlidae: Heroini)". Vertebrate Zoology. v. 63(n. 2), pp. 161 – 169 (crc05736) (streszczenie)
A description of new species of Apistogramma, A. aguarico, has been published in the magazine Vertebrate Zoology. The new species is described from the Lagartococha River in the northeastern Ecuador Amazon River basin. The species was spotted by the author Uwe Römer during a visit in 2006 to the Field Museum of Natural History in Chicago, while examining the ichthyology collection. The specific name aguarico refers to the type locality area, being situated 25 km upstream the Aguarico river (tributary of the Amazon basin). The species is established to belong to the Apistogramma regani species group and although it does not apparently owns any unique characteristic, it differentiates from all Apistogramma species by a combination of characters that include a clear truncate caudal fin without markings, two to three fragmentary rows of distinct oval abdominal spots and both lobes with filamentous streamers in the largest specimens. With this new species, the genus Apistogramma reaches 84 generally accepted described species.
Römer, Uwe & I. Hahn. 2013. "Apistogramma aguarico sp. n.: A new species of geophagine cichlid fish (Teleostei: Perciformes) from the Ecuadorian and Peruvian río Napo system". Vertebrate Zoology. v. 63(n. 2), pp. 171-181 (crc05735) (streszczenie)
Pelvicachromis silviae has been described by Anton Lamboj as the official name for Pelvicachromis sp. affin. Subocellatus. The provisional name has its origin as far back as 1968 by Thys van den Audenaerde. It had to wait a long time to get an official name. The beautiful name silviae is given by Anton to honor his wife Silvia, who apparently has been more than patient with him in regards to all of his fish trips and hard working habits. The type locality was stated in the Niger Delta at Ughelli [Nigeria]. It had always been a mystery where exactly this fish came from. An extensive diagnosis against all Pelvicachromis species is offered, from which Pelvicachromis silviae differs in combinations of traits.
Steele & al. (2013) have described a new species, Krobia petitella, from the Berbice River drainage in Guyana, bringing the number of formally named species in this genus to four. The new species is distinguished mostly by details of the (preserved) color pattern. Life colors are not recorded, and Krobia petitella seems to be unknown in the aquarium hobby. The paper contains a discussion of the generic status of Aequidens potaroensis and Ae. paloemeuensis, which are obviously closely related but differ from Krobia in a number of characters. Therefore, the authors suggest to refer to them as 'Aequidens' for the time being.
Steele, Sarah E & E. Liverpool & H. López-Hernández. 2013. "Krobia petitella, a new species of cichlid fish from the Berbice River in Guyana (Teleostei: Cichlidae)". Zootaxa. v. 3693(n. 2), pp. 152 – 162 (crc02331) (streszczenie)
Podział rodzaju Tilapia Smith, 1840, w szerokim znaczeniu, jest wynikiem wyczerpujących badań filogenetycznych (głównie na cechach molekularnych) na pielęgnicach zaliczanych wcześniej do plemienia Tilapini (Dunz & Schliewen 2013). Rezultaty tych badań znane były już od jakiegoś czasu z uwagi na politykę wydawcy, który udostępnił "zaakcetowane rękopisy", niemniej dopiero teraz praca jest "oficjalnie" opublikowana a proponowane nazwy wchodzą w użycie. Trzy wcześniejsze podrodzaje wchodzące w skład Tilapia - Coptodon Gervais, 1853, Heterotilapia Rega, 1920 oraz Pelmatotilapia Thys, 1969 - zostały podniesione do rangi rodzaju. Podczas gdy skład dwóch pierwszych pozostaje bez zmian, do Pelmatotilapia zaliczane są jedynie P. mariae i P. cabrae. Nowy monotypowy rodzaj, Coleotilapia został stworzony dla Tilapia joka. Tylko cztery gatunki pozostały w rodzaju Tilapia: T. sparmanni, T. baloni, T. ruweti, i T. guinasana. Trzy gatunki, mianowicie 'Tilapia brevimanus, 'T.' busumana oraz T. pra nie zostały umieszczone w żadnym z dotychczasowych ani w nowym rodzaju. Stworzono kilka nowych plemion" Coleotilapini, Heterotilapini, Pelmatotilapini, Coptodonini, Etiini, Steatocranini (w każdym po jednym rodzaju), Gobiocichlini (z Gobiocichla i gatunkiem o wcześniej nieznanej przynależności genetycznej, dotychczas zaliczanym kolejno do Tilapia i Steatocranus), oraz Oreochromini (zawierające Oreochromis, Alcolapia, Tristramella, Iranocichla, Sarotherodon, Pungu, Konia, Myaka, Stomatepia oraz - z wątpliwościami z powodu braku danych DNA - Danakilia). Zrewidowane plemię Tilapini zawiera rodzaje Tilapia, Chilochromis i Congolapia. Klasyfikacja, a zwłaszcza użyteczność tylu jednorodzajowych plemion może być poddana wątpliwości, ale jest w pełni wyjaśniona i przedyskutowana w obecnej pracy.
Dunz, Andreas R. & U.K. Schliewen. 2013. "Molecular phylogeny and revised classification ofthe haplotilapiine cichlid fishes formerly referred to as "Tilapia"". Molecular Phylogenetics and Evolution. v. 68(n. 2013), pp. 64-80 (crc05007) (streszczenie)
Aquarists at the ZSL London have launched a worldwide search for a female of a critically endangered Madagascar cichlid species, Ptychochromis insolitus, the Mangarahara cichlid, which was once found in the Mangarahara River in Madagascar. It has been apparently extirpated from its natural habitat by the construction of dams that have dried up its course. The London Zoo counts with just two males of this species, and are hopeful they can soon get a female to keep a population going and save this fish from extinction. If you know of a female of this species that can be used in this effort contact the London Zoo.
" The Mangarahara cichlid is shockingly and devastatingly facing extinction; its wild habitat no longer exists and as far as we can tell, only three males remain of this entire species," said ZSL London Zoo’s Brian Zimmerman in a statement. "It might be too late for their wild counterparts, but if we can find a female, it’s not too late for the species. Here at ZSL London Zoo we have two healthy males, as well as the facilities and expertise to make a real difference. "
“ We are urgently appealing to anyone who owns or knows someone who may own these critically endangered fish, which are silver in color with an orange-tipped tail, so that we can start a breeding program here at the Zoo to bring them back from the brink of extinction ".
This morning the iTunes Store activated Ad Konings’ latest ibook, Tropheus in their natural habitat. The electronic version is identical to the printed version which will be available in about a month’s time. The ibook version has 8 embedded video clips showing Tropheus species in their natural setting. The book has something for everybody; besides descriptions of the eight species he accepts as valid, complete with a myriad of geographical variants, also the natural behavior of these fascinating cichlids is discussed in detail. And although Tropheus appears to behave rather different in captivity than in the wild, a chapter is devoted to the husbandry of these cichlids. Also the scientifically inclined reader will find a host of information and ideas that will help in understanding the evolution of these wonderful species.
As we come to expect of productions from Cichlid Press, the quality of the photos is outstanding (each photo in the book can be opened up to full screen resolution), and many of the geographical variants are here shown for the first time in their natural habitat. Tropheus in their natural habitat is a valuable addition to any library.
Metriaclima zebra is arguably the most iconic cichlid from Lake Malaŵi even though it was described from a single type of unknown origin. It was suggested earlier (Konings 2007) that the holotype probably originated from Likoma Island and in this paper (Stauffer et al. 2013) this has been substantiated by comparing the holotype with several populations at Likoma Island, from one of which the type could not be distinguished.
Apart from the description of three species, Metriaclima lundoense, M. tarakiki, and M. pambazuko, which were known before and are now formally described, one species turned out to be a cryptic one that I had not anticipated: Metriaclima midomo. The interesting part is that the so-called “Blue Blaze” zebra from Tanzania and Chizumulu Island, did not turn out to be morphologically different from other M. zebra, even though this variant is often smaller than “standard” M. zebra. The blue blaze zebra from Lundo Island (Tanzania) though, showed significant and distinct differences with all other Tanzanian zebra-like species that it was described as a different species: M. midomo. It is endemic to Lundo Island where it shares the rocky habitat with at least four other members of Metriaclima.
While Stauffer et al. (2013) determined distinction between M. midomo and M. zebra, they could not find any significant difference between four species that I had initially classified as different: M. sp. ‘black dorsal chiloelo, M. sp. ‘black dorsal nkolongwe’, M. sp. ‘black dorsal nkhungu’, and M. sp. ‘black dorsal thundu’. All these variants are now grouped under the species Metriaclima nigrodorsalis.
In the course of their investigations Stauffer et al. (2013) also realized that the name of the species Pseudotropheus pursus was incorrect. In the original publication, under the heading etymology the meaning of the specific epithet was given as: “The name pursus, from the Latin meaning clean, was chosen to reflect the cleaning behavior of this species.” This was clear evidence of an inadvertent error and according to rule 32.5.1. of the International Code of Zoological Nomenclature, it had to be corrected. The Latin for “clean” is “purus” and Stauffer et al. (2013) corrected the name to Metriaclima purum (Stauffer 1991), but on this site the species is regarded synonymous to M. lanisticola and the original genus name is thus retained and the species is now referred to as Pseudotropheus purus.
Stauffer, Jay Richard Jr. & K. Black & A.F. Konings. 2013. "Descriptions of five new species of Metriaclima (Teleostei: Cichlidae) from Lake Malaŵi, Africa". Zootaxa. v. 3647(n. 1), pp. 101-136 (crc05041) (streszczenie)
A new species of Teleocichla, T. wajapi from the río Jarí in the left bank of the lower Amazon basin in Brazil has been described by Henrique R. Varella and Cristiano R. Moreira from the federal University of São Paulo [Brasil]. The description has been published on April 23 in the digital journal Zootaxa. The new species has been mentioned in the aquarium literature since 1997 and was known as Teleocichla sp. 'Jari'. The new Teleocichla seems to be closely related to T. centrarchus, with which it shares an unique trait in the genus and a rare one in the closely related Crenicichla; the possession of four instead of three anal fin spines. It differs from T. centrarchus in a combination of features, including a smaller eye and less scales in the e1 line (a line of scales just above the the posterior part of the lateral line). T. wajapi has been named after the indigenous people of the Tupi-guarani cultural-linguistic group, Wajãpi, the Wajãpi group has a population of less than 2000 people distributed in several tribes in the state of Amapá, Brazil, and in French Guiana. The new Teleocichla is the largest of the described species.
Varella, Henrique R & C.R. Moreira. 2013. "Teleocichla wajapi, a new species of cichlid from the rio Jari, Brazil, with comments on T. centrarchus Kullander, 1988 (Teleostei: Cichlidae)". Zootaxa. v. 3641(n. 2), pp. 3641 (crc05039) (streszczenie)
A new species of Crenicichla from Paraguay, C. gillmorlisi, has been described in the recent days in the journal Zootaxa by Sven Kullander and Carlos A. Santos de Lucena. The new species is apparently restricted to the río Acaray, a right bank tributary of the río Paraná in Paraguay. Six species of Crenicichla are known to inhabit Paraguay. The new species is very closely related to C. mandelburgeri Kullander, 2009 (and closely located), from which it only differs in having blotches on the sides of adult fish, instead of a lateral band. The same trait diagnoses the new C. gillmorlisi from the rest of the Crenicichla species, which now reach 89 generally accepted species, being the most numerous cichlid genus, with yet over 40 potentially undescribed species awaiting diagnosis.
Kullander, Sven & C.A.S. Lucena. 2013. "Crenicichla gillmorlisi, a new species of cichlid fish (Teleostei: Cichlidae) from the Paraná river drainage in Paraguay". Zootaxa. v. 3641(n. 2), pp. 149 – 164 (crc05012) (streszczenie)
A new species of Amazonian Apistogramma from a seemingly restricted area in Loreto, 80 kilometers south of Iquitos [Perú] has been described on the basis of the Apistogramma Project within the Laboratoire Mixte International. The new species A. paulmuelleri, honors the late Professor Emeritus Dr. Paul Müller. It was described by a group of six researchers leaded by Uwe Römer. The new species has been known in the literature since the 2002 as A. sp. "Masken/Masked" (Koslowski, 2002) and later by other names, but it had already been present in the literature since at least 1996 — miss-identified as Apistogramma cruzi. The fish has also been known as Apistogramma A52. The new species apparently belongs to the Apistogramma regani species group. One of the most conspicuous characteristics of this new species (that gave rise to the provisional name) are the vivid red and light blue markings on the cheeks and gill covers of males, plus a distinct band-like black spot occupying the complete height of the caudal peduncle in both sexes.
Römer, Uwe & J. Beninde, F. Duponchelle, C.R. García-Dávila, A. Vela-Díaz & J.-F. Renno. 2013. "Description of Apistogramma paulmuelleri sp. n., a new geophagine cichlid species (Teleostei: Perciformes) from the Amazon river basin in Loreto, Peru". Vertebrate Zoology. v. 63(n. 1), pp. 15-34 (crc05008) (streszczenie)
The species level taxonomy of the haplochromine genus Astatoreochromis has been revised. Two species are recognized as valid: A. alluaudi Pellegrin, 1904 (type species) from the Lake Edward and Lake Victoria region, and A. straeleni (Poll, 1944) from the Lake Tanganyika basin. A. vanderhorsti (Greenwood, 1954)has been formally synonymized with A. straeleni. The reasons for doing so are fully discussed. The work provides a comprehensive redescription, ecological and biological data, and photographs showing live coloration for each species. Altogether, this is a very recommendable work. It is, however, doubtful if A. straeleni can be regarded as a further piece of evidence for a pre-Tanganyika connection between the Malagarazi and Congo drainages via Lukuga River, as concluded by the authors. Such a view is not supported by the distributional pattern of A. straeleni as compared with the species mentioned in this context, nor by the age estimates for this and other haplochromine lineages derived from various molecular analyses.
Banyankimbona, Gaspard & Emmanuel Vreven, Jos Snoeks. 2013. "A revision of the genus Astatoreochromis (Teleostei, Cichlidae), East-Africa". European Journal of Taxonomy. v. 39, pp. 1-21 (crc04977) (streszczenie)
Barbara Taborsky ze swoimi współpracownikami opublikowała ostatnio bardzo ważną pracę dokumentującą badania, jakie zostały przeprowadzone na Neolamprologus pulcher. Jej zespół dokonał wielu obserwacji zachowań tej popularnej tanganickiej pielęgnicy z uwagi na fakt, iż pary tarlaków otrzymują pomoc w ochronie potomstwa od innych, niespokrewnionych osobników. Tym razem zbadano, czy środowisko ryb w pierwszych dniach ich życia może przeprogramować ich mózgi, jak w przypadku ludzi. I, co fascynujące, może! Naukowcy użyli 10-dniowego narybku (tuż po rozpoczęciu swobodnego pływania) z 6 różnych miotów, i rozdzielili każdy na dwie równe części. Jedna połowa była zostawiana z rodzicami (w kilku przypadkach wraz z osobnikami pomagającymi), podczas gdy druga była trzymana bez udziału dorosłych ryb. Po dwóch miesiącach dorosłe ryby były usuwane i wszystkie grupy były podchowywane do dorosłości w identycznych warunkach. Po półtora roku - osiągają one dojrzałość płciową po 12 miesiącach - zbadano mózgi 36 ryb (16 wychowanych przez rodziców i 20 bez ich udziału). Taborsky i in. porównali poziom wydzielania czterech genów odpowiedzialnych za reakcję na stres związaną z zachowaniami społecznymi. Badacze odkryli, że nawet po 1,5 roku zauważalna była wyraźna różnica w wydzielaniu tych hormonów (nie związanych z płcią i statusem hierarchicznym osobnika). Oznacza to, że otoczenie (w tym wypadku obecność lub brak rodziców) w fazie wczesnego rozwoju na stałe programuje mózg ryby! Przez lata toczyła się dyskusja, czy odbieranie inkubującym samicom (głównie z rodzaju Tropheus) sprawia, że potomstwo w momencie kiedy osiąga dojrzałość jest niezdolne do wychowywania swojego narybku, i tym samym muszą być "naznaczone", by nauczyć się procesu inkubacji. Teraz już wiemy, że faktycznie pierwsze dni życia ryby są niezwykle istotne dla właściwego zaprogramowania jej mózgu, a środowisko ma znaczący wpływ na ten proces.
Taborsky, Barbara & Linda Tschirren, Clémence Meunier and Nadia Aubin-Horth. 2013. "Stable reprogramming of brain transcription profiles by the early social environment in a cooperatively breeding fish". Proceedings of the Royal Society of London B. v. 280(n. 1753), pp. 1-7 (crc04853) (streszczenie)
Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania, have been described in the recent issue of Zookeys, by researchers from the Naturalis Biodiversity Center and the Institute of Biology Leiden, the Netherlands. The two species, Haplochromis argens and H. goldschmidti (previously known as Haplochromis or Yssichromis "argens" and Haplochromis "dusky argens" respectively) closely resemble each other, but the paper demonstrate that the morphology of sympatric populations of the two species differ more than between populations from different locations, suggesting the existence of two species. H. argens is regarded as extremely rare and probably in danger of extinction, while the conservation status of H. goldschmidti, named in honour of Tijs Goldschmidt author of the book Darwin's Dreampond, is currently unknown.
de Zeeuw, Marnix P & I. Westbroek, M.J.P. van Oijen & F. Witte. 2013. "Two new species of zooplanktivorous haplochromine cichlids from Lake Victoria, Tanzania". Zookeys. v. 256, pp. 1-34 (crc04822) (streszczenie)