Benjamin Victor

Benjamin Victor
Nova Southeastern University | NSU · The Guy Harvey Research Institute

MD PhD MBA

About

71
Publications
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Publications

Publications (71)
Article
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Review of the image plates shows that an image of Rypticus subbifrenatus was incorrectly identified as that of its similarly colored congener R. carpenter . Hence the latter was deleted from the St. John-Thomas inventory. In addition, an image of the blenniid fish Hypsoblennius exstochilus was obtained from St. Thomas, and it is now added to that i...
Article
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The US Virgin Islands (USVI) include St. John and St. Thomas on the Puerto Rican Platform (PRP) and St. Croix, isolated by 2000 m deep water 45 km south of that platform. Previous inventories of the marine fishes of these islands include a comprehensive 2014 checklist of the fishes of St. Croix and a list of the fishes of the PRP produced in 2000....
Article
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The glass blennies of Emblemariopsis are found only in the tropical western Atlantic Ocean and the genus is composed of 13 species in the Greater Caribbean region and one species from Brazil. The identity and ranges of the various species are poorly documented and the available keys and species lists are unreliable, mainly due to species descriptio...
Article
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The anthiadine fish Meganthias natalensis (Fowler, 1925) is reported for the first time from the Socotra Archipelago based on a single female specimen of 27.5 cm standard length taken by hook-and-line off Abd al-Kuri Island at a depth of 100–120 m. The voucher specimen represents a substantial northern extension of the distributional range for the...
Article
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A new fairy basslet, Pseudanthias timanoa n. sp., is described from 21 specimens, 50.0-79.1 mm SL, collected recently from New Caledonia, in the southwestern corner of the tropical Pacific Ocean. The new species is typically found on deep coral-reef slopes, at depths of 50-100 m. One of many slender, brightly colored fairy basslets found throughout...
Article
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For almost a century, a single small holotype specimen of the searobin Prionotus murielae Mowbray, 1928 from Bahamas has been considered a valid species. The diagnostic character for the species is two long filamentous uppermost pectoral-fin rays, otherwise every author agreed it was essentially the same as the Bandtail Searobin, Prionotus ophryas...
Article
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A review of collections of triplefin blennies of the genus Enneanectes from the tropical western Atlantic Ocean reveals a new species, Enneanectes flavus n. sp., belonging to the unscaled-abdomen subgroup. The species is distinguished by having mature adults with black spinous dorsal fins and mature males with a bright yellow rear body and tail; ot...
Article
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An unusual yellow-striped deepwater hemerocoetine fish trawled up from 70 m depth in the Lakshadweep Sea (Laccadive Sea) off Kerala, southern India is described here as the new species Pteropsaron indicum, based on two male specimens measuring 82 and 84 mm SL. The new species of signalfish is notable among the grouping of three genera sharing crowd...
Article
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A new endemic species of labrisomid blenny, Starksia splendens n. sp., is described from the Cayman Islands in the central Caribbean Sea. The new blenny is a member of the Starksia lepicoelia species complex (Blackcheek Shy Blennies), which breaks up into a set of allopatric cryptic species in the region. This case is an example of the difficulty i...
Article
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The hamlets of the genus Hypoplectrus comprise a species flock of about 20 species found on coral reefs of the tropical western Atlantic Ocean, distinguished by complex color patterns and sharing mitochondrial DNA haplotypes within the Caribbean Sea (Gulf of Mexico and Florida-centered species are about 3% divergent in the COI marker). The species...
Article
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The Indo-West Pacific (IWP) coral-reef damselfish Neopomacentrus cyanomos is well established across the south-west Gulf of Mexico (SwGoMx). Comparisons of mtDNA sequences of the SwGoMx population with those from conspecifics from 16 sites scattered across its native geographic range show that the SwGoMx population is derived from two of four nativ...
Data
Global shipping routes Global Shipping Routes (from Halpern et al. 2008. A Global Map of Human Impact on Marine Ecosystems.Science 319: 948, DOI: 10.1126/science.1149345, Figure S2, with permission from AAAS). Red routes are the most heavily travelled.
Data
Neopomacentrus taeniurus mtDNA sequences Sequences of 3 confirmed Neopomacentrus taeniurus (Bleeker, 1856)
Data
DNA Sequence data Sample sites, sample sizes and data for DNA sequences of Neopomacentrus cyanomos and N. taeniurus referred to in this paper.
Article
Full-text available
There are two large sets of brightly striped gobies of the genus Elacatinus in the warm waters of the western Atlantic Ocean: one that cleans larger fishes at cleaning stations on coral reefs and another set that live in and among sponges and are not known to clean. The two sets of gobies are phylogenetically separate as well, forming two independe...
Preprint
Full-text available
The Indo-west Pacific (IWP) coral-reef damselfish Neopomacentrus cyanomos is well established across the southwest Gulf of Mexico (SwGoMx). Comparisons of mtDNA sequences of the SwGoMx population with those from conspecifics from 16 sites scattered across its native range show that the SwGoMx population is derived from two of four native lineages:...
Preprint
Full-text available
The Indo-west Pacific (IWP) coral-reef damselfish Neopomacentrus cyanomos is well established across the southwest Gulf of Mexico (SwGoMx). Comparisons of mtDNA sequences of the SwGoMx population with those from conspecifics from 16 sites scattered across its native range show that the SwGoMx population is derived from two of four native lineages:...
Article
Full-text available
A review of collections of triplefin blennies of the genus Enneanectes from the tropical western Atlantic Ocean reveals a new species, Enneanectes quadra n. sp., belonging to the scaled-belly subgroup. The species is distinguished by a lightly marked head, a mostly square dark bar on the caudal peduncle that is much darker than the other body bars,...
Article
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The western and central Indian Ocean population of the fairy wrasse, Cirrhilabrus rubriventralis, is here split into three allopatric species: the type species from the Red Sea; C. rubeus, n. sp., a new central Indian Ocean species from Sri Lanka and the Maldives; and C. africanus n. sp., a new east African coastal species. The three species are ma...
Article
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The new labrid fish species, Pseudojuloides labyrinthus n. sp., is described from three specimens obtained via the aquarium trade from Kenya, in the western Indian Ocean. The species is similar in appearance to other Indo-Pacific Pseudojuloides in the P. severnsi complex, distinguished mainly by the markings of the terminal-phase male, which includ...
Article
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The new labrid fish species, Halichoeres gurrobyi n. sp., is described from specimens collected in Mauritius, in the southwestern Indian Ocean. The new species is part of the yellow-striped initial-phase species complex of Halichoeres, comprising several species found in the Indo-Pacific, including the type species for the genus Halichoeres Rüppell...
Article
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The following thirty-four new species of the pempherid fish genus Pempheris are described from the western Indian Ocean, raising the total number for the region to 47 species: P. andilana from northwest Madagascar; P. argyrea from the Seychelles; P. bineeshi from southeast India; P. bruggemanni from Réunion and Mauritius; P. connelli from KwaZulu-N...
Article
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Background: Barcode coverage is difficult to assess for large regions due to incomplete species lists, inaccurate identifications, and cryptic diversity. However, as coverage approaches completion, it becomes possible to critically evaluate identifications and validate barcode lineages. We collate the results of the FISH-BOL barcode project and ass...
Article
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The Indo-Pacific labrid fish genus Pseudocoris Bleeker is represented by nine species: three pairs of sibling species that split between the Indian and Pacific Oceans and three endemic to various parts of the Pacific Ocean. Two of the species pairs include a new species for the Indian Ocean sibling. Pseudocoris heteroptera (Bleeker) is now consider...
Article
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The new species, Pseudojuloides zeus, is described from two specimens obtained from Majuro Atoll in the Marshall Islands and Palau in Micronesia, western Pacific Ocean. The species is distinguished by two prominent jagged blue stripes along the body and a dark spot at the base of the mid-dorsal fin. P. zeus is a rarely seen fish, found only on part...
Article
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The new species Pseudojuloides polackorum is described from seven specimens collected off the east coast of South Africa and from near Mombasa, Kenya. The species closely resembles the widespread Indo-Pacific congener P. cerasinus Snyder 1904 and replaces it along the continental southwestern Indian Ocean, including Madagascar. The new species is d...
Chapter
The advent of large-scale DNA sequencing has reopened the question of how many species of coral reef fishes currently exist and challenged our preconceptions of the definition of species. While the majority of species are characterized by distinct mitochondrial DNA lineages (monophyletic sets of haplotypes), well separated from related species, the...
Article
Full-text available
Koeda et al. (2014) published a review of fishes of the genus Pempheris of the Red Sea. They concluded that there are four species: P. adusta Bleeker, P. mangula Cuvier, P. nesogallica Cuvier, and a new species, P. tominagai. We show that the first three species they cite are not present in the Red Sea, as follows. 1) P. adusta is a western Pacific...
Article
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A survey of the mitochondrial DNA marker COI for the gobies of the Cayman Islands reveals two categories of gobies: a set of genera that are no different genetically from other Caribbean populations, including Coryphopterus, Ctenogobius, Gnatholepis, and Priolepis, and a set of species that have local mtDNA lineages quite different from populations...
Article
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Four new species of pempherid fishes (common name sweepers) of the genus Pempheris are described: P. convexa from the south coast of Oman and the Maldives, unique in the convex dorsal profile of the head, small eye, and silver-gray color, and the scales rimmed with yellowish brown; P. cuprea from northern Mozambique with a deep body, low counts of...
Article
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The new species Pseudojuloides edwardi is described from aquarium-trade specimens obtained from the African coast near Mombasa, Kenya. The species is distinguished from its two sibling species, P. severnsi (from the Philippines, Indonesia, Japan, New Caledonia, and Sri Lanka) and P. erythrops (from Mauritius), by a spectacular yellow-on-magenta ret...
Article
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Working in the Galápagos Islands and surrounding areas, we examined the relationship between population structure, a precursor to allopatric speciation, in species of reef fishes that exhibit different life history traits and three types of distributions in a nested setting: endemic (restricted to the Galápagos Islands), insular (Galápagos and neig...
Article
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The new scorpionfish species Scorpaena wellingtoni is described from two specimens collected from Tagus Cove on Isla Isabela in the Galápagos Archipelago. The barcode COI mtDNA sequence for the holotype of the new species differs by 10.8–14.2% from other members of a set of small related New World scorpionfishes, including S. russula and S. sonorae...
Article
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Bodianus atrolumbus (Valenciennes 1839), a labrid fish of the southwest Indian Ocean (type locality Mauritius), was placed in the synonymy of B. perditio (Quoy & Gaimard), antitropical in the Pacific Ocean (type locality Tonga), by Smith (1949) who reported the first record for southern Africa. Juveniles of both species are mostly the same in color...
Article
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Some of the more valuable contributions of a standardized DNA sequence database (the DNA barcode) are matching specimens of different life stages and confirming the species identity of individuals from distant locations. These applications can facilitate the detective work required to solve difficult taxonomic problems. In this case, a match was ma...
Article
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Cryptic species with distinct DNA lineages and subtle morphological or marking differences are commonplace among some reef-fish families, especially the gobies and blennioids. Often the cryptic species correspond to sets of allopatric populations in species complexes long recognized by taxonomists as geographic variants (allospecies). However, rece...
Article
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A new flatfish, Citharichthys darwini n. sp., is described from the shores of Isla Isabela on the western side of the Galápagos Archipelago. Our recent collection from Tagus Cove in 1998 is the first record of the species on Isla Isabela since a series of specimens were collected at Tagus Cove and nearby by the Allan Hancock Expedition in 1934. C....
Article
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The species flock of hamlets of the genus Hypoplectrus from the coral reefs of the tropical western Atlantic contains more than a dozen morphs distinguished by color pattern alone. Thus far, they have been characterized by a high level of genetic uniformity, raising many questions about whether they represent true species, incipient species, or col...
Article
Analyses of daily otolith increment sequences in the bluehead wrasse, Thalassoma bifasciatum, from the San Blas Islands of Panama indicated that (1) the duration of the planktonic larval period of this species ranges from 38 to 78 d, (2) those larvae with extended larval durations reach settlement size at the same age as average individuals but the...
Article
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Specimens of Starksia were collected throughout the western Atlantic, and a 650-bp portion of the mitochondrial gene cytochrome oxidase-c subunit I (COl) was sequenced as part of a re-analysis of species diversity of western Central Atlantic shorefishes. A neighbor-joining tree constructed from the sequence data suggests the existence of several cr...
Article
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Two new sympatric chaenopsid blennies, Emblemariopsis carib and E. arawak, are described from coral reefs in Puerto Rico and the adjacent U.S. Virgin Islands. These species have been considered Flagfin Blennies, E. signifer (usually as E. signifera), which was originally described from mainland Brazil. However, COI mtDNA sequencing shows that despi...
Article
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Gramma dejongi is described as a new species of basslet from deep reefs off the town of Trinidad, along the southcentral coast of Cuba. The species is closely-related to the common and widespread Royal Gramma, G. loreto, but is distinguished by uniform yellow coloration on the head and body without stripes through the eye (vs. prominently bicolored...
Article
Full-text available
A new micro-endemic goby, Elacatinus rubrigenis, is described from Utila in the Bay Islands of the Gulf of Honduras (Western Atlantic). The new species is similar to the Greenbanded Goby, E. multifasciatus, but differs in having a prominent red stripe across the cheek, more-numerous green bars on the body, and 11 second-dorsal-fin elements (vs. equ...
Article
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Additional larval, juvenile, and adult specimens and live photographs of the Caribbean Kuna Goby, Coryphopterus kuna, expand the known geographic range for the species and allow a comprehensive description of all the life stages for this recently-discovered species, including age and growth estimates from daily otolith increments. The Kuna Goby is...
Article
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The larvae and newly-settled juveniles of the Cubera Snapper, Lutjanus cyanopterus, are identified by DNA barcoding. Four larvae and three small juveniles of L. cyanopterus were detected among a large collection of pelagic larvae and a smaller collection of settled juveniles from the Caribbean coast of Panama. The mtDNA COI barcode sequences from t...
Article
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A re-examination of the holotype and mtDNA barcoding confirms Garzon-Ferreira and Acero's separation of Coryphopterus tortugae from C. glaucofraenum. However, specimens matching the markings of their Santa Marta variant of C. tortugae comprise a distinct clade about 10% sequence divergent from true C. tortugae and C. glaucofraenum. The variant is d...
Article
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A new goby, Coryphopterus kuna, is described from the Atlantic coasts of Panama and Mexico. The species is distinguished from other Coryphopterus spp. by the low median fin and pectoral fin ray counts and the morphology of the pelvic fin. The pelvic fins are fully joined with a rounded outline and have branched and longer innermost pelvic fin rays....
Article
Relationships based on mtDNA and nDNA sequences were used to assess effects of two major geographic barriers (the >30 myo Atlantic ocean and the approximately 11 myo Amazon-Orinoco outflow) on speciation among Atlantic parrotfishes (Sparisoma and Nicholsina). Allopatric distributions of sister taxa implicate isolating actions of both barriers in al...
Article
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Permit, Trachinotus falcatus are economically and ecologically important throughout their range of the Caribbean, subtropical and tropical western Atlantic, and Gulf of Mexico. Despite their economic importance, little is known about the biology and ecology of permit, and most existing information is from Florida. While sufficient information is av...
Article
In marine organisms, a pelagic larval stage increases the opportunities for long-distance dispersal and is often associated with little genetic differentiation over large geographical distances. Here we test the hypothesis that early life-history characteristics, including larval spatial distributions, affect the rates of dispersal and, therefore,...
Article
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Several new species of the razorfish genus Xyrichtys have been discovered recently in the tropical eastern Pacific region. The taxonomy of this group of fishes is not clear, since juveniles, females, and males often have different color patterns and morphologies, and some species descriptions are incomplete. We review the members of this genus in t...
Article
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We surveyed the labrid fishes of the eastern Pacific ocean at multiple sites before, during, and after the 1997-98 ENSO event. Our observations showed that reef fish communities in general did not appear to change markedly as a result of the ENSO. Recruitment of labrids at the Galápagos Islands, Clipperton Atoll and Baja California was generally hi...
Article
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We examined the relationship between pelagic larval duration (PLD) and species range for the wrasses and damselfishes of the eastern Pacific Ocean. This region and these species are par- ticularly appropriate for this analysis, since there is huge variation in the biogeographic range among these reef fishes, from endemics to islands a few kilometer...
Article
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We examined the relationship between pelagic larval duration (PLD) and species range for the wrasses and damselfishes of the eastern Pacific Ocean. This region and these species are particularly appropriate for this analysis, since there is huge variation in the biogeographic range among these reef fishes, from endemics to islands a few kilometers...
Article
Several matrix metalloproteinases (interstitial collagenase, MMP-1, gelatinase, MMP-2, and stromelysin, MMP-3) have been reported to show increased expression in atherosclerotic plaques. It has been suggested that overexpression of activated MMPs may be responsible for plaque rupture. We investigated the expression of MMPs 1, 2, and 3 by standard i...
Chapter
Full-text available
Virtually all coral reef fishes undergo a profound transition from life as a Iarva adrift in the oceanic plankton to a settled existence closely associated with the coral reef structure. The importance of this transition for population dynamics and a variety of other aspects of the ecology of reef fishes is reviewed in other chapters. Despite the w...
Article
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Regional variation in the duration of the planktonic larval phase of three species of reef fishes, Thalassoma lucasanum (Labridae), Stegastes flavilatus, and Microspathodon dorsalis (Pomacentridae) was investigated between 1982 and 1991 at several sites in the tropical eastern Pacific over a distance of 3500 km, encompassing virtually their entire...
Article
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The plankton larval duration for 100 species of Pacific and Atlantic damselfishes was estimated from daily growth increments on the otolith of juvenile fish collected at various localities between July 1987 and September 1988. For newly-settled fishes, larval duration was determined by counting the entire number of increments present on the otolith...
Article
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The main issue we have attempted to address in this paper is whether resource based variation in reproductive success (excluding competition for mates through sexual selection) among individuals in a population necessarily arises only when populations approach their carrying capacity. We describe conditions under which differential reproductive suc...
Article
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Examined the relationship between temporal patterns of larval production and settlement of planktonic larvae of the damselfish Stegastes partitus and attributed any differences to processes acting in the plankton. Larvae were c5 wk old at settlement; there was low overall variability in age at settlement; there were no differences between the ages...
Article
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Planktonic larvae of six genera of labrid and pomacentrid reef fishes were captured in march 1985 in the eastern Pacific Ocean several hundred kilometers from the nearest reefs. The larvae were identified to genus by fin-ray counts as well as by comparison of their larval otolith morphology with that of known species. The larval otolith morphologie...
Article
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Rosy razorfish, Xyrichtys martinicensis, live in isolated colonies on extensive sandbeds in the San Blas Islands of Panama. The females in these colonies are members of contiguous harems, each of which is defended by a single large male. These fish are unusual among wrasses in that females are gregarious and extremely site-attached. It is proposed...
Article
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The temporal and spatial patterns of larval settlement of the-bluehead wrasse, Thalassoma bifasciatum, were documented in the San Blas Islands of Panama. Daily censuses indicated that larvae settle onto coral reefs in brief episodes that tended to occur around the new moon and peak in intensity between August and December of each year. The magnitud...
Article
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The planktonic larval durations of a preliminary sample of one hundred species of wrasses from both the Pacific and Atlantic Oceans were estimated with the use of the daily otolith-increment aging-technique. Larval durations were determined by counting the number of daily increments between the center of the otolith and the mark corresponding to se...
Article
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The mass mortality of reef corals in the eastern Pacific as a result of the 1982–1983 El Nio oceanographic anomaly permitted the first large scale test of resource limitation for a coral reef fish. Population densities of territorial herbivorous damselfish did not respond to the massive regional increase in space available for the cultivation of al...
Article
The daily pattern of settlement of larvae of the bluehead wrasse, Thalassoma bifasciatum, onto a number of coral reefs was reconstructed with the daily otolith increment aging technique. Larvae settled simultaneously onto reefs within an area of about 1,000 km2. The planktonic patch size of bluehead wrasse is inferred to be at least 46 km wide. Lar...
Article
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Daily otolith increments were used to determine the daily pattern of settlement of the bluehead wrasse (Thalassoma bifasciatum), a Caribbean coral reef fish. Recruitment occurs in brief and sporadic episodes even though bluehead wrasses spawn every day. Patterns of recruitment do not correspond to patterns of mortality on the reef. The composition...
Article
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Early in the sequence of daily increments on wrasse otoliths there is a transition from clear increments to a band of very faint, often indecipherable, wide increments. After about five of these wide increments clear increments resume. Planktonic larvae do not have the transition on the edge of their otoliths, while newly-metamorphosed juveniles ha...
Article
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Increments on the otoliths of two common coral reef fishes, the bluehead wrasse Thalassoma bifasciatum and the slippery dick Halichoeres bivittatus, were demonstrated by mark-recapture experiments to be daily. Otoliths were marked in two ways; by depriving fish of light, food, and temperature cycles and also by supplemental feeding in the field. Bo...
Article
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Daily increments were found in the otoliths of the fallfish Semotilus corporalis from three stream populations in central New York. By counting these increments one can verify annual marks and validate other less precise methods of aging. Results suggested that a false first annulus was observed in the only previous study of fallfish age and growth...

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Projects (2)