Spirocamallanus species of French Polynesian coral reef fishes

1997 ◽  
Vol 75 (8) ◽  
pp. 1270-1279 ◽  
Author(s):  
Mark C. Rigby ◽  
Martin L. Adamson
Keyword(s):  
Coral Reef ◽  
Ecological Factors ◽  
Buccal Capsule ◽  
Reef Fishes ◽  
French Polynesia ◽  
New Host ◽  
Society Islands ◽  
Single Clade ◽  
Taxonomic Importance ◽  
New Host Records

Spirocamallanus monotaxis is redescribed from Monotaxis grandoculis (Lethrinidae) and reported from 10 other species of coral reef associated fishes from both the Society Islands and the Tuamotu Islands. This represents a new locality for S. monotaxis and 10 new host records. Spirocamallanus colei n.sp. is described from Acanthurus achilles (Acanthuridae) and from Acanthurus guttatus, Acanthurus lineatus, Acanthurus triostegus, and Zebrasoma scopas from both the Society Islands and the Tuamotu Islands. Spirocamallanus chaimha n.sp. is described from Ctenochaetus striatus and Acanthurus olivaceous (Acanthuridae) from Moorea in the Society Islands. The number of buccal capsule ridges in Spirocamallanus varies and minor differences have no taxonomic importance. Marine Spirocamallanus species appear to belong to a single clade characterized by 3 preanal papillae and 5 postanal papillae. This clade may be subdivided on the basis of the shape of the female tail. In French Polynesia, ecological factors as opposed to phylogenetic factors appear to determine host specificity for Spirocamallanus. A new system of reporting the positions of the caudal papillae, based on the position of the papillae relative to the length of the alae, is used.

scholarly journals A DNA barcode reference library of the French Polynesian shore fishes

2019 ◽  
Author(s):  
Erwan Delrieu-Trottin ◽  
Jeffrey T. Williams ◽  
Diane Pitassy ◽  
Amy Driskell ◽  
Nicolas Hubert ◽  
...  
Keyword(s):  
Dna Barcoding ◽  
Biological Diversity ◽  
Dna Barcode ◽  
Reef Fishes ◽  
French Polynesia ◽  
Morphological Characters ◽  
Reference Library ◽  
Society Islands ◽  
Extensive Collection ◽  
I Gene

AbstractThe emergence of DNA barcoding and metabarcoding opened new ways to study biological diversity, however, the completion of DNA barcode libraries is fundamental for such approaches to succeed. This dataset is a DNA barcode reference library (fragment of Cytochrome Oxydase I gene) for 2,190 specimens representing at least 540 species of shore fishes collected over 10 years at 154 sites across the four volcanic archipelagos of French Polynesia; the Austral, Gambier, Marquesas and Society Islands, a 5,000,000 km2area. At present, 65% of the known shore fish species of these archipelagoes possess a DNA barcode associated with preserved, photographed, tissue sampled and cataloged specimens, and extensive collection locality data. This dataset represents one of the most comprehensive DNA barcoding efforts for a vertebrate fauna to date. Considering the challenges associated with the conservation of coral reef fishes and the difficulties of accurately identifying species using morphological characters, this publicly available library is expected to be helpful for both authorities and academics in various fields.

scholarly journals Infection patterns of helminths in Norops brasiliensis (Squamata, Dactyloidae) from a humid forest, Northeastern Brazil and their relation with body mass, sex, host size, and season

2019 ◽  
Vol 56 (2) ◽  
pp. 168-174 ◽  
Author(s):  
D. M. Amorim ◽  
R. W. Ávila
Keyword(s):  
Body Size ◽  
Ecological Factors ◽  
Parasite Load ◽  
Helminth Fauna ◽  
Northeastern Brazil ◽  
Rainfall Regime ◽  
New Host ◽  
Humid Forest ◽  
Host Sex ◽  
New Host Records

SummaryClimatic and ecological factors can influence the parasite load of a host. Variation in rainfall, body size, and sex of the hosts may be related to the abundance of parasites. This study investigated the helminth fauna associated with a population of Norops brasiliensis, together with the effect of host biology (sex, body size, and mass) and variation in rainfall regime on the abundance of helminths. Species of three groups of endoparasites were found (Nematoda, Cestoda, and Trematoda), with nematodes as the most representative taxa with eight species, prevalence of 63.2 %, mean intensity of 4.0 ± 0.58 (1 – 25), and mean abundance of 2.66 ± 0.44 (0 – 25). Nine helminth species are new host records for N. brasiliensis. The nematode Rhabdias sp. had the highest prevalence (53.3 %). There was no significant relationship between abundance of the trematode Mesocoelium monas and host sex or season, although the abundance of this parasite increased significantly with host body size and mass, while abundance of nematodes was related to season and host mass. This study increases the knowledge about the diversity of helminth fauna associated with N. brasiliensis, revealing infection levels of hosts from northeastern Brazil.

Effects of COVID-19 pandemic restrictions on coral reef fishes at eco-tourism sites in Bora-Bora, French Polynesia

2021 ◽  
Vol 170 ◽  
pp. 105451
Author(s):  
David Lecchini ◽  
Rohan M. Brooker ◽  
Viliame Waqalevu ◽  
Emma Gairin ◽  
Lana Minier ◽  
...  
Keyword(s):  
Coral Reef ◽  
Reef Fishes ◽  
French Polynesia ◽  
Coral Reef Fishes

Endoparasite species richness of New Caledonian butterfly fishes: host density and diet matter

Parasitology ◽  
2000 ◽  
Vol 121 (1) ◽  
pp. 65-73 ◽  
Author(s):  
S. MORAND ◽  
T. H. CRIBB ◽  
M. KULBICKI ◽  
M. C. RIGBY ◽  
C. CHAUVET ◽  
...  
Keyword(s):  
Species Richness ◽  
Coral Reef ◽  
Parasite Species ◽  
New Caledonia ◽  
Ecological Factors ◽  
Host Density ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Ancestral State ◽  
Parasite Species Richness

Ecological factors may influence the number of parasites encountered and, thus, parasite species richness. These factors include diet, gregarity, conspecific and total host density, habitat, body size, vagility, and migration. One means of examining the influence of these factors on parasite species richness is through a comparative analysis of the parasites of different, but related, host species. In contrast to most comparative studies of parasite species richness of fish, which have been conducted by using data from the literature, the present study uses data obtained by the investigators. Coral reef fishes vary widely in the above ecological factors and are frequently parasitized by a diverse array of parasites. We, therefore, chose to investigate how the above ecological factors influence parasite species richness in coral reef fishes. We investigated the endoparasite species richness of 21 species of butterfly fishes (Chaetodontidae) of New Caledonia. We mapped the diet characters on the existing butterfly fish phylogeny and found that omnivory appears to be ancestral. We also mapped the estimated endoparasite species richness, coded from low to high parasite species richness, on the existing butterfly fish phylogeny and found that low parasite species richness appears to be associated with the ancestral state of omnivory. Different dietary and social strategies appear to have evolved more than once, with the exception of obligate coralivory, which appears to have evolved only once. Finally, after controlling for phylogenetic relationships, we found that only the percentage of plankton in the diet and conspecific host density were positively correlated with endoparasite species richness.

Identifying carbon sources and trophic position of coral reef fishes using diet and stable isotope (δ15N and δ13C) analyses in two contrasted bays in Moorea, French Polynesia

Coral Reefs ◽  
2013 ◽  
Vol 32 (4) ◽  
pp. 1091-1102 ◽  
Author(s):  
Y. Letourneur ◽  
T. Lison de Loma ◽  
P. Richard ◽  
M. L. Harmelin-Vivien ◽  
P. Cresson ◽  
...  
Keyword(s):  
Coral Reef ◽  
Stable Isotope ◽  
Trophic Position ◽  
Carbon Sources ◽  
Reef Fishes ◽  
French Polynesia ◽  
Coral Reef Fishes ◽  
Δ15n And Δ13c

scholarly journals Unexpected high vulnerability of functions in wilderness areas: evidence from coral reef fishes

2016 ◽  
Vol 283 (1844) ◽  
pp. 20160128 ◽  
Author(s):  
Stéphanie D'agata ◽  
Laurent Vigliola ◽  
Nicholas A. J. Graham ◽  
Laurent Wantiez ◽  
Valeriano Parravicini ◽  
...  
Keyword(s):  
Species Richness ◽  
Coral Reef ◽  
Fish Assemblages ◽  
New Caledonia ◽  
Reef Fishes ◽  
French Polynesia ◽  
Ecosystem Functions ◽  
Large Species ◽  
Wilderness Areas ◽  
High Species Richness

High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might perform unique functional roles while others are redundant. Thus, the benefits of high species richness in maintaining ecosystem functioning are uncertain if functions have little redundancy, potentially leading to high vulnerability of functions. We studied the natural propensity of assemblages to be functionally buffered against loss prior to fishing activities, using functional trait combinations, in coral reef fish assemblages across unfished wilderness areas of the Indo-Pacific: Chagos Archipelago, New Caledonia and French Polynesia. Fish functional diversity in these wilderness areas is highly vulnerable to fishing, explained by species- and abundance-based redundancy packed into a small combination of traits, leaving most other trait combinations (60%) sensitive to fishing, with no redundancy. Functional vulnerability peaks for mobile and sedentary top predators, and large species in general. Functional vulnerability decreases for certain functional entities in New Caledonia, where overall functional redundancy was higher. Uncovering these baseline patterns of functional vulnerability can offer early warning signals of the damaging effects from fishing, and may serve as baselines to guide precautionary and even proactive conservation actions.

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