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35 results for “Siganidae”
FIGURE 3 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 3. Phylogram of relationships between host/location combinations sequenced here; inferred by distance analysis (HKY 85 (Hasegawa, Kishino & Yano, 1985)) of complete ITS2 rDNA sequence data. Figures in parentheses indicate the number of replicate sequences obtained for each combination. Phylogram not rooted as intended taxa for outgroup comparisons, A. mariae, is embedded with sanguinicolids from Siganus argenteus, S. doliatus and S. fuscescens. Nodal support based on bootstrapping (percentage for 1000 replicates). Legend: (A). Phthinomita brooksi n. sp.; (B). P. sasali n. sp.; (C). P. ingramae n. sp.; (D). Phthinomita sp. A; (E). Phthinomita sp. B; (F). P. munozae n. sp.; (G). P. poulini n. sp.; (H). P. jonesi n. sp.; (I). P. hallae n. sp.; (J). P. littlewoodi n. sp.; (K). P. symplocos n. sp.; (L). P. robertsthomsoni n. sp.; (M). P. adlardi n. sp.; (N). Phthinomita sp. C; (O). Ankistromeces mariae; (P). Ankistromeces sp. X; (Q). A. olsoni n. sp.; (R). Ankistromeces sp. Y; (S). Ankistromeces sp. Z; (T). A. dunwichensis n. sp. Note: asterisk sets (*, **, ***, ****, *****) indicate pairs or triplets of sanguinicolid species from the same host/ location combination.
FIGURE 7. A,B in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 7. A,B. Variation in distribution of vitelline follicles (in black) relative to intestinal bifurcation. Arrow "a" indicates intestinal bifurcation. Scalebars: 250 m.
FIGURE 2 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 2. Phylogram of relationships between replicate sequences of Phthinomita littlewoodi, P. jonesi and P. hallae inferred by distance analysis (HKY85). Phylogram rooted at midpoint. There were no base differences between replicate sequences for each species; sequences were obtained from different sympatric species (P. jonesi and P. hallae) and different host species from different geographical locations (P. littlewoodi). Phthinomita littlewoodi was consistently distinguished from P. jonesi by a single base difference (0.3% sequence divergence) and from P. hallae by four base differences (1.1% sequence divergence) in ITS2. Phthinomita jonesi and P. hallae were consistently distinguished by three base differences (0.8% sequence divergence).
FIGURES 18–22. Phthinomita symplocos n. g., n in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURES 18–22. Phthinomita symplocos n. g., n. sp. 18. Whole mount, lateral view. 19,20. Vestigial oral sucker bearing 5 concentric rows of fine spines. 21. Tegumental spines in incomplete transverse rows; spines covered in tegument or mucus. Run entire length of the body. 22. Disturbed tegumental layer showing uncovered tegumental spines. Scalebars: 18, 100 m; 19–21, 1 m; 22, 10 m.
FIGURES 15–17. Phthinomita symplocos n. g., n in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURES 15–17. Phthinomita symplocos n. g., n. sp. from the intertrabecular spaces of the ventricle (heart) of Siganus lineatus off Lizard Island. 15. Adult. Lateral view, whole mount. 16. Male terminal genitalia, lateral view. 17. Female terminal genitalia, lateral view. Scalebars: 15, 250 m; 16,17, 100 m.
FIGURES 12–14. Ankistromeces olsoni n in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURES 12–14. Ankistromeces olsoni n. sp. from atrium (heart) of Siganus fuscescens off Heron Island. 12. Adult. Lateral view. whole mount. 13. Male terminal genitalia, dorsal view. 14. Female terminal genitalia, lateral view. Oviduct not observed in single specimen. Scalebars: 12,14, 250
FIGURE 5 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 5. Variation in position of anterior testis relative to posterior caeca. A. Anterior margin of anterior testis intercaecal. B. Anterior margin of anterior testis posterior to posterior caeca. C. Anterior margin of anterior testis anterosinistral to distal termination of right posterior caecum. Arrow "a" indicates anterior margin of testis, arrow "b" indicates posterior end intercaecal field. Arrow "c" indicates termination of right posterior caecum. Scalebars: 250 m.
FIGURE 6 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 6. Shape of the cirrussac and the distinctness of the notch in the dorsal body curve level with male genital pore. A. Phthinomita brooksi n. sp. from S. virgatus from Ningaloo Reef. B. Phthinomita ingramae n. sp. from S. punctatus off Lizard Island. Scalebars: 100 m.
FIGURE 4 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 4. Whole mounts of threadlike sanguinicolids reported here together with Ankistromeces mariae for comparison. All drawings to scale. A. Ankistromeces mariae. B. A. dunwichensis n. sp. C. A. olsoni n. sp. D. Phthinomita symplocos n. sp. E. P. adlardi n. sp. F. P. brooksi n. sp. G. P. hallae n. sp. H. P. ingramae n. sp. I. P. jonesi n. sp. J. P. littlewoodi n. sp. K. P. robertsthomsoni n. sp. L. P. sasali n. sp. M. P. munozae n. sp. N. P. poulini n. sp. Scalebars: A, 500 m; B–N, 250
FIGURE 1. ITS2 sequence alignment for threadlike sanguinicolids. Where identical ITS2 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 1. ITS2 sequence alignment for threadlike sanguinicolids. Where identical ITS2 sequences were obtained for sanguinicolids from different host/location combinations only one sequence has been included here. Gaps of five spaces delineate the 5' and 3' ends of ITS2 (and subsequent 3' end of 5.8S and the 5' end of 28S).
FIGURES 9–11. Ankistromeces dunwichensis n in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURES 9–11. Ankistromeces dunwichensis n. sp. from intertrabecular spaces of ventricle and atrium (heart) of Siganus fuscescens off North Stradbroke Island. 9. Adult. Dorsal anteriorly, medially twisting laterally at level of "arrow a", ventral side to the right, whole mount. 10. Male terminal genitalia, lateral view. 11. Female terminal genitalia, lateral view. Vitelline duct omitted as obscures path of proximal uterus. Oviduct not observed in single specimen. Scalebars: 9,11, 250
Data from: Why pair? Evidence of aggregative mating in a socially monogamous marine fish (Siganus doliatus, Siganidae)
Many species live in stable pairs, usually to breed and raise offspring together, but this cannot be assumed. Establishing whether pairing is based on mating, or an alternative cooperative advantage, can be difficult, especially where species show no obvious sexual dimorphism and where the act of reproduction itself is difficult to observe. In the tropical marine fishes known as rabbitfish (Siganidae), half of extant species live in socially monogamous, territorial pairs. It has been assumed that partnerships are for mating, but the reproductive mode of pairing rabbitfish is currently unconfirmed. Using passive acoustic telemetry to track movements of fishes belonging to one such species (Siganus doliatus), we provide the first evidence that paired adult fish undertake highly synchronized migrations with multiple conspecifics on a monthly cycle. All tagged individuals migrated along the same route in three consecutive months and were absent from home territories for 2–3 days just after the new moon. The timing and directionality of migrations suggest that S. doliatus may form spawning aggregations, offering the potential for exposure to multiple reproductive partners. The finding raises fundamental questions about the basis of pairing, mate choice and partnership longevity in this family.
FIGURE 1 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 1 (continued). ITS2 sequence alignment for threadlike sanguinicolids.
FIGURE 1 in An exceptionally rich complex of Sanguinicolidae von Graff, 1907 (Platyhelminthes: Trematoda) from Siganidae, Labridae and Mullidae (Teleostei: Perciformes) from the Indo-west Pacific Region
FIGURE 1 (continued). ITS2 sequence alignment for threadlike sanguinicolids.
Data from: Why pair? Evidence of aggregative mating in a socially monogamous marine fish (Siganus doliatus, Siganidae)
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