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320 results for “Cyprinid”
PSC01 Exploring effects on stream ecosystem properties by two size classes of prairie stream cyprinids
Losses in freshwater fish diversity might produce a loss in important ecological services provided by fishes in particular habitats. An important gap in our understanding of ecosystem services by fishes is the influence of individuals from different size classes, which is predicted based on known ontogenetic shifts in habitat and diet. I used twenty experimental stream mesocosms located on Konza Prairie Biological Station (KPBS), KS, USA to assess the influence of fish size on ecosystem properties. Mesocosms included two macrohabitats: one riffle upstream from one pool filled with consistent pebble and gravel substrate. There were four experimental and one control treatment, each replicated four times (N = 20). I used two size classes of Central Stonerollers (Campostoma anomalum) and Southern Redbelly Dace (Chrosomus erythrogaster). Five ecosystem properties were assessed: algal filament length (cm), benthic chlorophyll a (µg/cm2), benthic organic matter (g/m2), macroinvertebrate biomass (g/m2), and stream metabolism (g O2/m2/day1). Size structure of fish populations affected some, but not all, ecosystem properties and these effects were dependent upon species identity. Size structure of both species had effects on algal filament lengths where stonerollers of both size classes reduced algal filaments, but only small redbelly dace kept filaments short. A better understanding of the relationship between these prairie stream minnows and their small stream habitats could be useful to both predict changes in stream properties if species are lost or size structure shifts, and to redbelly dace populations, a Species In Need of Conservation.
Figure 2 in Alburnoides qanati, a new species of cyprinid fish from southern Iran (Actinopterygii, Cyprinidae)
Figure 2. Alburnoides qanati sp. n., radiograph of a paratype, SL 58 mm SL. Arrow shows first caudal vertebra.
Figure 3 in Alburnoides qanati, a new species of cyprinid fish from southern Iran (Actinopterygii, Cyprinidae)
Figure 3. Map showing the type locality of Alburnoides qanati sp. n.: Pulvar River system, 29°59'30"N, 52°54'E.
Fig. 5 in Brevibora Cheeya, A New Species Of Cyprinid Fish From Malay Peninsula And Sumatra
Fig. 5: Map of Sumatra and Malay Peninsula showing the distribution of Brevibora cheeya (square; hollow symbol denotes the type locality) and B. dorsiocellata from comparative material (triangle; hollow symbol denotes the type locality).
Fig. 4 in Brevibora Cheeya, A New Species Of Cyprinid Fish From Malay Peninsula And Sumatra
Fig. 4: Brevibora cheeya. ZRC 39158, 11.4 mm SL; Indonesia: Jambi Province: Berbak Nature reserve, Sungai Air Hitam Dalam.
Fig. 3 in Brevibora Cheeya, A New Species Of Cyprinid Fish From Malay Peninsula And Sumatra
Fig. 3: Brevibora cheeya. ZRC 51965, holotype, 26.6 mm SL; Malaysia: Terengganu, Rantau Abang, 56 km to Kuala Terengganu.
Fig. 2 in Brevibora Cheeya, A New Species Of Cyprinid Fish From Malay Peninsula And Sumatra
Fig. 2: Points used in measurements of rasborins species. 1, Standard length (SL): A-N, from tip of upper jaw to end of hypural plate. 2, Total length (SL): A-H, from tip of upper jaw to tip of upper caudal-fin lobe. 3, Head length: A-E, from tip of upper jaw to posterior edge of opercle. 4, Head depth: at level of posterior margin of orbit (D). 5, Orbital diameter: B-D, between horizontal margins of osseous orbit. 6, Snout length: A-B, from tip of upper jaw to anterior margin of osseous orbit. 7, Interorbital width: distance between upper margins (C) of each osseous orbit. 8, Predorsal length: A-F, from tip of upper jaw to dorsal-fin origin. 9, Preanal length: A-K: from tip of upper jaw to anal-fin origin. 10, Prepectoral length: A-I, from tip of upper jaw to pectoral-fin origin. 11, Prepelvic length: A-J, from tip of upper jaw to pelvicfin origin. 12, Dorsal hypural length: F-N, from anterior edge of dorsal-fin insertion to end of hypural plate. 13, Body depth: at level of dorsal fin origin (F). 14, Caudal peduncle length: L-N, from end of anal-fin base to end of hypural plate. 15, Caudal peduncle depth: narrowest part of caudal peduncle (G-M).
Fig. 1 in Brevibora Cheeya, A New Species Of Cyprinid Fish From Malay Peninsula And Sumatra
Fig. 1: Brevibora dorsiocellata. ZRC 42313, 22.7 mm SL; Indonesia: Sumatra: Jambi: Sungai Alai: 19.5 km to Muara Tebo from Muara Bungo.
Neglected patterns of variation in transgenerational plasticity: The importance of different sources of environmental variation differs across ages and sexes in a cyprinid fish
<p>Adaptive transgenerational plasticity (TGP) requires individuals to integrate environmental experience across multiple sources. However, few empirical studies have considered that the relative relevance of certain sources might vary across ontogeny and sexes.</p> <p>Here, we address this knowledge gap by studying inducible antipredator defenses, one of the most convincing examples of TGP. We assessed individual and combined effects of perceived high predation risk in mothers, fathers, caring males and personal environments on the morphology of juvenile, adult male and adult female cyprinids Pimephales promelas.</p> <p>Parental rather than personal environmental experience determined morphological defense expression across ages and sexes, likely because parents had a longer sampling period.</p> <p>In juveniles and adult males, egg-mediated environmental experience outweighed sperm-mediated environmental experience in the induction of body shape differences, likely because eggs can transmit information beyond epigenomes. However, in adult females, where body shape responses can be interpreted as life-history plasticity, information from egg and sperm were equally important, likely resulting from different integration mechanisms between morphological and life-history plasticity.</p> <p>The importance of care-mediated relative to gamete-mediated variation changed between juveniles and adult males, likely because they represent short- and long-term environmental experience, respectively. Instead, in adult females, both sources were again equally important, potentially owing to lag-times of life-history plasticity. Parental care intensity only contributed marginally to defense formation.</p> <p>These results highlight age- and sex-specific prioritization of different environmental experiences so as to generate optimal phenotypes.</p>
Figure 2 in Parapsilorhynchus odishaensis, a new cyprinid fish (Teleostei: Cyprinidae) from Odisha, India
Figure 2. Ventral view of head: a. Parapsilorhynchus odishaensis (ZSI FF 4626), paratype; b. P. tentaculatus (ZSI F 9695/1); c. P. discophorus (ZSI–WRC P/3360).
Figure 1 in Garra chindwinensis, a new species of cyprinid fish (Teleostei: Cypriniformes) from Manipur, Northeastern India
Figure 1. Garra chindwinensis sp. nov. (Holotype, ZSI FF 5906, 120 mm SL). (a). dorsal view, (b). lateral view, (c). ventral view.
Figure 2 in Garra chindwinensis, a new species of cyprinid fish (Teleostei: Cypriniformes) from Manipur, Northeastern India
Figure 2. Head of Garra chindwinensis showing proboscis (Holotype, ZSI FF 5906, 120 mm SL). (a). dorsal view; (b). lateral view.
Fig. 3. Tracheliastes sachalinensis Markevich, 1936 in First Records of Tracheliastes sachalinensis (Copepoda: Lernaeopodidae), a Fin Parasite of Cyprinids, from Japan
Fig. 3. Tracheliastes sachalinensis Markevich, 1936, adult female from Tribolodon sachalinensis in the Jirô-sawa River, Hokkaido. A, first antenna, medial; B, second antenna, lateral; C, same, tip of endopod, lateral; D, mandible, lateral; E, first maxilla, lateral; F, bulla and tips of second maxillae, dorsal; G, maxilliped, dorsal. 1, endopod of second antenna; 2, exopod of second antenna; 3, anchor; 4, manubrium. Scale bars: A–D, G, 20 µm; E, 10 µm; F, 0.2 mm.
Fig. 1 in First Records of Tracheliastes sachalinensis (Copepoda: Lernaeopodidae), a Fin Parasite of Cyprinids, from Japan
Fig. 1. Distribution records of Tracheliastes sachalinensis Markevich, 1936 in Far East Asia. Collection localities (solid circles) in this study (Hokkaido: 1, Lake Abashiri; 2, Lake Shirarutoro; 3, Lake Tôro; 4, Mena River; 5, Jirô-sawa River); type locality of Tra. sachalinensis (solid triangle) (Sakhalin: 6, Tym River [Markevich 1936]); collection localities (open circles) in the previous studies (Sakhalin: 7, Aslanbekova Passage; 8, Poronai River (including the Leonidovka River); 9. Uglegorka River; 10. Tatar Strait at Lomonon Cape; 11, Ainskoye Lake; 12, Naiva River; 13. Mal Takoy River; 14. Lake Tunaycha; 15, Vavaiskoe Lake; 16, Lebyazh'ye Lake [Shedko et al. 2005; Sokolov et al. 2012]; the Shantar Islands: 17, Bol'shoye Lake [Shedko et al. 2005]; the Primorsky Krai: 18, Koppi River; 19, Samarga River; 20, Amgu River [Shedko et al. 2005]). The species was also reported from the Amur River basin (Dogiel and Akhmerov 1952) including Lake Khivanda (Smirnova 1971), but this lake is not shown herein because its location was not determined.
Fig. 2. Dactylogyrus petruschewskyi Gussev, 1955 in Redescription of Dactylogyrus petruschewskyi Gussev, 1955 (Monogenea: Dactylogyridae), a Newly Recorded Alien Monogenean from an Alien Cyprinid, Megalobrama amblycephala Yih, 1955 (Cypriniformes: Cyprinidae), in Ibaraki Prefecture, Central Japan
Fig. 2. Dactylogyrus petruschewskyi Gussev, 1955. NSMT-Pl 6452. Sclerotized structures. Abbreviations: ap, accessory piece; DB, dorsal bar; DH, dorsal hamulus; I, marginal hook of pair I; II, marginal hook of pair II; III, marginal hook of pair III; IV, marginal hook of pair IV; MCOd, male copulatory organ, normal type (dorsal view); MCOt, male copulatory organ, two-rod type (Anonymous 1973) (dorsal view); MCOv, male copulatory organ, normal type (ventral view); N, needle; p, penis; VB, ventral bar; VBc, ventral bar with circular holes; V, marginal hook of pair V; VI, marginal hook of pair VI; VII, marginal hook of pair VII.
Fig. 6 in Regular Intergeneric Hybridization Of Leuciscine Cyprinids (Cyprinidae, Leuciscinae) In The Dnipro River Affluents
Fig. 6. Electrophoregram of muscle structure proteins spectra of A. brama (1); R. rutilus (2), and their hybrids A. brama × R. rutilus (3).
Fig. 2 in Regular Intergeneric Hybridization Of Leuciscine Cyprinids (Cyprinidae, Leuciscinae) In The Dnipro River Affluents
Fig. 2. Electrophoregram of muscle structure proteins spectra of A. alburnus (1), S. erythrophthalmus (2), and their hybrids A. alburnus × S. erythrophthalmus (3).
Fig. 1 in Regular Intergeneric Hybridization Of Leuciscine Cyprinids (Cyprinidae, Leuciscinae) In The Dnipro River Affluents
Fig. 1. Phenogram of genetic distances (Nei's D) between the studied species of cyprinids, UPGMA algorithm on the basis of 15 biochemical loci.
Fig. 8 in Barbodes pyrpholeos, new species, the first cave-dwelling cyprinid fish in the Philippines, with redescription of B. montanoi (Teleostei: Cyprinidae)
Fig. 8. Barbodes pyrpholeos (left), 104.1 mm SL, showing smooth last unbranched dorsal-fin ray (damaged, broken mid-way but healed); Barbodes montanoi (right), 62.8 mm SL, showing last unbranched dorsal-fin ray with weak serrations. (Images by Tan Heok Hui)
Fig. 17 in Barbodes pyrpholeos, new species, the first cave-dwelling cyprinid fish in the Philippines, with redescription of B. montanoi (Teleostei: Cyprinidae)
Fig. 17. Barbodes everetti, Sarawak: Poeh, ZRC 54289. Top: 72.0 mm SL; bottom: 17.8 mm SL (to scale). (Photographs by Tan Heok Hui)
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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