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Functional Diversity of the Lateral Line System Among Populations of a Native Australian Freshwater Fish Lindsey Spiller1, Pauline F
© 2017. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2017) 220, 2265-2276 doi:10.1242/jeb.151530 RESEARCH ARTICLE Functional diversity of the lateral line system among populations of a native Australian freshwater fish Lindsey Spiller1, Pauline F. Grierson1, Peter M. Davies2, Jan Hemmi1,3, Shaun P. Collin1,3 and Jennifer L. Kelley1,* ABSTRACT Montgomery, 1999b; Bleckmann and Zelick, 2009; Montgomery Fishes use their mechanoreceptive lateral line system to sense et al., 1997). Correspondingly, ecological variables such as nearby objects by detecting slight fluctuations in hydrodynamic predation pressure (McHenry et al., 2009), habitat (Beckmann motion within their immediate environment. Species of fish from et al., 2010; Vanderpham et al., 2013) and water velocity (Wark and different habitats often display specialisations of the lateral line Peichel, 2010) may partly explain the diversity in lateral line system, in particular the distribution and abundance of neuromasts, morphology that is often observed in species occupying different but the lateral line can also exhibit considerable diversity within a habitats. species. Here, we provide the first investigation of the lateral line The functional link between lateral line morphology, habitat system of the Australian western rainbowfish (Melanotaenia variation and behaviour remains very poorly understood. For australis), a species that occupies a diversity of freshwater habitats example, while it is clear that the lateral line is used by larval across semi-arid northwest Australia. We collected 155 individuals zebrafish to respond to suction-feeding predators (McHenry et al., from eight populations and surveyed each habitat for environmental 2009), only one study has shown that exposure to environmental factors that may contribute to lateral line specialisation, including cues, such as predation risk, can affect the development of the lateral water flow, predation risk, habitat structure and prey availability. -
Susquhanna River Fishing Brochure
Fishing the Susquehanna River The Susquehanna Trophy-sized muskellunge (stocked by Pennsylvania) and hybrid tiger muskellunge The Susquehanna River flows through (stocked by New York until 2007) are Chenango, Broome, and Tioga counties for commonly caught in the river between nearly 86 miles, through both rural and urban Binghamton and Waverly. Local hot spots environments. Anglers can find a variety of fish include the Chenango River mouth, Murphy’s throughout the river. Island, Grippen Park, Hiawatha Island, the The Susquehanna River once supported large Smallmouth bass and walleye are the two Owego Creek mouth, and Baileys Eddy (near numbers of migratory fish, like the American gamefish most often pursued by anglers in Barton) shad. These stocks have been severely impacted Fishing the the Susquehanna River, but the river also Many anglers find that the most enjoyable by human activities, especially dam building. Susquehanna River supports thriving populations of northern pike, and productive way to fish the Susquehanna is The Susquehanna River Anadromous Fish Res- muskellunge, tiger muskellunge, channel catfish, by floating in a canoe or small boat. Using this rock bass, crappie, yellow perch, bullheads, and method, anglers drift cautiously towards their toration Cooperative (SRFARC) is an organiza- sunfish. preferred fishing spot, while casting ahead tion comprised of fishery agencies from three of the boat using the lures or bait mentioned basin states, the Susquehanna River Commission Tips and Hot Spots above. In many of the deep pool areas of the (SRBC), and the federal government working Susquehanna, trolling with deep running lures together to restore self-sustaining anadromous Fishing at the head or tail ends of pools is the is also effective. -
Muskellunge: a Michigan Resource
Muskellunge: A Michigan Resource The muskellunge, or musky, is a tremendous game fish native to the lakes and streams of Michigan. The musky also is a fish of many myths regarding its’ appetite, size and elusiveness. The stories about muskies portray a fish feeding on anything that moves and can fit down their tooth-filled jaws…yet believed to be so difficult to catch that the musky is called “the fish of 10,000 casts.” Here, we briefly explore the mythical, legendary and genuine muskellunge. IDENTIFICATION Muskellunge are members of the esocid family of fish, which also includes the northern pike. This particular family of fish, technically called Esocidae, share similar characteristics such as long thin bodies and soft-rayed fins. These fish have large mouths full of sharp teeth. Muskellunge and pike are identified as piscivores, which means their primary diet is fish. Though similar in appearance, muskellunge tend to achieve larger sizes than northern pike. The musky’s coloration is one of dark stripes, or dark spots, on a light background. Northern pike, in contrast, usually have light, bean-shaped spots on a dark background. The shape of the tail fin is a good method of identification as a musky’s is pointed and the tail fin of a pike is rounded. Another key characteristic for identification is the presence or absence of scales on the cheeks and gill covers. Muskies only have scales on the upper half of the cheek and gill cover. Like the muskellunge, the northern pike gill cover has scales on the upper half, but the cheek is fully scaled. -
Cowanesque Lake Tioga County
Pennsylvania Fish & Boat Commission Biologist Report Cowanesque Lake Tioga County 2017 Crappie Survey Area 4 biologists used trap nets to sample crappies at Cowanesque Lake during the week of May 1, 2017. Our goal was to determine how the Crappie population responded to Alewife invasion. We set 9 trap nets that caught 619 Black Crappie and 30 White Crappie. The Black Crappie ranged from 2.0 to 14.9 inches long (Figure 1). Most were small but 18 individuals (3%) exceeded 10 inches. Most likely, the presence of Alewife influences Black Crappie size distribution at Cowanesque Lake. When small, Crappies have a hard time competing with Alewife for planktonic food and so grow slowly. This process accounts for the high percentage of small fish in the population. However, once an individual gets large enough to feed on Alewife, its growth rate rapidly increases. This process accounts for the low percentage of large fish in the population. White Crappie was a new species record for Cowanesque Lake. Their population originated from a single Pennsylvania Fish and Boat Commission stocking of 45,000 fingerlings in 2012. They only represented 5% of the total Crappie catch but they were reproducing in the lake. White Crappie growth was faster than Black Crappie growth. Measurements showed that 30% of the White Crappie we caught exceeded 10 inches. The complete list of fish we caught in 2017 is in Table 1. It’s important to note that we only targeted Crappie at Cowanesque Lake so catches of other species are not representative of their populations. That said, the nine trap nets did catch 5 tiger muskellunge ranging from 37.0 to 44.9 inches long. -
Viral Hemorrhagic Septicemia (Vhs) in the Great Lakes
TRA S ON: DAM ON: I Muskellunge is one of at least 18 fish species TRAT in the Great Lakes affected by VHS. US ILL VIRAL HEMORRHAGIC SEPTICEMIA (VHS) www.miseagrant.umich.edu IN THE GREAT LAKES VHS is a viral disease affecting more than 40 species of marine and freshwater fish in North America. Typically a marine fish virus, most recently VHS has emerged in 18 species of fish in the Great Lakes region of the United States and Canada. The VHS isolate found in the Great Lakes USGS Winton, James Dr. Basin is most similar to the VHS isolate previously found in the Canadian Offices Maritime Region in Eastern North America and has been labeled Type IVb. Ann Arbor University of Michigan Samuel T. Dana Building VHS is not a human pathogen. According to 440 Church St., Suite 4044 What fish species in the Great Lakes Ann Arbor, MI 48109-1041 the Michigan Department of Natural Resources are affected by VHS? (734) 763-1437 (MDNR), there are no concerns with respect to VHS and human health, and the virus VHS has been confirmed in at least 18 fish East Lansing species in the Great Lakes, according to Michigan State University cannot infect humans if they eat fish with the 334 Natural Res. Bldg. pathogen. VHS is, however, an international the MDNR. East Lansing, MI 48824 reportable animal disease that requires (517) 353-9568 VHS has caused large fish kills in freshwater notification of and action by the United States Northeast: drum (lakes Ontario and Erie), muskellunge Department of Agriculture — Animal and (989) 984-1056 (Lake St. -
Order GASTEROSTEIFORMES PEGASIDAE Eurypegasus Draconis
click for previous page 2262 Bony Fishes Order GASTEROSTEIFORMES PEGASIDAE Seamoths (seadragons) by T.W. Pietsch and W.A. Palsson iagnostic characters: Small fishes (to 18 cm total length); body depressed, completely encased in Dfused dermal plates; tail encircled by 8 to 14 laterally articulating, or fused, bony rings. Nasal bones elongate, fused, forming a rostrum; mouth inferior. Gill opening restricted to a small hole on dorsolat- eral surface behind head. Spinous dorsal fin absent; soft dorsal and anal fins each with 5 rays, placed posteriorly on body. Caudal fin with 8 unbranched rays. Pectoral fins large, wing-like, inserted horizon- tally, composed of 9 to 19 unbranched, soft or spinous-soft rays; pectoral-fin rays interconnected by broad, transparent membranes. Pelvic fins thoracic, tentacle-like,withI spine and 2 or 3 unbranched soft rays. Colour: in life highly variable, apparently capable of rapid colour change to match substrata; head and body light to dark brown, olive-brown, reddish brown, or almost black, with dorsal and lateral surfaces usually darker than ventral surface; dorsal and lateral body surface often with fine, dark brown reticulations or mottled lines, sometimes with irregular white or yellow blotches; tail rings often encircled with dark brown bands; pectoral fins with broad white outer margin and small brown spots forming irregular, longitudinal bands; unpaired fins with small brown spots in irregular rows. dorsal view lateral view Habitat, biology, and fisheries: Benthic, found on sand, gravel, shell-rubble, or muddy bottoms. Collected incidentally by seine, trawl, dredge, or shrimp nets; postlarvae have been taken at surface lights at night. -
SNI and SNII) Summary Report Cloverleaf Chain of Lakes Shawano County (WBIC 299000
2017 Spring Netting (SNI and SNII) Summary Report Cloverleaf Chain of Lakes Shawano County (WBIC 299000) Page 1 Introduction and Survey Objectives W ISCONSIN DNR C ONTACT I NFO. In 2017, the Department of Natural Resources conducted a fyke netting survey of the Cloverleaf Chain of Lakes in order to provide insight and direction for the future fisheries management of the water body. Primary Jason Breeggemann—Fisheries Biologist sampling objectives of this survey are to characterize species composition, relative abundance and size struc- ture. The following report is a brief summary of the activities conducted, general status of fish populations and Elliot Hoffman - Fisheries Technician future management options. Wisconsin Department of Natural Resources Acres: 316 Shoreline Miles: 5.15 Maximum Depth (feet): 52 647 Lakeland Rd. Lake Type: Deep Headwater Public Access: Two Public Boat Launches Shawano, WI 54166 Regulations: 25 panfish of any size may be kept, except 5 or fewer can be bluegill and pumpkinseed over 7”. All other species statewide default regulations. Jason Breeggemann: 715-526-4227; [email protected] Survey Information Water Temperature Number of Site location Survey Dates Target Species Gear Net Nights (°F) Nets Elliot Hoffman: 715-526-4231; Northern Pike, Walleye, Cloverleaf Chain 4/3/2017 - 4/14/2017 42 - 50 Fyke Net 9 85 [email protected] Muskellunge, Panfish Survey Method • The Cloverleaf Chain of Lakes was sampled according to spring netting (SNI and SNII) protocols as outlined in the statewide lake assessment protocol. The primary objective for this sampling period is to count and measure adult walleye and muskellunge. -
The Role of Flow Sensing by the Lateral Line System in Prey Detection in Two African Cichlid Fishes
University of Rhode Island DigitalCommons@URI Open Access Dissertations 9-2013 THE ROLE OF FLOW SENSING BY THE LATERAL LINE SYSTEM IN PREY DETECTION IN TWO AFRICAN CICHLID FISHES Margot Anita Bergstrom Schwalbe University of Rhode Island, [email protected] Follow this and additional works at: https://digitalcommons.uri.edu/oa_diss Recommended Citation Schwalbe, Margot Anita Bergstrom, "THE ROLE OF FLOW SENSING BY THE LATERAL LINE SYSTEM IN PREY DETECTION IN TWO AFRICAN CICHLID FISHES" (2013). Open Access Dissertations. Paper 111. https://digitalcommons.uri.edu/oa_diss/111 This Dissertation is brought to you for free and open access by DigitalCommons@URI. It has been accepted for inclusion in Open Access Dissertations by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. THE ROLE OF FLOW SENSING BY THE LATERAL LINE SYSTEM IN PREY DETECTION IN TWO AFRICAN CICHLID FISHES BY MARGOT ANITA BERGSTROM SCHWALBE A DISSERTATION SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN BIOLOGICAL SCIENCES UNIVERSITY OF RHODE ISLAND 2013 DOCTOR OF PHILOSOPHY DISSERTATION OF MARGOT ANITA BERGSTROM SCHWALBE APPROVED: Dissertation Committee: Major Professor Dr. Jacqueline Webb Dr. Cheryl Wilga Dr. Graham Forrester Dr. Nasser H. Zawia DEAN OF THE GRADUATE SCHOOL UNIVERSITY OF RHODE ISLAND 2013 ABSTRACT The mechanosensory lateral line system is found in all fishes and mediates critical behaviors, including prey detection. Widened canals, one of the four patterns of cranial lateral line canals found among teleosts, tend to be found in benthic fishes and/or fishes that live in hydrodynamically quiet or light-limited environments, such as the deep sea. -
The Mechanosensory Lateral Line Is Used to Assess Opponents and Mediate Aggressive Behaviors During Territorial Interactions in an African Cichlid Fish Julie M
© 2015. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2015) 218, 3284-3294 doi:10.1242/jeb.125948 RESEARCH ARTICLE The mechanosensory lateral line is used to assess opponents and mediate aggressive behaviors during territorial interactions in an African cichlid fish Julie M. Butler and Karen P. Maruska* ABSTRACT The mechanosensory lateral line system senses changes in the Fish must integrate information from multiple sensory systems to environment through detection of near-flow water movements mediate adaptive behaviors. Visual, acoustic and chemosensory relative to the fish (Coombs, 1994; Coombs et al., 1996; Dijkgraaf, cues provide contextual information during social interactions, but the 1962; McHenry and Liao, 2014). The functional unit of the lateral role of mechanosensory signals detected by the lateral line system line system is a neuromast composed of sensory hair cells and during aggressive behaviors is unknown. The aim of this study was support cells covered by a gelatinous cupula (Dijkgraaf, 1962). first to characterize the lateral line system of the African cichlid Neuromasts are located either superficially on the skin surface fish Astatotilapia burtoni and second to determine the role of (superficial neuromasts, SN) or enclosed within dermal canals mechanoreception during agonistic interactions. The A. burtoni (canal neuromasts, CN) (Webb, 1989). Neuromasts are stimulated lateral line system is similar to that of many other cichlid fishes, when the cupula is deflected by viscous drag, activating the containing lines of superficial neuromasts on the head, trunk and mechanotransduction channels in the hair cells, and allowing for caudal fin, and narrow canals. Astatotilapia burtoni males defend their sensory perception of water movements relative to the movement of territories from other males using aggressive behaviors that we the fish (van Netten and McHenry, 2014). -
Humboldt Bay Fishes
Humboldt Bay Fishes ><((((º>`·._ .·´¯`·. _ .·´¯`·. ><((((º> ·´¯`·._.·´¯`·.. ><((((º>`·._ .·´¯`·. _ .·´¯`·. ><((((º> Acknowledgements The Humboldt Bay Harbor District would like to offer our sincere thanks and appreciation to the authors and photographers who have allowed us to use their work in this report. Photography and Illustrations We would like to thank the photographers and illustrators who have so graciously donated the use of their images for this publication. Andrey Dolgor Dan Gotshall Polar Research Institute of Marine Sea Challengers, Inc. Fisheries And Oceanography [email protected] [email protected] Michael Lanboeuf Milton Love [email protected] Marine Science Institute [email protected] Stephen Metherell Jacques Moreau [email protected] [email protected] Bernd Ueberschaer Clinton Bauder [email protected] [email protected] Fish descriptions contained in this report are from: Froese, R. and Pauly, D. Editors. 2003 FishBase. Worldwide Web electronic publication. http://www.fishbase.org/ 13 August 2003 Photographer Fish Photographer Bauder, Clinton wolf-eel Gotshall, Daniel W scalyhead sculpin Bauder, Clinton blackeye goby Gotshall, Daniel W speckled sanddab Bauder, Clinton spotted cusk-eel Gotshall, Daniel W. bocaccio Bauder, Clinton tube-snout Gotshall, Daniel W. brown rockfish Gotshall, Daniel W. yellowtail rockfish Flescher, Don american shad Gotshall, Daniel W. dover sole Flescher, Don stripped bass Gotshall, Daniel W. pacific sanddab Gotshall, Daniel W. kelp greenling Garcia-Franco, Mauricio louvar -
Viral Hemorrhagic Septicemia Virus
Viral Hemorrhagic Septicemia Virus Figure 1 microscopic look at viral hemorrhagic septicemia courtesy of http://cpw.state.co.us/learn/Pages/AAHLEmergingDiseasesIssues.aspx Jared Remington Aquatic Invasion Ecology University of Washington Fish 423 A Autumn 2014 December 5, 2014 Classification conducted by examining infected fish. Living specimens will appear either lethargic or over Order: Mononegavirales active, making sporadic movements, such as circles or corkscrews. Deceased specimens can Family: Rhabdoviridae appear dark in color, have pale gills, bloated Genus: Novirhabdovirus abdomen, fluid filled body cavity, bulging eyes, and most notably external and internal Species: Undescribed hemorrhaging or bleeding. External hemorrhaging will typically take place around Known by the common name Viral the base of fins, eyes, gills, and the skin. Internal Hemorrhagic Septicemia Virus, or in Europe hemorrhaging can be found in the intestines, air Egtved disease, you may find it abbreviated as bladder, kidneys, liver, heart, and flesh VHSV, VHSv, or VHS. Viral Hemorrhagic (McAllister, 1990; Marty et al., 1998; Kipp& Septicemia is part of the family Rhabdoviridae Ricciardi, 2006; Bartholomew, et al. 2011). which also includes the famous rabies virus which can affect humans and other mammals. Not to worry VHS does cannot infect humans, handling or consuming and infected fish will not result in contraction of the virus. The virus is exclusive to fishes. VHS is related to another famous fish killer, the infectious hematopoietic necrosis virus, both are part of the genus Novirhabdovirus. Identification Much like other rhabdoviruses, viral hemorrhagic septicemia (VHS) contains RNA within a bullet/cylindrical shaped shell made of Photo contains gizzard shad infected with viral glycoprotein G, the virus ranges from about 170- hemorrhagic septicemia, visual external 180nm long and 60-70nm wide (Elsayad et al. -
An Automatic Clinical Decision Support System Intended for MRI Brain
15(1):01(2021) Journal of fisheriessciences.com E-ISSN 1307-234X Panagiotis Berillis* @2020 www.fisheriessciences.com University of Thessaly, Department of Ichthyology and Aquatic Environment, Larisa, Greece Editorial Editorial on Overview of an Escox: Patricia Berillis* Department of Fish Nutrition Lab, Aquaculture Division, Marine Biology Branch, Al-Azhar University, Cairo, Egypt Received: 02.01.2021 / Accepted: 17.01.2021 / Published online: 28.01.2021 What does a pike look like? Muskellunge: This muskellunge is often shortened to muskie or musky, it is specie of large fresh water fish its Nothern pike: Northern pike are most oftenly olive green, native is North America. This is the biggest individual concealing from yellow to white along the gut. The flank from the pike family. rosy.is set apart with short, light bar-like spots and a few a few American Pickerel: In this we have two subspecies dull spots on the balances. Now and again, the blades are Redfin pickerel, E. americanus Does pike bite humans? Grass pickerel, Esox americanus vermiculatus While two or three reports have embroiled Northern pike Both subspecies are native to North America. They are not in assaults on swimmers, these fish truly represent no risk to be mistaken for their forceful partner the Northern pike. to people (except if you get your fingers trapped in their mouths). The story is diverse for the minuscule fishes they Amur Pike: this pike is also known as blackspotted pike, go after. These fishes are been known to chase in packs, this amur pike is from Amur river, it is closely related to practically like wolves.