Results 101 to 110 of about 32,959 (311)
Journal of Fish Biology, EarlyView.Abstract The plainfin midshipman (Porichthys notatus Girard, 1854) is a toadfish with two distinct reproductive male tactics: ‘guarder males’ and ‘sneaker males’. These two tactics are anatomically, physiologically and behaviourally distinct from one another at sexual maturity, but it remained unclear whether these two male types remain fixed or ...
Micah J. Quindazzi +4 more
wiley +1 more source
Peeling the Otolith of Fish: Optimal Parameterization for Micro-CT Scanning
Frontiers in Marine Science, 2019 In this paper, we aim to provide optimal parameters for micro-computed tomography scans of fish otoliths. We tested fifteen different combinations to sagittae. The images were scaled to Hounsfield units, and segmented in two distinct volumes-of-interest (
Jonas E. Vasconcelos-Filho +12 more
doaj +1 more source
Food habits of California Sea Lions (Zalophus californianus) and their impact on Salmonid Fisheries in Monterey Bay, California [PDF]
, 1999 In the ocean commercial troll and recreational salmon fishery in Monterey Bay California, California sea lions (Zalophus califomianus) will swim near or follow fishing boats and will depredate fish once hooked.
Harvey, James, T., Weise, Michael, J.
core
Hyperostotic tympanic bone spicules in domestic and wild animal species [PDF]
, 2016 Hyperostotic tympanic bone spicules (HTBS), or "mucoperiosteal exostoses" (ME, syn.) are small, globular (>= 1 mm in diameter), mostly stalked and drumstick-like, bony structures, which arise from the inner wall of the tympanic bulla and project into the
Blutke, A +5 more
core +2 more sources
Journal of Fish Biology, EarlyView.Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs +3 more
wiley +1 more source
Otolith Deprivation Induces Optokinetic Compensation
Journal of Neurophysiology, 2005 According to the multisensory integration theory vestibular, optokinetic and proprioceptive inputs act in concert to maintain a stable retinal image of the visual world. Yet, it remains elusive to what extent the otolith organs contribute to this process and whether a specific loss of otolith input is compensated for.
Andreescu, Corina E +3 more
openaire +4 more sources
Age and growth of swordfish (Xiphias gladius) caught by the Hawaii-based pelagic longline fishery [PDF]
, 2007 We verified the age and growth of swordfish (Xiphias gla-dius) by comparing ages determined from annuli in fin ray sections with daily growth increments in otoliths.
DeMartini, Edward E. +4 more
core
The German Bight (North Sea) is a nursery area for both locally and externally produced sprat juveniles [PDF]
, 2009 To better understand the role of the German Bight (GB) as a nursery area for juvenile North Sea sprat Sprattus sprattus we sought to determine whether the area may receive only locally or also externally produced offspring.
Baumann, H. +3 more
core +1 more source
Journal of Fish Biology, EarlyView.Abstract The European pilchard, Sardina pilchardus, is a key small pelagic fish sustaining Mediterranean ecosystems and fisheries. This study represents the first comprehensive biological and population dynamics assessment of the European pilchard by applying the length‐based spawning potential ratio (LB‐SPR) approach to S.
Mohab Badreldin +3 more
wiley +1 more source
Comparison of life history parameters for landed and discarded fish captured off the southeastern United States [PDF]
, 2011 Commercial fisheries that are managed with minimum size limits protect small fish of all ages and may affect size-selective mortality by the differential removal of fast growing fish.
Harris, Patrick J. +2 more
core +1 more source