Cahiers de Biologie Marine (2018)
Field experiments with Aquamark 100 and Aquamark 200 pingers were conducted in the bottom set gill net fishery for turbot in the Black Sea coast between March and June 2012.…
Spatial avoidance to experimental increase of intermittent and continuous sound in two captive harbour porpoises
Kok, Annebelle C. M.; Engelberts, J. Pamela; Kastelein, Ronald A.; Helder-Hoek, Lean; Van de Voorde, Shirley; Visser, Fleur; Slabbekoorn, Hans
Environmental Pollution (2018)
The continuing rise in underwater sound levels in the oceans leads to disturbance of marine life. It is thought that one of the main impacts of sound exposure is the…
Testicular morphology and spermatogenesis in harbour porpoises (Phocoena phocoena)
Kesselring, T.; Viquerat, S.; IJsseldijk, L. L.; Langeheine, M.; Wohlsein, P.; Gröne, A.; Bergmann, M.; Siebert, U.; Brehm, R.
Theriogenology (2019)
Knowledge about reproductive parameters in male harbour porpoises such as testicular histology and germ cell maturation as well as seasonal changes in spermatogenesis is scarce. Thus, the aim of the…
Drivers of the dive response in trained harbour porpoises (Phocoena phocoena)
Elmegaard, Siri L.; McDonald, Birgitte I.; Madsen, Peter T.
The Journal of Experimental Biology (2019)
Pronounced dive responses through peripheral vasoconstriction and bradycardia enable prolonged apnoea in marine mammals. For most vertebrates, the dive response is initiated upon face immersion, but little is known about…
A field effort to capture critically endangered vaquitas Phocoena sinus for protection from entanglement in illegal gillnets
Rojas-Bracho, L.; Gulland, F. M. D.; Smith, C. R.; Taylor, B.; Wells, R. S.; Thomas, P. O.; Bauer, B.; Heide-Jørgensen, M. P.; Teilmann, J.; Dietz, R.; Balle, J. D.; Jensen, M. V.; Sinding, M. H. S.; Jaramillo-Legorreta, A.; Abel, G.; Read, A. J.; Westgate, A. J.; Colegrove, K.; Gomez, F.; Martz, K.; Rebolledo, R.; Ridgway, S.; Rowles, T.; van Elk, C. E.; Boehm, J.; Cardenas-Hinojosa, G.; Constandse, R.; Nieto-Garcia, E.; Phillips, W.; Sabio, D.; Sanchez, R.; Sweeney, J.; Townsend, F.; Vivanco, J.; Vivanco, J. C.; Walker, S.
Endangered Species Research (2019)
In 2017 an emergency field effort was undertaken in an attempt to prevent the extinction of the world’s most endangered marine mammal, the vaquita (Phocoena sinus). The rescue effort involved…
Cytokine expression and lymphocyte proliferative capacity in diseased harbor porpoises (Phocoena phocoena) – Biomarkers for health assessment in wildlife cetaceans
Lehnert, Kristina; Siebert, Ursula; Reißmann, Kristina; Bruhn, Regina; McLachlan, Michael S.; Müller, Gundi; van Elk, Cornelis E.; Ciurkiewicz, Malgorzata; Baumgärtner, Wolfgang; Beineke, Andreas
Environmental Pollution (2019)
Harbor porpoises (Phocoena phocoena) in the North and Baltic Seas are exposed to anthropogenic influences including acoustic stress and environmental contaminants. In order to evaluate immune responses in healthy and…
Porpoises the world over: Diversity in behavior and ecology
Teilmann, Jonas; Sveegaard, Signe
Ethology and Behavioral Ecology of Odontocetes (2019)
Unlike the large number of species of true dolphins, there are only seven porpoise or phocoenid species, inhabiting different habitats and climate zones. They range from ice-covered water in the…
Histological variation in blubber morphology of the endangered East Asian finless porpoise (Neophocaena asiaeorientalis sunameri) with ontogeny and reproductive states
Ji, Junhua; Nabi, Ghulam; Zeng, Xianyuan; Hao, Yujiang; Wang, Ding
Zoological Studies (2019)
The highly lipid-rich blubber in the hypodermis is a specialized structure that functions in thermoregulation, energy storage, buoyancy control, locomotion, and streamlining the body shape in marine mammals. The key…
Physical modeling and validation of porpoises’ directional emission via hybrid metamaterials
Dong, Erqian; Zhang, Yu; Song, Zhongchang; Zhang, Tianye; Cai, Chen; Fang, Nicholas X.
National Science Review (2019)
In wave physics and engineering, directional emission sets a fundamental limitation on conventional simple sources as their sizes should be sufficiently larger than their wavelength. Artificial metamaterial and animal biosonar…
Genetic homogeneity in the face of morphological heterogeneity in the harbor porpoise from the Black Sea and adjacent waters (Phocoena phocoena relicta)
Ben Chehida, Yacine; Thumloup, Julie; Vishnyakova, Karina; Gol’din, Pavel; Fontaine, Michael C.
Heredity (2019)
Absence of genetic differentiation is usually taken as an evidence of panmixia, but can also reflect other situations, including even nearly complete demographic independence among large-sized populations. Deciphering which situation…