Browsing by Subject "Acoustic Monitoring of Marine Mammal Populations"
Now showing items 1-16 of 16
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Abundance estimate of the Amazon River Dolphin (Inia geoffrensis) and the tucuxi (Sotalia fluviatilis) in southern Ucayali, Peru
(Escuela de Ciencias del Mar, 2017)We present results of the first simultaneous visual and acoustic surveys for Amazon River dolphins (Inia geoffrensis) and tucuxi (Sotalia fluviatilis), undertaken in Yarinacocha Lagoon, Ucayali, Peru (length = 20 km, area ... -
Aerial behavior of humpback whales Megaptera novaeangliae at the southern limit of the southeast Pacific breeding area
(Universidad de Valparaíso, 2013)We evaluated the set of aerial displays shown by humpback whales Megaptera novaeangliae in the northern coast of Peru, a region that is considered the southern limit of the breeding area of the stock G in the Southeast ... -
Cetacean diversity revealed from whale-watching observations in northern Peru
(European Association for Aquatic Mammals, 2019)The marine ecosystem of Peru is one of the regions with the highest species richness of cetaceans worldwide (Pompa et al., 2011). Upwelling fuels high levels of primary and secondary productivity (Chavez et al., 2008), ... -
Challenges and priorities for river cetacean conservation
(Inter-Research, 2022)River cetaceans are particularly vulnerable to anthropogenic impacts due to their constrained ranges in freshwater systems of China, South Asia, and South America. We undertook an exhaustive review of 280 peer-reviewed ... -
Distribution and habitat use of a cryptic small cetacean, the Burmeister's porpoise, monitored from a small-scale fishery platform
(Frontiers Media, 2018)There is widespread evidence that small-scale fisheries (SSF) bycatch threatens many populations of small cetaceans, yet conservation efforts are often limited by a lack of basic knowledge regarding their abundance, ... -
Distribution of short- and long-beaked common dolphin morphs (Delphinus spp.) based on skull rostrum index analysis along the Peruvian and Chilean coast
(Sociedad Argentina para el Estudio de los Mamiferos - SAREM, 2023)The distribution of the long-beaked and short-beaked common dolphin morphs in the eastern South Pacific is not well defined. The objective of this study was to propose a potential distribution of the two forms along the ... -
Home range and movements of Amazon river dolphins Inia geoffrensisin the Amazon and Orinoco river basins
(Inter-Research, 2021)Studying the variables that describe the spatial ecology of threatened species allows us to identify and prioritize areas that are critical for species conservation. To estimate the home range and core area of the Endangered ... -
Local disconnects in global discourses—The unintended consequences of marine mammal protection on small-scale fishers
(John Wiley and Sons, 2021)Global commitments prioritize protection of wildlife and improvements to human wellbeing. Local disconnects in these commitments are rarely acknowledged—or their implications assessed—preventing the development of effective ... -
Morphological characterization of blood cells in Amazon River dolphin Inia geoffrensis: a case study
(Escuela de Ciencias del Mar, 2023)Inia geoffrensis is an endangered species of the Amazon River basin, but there has been limited research regarding its health, particularly in describing normal cell morphology by traditional techniques. This study aimed ... -
Pingers Reduce Small Cetacean Bycatch in a Peruvian Small-Scale Driftnet Fishery, but Humpback Whale (Megaptera novaeangliae) Interactions Abound
(European Association for Aquatic Mammals, 2022)Fishery interactions pose the most significant direct anthropogenic threat to marine mammals. In this study, we tested the effectiveness of acoustic alarms at reducing the bycatch of cetaceans by small-scale gillnet vessels ... -
Pingers reduce the activity of Burmeister's porpoise around small-scale gillnet vessels
(Inter-Research, 2019)Incidental mortality (bycatch) in gillnet fisheries is a major threat to many cetacean populations. Acoustic alarms or pingers are a widely adopted management tool used to deter dolphins and porpoises from nets; however, ... -
Public knowledge and awareness of the conservation of the common bottlenose dolphin (Tursiops truncatus) along the central coast of Peru
(John Wiley and Sons, 2023)Although the coastal common bottlenose dolphin Tursiops truncatus is under legal protection, this species is threatened by bycatch and direct hunting along the Peruvian coast. Species conservation can be better achieved ... -
Sea lion and fur seal interactions with fisheries and aquaculture in South American waters: threats and management perspectives
(John Wiley and Sons, 2023)The main issue affecting the conservation of most pinniped species has been identified as interactions with fisheries and aquaculture. In South American waters in particular, this problem has not been well evaluated. ... -
Selfies of imperial cormorants (Phalacrocorax atriceps): What is happening underwater?
(Public Library of Science, 2015)During the last few years, the development of animal-borne still cameras and video recorders has enabled researchers to observe what a wild animal sees in the field. In the present study, we deployed miniaturized video ... -
Use of Small Cetaceans as Bait in Small-Scale Fisheries in Peru
(Frontiers Media, 2020)The use of small cetaceans as bait is a practice that has been reported worldwide, affecting the conservation status of vulnerable species. In Peru specifically, it has been documented since at least the late 1990s. Here ... -
Whale watching in northern Peru: An economic boom?
(Cognizant Communication Corporation, 2020)Whale-watching tourism is growing rapidly worldwide. Currently, it occurs in more than 119 countries and is estimated to produce more than US$2.5 billion in annual revenue. In northern Peru, this industry is relatively ...
