Ivan A. Hinojosa

Ivan A. Hinojosa
Universidad Católica de la Santísima Concepción | UCSC · Departamento de Ecología

PhD
Profesor Asistente http://ecologiamarina.ucsc.cl

About

68
Publications
20,658
Reads
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2,294
Citations
Introduction
Using scientific diving, I am looking for ecological and evolutive phenomenon that make me think in hypotheses. I really enjoy to test them by field and laboratory experiments. Now, I am exploring to use the marine soundscape as a tool to evaluate the biodiversity, and also to investigate the effect of anthropogenic noise in ecological processes, mainly in fish and invertebrates.
Additional affiliations
January 2016 - April 2016
Universidad Católica del Norte (Chile)
Position
  • Postdoctoral Researcher, ESMOI
January 2016 - April 2016
Universidad Católica del Norte (Chile)
Position
  • Postdoctoral Researcher, ESMOI
January 2016 - October 2016
Universidad Católica del Norte (Chile)
Position
  • Postdoctoral Researcher, ESMOI

Publications

Publications (68)
Article
Temporal and spatial trends in settlement of the southern rock lobster, Jasus edwardsii, were examined to identify the influence of environmental variables over different spatial scales. Settlement data were collected from 1994 to 2011 along the Southern Australian and New Zealand coasts. We identified common settlement trends at a regional scale (...
Article
Full-text available
The post-larval or puerulus stage of spiny, or rock, lobsters (Palinuridae) swim many kilometres from open oceans into coastal waters where they subsequently settle. The orientation cues used by the puerulus for this migration are unclear, but are presumed to be critical to finding a place to settle. Understanding this process may help explain the...
Article
Full-text available
The rapid and often remote location of suitable habitats used by migrating organisms is often critical to their subsequent recruitment, fitness and survival, and this includes in the marine environment. However, for the non-feeding post-larval stage of spiny lobsters, effective settlement cues for habitat selection are critical to their success but...
Article
Full-text available
Kelp habitats provide food, refuge, and enhance the recruitment of commercially important marine invertebrates. The southern rock lobster, Jasus edwardsii, supports valuable fisheries in southern Australia and New Zealand. Kelp habitats once covered large areas of inshore reef around Tasmania, Australia, but coverage has reduced over the last few d...
Article
a b s t r a c t Floating objects are suggested to be the principal vector for the transport and dispersal of marine invertebrates with direct development as well as catalysts for carbon and nutrient recycling in accumulation areas. The first step in identifying the ecological relevance of floating objects in a specific area is to identify their spa...
Conference Paper
Full-text available
Gorgonians are one of the most common three-dimensional organisms in circalittoral seascapes that provide key ecological services and human goods. Gorgonian gardens of a new species of the genera Leptogorgia sp. are found in Caleta Pichicuy, Chile. Little is known about these populations including depth distribution, colony abundance, structural at...
Poster
Full-text available
The Eastern Pacific Ocean can be considered a gorgonian biodiversity hotspot. However, most biodiversity studies in this group of organisms have focused on tropical shallow waters from Mexico to Ecuador, neglecting the faunistic component of southern regions from Ecuador to Chile. The first description of a Chilean octocoral dates back to the H.M.S...
Conference Paper
Full-text available
Gorgonians are one of the most common three-dimensional organisms in circalittoral seascapes that provide key ecological services and human goods. Gorgonian gardens of a new species of the genera Leptogorgia sp. are found in Caleta Pichicuy, Chile. Little is known about these populations including depth distribution, colony abundance, structural at...
Article
Many seaweed species are particularly important for passive marine dispersal, yet relatively little is known about their floating and stranding dynamics. Here, we studied these dynamics for two kelp species over four consecutive years at mid‐latitudes (30°S). Floating kelps were found during all seasons, but Macrocystis pyrifera was always more abu...
Article
Full-text available
Coral reefs are structurally complex habitats that provide diverse shelter for motile benthic invertebrates (MBI), including those with cryptic and nocturnal behaviors. In this study, diel changes in MBI structure (species composition, density, and biomass) and functions (trophic groups and isotopic diversity indices) were examined on coral reefs a...
Article
Full-text available
Kelp forests are associated with high biodiversity as they provide habitat and food source for many species. Redspotted catshark Schroederichthys chilensis is a coastal shark species associated with kelp forests of southern South America dominated by Lessonia trabeculata. Despite its common occurrence redspotted catshark the knowledge on its trophi...
Article
Large amounts of floating litter accumulate in the subtropical gyres, and the shorelines of oceanic islands in the vicinity of these accumulation zones receive large amounts of litter. The dynamics of marine litter arrival were evaluated on a small pocket beach on Rapa Nui (Easter Island) between November 2016 and June 2017 over a total time period...
Article
In response to the COVID-19 pandemic in 2020, Personal Protective Equipment (PPE) has been extensively used, and discarded PPE has been observed in many different environments, including on tourist beaches. Here we examined the distribution and densities of face masks on some of the main tourist beaches in Chile, and we monitored their daily accumu...
Article
Floating marine debris (FMD) were abundantly reported in the Northern Chilean Patagonia in 2009 where sea-based activities (mussel and salmon aquaculture) are responsible for most of them. Identifying the sources of FMD is important to take the necessary actions to diminish their abundance. In 2019 eleven transects were opportunistically conducted...
Article
Full-text available
The structure of food webs provides important insight into biodiversity, organic matter (OM) pathways, and ecosystem functioning. Stable isotope analysis (δ13C and δ15N) was used to characterize the trophic structure and the main OM pathways supporting food webs in the Rapa Nui coastal marine ecosystem. The trophic position of consumers and isotopi...
Article
Full-text available
• Identifying the diverse assemblage of species inhabiting rocky and coral reef habitats in isolated oceanic environments, and the important sound cues emitted from the reef, are crucial components to understand how species locate suitable habitats for the completion of their life‐cycle and, thus, the functioning of these vulnerable ecosystems. • R...
Article
Reef Life Survey (RLS) provides a new model for ecological monitoring through training experienced recreational divers in underwater visual census methods to the level of skilled scientists. Detail produced is similar to that of programs with professional scientific teams, at low cost to allow global coverage. RLS differs from most other citizen sc...
Article
-Marine plastic pollution is worse than expected, and we are starting to realize its full extent and severity. Solving the plastic pollution problem is not easy, as it requires the action and commitment of all sectors of our society. With a coastline extending over 4,000 km (from 18°S to 56°S), Chile is a maritime country, and since plastics are po...
Article
Full-text available
Anthropogenic underwater noise can have detrimental impacts on marine invertebrates; however, its effects on mating and metabolism are not fully understood. In the rock shrimp Rhynchocinetes typus two morphotypes of mature males, "typus" and "robustus", compete for sexually receptive females. Robustus are the dominant, whereas typus utilize an "alt...
Article
Full-text available
Predation risk can strongly shape prey ecological traits, with specific anti-predator responses displayed to reduce encounters with predators. Key environmental drivers, such as temperature, can profoundly modulate prey energetic costs in ectotherms, although we currently lack knowledge of how both temperature and predation risk can challenge prey...
Article
Full-text available
• 1. On shallow reefs, day‐night activity patterns between fishes and invertebrates are presumed to reflect trade‐offs between feeding and predation; however, quantitative data on daily community dynamics are scarce. Moreover, night surveys may contribute important information for biodiversity inventories or baselines that normally are not consider...
Chapter
Settlement and metamorphosis are two crucial processes in organisms with a biphasic life cycle, forming the link between the pelagic larva and benthic juvenile-adult. In general, these processes occur during the final larval stage. Among crustaceans, settlement behavior and the cues that trigger settlement and metamorphosis have been studied in gre...
Article
Understanding animals' daily activity patterns such as foraging and resting is key to the effective conservation of individuals, populations, and species. Expanding habitat usage by humans today is likely one of the major factors influencing animal habitat use and behavior. Rapa Nui, a remote Chilean island located at the easternmost corner of the...
Chapter
After detachment from their substratum, many seaweeds can float or drift at the mercy of currents and winds, thereby facilitating their dispersal and connectivity. In Antarctica only one species possess floating structures (gas-filled vesicles), the brown seaweed Cystosphaera jacquinotti. However, other species such as Durvillaea antarctica and Mac...
Article
For more than four decades, floating marine debris has been recognized on the ocean surface, where plastic is one of the most abundant floating items. We started recording plastic pollution along the Chilean coast in 2000 and have found an abundance similar to that recorded in other countries. Plastic distribution along the Chilean coast suggests t...
Article
Full-text available
Consumer pressure in benthic communities is predicted to be higher at low than at high latitudes, but support for this pattern has been ambiguous, especially for herbivory. To understand large-scale variation in biotic interactions, we quantify consumption (predation and herbivory) along 2500 km of the Chilean coast (19°S–42°S). We deployed tetheri...
Presentation
Full-text available
Anthropogenic-driven underwater noise has been identified as an important pollutant globally, however, its potential impacts on the mating behavior in aquatic invertebrates is still unclear. The rock shrimp Rhynchocinetes typus is a decapod caridean crustacean, widely distributed along the Southeast Pacific coast. Mating behavior in this specie is...
Poster
Full-text available
Anthropogenic-driven underwater noise has been identified as pollutant globally, however, its impacts on mating behavior and metabolism in marine invertebrates are still unclear. In the shrimp, Rhynchocinetes typus two morphotypes of mature males, “typus” and “robustus”, strongly compete for a sexually receptive female. Robustus males are the domin...
Article
Full-text available
Anthropogenic Marine Debris (AMD) in the SE Pacific has primarily local origins from land-based sources, including cities (coastal and inland), beach-goers, aquaculture, and fisheries. The low frequency of AMD colonized by oceanic biota (bryozoans, lepadid barnacles) suggests that most litter items from coastal waters of the Humboldt Current System...
Article
We examined the hypothesis that in an emerging economy such as Chile the abundances of Anthropogenic Marine Debris (AMD) on beaches are increasing over time. The citizen science program Científicos de la Basura (“Litter Scientists”) conducted three national surveys (2008, 2012 and 2016) to determine AMD composition, abundance, spatial patterns and...
Article
Full-text available
Coastal marine upwelling famously supports elevated levels of pelagic biological production, but can also subsidise production in inshore habitats via pelagic-benthic coupling. Consumers inhabiting macroalgae-dominated rocky reef habitats are often considered to be members of a food web fuelled by energy derived from benthic primary production; con...
Chapter
Full-text available
The Millennial Scientific Initiative (Government of Chile) with funding from External Projection PME 2016
Data
Ambient sound recorded at the experimental site during experiments. (WAV)
Data
Ambient sound recorded at the experimental site before experiments. (WAV)
Data
Full-text available
Fecha de recepción: enero de 2004 -Versión corregida aceptada: mayo de 2007. RESUMEN Durante el crucero "CIMAR 9 Fiordos" realizado en agosto y noviembre de 2003 en los fiordos y canales de la región de Aysén, Chile, se cuantificó la abundancia de macroalgas flotando a la deriva (MFD) y se identificó los estados tempranos de desarrollo de crustáceo...
Article
Floating macroalgae are common dispersal vehicles for associated benthic invertebrates. In order to investigate the importance of kelp rafts for species dispersal in the Patagonian Fjord Region (PFR), the abundance and distribution pattern of floating kelps (Macrocystis pyrifera, Durvillaea antarctica) and of the invertebrate fauna associated with...
Article
Full-text available
The reproductive biology of many species of anomuran crabs is only poorly known. Herein we studied the reproductive biology of two species of squat lobsters, Cervimunida johni Porter, 1903 and Pleuroncodes monodon (H. Milne Edwards, 1837), which are target of a trawl fishery operating on the continental margin along the Chilean coast. During the re...
Article
Full-text available
Many small marine herbivores utilize specific algal hosts, but the ultimate factors that shape host selec-tion are not well understood. For example, the use of particular microhabitats within algal hosts and the func-tional role of these microhabitats have received little attention, especially in large algae such as kelps. We studied microhabitat u...
Article
Full-text available
During summer 2009, we conducted a field experiment and a field survey at 30 degrees S in the coastal Humboldt Current to determine how floating time affects the physiological performance of kelp rafts. For the field experiment kelp rafts were tethered in coastal waters and the field survey was specifically designed to collect free-floating Macrocy...
Article
Full-text available
Rafts of Macrocystis pyrifera (L.) C. Agardh can act as an important dispersal vehicle for a multitude of organisms, but this mechanism requires prolonged persistence of floating kelps at the sea surface. When detached, kelps become transferred into higher temperature and irradiance regimes at the sea surface, which may negatively affect kelp physi...
Article
Floating objects facilitate the dispersal of marine and terrestrial species but also represent a major environmental hazard in the case of anthropogenic plastic litter. They can be found throughout the world's oceans but information on their abundance and the spatio-temporal dynamics is scarce for many regions of the world. This information, howeve...
Article
Full-text available
Litter from anthropogenic sources is commonly observed on beaches in the SE Pacific. The composition of litter found on the shore suggests that most of it has passed relatively little time at sea, and has mostly local sources. In southern Chile, stray items from aquaculture installations comprise most of the garbage, whereas in central and northern...
Article
Full-text available
Many small arthropod herbivores from terrestrial and marine environments construct tubicolous nest-like domiciles on their host plants or algae by rolling up selected portions of the leaf or blade. Nests serve as both shelter and food, which results in conflicting needs for the grazers because feeding activity continuously destroys parts of the nes...
Article
Full-text available
Many small arthropod herbivores from terrestrial and marine environments construct tubicolous nest-like domiciles on their host plants or algae by rolling up selected portions of the leaf or blade. Nests serve as both shelter and food, which results in conflicting needs for the grazers because feeding activity continuously destroys parts of the nes...
Article
Numerous studies suggest that floating macroalgae contribute to population connectivity of the algae themselves as well as of associated organisms. In order to evaluate the importance of floating macroalgae for population connectivity in southern Chile we analysed their spatial and temporal distributions. We estimated the abundance of floating kelp...
Article
Full-text available
Aim: The abundant-centre hypothesis (ACH) is based on the assumption that physiological constraints limit populations at the edges of their distributional range, yet the geographical variation of physiological performance or life-history traits has rarely been examined. Here we examine the applicability of the ACH in a marine system by testing whet...
Article
Full-text available
Macroalgal rafts frequently occur floating in coastal waters of temperate regions of the world’s oceans. These rafts are considered important dispersal vehicles for associated organisms with direct development. However, environmental factors may limit the floating potential of kelp and thereby the dispersal of associated organisms. To examine the e...
Article
Floating marine debris (FMD) is reported from all oceans. The bulk of FMD are plastics, which due to their longevity cause multiple negative impacts on wildlife and environment. Identifying the origins of FMD (land- or sea-based) is important to take the necessary steps to diminish their abundance. Using ship surveys we examined the abundance, comp...
Article
Durante el crucero ¿CIMAR 9 Fiordos¿ realizado en Agosto y Noviembre del 2003 en los fiordos y canales de la Región de Aysén, Chile, se cuantificó la abundancia de macroalgas flotando a la deriva (MFD) y se identificó los estados tempranos de desarrollo de crustáceos decápodos (megalopas y juveniles, ETD) asociados a ellas. Las macroalgas Macrocyst...
Article
Full-text available
The majority of zoogeographic studies along the Chilean Pacific coast have focused on benthic organisms and oceanographic conditions are considered the main factors influencing their distributions. Herein we examined the geographic distribution of pelagic barnacles of the family Lepadidae collected from floating macroalgae at seven sampling areas b...
Article
Full-text available
The majority of zoogeographic studies along the Chilean Pacific coast have focused on benthic organisms and oceanographic conditions are considered the main factors influencing their distributions. Herein we examined the geographic distribution of pelagic barnacles of the family Lepadidae collected from floating macroalgae at seven sampling areas b...
Article
Full-text available
Some species of macroalgae continue to live for extended periods of time after detachment and may even maintain reproductive structures, yet very little is known about this process. Here, we describe the presence of sporophylls (with sporogenous tissues) on floating kelp rafts of Macrocystis spp. along the coast of Chile. Surveys were conducted at...
Article
La obtención de restos de macroalgas flotando a la deriva en aguas frente al sur de Chile permite, por primera vez, explorar la presencia de peces nadando junto con ellas. Se registra la presencia del pez aguja Leptonotus blainvilleanus (familia Syngnathidae); la cojinova Seriolella porosa (familia Centrolophidae); el pampanito, Stromateus stellatu...
Article
The obtention of floating macroalgae debris in waters of southern Chile, for the first time allowed to explore the presence of fishes swimming together with such kind of ensemble. The presence of the following three species was recorded: the pipefish Leptonotus blainvilleanus (Family Syngnathidae), the chicy ruff Seriolella porosa (Family Centrolop...
Article
While studies on a wide diversity of organisms have demonstrated the importance of female behavior during matings, in crustacean studies, a strong bias towards male mating behavior prevails. Reproductively mature rock shrimp (Rhynchocinetes typus) exist as several ontogenetic stages that differ in their morphological and physiological capacities. I...
Article
Investment in somatic and gametic resources may vary during the ontogeny of an organism. In the rock shrimp, Rhynchocinetes typus, males pass through several stages during ontogeny, and a dominance order reflects this developmental order (typus<intermedius<robustus). During mating in a competitive environment, subordinate males use a sneaking tacti...
Article
During ontogeny, male rock shrimp Rhynchocinetes typus develop from the typus morphotype through several intermedius stages to the robustus morphotype, the last molt stage, which features powerful third maxillipeds and chelae. In a competition-free environment, all male stages mate in a similar manner. They guard females for 23 min to 3 h and perfo...