Francisco Córdova‐Zavaleta

ORCID: 0000-0002-1852-3841
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About
Contact & Profiles
Research Areas
  • Ichthyology and Marine Biology
  • Fish biology, ecology, and behavior
  • Turtle Biology and Conservation
  • Fish Biology and Ecology Studies
  • Marine and fisheries research
  • Fish Ecology and Management Studies
  • Marine animal studies overview
  • Cephalopods and Marine Biology
  • Food Industry and Aquatic Biology
  • Wildlife Ecology and Conservation
  • Primate Behavior and Ecology
  • Marine Ecology and Invasive Species
  • Wildlife Conservation and Criminology Analyses

Delphinus Medical Technologies (United States)
2020-2023

Instituto Politécnico Nacional
2023

Universidad Nacional Agraria La Molina
2018-2020

In Ecuador, one of the main hazards for threatened marine species, such as sea turtles, is small-scale fisheries bycatch. At a global scale, currently, bycatch reduction technologies (BRTs) are being tested in many coastal nations to mitigate this issue. Despite some advances Ecuadorian efforts wildlife protection, BRTs reduce have yet be assessed. The purpose study was test BRT net illumination using violet light-emitting diodes (LEDs) mitigation measure turtle interactions driftnet fishery...

10.3856/vol48-issue3-fulltext-2428 article EN cc-by-nc-nd Latin American Journal of Aquatic Research 2020-07-06

The smooth hammerhead (Sphyrna zygaena) is the third most captured shark species in Peru, a nation with one of largest fisheries Pacific Ocean. We sought to better understand trophic ecology this northern Peru by analyzing stomach contents. From 2013 through 2015, we collected 485 samples gut contents from sharks measuring 53-294 cm total length. Our results show that top predator diet dominated jumbo flying squid (Dosidicus gigas) and Patagonian (Doryteuthis (Amerigo) gahi). Smooth...

10.7755/fb.115.4.2 article EN publisher-specific-oa Fishery Bulletin 2017-07-31

The stomach contents of thresher sharks ( Alopias spp.; 162–385 cm total length) were collected from five landing points in northern Peru during 2015. A 128 sampled, with 38 individuals identified as pelagicus and 90 aggregated to the genus level sp. prevent any misidentification. diet comprised 13 10 prey taxa for A. , respectively. Humboldt squid Dosidicus gigas dominated both groups, only minor differences relation size classes location. shows a high degree specialization average trophic...

10.1017/s0025315418000504 article EN Journal of the Marine Biological Association of the United Kingdom 2018-07-13

Introduction: The white-lipped peccary is a highly social species that forms large, cohesive groups of 10 to over 300 individuals. They are vulnerable human presence and habitat fragmentation because they require large extensions undisturbed forest with sufficient availability food maintain their biological requirements. This has disappeared in 84% its historic range Guatemala. In Guatemala, the only place containing viable population Maya Biosphere Reserve although it possible residual...

10.12933/therya-15-278 article EN cc-by-nc-nd Therya 2015-05-30

Abstract The Peruvian sea represents one of the most productive ocean ecosystems and possesses largest elasmobranch fisheries in Pacific Ocean. Ecosystem‐based management these will require information on trophic ecology elasmobranchs. This study aimed to understand diet, interactions role nine commercial species northern Peru through analysis stomach contents. A total 865 non‐empty stomachs were analysed. Off Peru, elasmobranchs function as upper‐trophic‐level consuming 78 prey items,...

10.1111/jfb.14624 article EN Journal of Fish Biology 2020-11-22

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10.3856/vol46-issue2-fulltext-24 article EN cc-by-nc-nd Latin American Journal of Aquatic Research 2018-05-10

Abstract Between October 2018 and 2019, seven megamouth sharks were reported as bycatch in the small-scale surface midwater gillnet fisheries operating from ports of Mancora Salaverry northern Peru. Here we present details these specimens events that represent first documented records this species Peruvian waters, confirming their occurrence bycatch. We recommend continued monitoring programs toward assessing extent species’ Peru its vulnerability to fishery interactions.

10.1186/s41200-020-00198-x article EN cc-by Marine Biodiversity Records 2021-01-05

The shortfin mako shark (Isurus oxyrinchus) is considered one of the most important top predators in pelagic marine food webs. diet was studied northern Peru through analysis 25 stomach contents. Cephalopods were prey group, followed by bony fishes and crustaceans. A total 11 species identified, with Humboldt squid Dosidicus gigas being prey, Ancistrocheirus lesueurii squid. trophic level 4.3 (tertiary predator) niche width 0.47 (intermediate degree specialization). This study contributes to...

10.22370/rbmo.2022.57.especial.3683 article EN cc-by-nc Revista de biología marina y oceanografía 2022-10-22

Mandibles, or beaks, of cephalopods, have become a useful tool for their identification. These hard structures, in addition to having different morphological characteristics, are composed chitin, water, proteins and amino acids that allow them be among the last components digested stomach an organism. This means they can found contents marine predators, which helps understand ecological relationships exist ecosystem. We analyzed cephalopod beaks three shark species: Blue sharks, Smooth...

10.21142/ss-0401-2023-e078 article EN cc-by South Sustainability 2023-01-01

Marine debris is one of the major concerns in marine pollution impacting biodiversity, and also for human health. Many organisms interact with this debris, principally through ingestion or entanglement. In study, we aimed to quantify stomachs blue shark (Prionace glauca) captured off Salaverry, Peru, during 2015. From hundred sampled, 40 contained at least type debris. Paper, wood, paint, plastic fragments, films fibers were found stomachs, a high predominance coloured different sizes. The...

10.2139/ssrn.4609436 preprint EN 2023-01-01

Food habits of Prionace glauca in waters off northern Peru 1 Supplementary Figure Images (A) a cyprid and (B) juvenile duck barnacle (Lepas anatifera) associated with the prey item 'unidentified cephalopods,' found stomachs blue sharks (Prionace glauca) collected between February December 2015 Peru.

10.7755/fb.116.3-4.9s article EN publisher-specific-oa Fishery Bulletin 2018-09-11
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