Results 41 to 50 of about 890 (162)

The shallow-water fish assemblage of Isla del Coco National Park, Costa Rica: structure and patterns in an isolated, predator-dominated ecosystem [PDF]

open access: yes, 2012
18 páginas, 7 figuras, 5 tablas[EN]Fishes at Isla del Coco National Park, Costa Rica, were surveyed as part of a larger scientific expedition to the area in September 2009.
Aburto-Oropeza, Octavio   +5 more
core  

From Data Deficient to Big Data in Shark Conservation

open access: yesFish and Fisheries, Volume 26, Issue 6, Page 977-990, November 2025.
ABSTRACT Citizen science is increasingly harnessed worldwide to gather data otherwise requiring a prohibitive investment of funding and time. Meanwhile, the revolution in digital communication offers opportunities from crowdsourcing, big data approaches and social network mining to quickly and cost‐effectively fill major gaps in knowledge necessary to ...
F. Ferretti   +8 more
wiley   +1 more source

Switch from sexual to parthenogenetic reproduction in a zebra shark [PDF]

open access: yes, 2017
Parthenogenesis is a natural form of asexual reproduction in which embryos develop in the absence of fertilisation. Most commonly found in plants and invertebrate organisms, an increasing number of vertebrate species have recently been reported employing
Bone, R.   +4 more
core   +2 more sources

Use of an acceleration data logger to measure diel activity patterns in captive whitetip reef sharks,Triaenodon obesus

open access: yesAquatic Living Resources, 2007
Traditional telemetry methods have been used to quantify the horizontal and vertical displacement of marine species, but are unable to identify specific physical activities such as swimming or gliding, resting, foraging, or spawning. We tested the utility of an acceleration data logger to quantify activity patterns of three captive whitetip reef sharks
Nicholas M. Whitney   +3 more
openaire   +1 more source

Effects of protection on large‐bodied reef fishes in the western Indian Ocean

open access: yesConservation Biology, Volume 39, Issue 4, August 2025.
Abstract Predatory and large‐bodied coral reef fishes have fundamental roles in the functioning and biodiversity of coral reef ecosystems, but their populations are declining, largely due to overexploitation in fisheries. These fishes include sharks, groupers, Humphead wrasse (Cheilinus undulatus), and Green Humphead parrotfish (Bolbometopon muricatum).
Melita Samoilys   +4 more
wiley   +1 more source

Role, importance and vulnerability of top predators on the Great Barrier Reef: a review [PDF]

open access: yes, 2010
The purpose of this review is to evaluate the ecological role of predators on the Great Barrier Reef (GBR), their vulnerability to human activities and their contribution to ecosystem and economic values.
Ayling, T., Ceccarelli, D.
core  

Taxonomic assessment of sharks occurring in Pakistan (northern Arabian Sea)

open access: yesThe European Zoological Journal
We described the Sharks of Pakistan on the basis of external morphology represented by 41 species belonging to 10 families. Family Pseudocarchariidae (Pseudocarcharias kamoharai), family Alopidae (Alopias pelgicus, A.
P. J. A. Siddiqui, A. Javed
doaj   +1 more source

Fishery of elasmobranchs with some observations on the biology and stock assessment of Carcharhinus limbatus (P. Muller & Henle, 1839) exploited along Malabar coast [PDF]

open access: yes, 2012
Elasmobranchs are caught in trawls, gillnets and longlines along the Malabar region of Kerala and they are landed almost round the year, accounting less than 1% of the total catch.
Manojkumar, P P   +2 more
core  

DNA BARCODING IKAN HIU YANG TERTANGKAP DI PERAIRAN ACEH [PDF]

open access: yes, 2015
ABSTRAKTujuan dari penelitian ini adalah untuk menvalidasi status taksonomi hiu yangditangkap di Perairan Aceh. Pengambilan sampel dilakukan pada Maret-April 2014 di empat Tempat Pendaratan Ikan (TPI), yaitu TPI padang Seurahet ...
ICHSAN ANANDA PUTRA
core  

Liste complémentaire des poissons marins de Nha-trang [PDF]

open access: yes, 1965
This commented inventory of 310 fishes of Nhatrang Bay (Vietnam) completed the previous list compiled by P. Chevey, P. Chabanaud, J.
Do-Thi, Nhu-Nhung, Fourmanoir, P.
core   +2 more sources

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