Results 91 to 100 of about 21,191 (303)

Inshore small-mesh trawling survey of the Cape south coast. Part 2. Occurrence of estuarine-associated fishes

open access: yes, 1984
Marine inshore trawl catches of 12 species of estuarine-associated fishes are reported together with their depth and length distributions. Underwater observations of four additional species, made during 122 SCUBA dives over rocky substrates, are also ...
Beckley, L.E., Kok, H.M., Wallace, J.H.
core  

Growth dynamics, skeletochronology, and histovariability of the theropod dinosaur Berthasaura leopoldinae

open access: yesThe Anatomical Record, EarlyView.
Osteohistological sampling on different bones of theropod dinosaur documents discrepant age record, growth, and metabolism. This could result unprecise paleobiological inferences if samplings are based on single bones. However, multi‐bone sampling can attenuate these discrepancies, helping to infer growth dynamics and physiology of these extinct ...
Geovane Alves de Souza   +3 more
wiley   +1 more source

A Proposed Method for Assessing the Spatio-Temporal Distribution of Carcharhinus melanopterus (Quoy and Gaimard, 1824) in Shallow Waters Using a UAV: A Study Conducted in Koh Tao, Thailand

open access: yesDiversity
In this study, we propose a method for assessing the temporal and spatial distribution of Carcharhinus melanopterus in shallow waters using unmanned aerial vehicles (UAVs).
Andrea Di Tommaso   +4 more
doaj   +1 more source

DECREASING OF THE PINK SALMON (ONCORHYNCHUS GORBUSCHA) ABUNDANCE IN SAKHALIN-KURIL REGION AS CONSEQUENCE OF EXTREME ENVIRONMENTAL FACTORS IMPACT

open access: yesИзвестия ТИНРО, 2018
The pink salmon abundance dynamics is considered for Sakhalin-Kuril region in 2007–2016. The year-classes of pink salmon originated from Iturup Island and four areas of eastern Sakhalin became weaker if they were affected by typhoons during their ...
A. M. Kaev
doaj   +1 more source

The abundance distribution of juvenile queen conch (Strombus gigas) in The Schooner Cays

open access: yes, 2022
Poster created by students of The Island School semester research class of Fall ...
Gomez, Olivia   +7 more
openaire   +1 more source

Dental crown morphological variation and heterodonty in carcharhiniform sharks

open access: yesThe Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

Highly infectious symbiont dominates initial uptake in coral juveniles

open access: yes, 2009
The majority of reef-building corals acquire their obligate algal symbionts (Symbiodinium) from the environment. However, factors shaping the initial establishment of coral– algal symbioses, including parental effects, local environmental conditions and
van Oppen, Madeleine J.H.   +5 more
core   +1 more source

An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation

open access: yesThe Anatomical Record, EarlyView.
Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski   +2 more
wiley   +1 more source

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

open access: yesIntegrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves   +6 more
wiley   +1 more source

Changes in occurrence and abundance of northern / southern flatfishes over a 20-year period in a coastal nursery area (Bay of Vilaine) and on the eastern continental shelf of the Bay of Biscay

open access: yesScientia Marina, 2006
Several works have demonstrated trends in the distribution of fish species relative to global warming. This study investigated whether similar trends have occurred for selected flatfish species on the continental shelf of the Bay of Biscay. These species
Yves Désaunay   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy