scholarly journals Fine-scale habitat use and behavior of a nearshore fish community: nursery functions, predation avoidance, and spatiotemporal habitat partitioning

2016 ◽  
Vol 557 ◽  
pp. 1-15 ◽  
Author(s):  
SH Munsch ◽  
JR Cordell ◽  
JD Toft
2013 ◽  
Author(s):  
Jacob J Levenson ◽  
Robert Cooper ◽  
Colin Ware ◽  
Jacqueline Sly ◽  
David Wise ◽  
...  

Background. The rapidly decreasing cost of components and growing open source electronics industry has enabled access to improved tools for monitoring the behavior of aquatic species on a fine scale never before achieved. We use the new Open Tag as a novel approach to visualizing feeding behavior of whale sharks. Methods. The Open Tag is a Arduino compatible open-source inertial measurement unit for recording high speed motion sensor data to a microSD memory card. A three dimensional gyroscope, accelerometer, and magnetometer allow for calculating pitch, yaw, and heading, while depth and temperature sample continuously. The rechargeable lithium battery allows for deployments up to 7 days sampling at 100Hz. The Open Tag is placed in a hydrodynamic syntactic foam float, with a band that stretches around the dorsal fin. A galvanic release incorporated into the tag allows for a release time to be programmed and a VHF tag (ATS) aids in recovery. Results. An Open Tag was successfully deployed on a whale shark for 101 hours in August of 2013 in Yucatan Mexico. Behaviors noted included frequent surface intervals, even during the night when previously believed whale sharks were normally in deeper waters. A maximum depth of 49 meters was observed, with dives to 25 meters recorded regularly. We were able to identify possible harassment at the surface and defecation events. Conclusion. The Open Tag fills a unique niche in whale shark studies as a useful tool to better understanding of fine scale habitat use and behavior. By incorporating these data into Trackplot with data on the position of ecotour vessels, we can visualize behavior and investigate potential erratic changes in depth, heading and lateral movement amplitude indicative of harassment


2013 ◽  
Author(s):  
Jacob J Levenson ◽  
Robert Cooper ◽  
Colin Ware ◽  
Jacqueline Sly ◽  
David Wise ◽  
...  

Background. The rapidly decreasing cost of components and growing open source electronics industry has enabled access to improved tools for monitoring the behavior of aquatic species on a fine scale never before achieved. We use the new Open Tag as a novel approach to visualizing feeding behavior of whale sharks. Methods. The Open Tag is a Arduino compatible open-source inertial measurement unit for recording high speed motion sensor data to a microSD memory card. A three dimensional gyroscope, accelerometer, and magnetometer allow for calculating pitch, yaw, and heading, while depth and temperature sample continuously. The rechargeable lithium battery allows for deployments up to 7 days sampling at 100Hz. The Open Tag is placed in a hydrodynamic syntactic foam float, with a band that stretches around the dorsal fin. A galvanic release incorporated into the tag allows for a release time to be programmed and a VHF tag (ATS) aids in recovery. Results. An Open Tag was successfully deployed on a whale shark for 101 hours in August of 2013 in Yucatan Mexico. Behaviors noted included frequent surface intervals, even during the night when previously believed whale sharks were normally in deeper waters. A maximum depth of 49 meters was observed, with dives to 25 meters recorded regularly. We were able to identify possible harassment at the surface and defecation events. Conclusion. The Open Tag fills a unique niche in whale shark studies as a useful tool to better understanding of fine scale habitat use and behavior. By incorporating these data into Trackplot with data on the position of ecotour vessels, we can visualize behavior and investigate potential erratic changes in depth, heading and lateral movement amplitude indicative of harassment


1977 ◽  
Vol 34 (3) ◽  
pp. 360-370 ◽  
Author(s):  
Earl E. Werner ◽  
Donald J. Hall ◽  
Dennis R. Laughlin ◽  
Donald J. Wagner ◽  
Leni A. Wilsmann ◽  
...  

The patterns of habitat utilization in the littoral zone fish community of two small southern Michigan lakes were examined. Abundance and habitat use of the fish were quantified by underwatertransect censuses. The sunfishes (Centrarchidae) dominated the communities numerically and by weight, with two species, the bluegill (Lepomis macrochirus) and largemouth bass (Micropterus salmoides) accounting for 85% of the community biomass. Spatial (habitat) segregation of species was evident along gradients of depth (distance from shore), vertical height in the water column, and vegetational structure. Several species showed intraspecific differences in the spatial distribution of size-classes. Comparative analyses of habitat use in the two lakes suggest that small size-classes are confined by predation to areas of dense cover and that within these areas competition determines space utilization by different species. The patterns of habitat use are discussed in relation to the food habits and morphology of species in this community. Only one clear case of segregation of two species by food size occurs (bass and bluegill); most other species segregate predominantly by habitat. The rarer centrarchids show strong niche complementarity with the codominant bass and bluegill.


2019 ◽  
Vol 609 ◽  
pp. 151-161 ◽  
Author(s):  
CO Bennice ◽  
AP Rayburn ◽  
WR Brooks ◽  
RT Hanlon

2004 ◽  
Vol 20 (4) ◽  
pp. 439-448 ◽  
Author(s):  
Graeme R. Gillespie ◽  
David Lockie ◽  
Michael P. Scroggie ◽  
Djoko T. Iskandar

The habitat associations of stream-breeding frogs were examined along a series of stream transects on Buton Island in south-east Sulawesi, Indonesia. Of the eight frog species located along streams, four were observed breeding in stream habitats. We examined spatial habitat partitioning among these species. Three of the four species were found to be associated with a non-random selection of the available perch sites. Strong partitioning between species in habitat associations was found; partitioning of the available habitat space was primarily associated with differences in proximity to stream features, and in the height of perch sites. General observations indicated that oviposition sites of most species were associated with the microhabitats in which the adult frogs were found. All four stream-breeding species appear to have synchronous breeding phenologies and the spatial relationships of these species within the habitat space appear to reflect partitioning of calling sites and oviposition sites. The stream-breeding frog community in this region of Sulawesi has much lower species richness and less specialized habitat use compared with other tropical stream-breeding frog communities in the region.


2012 ◽  
Vol 72 (2) ◽  
pp. 216-227 ◽  
Author(s):  
Jennifer G. Chipault ◽  
Dean E. Biggins ◽  
James K. Detling ◽  
Dustin H. Long ◽  
Robin M. Reich

Oecologia ◽  
2018 ◽  
Vol 186 (3) ◽  
pp. 831-842 ◽  
Author(s):  
Casey A. Pennock ◽  
C. Nathan Cathcart ◽  
Skyler C. Hedden ◽  
Robert E. Weber ◽  
Keith B. Gido

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