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   set  data   graph     files  public [Hookline survey] - Catch data conducted on hook and line along Pt. Lobos shore in California
from 2007 to 2012. (Impacts of size-selective mortality on sex-changing fishes)
   ?        I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_712899

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String This dataset contains fish hook-and-line census data that were collected by
hook-and-line fishing in a cooperative data collection effort on fishing boats
offshore of Pt. Lobos California.\u00a0Full\u00a0description of details is
provided in Starr et al. (2015).
attribute NC_GLOBAL awards_0_award_nid String 542383
attribute NC_GLOBAL awards_0_award_number String OCE-1435473
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1435473 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Hook and line survey data
Collected by Rick Starr
J. W. White, M. Carr, and R. Starr, PIs
Version 4 August 2017
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2017-08-16T20:57:53Z
attribute NC_GLOBAL date_modified String 2019-03-20T15:19:02Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.712899.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/712899 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Hook and line
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Used to collect fish census data
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 712910
attribute NC_GLOBAL instruments_0_description String A type of fishing methodology sometimes used to collect fish census data. It is a hook at the end of a line.
attribute NC_GLOBAL instruments_0_instrument_name String Hook and line
attribute NC_GLOBAL instruments_0_instrument_nid String 712909
attribute NC_GLOBAL instruments_0_supplied_name String Hook and line
attribute NC_GLOBAL keywords String area, bco, bco-dmo, biological, chemical, common, Common_Name, data, dataset, depth, Depth_Released, dmo, erddap, length, management, month, name, oceanography, office, preliminary, site, year
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/712899/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/712899 (external link)
attribute NC_GLOBAL param_mapping String {'712899': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/712899/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Oregon State University
attribute NC_GLOBAL people_0_affiliation_acronym String OSU
attribute NC_GLOBAL people_0_person_name String J Wilson White
attribute NC_GLOBAL people_0_person_nid String 516429
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of California-Santa Cruz
attribute NC_GLOBAL people_1_affiliation_acronym String UC Santa Cruz
attribute NC_GLOBAL people_1_person_name String Mark Carr
attribute NC_GLOBAL people_1_person_nid String 51504
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Moss Landing Marine Laboratories
attribute NC_GLOBAL people_2_affiliation_acronym String MLML
attribute NC_GLOBAL people_2_person_name String Dr Rick Starr
attribute NC_GLOBAL people_2_person_nid String 712778
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Oregon State University
attribute NC_GLOBAL people_3_affiliation_acronym String OSU
attribute NC_GLOBAL people_3_person_name String J Wilson White
attribute NC_GLOBAL people_3_person_nid String 516429
attribute NC_GLOBAL people_3_role String Contact
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL people_4_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_4_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_4_person_name String Hannah Ake
attribute NC_GLOBAL people_4_person_nid String 650173
attribute NC_GLOBAL people_4_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL project String Goby size-selection
attribute NC_GLOBAL projects_0_acronym String Goby size-selection
attribute NC_GLOBAL projects_0_description String Description from NSF award abstract:
Many marine fish species change sex during their lifetimes, and many of them are targets of commercial and recreational fishing. The timing of sex change in these animals is often related to body size, so populations typically consist of many small fish of the initial sex (usually female) and few large fish of the other sex (usually male). In nature, smaller fish are at a greater risk of mortality due to predation, but fishermen tend to seek larger fish. Thus fishing that targets larger individuals may skew sex ratios, removing enough of the larger sex to hinder reproduction. However, the extent to which size-selective mortality affects sex-changing fishes is poorly understood. This research will explore the effects of size-selective mortality on the population dynamics of sex-changing species using an integrated set of field experiments and mathematical models. It will provide the first experimental exploration of the sensitivity of different sex-change patterns and reproductive strategies to selective mortality. The results will advance our knowledge of the susceptibility and resilience of sex-changing organisms to different types of size-selective mortality and will reveal how sex-changing species can recover after size-selection ceases, as in populations within marine reserves where fishing is suddenly prohibited. The findings will inform fisheries management policies, which do not currently consider the ability of a species to change sex in setting fisheries regulations.
This project will consist of a three-year study of the effects of size-specific mortality on sex-changing fishes. Field experiments will use three closely related rocky-reef fishes that differ in sex-change pattern and are amenable to field manipulation and direct measurement of reproductive output. The species include a protogynous hermaphrodite (a female-to-male sex-change pattern common among harvested species) and two simultaneous hermaphrodites that differ in their ability to switch between male and female. Two types of experiments will be conducted on populations established on replicate patch reefs at Santa Catalina Island, California: (1) sex ratios will be manipulated to determine when the scarcity of males limits population-level reproductive output; and (2) experiments cross-factoring the intensity of mortality with the form of size-selection (i.e., higher mortality of large or small individuals) will test the demographic consequences of size-selective mortality. In concert with the field experiments, size- and sex-structured population models (integral projection models) will be developed for use in three ways: (1) to evaluate how different types of selective mortality should affect population dynamics; (2) to predict outcomes of the field experiments, testing/validating the model and allowing direct prediction of the ecological significance of short-term selection; and (3) to fit to existing survey data for a fourth species, a widely fished, sex-changing fish, inside and outside of marine reserves. Part (3) will evaluate whether and how quickly the mating system and reproductive output of that species (not directly measurable in the field) is recovering inside reserves. This integrated set of field experiments and models will yield novel insight into the effects of size-selective mortality on the population dynamics of sex-changing marine species.
attribute NC_GLOBAL projects_0_end_date String 2018-02
attribute NC_GLOBAL projects_0_geolocation String Southern California, Santa Catalina Island
attribute NC_GLOBAL projects_0_name String Impacts of size-selective mortality on sex-changing fishes
attribute NC_GLOBAL projects_0_project_nid String 516431
attribute NC_GLOBAL projects_0_start_date String 2015-03
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String Area,Common_Name
attribute NC_GLOBAL summary String Catch data conducted on hook and line along Pt. Lobos shore in California from 2007 to 2012.
attribute NC_GLOBAL title String [Hookline survey] - Catch data conducted on hook and line along Pt. Lobos shore in California from 2007 to 2012. (Impacts of size-selective mortality on sex-changing fishes)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Year   short  
attribute Year _FillValue short 32767
attribute Year actual_range short 2007, 2012
attribute Year bcodmo_name String unknown
attribute Year description String Year of sampling
attribute Year long_name String Year
attribute Year units String unitless
variable Month   String  
attribute Month bcodmo_name String month
attribute Month description String Month of sampling
attribute Month long_name String Month
attribute Month nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/MNTHXXXX/ (external link)
attribute Month units String unitless
variable Area   String  
attribute Area bcodmo_name String site
attribute Area description String Area of data collection; Pt. Lobos (PL)
attribute Area long_name String Area
attribute Area units String unitless
variable Site   String  
attribute Site bcodmo_name String site
attribute Site description String Site type; Marine Protected Area (MPA) or Reference (REF)
attribute Site long_name String Site
attribute Site units String unitless
variable Common_Name   String  
attribute Common_Name bcodmo_name String unknown
attribute Common_Name description String Species common name
attribute Common_Name long_name String Common Name
attribute Common_Name units String unitless
variable Length   byte  
attribute Length _FillValue byte 127
attribute Length actual_range byte 7, 40
attribute Length bcodmo_name String unknown
attribute Length description String Length of fish
attribute Length long_name String Length
attribute Length units String centimeters
variable Depth_Released   short  
attribute Depth_Released _FillValue short 32767
attribute Depth_Released actual_range short 35, 164
attribute Depth_Released bcodmo_name String unknown
attribute Depth_Released colorBarMaximum double 8000.0
attribute Depth_Released colorBarMinimum double -8000.0
attribute Depth_Released colorBarPalette String TopographyDepth
attribute Depth_Released description String Depth of fish release
attribute Depth_Released long_name String Depth
attribute Depth_Released standard_name String depth
attribute Depth_Released units String meters

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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